The equipment of disc tube reverse osmosis (dt-ro) technical finesse percolate
Technical field
The utility model relates to a kind of treatment facility of high concentrated organic wastewater, particularly relates to a kind of treatment facility of percolate.
Background technology
The percolate of household refuse landfill sites is the high concentration organic sewage that rubbish produces in the landfill process, is mainly derived from the interior moisture of precipitation, organic matter degradation and rubbish itself.Contain 93 kinds of objectionable impuritiess according to surveying and determination in the percolate, 22 kinds of emphasis control lists that have been put into China and American National Environmental Protection Administration are wherein arranged, in addition also contain toxic substances such as plurality of heavy metal ion, bacterium, virus in the percolate.Calculate with its pollution load, one ton of percolate is equivalent to 100~200 tons of municipal effluents to the harm of environment.Because present many regional domestic refuses are mixed collections, be subjected to living condition, living habit, the influence in area and season, the composition of percolate is very complicated, for example there are data to show that the chemical oxygen demand COD of Chinese consumer waste landfill percolate is between 3000-50000mg/L, ss suspended solid is about 2000mg/L, ammonia nitrogen is between 1000-3000mg/L, the pH value is between 4~9, add halogenated aryl hydrocarbon, pollution such as heavy metal and virus, directly discharging will be to underground and surface water body on every side as not handled, soil and ecotope bring immeasurable pollution and harm, to peripheral resident's healthy generation serious threat.
Percolate water quality is subjected to influence of various factors, for example rubbish composition, quantity of precipitation, landfill yard structure, landfill time etc.Percolate in the different refuse landfills, the scope of COD between several thousand to several ten thousand, BOD
5Scope at hundreds of between several thousand, other indexs such as SS change also very greatly.Generally speaking, inorganics component content and constantly changes along with the continuity of landfill phase much larger than organic matter component content in the percolate, organism is further degraded, the BOD/COD value reduces, and is unsuitable for biological degradation gradually, and also can continue to produce percolate 10~30 years after the landfill yard closing.
The percolate treatment plant that has built up at present adopts traditional biochemical processing, and the processing of this technique functions originates from life sewage is extremely incompatible to this toxicity height of percolate, sewage that change of water quality is big.The new technology that has occurred physical chemistry art breading percolate in recent years again in succession.Must use the reverse osmosis technology of membrane process craft could satisfy emission standard in the existing sewage treatment process, traditional embrane method reverse osmosis technology adopts plate and frame, tubular type, spiral wound and tubular fibre formula reverse osmosis unit, and these devices mainly are to purify and the water treatment device researched and developed at seawater, water purifying again.The sewage that percolate is the character complexity of a kind of high density, high suspended matter, high conductivity has been addressed in the front, because it is parallel forward stream that these reverse osmosis units are structurally intake with permeable direction, directly utilize shortcomings such as easily stifled, easy fouling can appear in above-mentioned reverse osmosis unit treating refuse percolate, water production rate is few, cleaning is frequent.
The utility model content
The purpose of this utility model is to provide the percolate that a kind of technology is reliable, cost is low, treatment effect is good treatment facility.
The equipment of disc tube reverse osmosis (dt-ro) technical finesse percolate of the present utility model, comprise main pipe line, sand-bed filter, core formula strainer, main pump, disc tube reverse osmosis (dt-ro) film column assembly, degas system and add acid system, described sand-bed filter, core formula strainer and main pump are serially connected on the described main pipe line successively, described add acid system by pipe connection on the described main pipe line between described sand-bed filter and the core formula strainer, described disc tube reverse osmosis (dt-ro) film column assembly comprises that several are connected to disc tube reverse osmosis (dt-ro) film pole unit on the described main pipe line after the described main pump in turn by pipeline, each described disc tube reverse osmosis (dt-ro) film pole unit comprises a fluid inlet and two liquid outlets, the described fluid inlet of each described disc tube reverse osmosis (dt-ro) film pole unit links to each other with pump by pipeline, described pump links to each other with described main pipe line by pipeline, one of them liquid outlet of each described disc tube reverse osmosis (dt-ro) film pole unit links to each other with the described main pipe line that is positioned at after this disc tube reverse osmosis (dt-ro) film pole unit fluid inlet by pipeline, and another liquid outlet links to each other with described degas system by pipeline.
The equipment of disc tube reverse osmosis (dt-ro) technical finesse percolate of the present utility model, wherein said main pump are high-pressure pump.
The equipment of disc tube reverse osmosis (dt-ro) technical finesse percolate of the present utility model, the quantity of wherein said core formula strainer is more than two, is connected in parallel on the described main pipe line.
The equipment of disc tube reverse osmosis (dt-ro) technical finesse percolate of the present utility model wherein is equipped with valve on the pipeline of each described core formula strainer front and back end.
Be equipped with valve on the described main pipe line after the equipment of disc tube reverse osmosis (dt-ro) technical finesse percolate of the present utility model, wherein said disc tube reverse osmosis (dt-ro) film column assembly and on the pipeline after the described degas system.
The equipment of disc tube reverse osmosis (dt-ro) technical finesse percolate of the present utility model wherein also comprises the PLC Controlling System, described PLC Controlling System by lead respectively with described main pump, disc tube reverse osmosis (dt-ro) film column assembly, degas system with add acid system and link to each other.
The equipment of disc tube reverse osmosis (dt-ro) technical finesse percolate of the present utility model has the following advantages:
1, efficiently integrated, floor space is little;
2, adaptability is strong, and treatment effect is steady in a long-term reliable, is applicable to the water quality of household refuse landfill sites different steps and Various Seasonal;
3, effluent quality is good, and bacterium and indicator of suspended solids are lower.
Description of drawings
Fig. 1 is the schematic flow sheet of the equipment of the utility model disc tube reverse osmosis (dt-ro) technical finesse percolate.
Embodiment
Be further described in detail below in conjunction with the equipment of accompanying drawing the utility model disc tube reverse osmosis (dt-ro) technical finesse percolate.
Referring to Fig. 1, the equipment of the utility model disc tube reverse osmosis (dt-ro) technical finesse percolate, comprise main pipe line 7, sand-bed filter 1, core formula strainer 2, main pump 3, disc tube reverse osmosis (dt-ro) film column assembly 4, degas system 5 and add acid system 6, wherein main pump 3 is a high-pressure pump, the quantity of core formula strainer 2 is two, is connected in parallel on the main pipe line 7.The core formula strainer 2 and the main pump 3 of sand-bed filter 1, two parallel connections are serially connected on the main pipe line 7 successively, wherein are equipped with valve on the pipeline of each core formula strainer 2 front and back end.Add acid system 6 by pipe connection on the main pipe line 7 between sand-bed filter 1 and the core formula strainer 2, disc tube reverse osmosis (dt-ro) film column assembly 4 comprises that several are connected to disc tube reverse osmosis (dt-ro) film pole unit 9 on the main pipe line 7 after the main pump 3 in turn by pipeline, each disc tube reverse osmosis (dt-ro) film pole unit 9 comprises a fluid inlet and two liquid outlets, the fluid inlet of each disc tube reverse osmosis (dt-ro) film pole unit 9 links to each other with topping-up pump 8 by pipeline, topping-up pump 8 links to each other with main pipe line 7 by pipeline, one of them liquid outlet of each disc tube reverse osmosis (dt-ro) film pole unit 9 links to each other with the main pipe line 7 that is positioned at after these disc tube reverse osmosis (dt-ro) film pole unit 9 fluid inlets by pipeline, and another liquid outlet links to each other with degas system 5 by pipeline.Be equipped with valve on the main pipe line 7 after the disc tube reverse osmosis (dt-ro) film column assembly 4 and on the pipeline after the degas system 5.
The equipment of this disc tube reverse osmosis (dt-ro) technical finesse percolate also comprises PLC Controlling System (not shown), this PLC Controlling System by lead respectively with main pump 3, disc tube reverse osmosis (dt-ro) film column assembly 4, degas system 5 with add acid system 6 and link to each other.
During entire equipment work, pending percolate is by main pipe line 7 sand-bed filter 1 of flowing through, remove particle diameter greater than 50 microns suspended substance, percolate is regulated pH value to 6~6.5 by adding acid system 6 afterwards, enter two core formula strainers 2 in parallel then respectively, remove particle diameter greater than 10 microns suspended substance, enter disc tube reverse osmosis (dt-ro) film column assembly 4 by high-pressure pump 3 again, the water purification after the separation is removed CO by degas system 5
2, H
2But qualified discharge or reuse behind the S gas, concentrated solution can be transported to the garbage loading embeading district and recharge processing.Total system is by the control of PLC system.Below this a few part system is described in detail:
(1) sand-bed filter: effect is to remove particle diameter greater than 50 microns suspended substance, and sand-bed filter 1 carries out back flushing according to Inlet and outlet water pressure reduction, and the waste water after the flushing is got back to the leachate equalization basin outside the system.Percolate enters sand-bed filter through the bottom water inlet pipe, and sand-bed filter inside is provided with three layers of grain through different sand filter blankets.The sand-bed filter of sand filtration system and accessory pump are the outsourcing product, and actual engineering can be carried out the design selection buying according to concrete water yield situation.
(2) add acid system: according to the pH value of pH value sensor detecting percolate, be presented on the control interface, regulate the pH value between 6~6.5.The reason of regulating the pH value is because sour environment helps prolonging the diaphragm-operated life-span.Acid jar generally is placed in the semi-underground cement hole, when preventing the leakage of acid to the infringement of surrounding enviroment.The acid pump is arranged on the next door of acid jar, and sour pump is controlled the start and stop and the flow size of sour pump by the PLC Controlling System.Acid jar and sour pump are the outsourcing standardized product.
(3) core formula strainer: core formula Filter Precision is 10 microns of nominals, and filter core system prompt when pressure reduction reaches 0.2~0.25MPa is changed.When filter core need be changed, controlling board will be reported to the police.Core formula strainer is the outsourcing standardized product.
(4) disc tube reverse osmosis (dt-ro) film column assembly: disc tube reverse osmosis (dt-ro) film column assembly utilizes the principle of reverse osmosis technology, make the water molecules in the penetrating fluid see through reverse osmosis membrane by pressure, most pollution substances are comprised the small molecules solute, hold back greater than molecule and the ion of 1nm as ammonia nitrogen etc., thereby reach the purpose that purifies percolate, guarantee that the water outlet of entire treatment equipment is up to standard.For guaranteeing the runtime system internal pressure, topping-up pump need be set.
(5) degas system: in the water purification after disc tube reverse osmosis (dt-ro) film column assembly separates because a small amount of CO is arranged
2, H
2S exists, and makes water purifying pH value be acid, does not reach emission request.Therefore remove CO through degas system
2, H
2S makes water purifying pH value between 6~9.Degas system is made of several parts such as packing tower, tank, gas blowers, and to dirty, the stripping air up blows through packing tower clear water by the top water-in.Water purification flows into the aqua storage tank discharge after fully aqueous vapor is separated.
(6) PLC Controlling System: the PLC Controlling System adopts " TSX-Micro " of unit Telemecanique company.Sequence of control is stored on " EEPROM " chip.Behind opening device, treater is loader from chip automatically, enters random access memory then.By a kind of programmer, be connected to the serial line interface of processor unit, can change program.Functions such as the fault alarm of simultaneity factor, auto stop, cleaning shutdown, storing data automatically have also been write into sequence of control.
By equipment overview screen, system operators can be seen the situation that is provided with of pump, valve and instrument in the system.When certain equipment unit on screen of system operators selection, a new screen can be opened thereupon, shows the details of this equipment.Equipment overview screen also has touch/click on area, and system operators can be by touching or clicking these zones and understand further information.Equipment overview screen also has touch/click on area, and operator can be by touching or clicking these zones and understand further information.