[go: up one dir, main page]

WO2008124879A1 - Appareil permettant de purifier un liquide contaminé - Google Patents

Appareil permettant de purifier un liquide contaminé Download PDF

Info

Publication number
WO2008124879A1
WO2008124879A1 PCT/AU2008/000521 AU2008000521W WO2008124879A1 WO 2008124879 A1 WO2008124879 A1 WO 2008124879A1 AU 2008000521 W AU2008000521 W AU 2008000521W WO 2008124879 A1 WO2008124879 A1 WO 2008124879A1
Authority
WO
WIPO (PCT)
Prior art keywords
droplets
contaminated liquid
condenser
airflow
airstream
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/AU2008/000521
Other languages
English (en)
Inventor
Phillip Bellamy
Steven Walter Hannah
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SOLAR SUSTAIN INTERNATIONAL Pty Ltd
Original Assignee
SOLAR SUSTAIN INTERNATIONAL Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2007901907A external-priority patent/AU2007901907A0/en
Application filed by SOLAR SUSTAIN INTERNATIONAL Pty Ltd filed Critical SOLAR SUSTAIN INTERNATIONAL Pty Ltd
Priority to AU2008238608A priority Critical patent/AU2008238608B2/en
Publication of WO2008124879A1 publication Critical patent/WO2008124879A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0011—Heating features
    • B01D1/0029—Use of radiation
    • B01D1/0035—Solar energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/14—Evaporating with heated gases or vapours or liquids in contact with the liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/16—Evaporating by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
    • B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
    • C02F1/12—Spray evaporation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Definitions

  • the present invention relates to an apparatus for purifying contaminated liquid.
  • the invention relates to a desalination unit which relies on evaporation of the contaminated liquid and subsequent condensation to separate potable water from impurities.
  • the invention also relates to a method of purifying contaminated liquid.
  • a transportable purification unit is also disclosed. While the invention is often described below in terms of desalination, it is to be understood that the invention is not limited to the mere separation of salt from water but can be applied to contaminated liquid containing many other types of impurities.
  • Another known method of desalination uses distillation of seawater through a process of evaporation and condensation to produce potable water. Such methods typically employ high temperatures, thereby requiring users and maintenance personnel to have special qualifications to operate the equipment eg. boilermaker's certificate. Furthermore, the more advanced techniques of distillation known as flash distillation use multiple stages, pressures and vacuums but still result in low yields.
  • Evaporative techniques are known by creating small droplets of the contaminated liquid in an airstream.
  • One known method published in US patent no 6,699,369 uses high pressure nozzles to create very small droplets less than 20 microns, in order to get full evaporation of the droplets over a short distance.
  • the apparatus requires a filter such as an electrostatic particle filter.
  • the high pressure pumps and nozzles required to create the fine mist and the need for the particle filter increase the costs associated with such a system.
  • an apparatus for purifying contaminated liquid including:
  • a disperser for creating droplets of the contaminated liquid in the airstream
  • a heater disposed upstream of the disperser for heating the airstream, wherein the apparatus is operable within a range of predetermined conditions to cause only partial evaporation of water from a substantial proportion of the droplets;
  • a condenser for condensing the evaporated water, wherein the condenser is spaced downstream from the heater and/or the disperser such that under the predetermined conditions, the droplets settle out of the air under gravity prior to reaching the condenser.
  • the disperser operates to eject a stream of droplets into the airstream.
  • the apparatus may be provided with nozzles, misters or atomisers. Small droplet size is generally not critical. Therefore, the nozzles may operate at a pressure less than 100 psi.
  • the airstream may pass through other types of droplet formation means, including fountains and water curtains. The airstream may be created by fans which preferably blow air from the disperser to the condenser.
  • the heater may operate by heating the airstream.
  • the heater operates by solar energy.
  • the solar energy may be directly incident onto the apparatus.
  • the airstream may pass through a heat gain heat exchanger which is heated by solar energy.
  • the contaminated liquid could be preheated prior to spraying into the apparatus.
  • the apparatus may include an evaporation chamber including a dispersal portion where droplets are dispersed, and a settling portion where droplets settle onto the floor of the chamber.
  • the settling portion may include drip trays and/or a guttering system to drain away the settled droplets.
  • the major axis of the settling portion is arranged substantially horizontally. This results in a greater likelihood of the partially evaporated droplets hitting the floor of the settling portion, prior to reaching the condenser.
  • Each of the evaporation chambers has its own dispersal portion and settling portion.
  • the evaporation chambers operate at substantially atmospheric pressure.
  • the condenser may be in the form of a heat exchanger.
  • the heat exchanger may be cooled by contaminated liquid which circulates through the heat exchanger prior to being introduced into the apparatus. This serves to heat up the contaminated liquid to enable greater efficiency. Not all of the contaminated liquid may be introduced into the apparatus. For example, where there is an ample supply of liquid such as seawater, a large proportion of the seawater may be returned to the sea after being passed through the heat exchanger.
  • the factors affecting the conditions to which the droplets are subjected include the heat input, the transit time of the droplets and the droplet size. Any one or more of these factors may be varied to adjust the conditions within the apparatus.
  • the heat input may be varied by adjusting the air temperature of the heated airstream.
  • the transit time for the droplet may be varied by adjusting the flow rate for the airstream.
  • the droplet size may be somewhat predetermined according to the selection of spray nozzles. However, a variation in pressure or flow rate may affect the droplet size.
  • the other factors may be adjusted to obtain the predetermined conditions which allow the partial evaporation of the droplets.
  • the range of predetermined conditions is so as to achieve partial evaporation of the droplets, while accounting for variation in the input factors, e.g. heat input.
  • a control system may be employed in the apparatus to operate the apparatus within the range of predetermined conditions.
  • the heat input from the solar powered heat exchanger may be variable and where the heat input increases, the fan speed may be increased to reduce transit time for the droplets within the apparatus so as to maintain partial evaporation of the droplets.
  • the control system may include contaminant detection in the water collected from the condenser. If contaminant is detected then it is considered that the droplets are not falling out of the airstream and are hitting the condenser. Accordingly the operating factors may be changed by the control system to avoid this condition.
  • a method of purifying contaminated liquid including:
  • the above invention may employ any of the features set out above in connection with the first aspect of the invention.
  • a method of purifying contaminated liquid including:
  • the step of collecting involves allowing the partially evaporated droplets to settle under gravity.
  • the contaminated liquid is understood to include water which is non-potable, in that it includes contaminants such as salt, i.e. seawater or other contaminants such as sewerage, heavy metals, biological material etc.
  • the present invention aims to purify the contaminated liquid to at least the standard of potable water.
  • an apparatus for purifying contaminated liquid including: a plurality of evaporation chambers for at least partially evaporating water from contaminated liquid;
  • airflow means for creating airflow through the plurality of evaporation chambers, wherein the airflow through the plurality of evaporation chambers is in parallel;
  • the closed airflow circuit creates greater efficiencies than would be obtained if fresh air was continually introduced from the outside environment.
  • a number of evaporation chambers only a single airflow means is needed to push air through each of the evaporation chambers in parallel.
  • creating multiple evaporation chambers enables the evaporation chambers to be configured to have a major axis which is substantially horizontal. This enables a settling portion of sufficient length to enable partially evaporated/denuded droplets and contaminants to fall out of the airflow.
  • the apparatus may include a heat exchanger which heats up the air prior to entry into the multiple evaporation chambers.
  • the air may be heated to approximately 100 0 C (or in the range 50 0 C to 120 0 C) at which point, the relative humidity in the air may be 2-3%.
  • the humidity is increased by the dispersers which distribute the contaminated liquid in a finally divided form. Water is evaporated from the surface of the droplets. This is understood to be by a mechanism of interaction between the surface of the droplets and the heated air molecules.
  • the air may have lost some of its heat and be at a temperature of 60°C (or in the range of 60°C to 120 0 C) and 100% relative humidity. Under these conditions, it is known that one cubic metre of air holds 125 grams of water.
  • a condenser condenses the evaporated vapour and the temperature of the air drops to 25-30 0 C and 100% relative humidity.
  • one cubic metre of air will hold only 15 grams of water. It will be appreciated that air at a lower temperature can hold much less water than air at a higher temperature. Thus, one cubic metre of saturated air at 60 0 C will yield approximately 100 grams of water at the condenser.
  • the air which then passes through the return air duct at 25-30 0 C will still have 100% relative humidity. Depending on the conditions outside the apparatus, this relative humidity is probably far greater than the air conditions outside, which if in desert conditions, may be only a few percent relative humidity.
  • the air in the return air duct then passes through the heat exchanger where it is heated up to approximately 100 0 C. At this temperature, the water held by the air represents only 2-3% relative humidity. The cycle thus continues.
  • the return air duct may comprise two end sections and an intermediate elongate section.
  • the end sections may have an inner curved periphery to create laminar flow around the bends.
  • the heat exchanger and the airflow means may be disposed at one of the end sections.
  • the condenser may be disposed at the other of the end sections.
  • an apparatus for purifying contaminated liquid including:
  • one or more evaporation chambers for evaporating water from contaminated liquid
  • the airflow circuit includes two elongate portions and two end sections to create the closed loop, wherein the end sections each have a curved inner periphery.
  • the one or more evaporation chambers comprise one of the longitudinal sections.
  • the return air duct may comprise the two end sections and the other longitudinal section.
  • the configuration is such that the apparatus can be received into a housing which makes the apparatus transportable.
  • the housing may be a standard sized shipping container. Rails may be provided, enabling the apparatus to slide in and out of the container for maintenance purposes.
  • a transportable purification unit including:
  • a transportable container wherein the apparatus is configured to be movable into and out of the transportable container.
  • the apparatus and the transportable container have co-operable guide means to enable the apparatus to slide in and out of the transportable container.
  • the internal periphery of the container may be provided with side rails, with rollers provided on the apparatus to move along the rails.
  • the transportable container is preferably a standard sized shipping container able to be mounted on a semi-trailer.
  • the transportable container may be partitioned to provide a control portion of the container. In this control portion, the control instrumentation may be remote from the remainder of the apparatus.
  • This invention may also be said broadly to consist in the parts, elements and features referred to or indicated in the specification of the application, individually or collectively, and any or all combinations of any two or more of said parts, elements or features, and where specific integers are mentioned herein which have known equivalents in the art to which this invention relates, such known equivalents are deemed to be incorporated herein as if individually set forth.
  • the invention consists in the foregoing and also envisages constructions of which the following gives examples.
  • Figure 1 is a schematic view of the apparatus for purifying contaminated liquid in accordance with a preferred embodiment of the present invention.
  • Figure 2 is a longitudinal sectional view of the main body of the apparatus of Figure 1.
  • Figures 1 and 2 show the main body 10 of the apparatus which includes three elongate evaporation chambers 12 which are vertically stacked one on top of the other. Airflow is driven through the evaporation chambers 12 by airflow means in the form of a bank of fans 14 held within a rack 15. Fan cowling 17 directs the airflow into each of the evaporation chambers 12. Contaminated liquid is introduced into the three evaporation chambers 12 in a finely divided droplet form through an array of spray nozzles 19. In Figure 1 , the introduction is depicted at arrow 16, but realistically this would take place further upstream in the evaporation chambers 12. The feed of contaminated liquid may derive from source water 18 such as seawater.
  • source water 18 such as seawater.
  • the apparatus is designed to accept a range of source liquids (seawater, brackish well water, grey water, etc.)
  • This source liquid 18 is pumped through pumps 20 through the condenser 22 on route to the evaporation chambers 12. This achieves preheating of the source liquid 18.
  • Not all of the source liquid 18 which is passed through the condenser 22 need be feed through the evaporation chambers 12 and instead may be routed at three-way valve 23 to waste water container 24.
  • the evaporation chambers 12 may also be fed with waste water 24 which has been collected from the base of the evaporation chambers 12. This waste water 24 is circulated through purge pumps 26 and recycling pumps 28. Periodically, the purge pumps 26 may empty the waste water from the waste container 24.
  • each of the evaporation chambers 12 may be provided with collection recesses 32 for this purpose.
  • the saturated airstream will then flow onto the condenser 22 whereupon the water vapour condenses and is collected in fresh water collection tray 34.
  • the collected water is then pumped through drinking water pumps 36 to a potable water collection vessel 38.
  • the heat exchanger is heated by solar energy collected by an external array of reflective solar energy collectors 40.
  • the Solar Collector array consists of a series of semi-cylindrical reflector surfaces angled and hinged to concentrate the sun's rays on an energy collection pipe 42 located along the focal axis of each array. Each reflector surface is approximately 3 metres long and 2.5 metres wide.
  • the arrays are pivoted and connected together so as to allow simultaneous tracking of the sun throughout the day. This tracking is automatic and driven by a small electrically activated, hydraulic actuator (not shown).
  • the solar tracking may be powered by a photo-voltaic cell. Correct angle and direction is determined by GPS and a Process Control System (not shown).
  • the reflector plates are curved and made from shaped polystyrene with a silver film glued to the polystyrene. The curvature has been determined to give a focus at 1.2 meters from the central axis.
  • the energy collection pipes 42 form part of a heating loop 44 and are filled with a liquid.
  • a high specific-heat liquid is used throughout the heating loop 44, and is circulated using a variable speed pump 46 or pump array, under direct control from the control system.
  • the pump may be a photo-voltaic powered circulation pump.
  • the liquids that can be used include several substances or compounds such as Glycol with a boiling point of 212 0 C, or one of the synthetic brake fluids with a boiling point of ⁇ 400°C. Water is unsuitable due to its low boiling point as this would require that the system operate at significantly higher pressures and requires the operator to hold a current valid boiler attendant certificate.
  • the system has an expansion chamber 48 built into the heating loop 44 so that the system does not operate at high pressure.
  • the expansion chamber 48 is located downstream of the heat exchanger 30 so that little heat is lost from the system once acquired.
  • the amount of heat that enters the heat exchanger 30 is determined by the control system that has the ability to vary the flow rate of the liquid and possibly restrict or add additional solar panels to the circuit as weather and load conditions vary.
  • the body 10 is in the form of an enclosed steel "shell” constructed to fit inside a shipping container (not shown).
  • This "shell” houses the heat exchanger 30, evaporator chambers 12, condenser 22 and fan bank 14.
  • a partitioned equipment and control room is provided to house the electrical, control, communication and pumping systems. These are powered from a Photo-Voltaic (PV) array mounted on the roof of the container.
  • PV Photo-Voltaic
  • Various sensors such as humidity sensors 27, 29, convey readings to the control room.
  • An access door 31 is provided in the side of the shell.
  • the energy collected from the external solar array flows through the heat exchanger 30.
  • This consists of a tube and plate style heat exchanger situated in the main airstream within the body 10. Energy is transferred from the liquid via the exchanger 30 into the air. This heated air then flows onto the entrance to the evaporator chambers 12.
  • the heat exchanger 30 may comprise a commercial radiator with a 3 coil copper pipe centre and plastic coated aluminium fins. The fins are coated with plastic to extend the life of the heat exchanger.
  • the temperature range for the heat exchanger 30 is incoming air at ⁇ 30°C and leaving at ⁇ 100°C.
  • the relative humidity of the air at these two measuring points will be, (30 0 C), -100% and at 100 0 C the relative humidity will be -10-15%.
  • the air then enters the evaporation chamber 12 which are in the form of tunnels.
  • the purpose of this stage is to increase the humidity of the 100 0 C air from the low level of -10-15% relative humidity to the desired 100% relative humidity.
  • the effect of raising the relative humidity is to lower the air temperature to ⁇ 60°C (although it may be in the range of 50 0 C to 120 0 C).
  • This temperature drop is caused by the energy used in relation to the latent heat of evaporation, although we do achieve a considerable saving in energy by not using all the heat energy to break the small atomic bonds holding the water molecules together in a rough lattice network.
  • the evaporation chambers 12 may have several components acting as dispersers to achieve the humidification of the air. They are:
  • a misting system that creates a large surface area for interaction between the heat, water, airflow and salt and other contaminant molecules.
  • the misters are simply a series of spray nozzles, available from several agricultural spray manufacturers, with the nozzles operating at less than 100PSI.
  • the mister units have a ceramic nozzle-head to increase the life of the misters.
  • the power for the mister pump (not shown) may come from photo-voltaic cells mounted on the roof of the container.
  • the nozzles have the ability to be directed in different directions and this design criterion is used to increase the interaction between the droplets and the airflow.
  • the droplet size varies with the water pressure and the orifice dimension.
  • the orifice size depends on the particular nozzle selected and we currently use ALBUZ ATR nozzles.
  • the starting droplet size that we can set varies in the range of 81 microns to 252 microns.
  • the water pressure range is from 3 to 5 Bar or 44 to 73 PSI.
  • a 'Coolgardie Safe' also acts as a humidification medium.
  • the Coolgardie Safe involves a mesh screen over which the contaminated liquid flows to assist with dispersal of the liquid into the airstream. Depending on the location of the safe structures, they may also operate to remove partially evaporated droplets from the airstream.
  • the internal surface area of the chamber is also wet increasing the air/water surface area.
  • Droplets which fall out of solution are collected in collection troughs 32 in each evaporation chamber and the liquid is recycled through the mister system until the concentration of salts or contaminants in solution becomes greater than a nominated concentration.
  • the liquid is purged at that point.
  • the control system monitors the liquid concentration and manages the purge/recycle points. This may be a return to the source (e.g. ocean) or storage for later disposal (inland evaporation ponds).The concentration and temperature of this discharge can be carefully controlled to suit local environmental requirements.
  • the control system also monitors the air flow rate and the water pressure and varies these with climatic conditions.
  • the flow of air is controlled by a series of 30, 24 volt variable speed fans 14 located on a framework suspended above the heat gain heat exchanger 30.
  • the air speed is determined by the fan speed setting and the fan placement. There are 4 fan speed settings.
  • the fan placement is either flat, or upright. The upright position provides slightly higher air speeds for the same fan speed setting.
  • the measured air speed through the evaporation/misting chamber is 0.25ms "1 to 2.5 ms '1 .
  • the speed and sequencing of the fans is controlled through the feedback loop of the control system allowing variation depending on climatic conditions and conditions within the desalination unit.
  • the condenser 22 is a radiator type heat exchange unit manufactured from 4 coil copper pipe and plastic coated aluminium fins set at 12 fins per inch.
  • the source liquid 18 is circulated through the condenser 22 before being delivered to the misting system. This has the effect of raising the temperature of the liquid entering the evaporation chambers, while setting the operating temperature of the condenser. If ground water at 16 0 C, (e.g. Western Australian wheatbelt groundwater), is the source liquid then that is the temperature of operation of the condenser 22. If seawater at 23°C, (sub-tropical seawater), is used then that is the operating temperature.
  • the condenser 22 As the air passes through the condenser 22 and the air temperature lowers then the water held in the air drops out of solution collecting on the plastic coated fins and runs into a collecting trough 34.
  • the water is pumped from the collecting trough 34 to an outside storage tank 38.
  • the fresh water pump 36 is controlled by the control system and powered from the PV solar system mounted on the container roof. From the Condenser, the cooler, saturated air then recirculates around the system back to the heat exchanger 30 ready for another circuit.
  • the operation and performance of the apparatus are controlled by the control system.
  • control system consists of microcomputer hardware, and utilises the latest in instrumentation technology.
  • the apparatus is housed in a shipping container.
  • the apparatus itself is mounted on rails that allow the apparatus to be removed from the container for maintenance and other purposes.
  • the container also protects the unit from casual modification and public access.
  • a source water filter is located in the control room.
  • the filter is a 'netafiri plate filter array that has three plate filter modules. These units have back flush capability.
  • the filters are located above a wash down trough to allow cleaning without making a mess in the control room.
  • the pumps for the apparatus are also located in the control room. They are setup in five levels to allow easy access. The operation of the pumps is controlled by the control system which is also located on a workstation platform in the control room. Pipes puncture the wall between the control room and the main part of the container, allowing easy connection of the apparatus to the various pumps and controls.
  • Parameters monitored that are included in the feedback control system include, relative humidity, temperature, air flow velocity, PV power generation, heat collection, pumping conditions, etc to provide best fit calculations.
  • the control system then moves the various sectors to those predicted points and then re-evaluates the performance.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

L'invention concerne un appareil (10) permettant de purifier un liquide contaminé constitué d'un moyen d'écoulement d'air (15) qui crée un flux d'air. Un dispositif de dispersion (19) crée des gouttelettes de liquide contaminé dans le flux d'air. Un dispositif de chauffage (30) situé en amont du dispositif de dispersion (19) chauffe le flux d'air. L'appareil (10) fonctionne dans une plage de conditions prédéterminées pour ne provoquer qu'une évaporation partielle de l'eau contenue dans une partie importante des gouttelettes. Un condenseur (22) permet de condenser l'eau évaporée. Le condenseur (22) est situé en aval du dispositif de chauffage (30) et/ou du dispositif de dispersion (19) de sorte que dans les conditions prédéterminées, les gouttelettes se séparent de l'air par gravité avant de pénétrer dans le condenseur (22). Un procédé de purification d'un liquide contaminé est également décrit. L'appareil (10) peut être constitué de multiples chambres d'évaporation (12) et d'un seul conduit d'air de retour (13). L'appareil (10) peut être constitué d'un circuit fermé d'écoulement d'air délimité par deux parties allongées (12, 13) et deux sections terminales ayant chacune une périphérie interne incurvée. L'appareil (10) peut être conçu pour pouvoir être placé dans un contenant de transport et pour en être sorti.
PCT/AU2008/000521 2007-04-11 2008-04-11 Appareil permettant de purifier un liquide contaminé Ceased WO2008124879A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2008238608A AU2008238608B2 (en) 2007-04-11 2008-04-11 Apparatus for purifying contaminated liquid

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2007901907 2007-04-11
AU2007901907A AU2007901907A0 (en) 2007-04-11 Apparatus for purifying contaminated liquid

Publications (1)

Publication Number Publication Date
WO2008124879A1 true WO2008124879A1 (fr) 2008-10-23

Family

ID=39863170

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2008/000521 Ceased WO2008124879A1 (fr) 2007-04-11 2008-04-11 Appareil permettant de purifier un liquide contaminé

Country Status (2)

Country Link
AU (1) AU2008238608B2 (fr)
WO (1) WO2008124879A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009037306A1 (de) * 2009-08-14 2011-02-17 Lutz, Andreas Verfahren und Vorrichtung zur Meerwasserentsalzung
WO2016004907A1 (fr) * 2014-07-08 2016-01-14 Zátopek Zdeněk Procédé de distillation solaire d'eau salée servant à acquérir de l'eau douce et dispositif de mise en œuvre dudit procédé
CN110508015A (zh) * 2019-08-12 2019-11-29 佛山市欧若拉生物科技有限公司 一种植物原料蒸发提取用冷却装置
CN110980850A (zh) * 2019-12-19 2020-04-10 西安交通大学 太阳能取水发电装置及取水发电方法
CN113277583A (zh) * 2021-05-19 2021-08-20 上海可沅建筑工程有限公司 一种节能减排的蒸汽法高含盐污水处理系统
EP4367064A4 (fr) * 2021-09-06 2024-10-30 Ecostar-Nautech Co., Ltd Méthode de production d'eau douce à partir de solutions salines aqueuses

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2940886A1 (de) * 1979-10-09 1981-05-07 Alfred Prof. Dr. 5100 Aachen Boettcher Anlage zur entsalzung von meerwasser
US4323424A (en) * 1980-08-25 1982-04-06 Secunda David J Liquid-solids separation process
US5207928A (en) * 1991-05-23 1993-05-04 Lerner Eric J Method for desalination and fresh water recovery
US5399260A (en) * 1987-12-10 1995-03-21 Eldredge; William A. Field portable water purification system
WO2003013682A1 (fr) * 2001-08-10 2003-02-20 U.S.Aquasonics Corporation Installation et procede de dessalement thermique avec formation et evaporation sous pression de gouttelettes
WO2004076359A1 (fr) * 2003-02-26 2004-09-10 Sven Olof Sonander Dessalement de l'eau
US6852218B2 (en) * 2002-04-25 2005-02-08 Astral Pool Espana, S.A.U. Swimming pool water treatment plant
WO2005068377A1 (fr) * 2004-01-15 2005-07-28 Wodapure Pty Ltd Installation de purification d'eau
US20050184000A1 (en) * 2002-10-25 2005-08-25 Jowett E. C. Wastewater treatment station in shipping container

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2940886A1 (de) * 1979-10-09 1981-05-07 Alfred Prof. Dr. 5100 Aachen Boettcher Anlage zur entsalzung von meerwasser
US4323424A (en) * 1980-08-25 1982-04-06 Secunda David J Liquid-solids separation process
US5399260A (en) * 1987-12-10 1995-03-21 Eldredge; William A. Field portable water purification system
US5207928A (en) * 1991-05-23 1993-05-04 Lerner Eric J Method for desalination and fresh water recovery
WO2003013682A1 (fr) * 2001-08-10 2003-02-20 U.S.Aquasonics Corporation Installation et procede de dessalement thermique avec formation et evaporation sous pression de gouttelettes
US6852218B2 (en) * 2002-04-25 2005-02-08 Astral Pool Espana, S.A.U. Swimming pool water treatment plant
US20050184000A1 (en) * 2002-10-25 2005-08-25 Jowett E. C. Wastewater treatment station in shipping container
WO2004076359A1 (fr) * 2003-02-26 2004-09-10 Sven Olof Sonander Dessalement de l'eau
WO2005068377A1 (fr) * 2004-01-15 2005-07-28 Wodapure Pty Ltd Installation de purification d'eau

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009037306A1 (de) * 2009-08-14 2011-02-17 Lutz, Andreas Verfahren und Vorrichtung zur Meerwasserentsalzung
WO2016004907A1 (fr) * 2014-07-08 2016-01-14 Zátopek Zdeněk Procédé de distillation solaire d'eau salée servant à acquérir de l'eau douce et dispositif de mise en œuvre dudit procédé
CN110508015A (zh) * 2019-08-12 2019-11-29 佛山市欧若拉生物科技有限公司 一种植物原料蒸发提取用冷却装置
CN110980850A (zh) * 2019-12-19 2020-04-10 西安交通大学 太阳能取水发电装置及取水发电方法
CN110980850B (zh) * 2019-12-19 2022-05-03 西安交通大学 太阳能取水发电装置及取水发电方法
CN113277583A (zh) * 2021-05-19 2021-08-20 上海可沅建筑工程有限公司 一种节能减排的蒸汽法高含盐污水处理系统
CN113277583B (zh) * 2021-05-19 2023-03-28 湖北中原楚天科技有限公司 一种节能减排的蒸汽法高含盐污水处理系统
EP4367064A4 (fr) * 2021-09-06 2024-10-30 Ecostar-Nautech Co., Ltd Méthode de production d'eau douce à partir de solutions salines aqueuses

Also Published As

Publication number Publication date
AU2008238608B2 (en) 2013-05-02
AU2008238608A1 (en) 2008-10-23

Similar Documents

Publication Publication Date Title
US10538435B2 (en) Solar desalination system employing a humidification-dehumidification process
Aref et al. An experimental investigation on a portable bubble basin humidification/dehumidification desalination unit utilizing a closed-loop pulsating heat pipe
Eltawil et al. Enhancing the solar still performance using solar photovoltaic, flat plate collector and hot air
US10183872B2 (en) Counter circulating liquid processing system by repeatedly re-using thermal energy
US10071918B2 (en) Water harvester and purification system
Shehata et al. Achievement of humidification and dehumidification desalination system by utilizing a hot water sprayer and ultrasound waves techniques
US9428403B2 (en) Large scale insulated desalination system
AU2008238608B2 (en) Apparatus for purifying contaminated liquid
EP2804682B1 (fr) Station de dessalement utilisant une pompe à chaleur et de l'énergie photovoltaïque
Dayem et al. Psychometric study and performance investigation of an efficient evaporative solar HDH water desalination system
WO2006138516A2 (fr) Systeme de purification des eaux entraine par diffusion d'air chauffe
US10329167B2 (en) Compact high-efficiency solar distillation device
CN107027304B (zh) 多效太阳能蒸馏系统及相关方法
US20180169541A1 (en) Solar desalination device and method
KR101647994B1 (ko) 해수담수화가 가능한 태양광발전장치
US20140158516A1 (en) Water Supply Systems
Moustafa et al. Performance of a self-regulating solar multistage flash desalination system
US20160264431A1 (en) Purification method and purification system for water polluted with accompanying substances
Alnaimat et al. Solar desalination
EP2229988B1 (fr) Dispositif et procédé de purification de liquide et génération électrique
Mabrouk et al. Experimental evaluation of novel hybrid multi effect distillation–membrane distillation (MED-MD) driven by solar energy
US12324993B1 (en) Direct solar desalination with atomized droplets and heat recovery
CN208916849U (zh) 一种轻小型太阳能海水淡化装置
US20120234666A1 (en) Apparatus and methods for water treatment
Hilarydoss A detailed review on various aspects of inverted solar still desalination systems proposed for clean water production

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08733348

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2008238608

Country of ref document: AU

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2008238608

Country of ref document: AU

Date of ref document: 20080411

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 08733348

Country of ref document: EP

Kind code of ref document: A1