CN114230008A - Sewage treatment system from heat supply - Google Patents
Sewage treatment system from heat supply Download PDFInfo
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- CN114230008A CN114230008A CN202111547363.3A CN202111547363A CN114230008A CN 114230008 A CN114230008 A CN 114230008A CN 202111547363 A CN202111547363 A CN 202111547363A CN 114230008 A CN114230008 A CN 114230008A
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- 239000010865 sewage Substances 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 179
- 239000012528 membrane Substances 0.000 claims abstract description 46
- 238000004140 cleaning Methods 0.000 claims abstract description 41
- 238000001035 drying Methods 0.000 claims abstract description 22
- 239000010802 sludge Substances 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000004065 wastewater treatment Methods 0.000 claims 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- 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
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/10—Temperature conditions for biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a self-heating sewage treatment system, which comprises an AO unit, a hot water tank, a membrane cleaning unit, a sludge drying unit, an anaerobic unit, and one or more of a first heat exchange unit, a second heat exchange unit, a third heat exchange unit and a fourth heat exchange unit; wherein the first heat exchange unit is located between the AO unit and the hot water tank for exchanging heat generated by the AO unit into the hot water tank; the second heat exchange unit is positioned between the hot water tank and the membrane cleaning unit and is used for exchanging heat in the hot water tank to the membrane cleaning unit; the third heat exchange unit is positioned between the hot water tank and the sludge drying unit and is used for exchanging heat in the hot water tank to the sludge drying unit; the fourth heat exchange unit is positioned between the hot water tank and the anaerobic unit and used for exchanging heat in the hot water tank to the anaerobic unit. The invention can realize the comprehensive utilization of heat energy and reduce the overall energy consumption of the system.
Description
Technical Field
The invention mainly relates to the technical field of sewage treatment, in particular to a self-heating sewage treatment system.
Background
The domestic garbage leachate system mainly adopts the process of anaerobic treatment, two-stage AO, ultrafiltration and advanced membrane treatment, wherein the two-stage AO (anaerobic-aerobic process) is a main pollutant removal stage, and organic matters and ammonia nitrogen in water are removed mainly by utilizing the action of aeration and biodegradation. Because of the actions of biological reaction, aeration bringing, mechanical friction of pumps and the like, a large amount of heat energy is generated in the stage, and in order to ensure the temperature suitability of a biochemical system, a semi-open cooling system is generally adopted to cool a biochemical pool, so that higher power consumption and energy waste are generated. In the system, heat energy is required to be provided for water evaporation in a sludge deep dehydration section; the heat energy is required to be provided in the membrane cleaning part to raise the cleaning liquid to 38-40 ℃, and the reactor is required to be irregularly heated in winter during anaerobic treatment.
At present, the heat management is still in a decentralized processing mode, namely, the cooling part is mainly a cooling tower, and the heat-requiring part is supplemented by electricity or steam, so that the heat energy in the system is not recycled, and high electricity consumption and energy waste are generated.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the problems in the prior art, the invention provides a self-heating sewage treatment system which realizes the comprehensive utilization of heat energy and reduces the overall energy consumption of the system.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a sewage treatment system with self-heating comprises an AO unit, a hot water tank, a membrane cleaning unit, a sludge drying unit and an anaerobic unit, and is characterized by further comprising one or more of a first heat exchange unit, a second heat exchange unit, a third heat exchange unit and a fourth heat exchange unit; wherein the first heat exchange unit is located between the AO unit and the hot water tank for exchanging heat generated by the AO unit into the hot water tank; the second heat exchange unit is positioned between the hot water tank and the membrane cleaning unit and is used for exchanging heat in the hot water tank to the membrane cleaning unit; the third heat exchange unit is positioned between the hot water tank and the sludge drying unit and is used for exchanging heat in the hot water tank to the sludge drying unit; the fourth heat exchange unit is positioned between the hot water tank and the anaerobic unit and used for exchanging heat of the hot water tank to the anaerobic unit.
Preferably, the first heat exchange unit comprises a heat exchanger A, a heat exchanger B, a jet pump, a heat pump compressor 1#, a throttle expansion valve and a circulating water pump 1 #; a hot side inlet of the heat exchanger A is connected with the AO unit through a jet pump, and a hot side outlet of the heat exchanger A is connected with the AO unit; the hot side inlet of the heat exchanger B is connected with the outlet of the heat pump compressor 1#, the hot side outlet is connected with the cold side inlet of the heat exchanger A through the throttle expansion valve 1#, the cold side inlet of the heat exchanger B is connected with the circulating water pump 1#, and the cold side outlet is connected with the return port 1# of the hot water tank.
Preferably, the heat exchanger A and the heat exchanger B are plate heat exchangers or shell and tube heat exchangers.
Preferably, the second heat exchange unit comprises a circulating water pump 2#, an inlet of the circulating water pump 2# is connected with a water outlet of the membrane cleaning unit, an outlet of the circulating water pump 2# is connected with a backflow port 2# of the hot water tank, and a water outlet of the hot water tank is connected with a water inlet of the membrane cleaning unit.
Preferably, membrane cleaning unit includes that membrane washs water tank and a plurality of membrane unit and washs the water tank, hot water tank and membrane wash the water tank and link to each other, membrane washing water tank links to each other with each membrane unit washing water tank respectively.
Preferably, the third heat exchange unit comprises a circulation preheater and a circulation water pump 5#, and a water outlet of the hot water tank is connected with a return port 4# of the hot water tank sequentially through the circulation preheater and the circulation water pump 5 #.
Preferably, the sludge drying unit comprises a low-temperature dryer, a condenser and a circulating air pipe, and the circulating air pipe is connected with the circulating preheater after sequentially passing through the circulating preheater, the low-temperature dryer and the condenser.
Preferably, a fifth heat exchange unit is further disposed between the freezer and the user hot water supply tank, and is used for exchanging heat of the condensation unit to the user hot water supply tank.
Preferably, the fifth heat exchange unit comprises a heat exchanger C, a heat exchanger D, a heat pump compressor 2# and a throttle expansion valve 2#, the heat exchanger C and the condenser form a loop, the heat exchanger C, the heat pump compressor 2#, the heat exchanger D and the throttle expansion valve 2# are sequentially connected in series to form a loop, and a loop is formed between the heat exchanger D and the user water supply tank.
Preferably, the fourth heat exchange unit comprises a circulating water pump 3#, a mud-water heat exchanger and a circulating water pump 4#, wherein the hot side of the mud-water heat exchanger is connected with the hot water tank through the circulating water pump 3#, and the cold side of the mud-water heat exchanger is connected with the anaerobic unit through the circulating water pump 4 #.
Compared with the prior art, the invention has the advantages that:
the sewage treatment system realizes the recovery and comprehensive utilization of two-stage AO heat production by utilizing a heat pump technology, integrates the original dispersed heat supply and heat dissipation into an organic supply and demand relationship, realizes the heat supply of hot end required by a plant area, solves the problem of low membrane cleaning water temperature (mainly in low-temperature seasons) when most membrane cleaning CIP devices do not have the automatic heating function, and can also carry out secondary recovery and secondary heating heat supply on dried waste heat. The invention realizes the energy transfer of the heat dissipation end of the system to the heat-requiring end of the system by utilizing the low-temperature heat pump device and the concept of concentrated collection and dispersed utilization of heat energy, and can reduce the overall energy consumption of the system.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a sewage treatment system of the present invention.
Detailed Description
The invention is further described below with reference to the figures and the specific embodiments of the description.
As shown in fig. 1, the self-heating sewage treatment system according to the embodiment of the present invention includes an AO unit, a hot water tank, a membrane cleaning unit, a sludge drying unit, an anaerobic unit, and one or more of a first heat exchange unit, a second heat exchange unit, a third heat exchange unit, and a fourth heat exchange unit; wherein the first heat exchange unit is located between the AO unit and the hot water tank for exchanging heat generated by the AO unit into the hot water tank; the second heat exchange unit is positioned between the hot water tank and the membrane cleaning unit and is used for exchanging heat in the hot water tank to the membrane cleaning unit; the third heat exchange unit is positioned between the hot water tank and the sludge drying unit and is used for exchanging heat in the hot water tank to the sludge drying unit; the fourth heat exchange unit is positioned between the hot water tank and the anaerobic unit and used for exchanging heat of the hot water tank to the anaerobic unit. The invention realizes the energy transfer of the heat dissipation end of the system to the heat-requiring end of the system by utilizing the low-temperature heat pump device and the concept of concentrated collection and dispersed utilization of heat energy, and can reduce the overall energy consumption of the system.
In a specific embodiment, the AO unit comprises a biochemical pool, the first heat exchange unit comprises a heat exchanger a, a heat exchanger B, a jet pump, a heat pump compressor 1#, a throttle expansion valve and a circulating water pump 1 #; a hot side inlet of the heat exchanger A is connected with the biochemical pool through a jet pump, and a hot side outlet is connected with the biochemical pool; the hot side inlet of the heat exchanger B is connected with the outlet of the heat pump compressor 1#, the hot side outlet is connected with the cold side inlet of the heat exchanger A through the throttle expansion valve 1#, the cold side inlet of the heat exchanger B is connected with the circulating water pump 1#, and the cold side outlet is connected with the return port 1# of the hot water tank. Wherein the medium on the side of the jet pump is a biochemical pool mud-water mixture. Wherein
In one embodiment, the hot water tank is filled with water from a system water replenishing valve, and when the liquid level detected by the liquid level meter is lower than a set value, the system water replenishing valve is opened and stops until the liquid level of the tank reaches the set value. When the water tank works normally, the circulating water pump 1# continuously operates and exchanges heat with the heat exchanger B to improve or keep the temperature of the water tank.
In one embodiment, the membrane cleaning unit comprises a membrane cleaning water tank, and the second heat exchange unit comprises a circulating water pump 2#, a circulating pipe, a cooling water replenishing pipe, a water outlet pipe, a temperature detector and a liquid level detector. And the circulating water pump 2# is a circulating pipeline for establishing a membrane cleaning water tank and a hot water tank. And when the temperature of the membrane cleaning water tank is lower than a set value, starting a circulating water pump 2# for increasing the water temperature until the temperature is the first set temperature. When the temperature of the membrane cleaning water tank is higher than a second set value, the cooling water replenishing pipe replenishes water to the membrane cleaning water tank so as to reduce the temperature of the water tank (mainly used during starting). The water outlet pipe of the membrane cleaning water tank is respectively connected with the membrane cleaning water tanks of the membrane units. When receiving the membrane cleaning signal, the outlet pipe valve is opened, and water is conveyed to the corresponding membrane unit cleaning water tank.
In one embodiment, the anaerobic unit comprises an anaerobic reactor, and the fourth heat exchange unit comprises a circulating water pump 3#, a mud-water heat exchanger and a circulating water pump 4 #. The mud-water heat exchanger is one of a plate type, a tube type or a sleeve type and is used for heating the anaerobic reactor; the hot side of the muddy water heat exchanger is connected with the hot water tank through a circulating water pump 3#, and the cold side is connected with the anaerobic reactor through a circulating water pump 4#, and is connected with the flushing water pump. A temperature detector is arranged in the anaerobic system, and when the detected temperature is lower than the set temperature, the circulating water pump 3# and the circulating water pump 4# are started; when the temperature detected by the temperature detector is higher than the set temperature, the circulating water pump 3# and the circulating water pump 4# are stopped, then the flushing water pump is started to flush the cold side, the water source is from the hot water tank, and the muddy water mixture generated by flushing enters the anaerobic reactor.
In one embodiment, the sludge drying unit comprises a circulation preheater (air-cooled heat exchanger), a low-temperature dryer, a condenser and a circulation air pipe. The air-cooled heat exchanger is of a coil pipe type or a conventional condensing type, is used for low-temperature drying of sludge, and is connected with a hot water tank through a circulating water pump 5#, and hot water flows through the pipe. When sludge drying is started, the circulating water pump 5# is started, then the drying circulating fan 1# is started, air passes through the outer side of the coil pipe, heat energy of water is transferred to air, then the air is blown into the drying machine, hot air is directly contacted with sludge under negative pressure, moisture in the sludge is evaporated, and the hot air is changed into low-temperature high-humidity air. The low-temperature high-humidity air is sucked by the drying circulating fan 2#, water vapor is condensed into liquid water due to temperature reduction after passing through the surface of the condenser, the water is continuously circulated in the condenser pipe, and the circulating water is connected with the heat exchanger C (hot side) and used for keeping or reducing the circulating water temperature.
In addition, a fifth heat exchange unit is arranged between the condenser and the user hot water supply tank and used for exchanging heat of the condensing unit to the user hot water supply tank. Specifically, the fifth heat exchange unit comprises a heat exchanger C, a heat exchanger D, a heat pump compressor 2# and a throttle expansion valve 2#, the heat exchanger C and a condenser form a loop, the heat exchanger C, the heat pump compressor 2#, the heat exchanger D and the throttle expansion valve 2# are sequentially connected in series to form a loop, and a loop is formed between the heat exchanger D and a user hot water supply tank. Wherein there is the air medium (similar heat pump evaporimeter) in the heat exchanger C cold side, sets up heat exchanger D, and the hot side import links to each other with heat pump compressor 2# export, and the hot side export links to each other with heat exchanger C cold side import. The cold side of the heat exchanger D is connected with a circulating water pump, and the 6# circulating water pump is connected with the 2# hot water tank and a heat supply user.
The sewage treatment system of the invention utilizes the heat pump technology to realize the recovery and comprehensive utilization of the heat produced by the two-stage AO, integrates the original dispersed heat supply and heat dissipation into an organic supply and demand relationship, realizes the heat supply of the hot end required by a plant, solves the problem of low membrane cleaning water temperature (mainly in low-temperature seasons) when most membrane cleaning CIP devices do not have the automatic heating function, and can also carry out secondary recovery and secondary heating heat supply on the dried waste heat.
Two specific examples of the actual application of the above-described sewage treatment system are provided below:
in one embodiment, in a landfill leachate treatment plant, a two-stage AO heat source is utilized to exchange heat for a 35 ℃ slurry-water mixture, and a high-temperature water source heat pump and a plate heat exchanger are adopted to prepare 65-70 ℃ hot water. Wherein the membrane unit cleaning water with the temperature of 38 ℃ is obtained by water distribution; 1800m is maintained by a mud-water heat exchanger3The temperature of the anaerobic reactor is stabilized at 34-36 ℃, and the return water temperature is 60-63 ℃; obtaining hot air with the temperature of 50-58 ℃ for sludge drying through a disc heat exchanger; the heat pump is used for supplying heat to a maintenance workshop with the area of about 50 square meters by returning drying heat energy.
In another embodiment, in a certain incineration leachate treatment plant, a two-stage AO heat source is utilized to exchange heat for 33 ℃ muddy water mixture, and a high-temperature water source heat pump and a plate heat exchanger are adopted to prepare 60-65 ℃ hot water. Wherein, the water for cleaning the film machine set at 38 ℃ is obtained by water distribution, and the heat source water is directly used for supplying heat in winter to an office area with the area of about 220 square meters and supplying hot water to a laboratory synchronously.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (10)
1. A sewage treatment system with self-heating comprises an AO unit, a hot water tank, a membrane cleaning unit, a sludge drying unit and an anaerobic unit, and is characterized by further comprising one or more of a first heat exchange unit, a second heat exchange unit, a third heat exchange unit and a fourth heat exchange unit; wherein the first heat exchange unit is located between the AO unit and the hot water tank for exchanging heat generated by the AO unit into the hot water tank; the second heat exchange unit is positioned between the hot water tank and the membrane cleaning unit and is used for exchanging heat in the hot water tank to the membrane cleaning unit; the third heat exchange unit is positioned between the hot water tank and the sludge drying unit and is used for exchanging heat in the hot water tank to the sludge drying unit; the fourth heat exchange unit is positioned between the hot water tank and the anaerobic unit and used for exchanging heat in the hot water tank to the anaerobic unit.
2. The self-powered wastewater treatment system according to claim 1, wherein the first heat exchange unit comprises a heat exchanger a, a heat exchanger B, a jet pump, a heat pump compressor # 1, a throttle expansion valve, and a circulating water pump # 1; a hot side inlet of the heat exchanger A is connected with the AO unit through a jet pump, and a hot side outlet of the heat exchanger A is connected with the AO unit; the hot side inlet of the heat exchanger B is connected with the outlet of the heat pump compressor 1#, the hot side outlet is connected with the cold side inlet of the heat exchanger A through the throttle expansion valve 1#, the cold side inlet of the heat exchanger B is connected with the circulating water pump 1#, and the cold side outlet is connected with the return port 1# of the hot water tank.
3. The self-powered wastewater treatment system according to claim 2, wherein the heat exchanger A and the heat exchanger B are plate heat exchangers or tube heat exchangers.
4. The self-heating sewage treatment system according to claim 1, 2 or 3, wherein the second heat exchange unit comprises a circulating water pump 2#, an inlet of the circulating water pump 2# is connected with an outlet of the membrane cleaning unit, an outlet of the circulating water pump 2# is connected with a return port 2# of a hot water tank, and an outlet of the hot water tank is connected with an inlet of the membrane cleaning unit.
5. The self-heating sewage treatment system according to claim 4, wherein the membrane cleaning unit comprises a membrane cleaning water tank and a plurality of membrane unit cleaning water tanks, the hot water tank is connected with the membrane cleaning water tank, and the membrane cleaning water tanks are respectively connected with the membrane unit cleaning water tanks.
6. The self-heating sewage treatment system according to claim 1, 2 or 3, wherein the third heat exchange unit comprises a circulation preheater and a circulation water pump 5#, and the water outlet of the hot water tank is connected with the return port 4# of the hot water tank sequentially through the circulation preheater and the circulation water pump 5 #.
7. The self-heating sewage treatment system according to claim 6, wherein the sludge drying unit comprises a low-temperature dryer, a condenser and a circulating air pipe, and the circulating air pipe passes through the circulating preheater, the low-temperature dryer and the condenser in sequence and then is connected with the circulating preheater.
8. The self-heating sewage treatment system according to claim 7 wherein a fifth heat exchange unit is further provided between the chiller and the user-heated water tank for exchanging heat of the condensing unit to the user-heated water tank.
9. The self-heating sewage treatment system according to claim 8, wherein the fifth heat exchange unit comprises a heat exchanger C, a heat exchanger D, a heat pump compressor 2# and a throttle expansion valve 2#, the heat exchanger C and a condenser form a loop, the heat exchanger C, the heat pump compressor 2#, the heat exchanger D and the throttle expansion valve 2# are sequentially connected in series to form a loop, and the loop is formed between the heat exchanger D and a user hot water supply tank.
10. The self-heating sewage treatment system according to claim 1, 2 or 3, wherein the fourth heat exchange unit comprises a circulating water pump 3#, a mud-water heat exchanger and a circulating water pump 4#, the hot side of the mud-water heat exchanger is connected with the hot water tank through the circulating water pump 3#, and the cold side of the mud-water heat exchanger is connected with the anaerobic unit through the circulating water pump 4 #.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111547363.3A CN114230008B (en) | 2021-12-16 | 2021-12-16 | Self-heating sewage treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111547363.3A CN114230008B (en) | 2021-12-16 | 2021-12-16 | Self-heating sewage treatment system |
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| CN114230008A true CN114230008A (en) | 2022-03-25 |
| CN114230008B CN114230008B (en) | 2023-12-05 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2945035A1 (en) * | 1979-11-08 | 1981-05-27 | Tecon Technische Beratungs-Gesellschaft mbH, 7140 Ludwigsburg | Energy saving in biological sewage treatment - by heat pumps and heat exchangers |
| CN102059158A (en) * | 2009-11-17 | 2011-05-18 | 林欣栋 | Regenerative material regeneration system |
| CN102849912A (en) * | 2012-09-27 | 2013-01-02 | 扬州澄露环境工程有限公司 | Sludge hydrolysis acidification system |
| CN105650713A (en) * | 2016-03-21 | 2016-06-08 | 河北宏龙环保科技有限公司 | Sewage treatment and treated sewage heat energy utilization system |
| CN206955756U (en) * | 2017-07-20 | 2018-02-02 | 光大环境科技（中国）有限公司 | A kind of equipment handled percolate |
| CN209242869U (en) * | 2018-11-30 | 2019-08-13 | 荣成市固废综合处理与应用产业园有限公司 | A kind of winter percolate preheating system |
| CN112125494A (en) * | 2020-10-12 | 2020-12-25 | 福建中盟环保科技有限公司 | Device for drying sludge by recovering heat energy generated by biological treatment of industrial wastewater |
-
2021
- 2021-12-16 CN CN202111547363.3A patent/CN114230008B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2945035A1 (en) * | 1979-11-08 | 1981-05-27 | Tecon Technische Beratungs-Gesellschaft mbH, 7140 Ludwigsburg | Energy saving in biological sewage treatment - by heat pumps and heat exchangers |
| CN102059158A (en) * | 2009-11-17 | 2011-05-18 | 林欣栋 | Regenerative material regeneration system |
| CN102849912A (en) * | 2012-09-27 | 2013-01-02 | 扬州澄露环境工程有限公司 | Sludge hydrolysis acidification system |
| CN105650713A (en) * | 2016-03-21 | 2016-06-08 | 河北宏龙环保科技有限公司 | Sewage treatment and treated sewage heat energy utilization system |
| CN206955756U (en) * | 2017-07-20 | 2018-02-02 | 光大环境科技（中国）有限公司 | A kind of equipment handled percolate |
| CN209242869U (en) * | 2018-11-30 | 2019-08-13 | 荣成市固废综合处理与应用产业园有限公司 | A kind of winter percolate preheating system |
| CN112125494A (en) * | 2020-10-12 | 2020-12-25 | 福建中盟环保科技有限公司 | Device for drying sludge by recovering heat energy generated by biological treatment of industrial wastewater |
Non-Patent Citations (1)
| Title |
|---|
| W•F•欧文: "《废水处理节能》", 化学工业出版社, pages: 191 * |
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| CN114230008B (en) | 2023-12-05 |
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