WO2020222660A1 - Recycling system for dry waste from stp - Google Patents
Recycling system for dry waste from stp Download PDFInfo
- Publication number
- WO2020222660A1 WO2020222660A1 PCT/OM2019/050009 OM2019050009W WO2020222660A1 WO 2020222660 A1 WO2020222660 A1 WO 2020222660A1 OM 2019050009 W OM2019050009 W OM 2019050009W WO 2020222660 A1 WO2020222660 A1 WO 2020222660A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- unit
- gas
- dry waste
- plant
- cement
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
- C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
- C12P5/023—Methane
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Definitions
- the Recycling system for dry waste from Sewage Treatment Plant can operate in Omani operation conditions.
- the proposed system contained but not limited of the following:
- STP dry wastes form sewage treatment plant
- the Recycling system for dry waste from Sewage Treatment Plant can operate in GCC operation conditions.
- the system will work in the principals of 100 % recycling from dry wastes (from STPs) to useful products with value e.g. biogas and cement, by combining, anaerobic degasification (AD) process and cooking with lime stone.
- AD anaerobic degasification
- the new invention gives a comprehensive solution and will fix the issues mentioned in the old art.
- the new invention will offer:
- the Recycling system for dry waste from Sewage Treatment Plant can operate in Omani operation conditions.
- the system will work in series as following:
- the dray waste will be delivered from the STP to the bio-gas plant.
- reaction time 72 hours /cycle (reaction cycle is from the time the reactor fed until the
- the methane (which is the first product from the reactor) will go after the treatment unit to biogas storage unit then to CHP electricity generators to generate electricity which is sold to end user.
- the cement plant will have a feeding system to feed the digested slurry to the clinker where the slurry will be cooked with the limestone in 1400C 5 .
- This process will reduce the amount of gas needed to heat up the clinker which will introduce energy saving to the cement plant.
- cooking the slurry with the limestone will reduce the amount of NOX's gases produced from normal cement production.
- the proposed system will integrate wet scrubbers into the cement production system to remove any dust from exhaust gases.
- the proposed system contained but not limited of the following: * Feeding discharging system of the dry waste (Digestate and loading conveyor)
- This conveyor system will be customized to feed the reactor and to carry-out the Digestate from the reactor.
- the conveyors will is automated to operate in harmony with the reactor feeding and discharging gates. Also, conveyors are fully controlled by the main control panel.
- reactors are mainly off shelf with some modifications to suit the operation conditions in Oman and to integrate with the automation feeding and discharging system as well as the parameters controls (i.e temperature, pressure, humidity controls, etc).
- This system is to connect the system together and built based on the standards and specifications given in Oman
- This modified mechanical shaping units to shape the digested slurry to be suitable for the feeding system of the cement plant.
- This proposed system will 100% recycle the dry waste and transfer it to energy and other products which gives a sustainable and renewable source of energy. Also, it will address the issues with old arts.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Genetics & Genomics (AREA)
- Zoology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Sustainable Development (AREA)
- Biomedical Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Treatment Of Sludge (AREA)
- Treating Waste Gases (AREA)
Abstract
The Recycling system for dry waste from Sewage Treatment Plant (STP) can operate in Omani operation conditions. The assumed feed (intake is around 100 tons/day and it may go higher depends on the demand. The proposed system contained but not limited of the following: 1) Feeding and discharging system of the dry waste (Digestate and loading conveyor) 2) Biological reactors with parameters monitoring and controls electronic panel 3) Heat Exchanger 4) CHP unit 5) Cooling trap 6) Bio-Gas storage unit 7) Piping system 8) Fume filters 9) Chiller) s) 10) Pumps and compressors 11) Water tanks 12) Mechanical compressed unit 13) Gas treatment Unit 14) Feeding system to cement clinker 15) Wet scrubbers This proposed system will 100% recycle the dry waste and transfer it to energy and other products which gives a sustainable and renewable source of energy.
Description
Description
RECYCLING SYSTEM FOR DRY WASTE FROM STP
Technical Field
The Recycling system for dry waste from Sewage Treatment Plant (STP) can operate in Omani operation conditions. The proposed system contained but not limited of the following:
- Feeding discharging system of the dry waste (Digestate and loading
conveyor)
- Biological reactors with parameters monitoring and controls electronic panel
- Heat Exchanger
- CHP unit
- Cooling trap
- Bio-Gas storage unit
- Piping system
- Fume filters
- Chiller(s)
- Pumps and compressors
- Water tanks
- Mechanical compressed unit
- Gas treatment Unit
- Feeding system to cement clinker
- wet scrubbers
This proposed system will 100% recycle the dry waste and transfer it to energy and other products which gives a sustainable and renewable source of energy.
[0001 ]
Background Art
The current methods of dealing with the dry wastes form sewage treatment plant (STP) are:
1) Taking to the Land filled
2) Burning
3) Compost to Fertilizer
4) In some cases un treated disposal
5) Used Bio gas production
Summary of Invention
The Recycling system for dry waste from Sewage Treatment Plant (STP) can operate in GCC operation conditions. The system will work in the principals of 100 % recycling from dry wastes (from STPs) to useful products with value e.g. biogas and cement, by combining, anaerobic degasification (AD) process and cooking with lime stone.
Technical Problem
The problems with published methods of dealing with the dry wastes form sewage treatment plant (STP) are:
Solution to Problem
The new invention gives a comprehensive solution and will fix the issues mentioned in the old art. The new invention will offer:
- 100% recycling means no lift over will go to the land filled
- Will address the issue with the heavy metals and high level of antibiotics
- Will Address The issue of Biological hazards (i.e. parasite, scares ,..etc)
- Will generate an economic value by producing energy and saving energy consumption.
- Will prevent some of the environmental issues (i.e. underground pollution)
Detailed Description
The Recycling system for dry waste from Sewage Treatment Plant (STP) can operate in Omani operation conditions. The system will work in series as following:
- The dray waste will be delivered from the STP to the bio-gas plant.
- In the bio-gas plant the dray waste will be fed to biological reactors where Methane gas (CPU) will be produced from the reactors. The reaction time is 72 hours /cycle (reaction cycle is from the time the reactor fed until the
discharge).
- From the reactor will expect two types of products : 1) methane gas which will go to treatment unit for purification and upgrade and 2) digested slurry which will go to mechanical shaping unit.
- The methane (which is the first product from the reactor) will go after the treatment unit to biogas storage unit then to CHP electricity generators to generate electricity which is sold to end user.
- The digested slurry (the second product from the reactors) will be
transported to a cement plant after coming out of the mechanical shaper.
- The cement plant will have a feeding system to feed the digested slurry to the clinker where the slurry will be cooked with the limestone in 1400C5. This process will reduce the amount of gas needed to heat up the clinker which will introduce energy saving to the cement plant. Also cooking the slurry with the limestone will reduce the amount of NOX's gases produced from normal cement production. Also, in the cement plant the proposed system will integrate wet scrubbers into the cement production system to remove any dust from exhaust gases.
The proposed system contained but not limited of the following:
* Feeding discharging system of the dry waste (Digestate and loading conveyor)
This conveyor system will be customized to feed the reactor and to carry-out the Digestate from the reactor. The conveyors will is automated to operate in harmony with the reactor feeding and discharging gates. Also, conveyors are fully controlled by the main control panel.
* Biological reactors with parameters monitoring and controls electronic panel
These reactors are mainly off shelf with some modifications to suit the operation conditions in Oman and to integrate with the automation feeding and discharging system as well as the parameters controls (i.e temperature, pressure, humidity controls, etc).
* Heat Exchanger
This a standard heat exchanges for heat control of the reaction
* CHP unit
Standard CHP generators for electricity production of 8.5 Mw/day
* Cooling trap Standard cooling trap
* Bio-Gas storage unit
Standard spherical shape bio-gas storage tanks with attached valves and control panel connection.
* Piping system
This system is to connect the system together and built based on the standards and specifications given in Oman
* Fume filters.
Standard filters to prevent any harmful fumes to go to the atmosphere
* Chiller(s)
Standard chillers for cooling purposes of the system in case of overheating
* Pumps and compressors
To provide the mechanical driving forces for the material movement
* Water tanks
For water storage for the usage for humidity control
* Mechanical compressed unit
This modified mechanical shaping units to shape the digested slurry to be suitable for the feeding system of the cement plant.
* Gas treatment Unit
This is a standard treatment unit to purify and upgrade the methane gas to be used in the CHP generators and to remove any harmful gases.
* Feeding system to cement clinker
Standard feeding system for cement plant
* Wet scrubbers
Is a standard wet scrubber to remove any dust from the exhaust gas from the cement clinker
This proposed system will 100% recycle the dry waste and transfer it to energy and other products which gives a sustainable and renewable source of energy. Also, it will address the issues with old arts.
Description of Drawings
Fig.1
Overview of the process flow
Fig.2
1 &3 -Feeding discharging system of the dry waste (Digestate and loading conveyor) 2-Biological reactors with parameters monitoring and controls electronic panel
9- To present Heat Exchanger
6- Cooling trap
5- Bio-Gas storage unit
4- Piping system
7- Mechanical compressed unit
5- Gas treatment Unit
10- Feeding system to cement clinker
11- Wet scrubbers
Claims
[Claim 1] Recycling system for dry waste from Sewage Treatment Plant
(STP) can operate in GCC operation conditions. The proposed system comprises the following:
1 ) Feeding and discharging system of the dry waste (Digestate and loading conveyor)
2) Biological reactors with parameters monitoring and controls electronic panel
3) Heat Exchanger
4) CHP unit
5) Cooling trap
6) Bio-Gas storage unit
7) Piping system
8) Fume filters
9) Chiller(s)
10) Pumps and compressors
1 1 ) Water tanks
12) Mechanical compressed unit
13) Gas treatment Unit
14) Feeding system to cement clinker
15) Wet scrubbers
[Claim 2] Recycling system according to claim 1 , the dry waste will be delivered from the STP to the bio-gas plant.
[Claim 3] Dry waste according to claim 2 , as in the bio-gas plant the dray waste will be fed to biological reactors where Methane gas (CH4) will be produced from the reactors. The reaction time is 72 hours /cycle (reaction cycle is from the time the reactor fed until the discharge).
[Claim 4] Recycling system according to claim 1 , the output from the
reactor will be two types of products: a. Methane gas which will go to treatment unit for purification and upgrade and
b. Digested slurry which will go to mechanical shaping unit.
[Claim 5] Recycling system according to claim 1 , the methane (which is the first product from the reactor) will go after the treatment unit to biogas storage unit then to CHP electricity generators to generate electricity which is sold to end user.
[Claim 6] Recycling system according to claim 1 , the digested slurry (the second product from the reactors) will be transported to a cement plant after coming out of the mechanical shaper.
[Claim 7] The cement plant according to claim 6, will have a feeding
system to feed the digested slurry to the clinker where the slurry will be cooked with the limestone in 1400CS. This process will reduce the amount of gas needed to heat up the clinker which will introduce energy saving to the cement plant. Also cooking the slurry with the limestone will reduce the amount of NOX’s gases produced from normal cement production. Also, in the cement plant the proposed system will integrate wet scrubbers into the cement production system to remove any dust from exhaust gases.
English Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| OMOM/P/2019/000186 | 2019-05-02 | ||
| OM1862019 | 2019-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020222660A1 true WO2020222660A1 (en) | 2020-11-05 |
Family
ID=73029749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/OM2019/050009 Ceased WO2020222660A1 (en) | 2019-05-02 | 2019-08-01 | Recycling system for dry waste from stp |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2020222660A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6299775B1 (en) * | 2000-03-17 | 2001-10-09 | Clint R. Elston | Waste and wastewater treatment and recycling system |
| CN201125192Y (en) * | 2007-11-14 | 2008-10-01 | 朱树祥 | Tall building methane septic sewage disposal system apparatus |
| WO2012103629A1 (en) * | 2011-02-03 | 2012-08-09 | Anaergia Inc. | Treatment of waste products with anaerobic digestion |
| WO2015003273A1 (en) * | 2013-07-11 | 2015-01-15 | Anaergia Inc. | Anaerobic digestion and pyrolysis system |
-
2019
- 2019-08-01 WO PCT/OM2019/050009 patent/WO2020222660A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6299775B1 (en) * | 2000-03-17 | 2001-10-09 | Clint R. Elston | Waste and wastewater treatment and recycling system |
| CN201125192Y (en) * | 2007-11-14 | 2008-10-01 | 朱树祥 | Tall building methane septic sewage disposal system apparatus |
| WO2012103629A1 (en) * | 2011-02-03 | 2012-08-09 | Anaergia Inc. | Treatment of waste products with anaerobic digestion |
| WO2015003273A1 (en) * | 2013-07-11 | 2015-01-15 | Anaergia Inc. | Anaerobic digestion and pyrolysis system |
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