CN102515461A - Sludge treatment system, sewage and sludge treatment system and sewage and sludge treatment method - Google Patents

Sludge treatment system, sewage and sludge treatment system and sewage and sludge treatment method Download PDF

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Publication number
CN102515461A
CN102515461A CN2011104552093A CN201110455209A CN102515461A CN 102515461 A CN102515461 A CN 102515461A CN 2011104552093 A CN2011104552093 A CN 2011104552093A CN 201110455209 A CN201110455209 A CN 201110455209A CN 102515461 A CN102515461 A CN 102515461A
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China
Prior art keywords
mud
sludge
sewage
filtrating
processed
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CN2011104552093A
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CN102515461B (en
Inventor
赵剑锋
兰建伟
王然
苏志峰
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Shenzhen Energy And Environmental Protection Co ltd
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Shenzhen Energy Environmental Protection Co Ltd
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Priority to CN2011104552093A priority Critical patent/CN102515461B/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening

Abstract

The invention relates to a sludge treatment system, a sewage and sludge treatment system and a sewage and sludge treatment method. The sludge treatment system comprises a sludge tank and a dewatering system, wherein the sludge tank is filled with sludge, and the dewatering system is used for dewatering sludge. A sludge thickening device is further disposed between the sludge tank and the dewatering system. Sludge discharged from the sludge tank enters the sludge thickening device for thickening, supernatant in the sludge thickening device is discharged, and thickened sludge enters the dewatering system. The sludge discharged from the sludge tank enters the sludge thickening device for thickening first and then discharged into the dewatering system, so that water content of the sludge can be reduced, and influences on the dewatering system can be reduced. In addition, the sludge treatment system can be used with a sewage pretreatment system to treat sludge from the sewage pretreatment system, filtrate can be reused by the sewage pretreatment system after sludge treatment, and thereby effective cyclic treatment can be realized and environmental hazards can be reduced.

Description

Sludge treating system, sewage and sludge treating system and treatment process
Technical field
The present invention relates to the treatment system and the method for mud, sewage etc., more particularly, relate to a kind of sludge treating system, sewage and sludge treating system and method that can be used for occasions such as garbage burning factory or garbage incinerating power plant.
Background technology
Along with developing rapidly of growth in the living standard, modern city, the pollution problem of domestic refuse is outstanding day by day.Life refuse processing method mainly contains burning, compost, treat mechanically and landfill yard etc.Traditional domestic waste landfill disposal receives increasing restriction; The fundamental principle of, minimizing innoxious and resource utilization according to garbage treatment; Domestic garbage burning electricity generation has become a new direction that solves the domestic waste outlet in recent years, and the construction of garbage burning factory in development in recent years rapidly.Rubbish is being deposited, in the transfer, transportation, stacking process, owing to reasons such as anaerobically fermenting, organism decomposition, rainwater drip washing produce multiple metabolic substd and moisture, is being formed very complicated high concentrated organic wastewater---the rubbish leaching vat of composition.Undressed leaching vat is contaminated soil and surface water not only, and through the groundwater flow polluted source, to people's health and the nonvolatil threat of environment structure.And, the rubbish leaching vat being handled the mud of back generation etc., can pollute equally.
Certainly, the leaching vat that produces except domestic refuse polluted, the sewage that other occasions produce was like mud of producing after power plant's sewage, industrial sewage, the WWT or the like, the health of same affect people's and the pollution of environment.
Present sludge treating system comprises sludge sump, processed system etc.Various mud like the mud of residual night of rubbish leaching vat, pretreatment system for sewage and scum silica frost etc., enter sludge sump, in sludge sump, carry out homogeneous after, be input to the processed system and carry out processed.Mud after the processing exports bucket to and discharges, and filtrating then is drained in the intermediate pool of pretreatment system for sewage, carries out processing such as follow-up evaporation, biochemistry.
Though present sludge treating system can be handled mud and send outside; But still have following defective: the moisture percentage in sewage sludge in the sludge sump constantly changes in the 95%-99% scope; Cause the centrifuge running frequency of processed system constantly to change; Need the personal management, be prone to putty, cause can't normally moving of system.
Summary of the invention
The technical problem that the present invention will solve is, a kind of sludge treating system that can effectively reduce moisture percentage in sewage sludge is provided.
Another technical problem to be solved by this invention is, a kind of sewage and sludge treating system and the method that can effectively dispose of sewage and reduce moisture percentage in sewage sludge is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of sludge treating system, the processed system that comprises the sludge sump that inserts mud and mud carried out processed; Between said sludge sump and processed system, also be provided with mud concentration device; The mud that said sludge sump is discharged gets into said mud concentration device and carries out concentration, and the supernatant of said mud concentration device is discharged, and the mud after concentrating gets into said processed system.
In sludge treating system of the present invention, said mud concentration device comprises the one or more mud concentration tanks that are provided with whipping appts; Each mud concentration tank comprises mud import, sludge outlet, the filtrate outlet that is connected with said processed system and the supernatant outlet of discharging supernatant;
Said mud import is connected with the outlet of said sludge sump, the sludge outlet of processed system, inserts mud.
In sludge treating system of the present invention, said processed system comprises centrifuge, filtrating Buffer Pool, filtrating settling vessel and the centrifugal water tank that connects successively;
The filtrate outlet of said mud concentration tank is connected with the import of said centrifuge;
Mud after the said centrifuge dehydration is discharged, and filtrating gets into the energy dissipating of said filtrating Buffer Pool;
Filtrating after the energy dissipating of said filtrating Buffer Pool gets into said filtrating settling vessel deposition, and the filtrating of post precipitation is expelled to said centrifugal water tank;
Said filtrating Buffer Pool is expelled to said mud concentration tank with the mud of filtrating settling vessel.
In sludge treating system of the present invention, said sludge treating system also comprises the storage pond that is connected with said centrifugal water tank.
The present invention also provides a kind of sewage and sludge treating system; Comprise pretreatment system for sewage and sludge treating system, said pretreatment system for sewage comprises that access sewage carries out the primary treatment device of primary treatment, deposits the intermediate pool of water outlet and output and is connected the clarifying plant between said primary treatment device and the intermediate pool;
Said sludge treating system comprises the sludge sump that inserts mud, mud is carried out the processed system of processed and between said sludge sump and processed system, also is provided with mud concentration device;
Said sludge sump inserts the mud and the scum silica frost of said intermediate pool and clarifying plant; The mud that said sludge sump is discharged gets into said mud concentration device and carries out concentration, and the supernatant of said mud concentration device is discharged, and the mud after concentrating gets into said processed system.
In sewage of the present invention and sludge treating system, said clarifying plant is multistage clarifying plant, to handling from the sewage of said primary treatment device, and is expelled to said intermediate pool.
In sewage of the present invention and sludge treating system, said multistage clarifying plant comprises one-level settler and the secondary settler that is connected in turn between said primary treatment device and the intermediate pool; The said sewage that inserts carries out pre-treatment through said primary treatment device, one-level settler, secondary settler and intermediate pool successively; The mud and the scum silica frost of said one-level settler and secondary settler are expelled to said sludge sump.
In sewage of the present invention and sludge treating system, said multistage clarifying plant also comprises the de-sludging mixing tank that is connected between said one-level settler and the secondary settler; Said de-sludging mixing tank is the yellow soda ash mixing tank;
Said processed system comprises centrifuge, filtrating Buffer Pool, filtrating settling vessel, the centrifugal water tank that connects successively;
The sludge outlet of said mud concentration device is connected with the import of said centrifuge;
Mud after the said centrifuge dehydration is discharged, and filtrating gets into the energy dissipating of said filtrating Buffer Pool;
Filtrating after the energy dissipating of said filtrating Buffer Pool gets into said filtrating settling vessel deposition, and the filtrating of post precipitation is expelled to said centrifugal water tank;
Said filtrating Buffer Pool is expelled to said mud concentration device with the mud of filtrating settling vessel;
Said sludge treating system also comprises the storage pond that is connected with said centrifugal water tank; Said storage pond is connected with said yellow soda ash mixing tank.
The present invention also provides a kind of sewage and method for sludge treatment, may further comprise the steps: sludge treatment step and WWT step; Said sludge treatment step comprises:
A1: insert mud, in sludge sump, mix all amounts;
A2: deliver to mud concentration device through the mud of steps A 1 processing and carry out concentration; Supernatant after the concentration is discharged, and the mud after concentrating gets into said processed system;
A3: said processed system carries out processed to the mud of handling through steps A 2, discharges mud and filtrating respectively.
In sewage of the present invention and method for sludge treatment, the water that supernatant that said steps A 2 is discharged and steps A 3 are discharged is delivered to Chu Chi;
Said WWT step comprises:
B1: the sewage to inserting carries out primary treatment;
B2: sewage of handling through step B1 and the water in the said storage pond are delivered to multistage clarifying plant and handle, and the mud of processing and scum silica frost are expelled in the said sludge sump;
B3: the sewage of handling through step B2 is expelled to intermediate pool, and the mud of said intermediate pool is expelled in the said sludge sump.
Embodiment of the present invention has following beneficial effect: the mud that sludge sump comes out at first gets in the mud concentration device and carries out concentration; Be discharged to the processed system then; Thereby can reduce moisture percentage in sewage sludge; Reduction has guaranteed reliable, the steady running of system to the influence of processed system.
In addition, this sludge treating system can also cooperate with pretreatment system for sewage, the mud of pretreatment system for sewage is handled, and the filtrating after the sludge treatment can be back to use pretreatment system for sewage, realizes effective circular treatment, reduces the harm to environment.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the process flow diagram of sludge treating system first embodiment of the present invention;
Fig. 2 is the process flow diagram of sewage of the present invention and sludge treating system first embodiment;
Fig. 3 is the process flow diagram of sewage of the present invention and sludge treating system second embodiment;
Fig. 4 is the process flow diagram of sewage of the present invention and sludge treating system the 3rd embodiment.
Embodiment
As shown in Figure 1, be first embodiment of sludge treating system of the present invention, can be used for the evaporation raffinate after the rubbish leaching vat evaporation process, mud that the leaching vat pre-treatment produces and scum silica frost etc. and handle; Certainly, this sludge treating system can also be used for the processing of other water-containing sludges.
As shown in the figure, this sludge treating system comprises successively the sludge sump 11 that connects, mud concentration device, processed system etc.; Certainly, can also comprise the bucket 18 that is connected with the processed system, Chu Chi 17 etc.
This sludge sump 11 inserts mud, and whipping appts (like diving mixer or other) can be set in this sludge sump 11, and the mud that gets into sludge sump 11 is mixed all amounts, goes out to mud concentration device through pumping then.When mud is sent into mud concentration device, can also add defoaming agents etc., take out the foam in the mud, be convenient to concentrating and precipitating.
This mud concentration device comprises one or more mud concentration tanks 12, and whipping appts (like stirrer, spiral pump or other whipping devices) can be set in mud concentration tank 12, and the mud that gets into mud concentration tank 12 is carried out concentration.In the present embodiment, can adopt the sequence batch (operation scheme, as advance mud and stirred 6-10 hour, precipitate 4-8 hour, draining 1-2 hour, restir 0.5-1 hour, take out mud again 8 hours.
Each mud concentration tank 12 comprises mud import, sludge outlet, filtrate outlet and supernatant outlet.The mud import is connected with the outlet of sludge sump 11, the sludge outlet of processed system, inserts mud.Sludge outlet is connected with bucket 18, and the mud after the concentration exports bucket 18 to and discharges via pump.The supernatant outlet is connected with storage pond 17, and the supernatant after the concentration exports Chu Chi 17 to via pump and deposits.
Filtrating after mud concentration tank 12 concentration is expelled to the processed system through filtrate outlet.In the present embodiment, this processed system comprises centrifuge 13, filtrating Buffer Pool 14, filtrating settling vessel 15 and the centrifugal water tank 16 etc. that connect successively.
The filtrate outlet of mud concentration tank 12 is connected with the import of centrifuge 13, and the filtrating after mud concentration tank 12 concentration exports centrifuge 13 to and carries out centrifuge dehydration.Mud after centrifuge 13 dehydrations is expelled to bucket 18, and filtrating then exports filtrating Buffer Pool 14 to.Filtrating is carried out the energy dissipating processing in filtrating Buffer Pool 14, the mud after the energy dissipating regularly or irregularly is expelled to mud concentration tank 12, and filtrating exports filtrating settling vessel 15 to.Filtrating is carried out the mud-water separation deposition in filtrating settling vessel 15, the mud of post precipitation regularly or irregularly is expelled to mud concentration tank 12, and filtrating then exports centrifugal water tank 16 to.The filtrating of centrifugal water tank 16 exports Chu Chi 17 to by pump etc.
Through increasing mud concentration device, can effectively reduce the water ratio of mud, avoided getting into the wide variation of the moisture percentage in sewage sludge of centrifuge 13, avoid putty, needed personal management's defective, improved reliability of system operation.
In addition, centrifuge 13 can also be equipped with the PLC system, realizes the automatic control to centrifuge 13.
As shown in Figure 2, be the synoptic diagram of first embodiment of sewage of the present invention and sludge treating system, this system comprises pretreatment system for sewage and sludge treating system.Wherein this sludge treating system is identical with the sludge treating system of Fig. 1 embodiment, so do not give unnecessary details.
This Sewage treatment systems comprises primary treatment device, intermediate pool 25 and clarifying plant 24.This clarifying plant 24 is arranged between primary treatment device and the intermediate pool 25, and sewage is further precipitated, removes scale forming matter.
In the present embodiment, this primary treatment device comprises the grid 21 that sets gradually, sewage equalizing tank 22, mixing pit 23 etc., and the sewage that gets into is carried out primary processing.Understandable, grid 21, sewage equalizing tank 22, mixing pit 23 etc. can be provided with according to different sewage quality needs one or more, one or more.
Owing to the solid particulate matter that the garbage leachate that from trash repository, comes out is contained is more; Get into sewage equalizing tank 22 for fear of solid particulate matter; This grid 21 is arranged on the water inlet position place of sewage equalizing tank 22; Be used for sewage is carried out preliminary filtration, to remove the solid particulate matter of particle diameter greater than 0.75-1mm.Flow in the sewage equalizing tank 22 through grid 21 filtering sewage naturals; Carry out the processing that homogeneous is all measured by 22 pairs of sewage of sewage equalizing tank; Reduce the rangeability of subsequent disposal facility waterpower and water quality load; Create the condition in early stage for maintenance system steady running, the hydraulic detention time of sewage equalizing tank 22 is 7-10 days, to reach the purpose that homogeneous is all measured.
Sewage after sewage equalizing tank 22 is handled is delivered to mixing pit 23 through water pump etc., carries out processing such as flocculation sediment, the adjusting of pH value.This mixing pit 23 is provided with lime charging system and flocculation charging system, and through lime charging system input white lime dry powder, the pH value of regulating mixing pit 23 through the dosage of control white lime dry powder is between 10.5-12.0; And, produce flocculation hybrid reaction (like the PAM hybrid reaction) with sewage through flocculation charging system input flocculation agent, tentatively remove the solid particulate matter in the sewage.
Proceed precipitation process in sewage transport after the primary treatment apparatus processes to the clarifying plant 24.In the present embodiment, this clarifying plant 24 can use the mechanical stirring settler, and sewage is stirred clarifying treatment.Filtrating after the processing exports intermediate pool 25 to, and mud and scum silica frost then are delivered to sludge sump 11, is handled by sludge treating system, and its a treating processes as above embodiment is put down in writing, so do not give unnecessary details.Filtrating in the storage pond 17 that sludge treating system is handled can export clarifying plant 24 to, handles as sewage.
After filtrating gets into intermediate pool 25, deposition in intermediate pool 25, filtrating exports follow-up vapo(u)rization system, biochemical system etc. to, and mud is then delivered to sludge sump 11, is handled by sludge treating system.
Present embodiment has combined pretreatment system for sewage and sludge treating system, can dispose of sewage effectively and mud.
As shown in Figure 3, be the synoptic diagram of second embodiment of sewage of the present invention and sludge treating system, the difference of itself and first embodiment is that this clarifying plant is multistage clarifying plant, other structures and a last embodiment are basic identical, so do not give unnecessary details.
This multistage clarifying plant comprises the one-level settler 241 and secondary settler 242 that is connected in turn between primary treatment device and the intermediate pool 25.
This one-level settler 241 is connected with mixing pit 23, and the sewage of handling through mixing pit 23 exports one-level settler 241 to through water pump etc., carries out elementary deposition by one-level settler 241.This one-level settler 241 can adopt airtight radial-flow settler, comprise be arranged on that the bottom strikes off the mud scraper of mud and be arranged on that top strikes off scum silica frost scrape the scum silica frost device.Through mud scraper with scrape the scum silica frost device and regularly strike off sedimentary mud and buoyant scum silica frost, avoid the accumulation of mud and scum silica frost.Mud scraper with scrape mud and the scum silica frost that the scum silica frost device strikes off and be input in the sludge sump 11, handle by sludge treating system.
Sewage through one-level settler 241 preliminary sedimentations flow in the secondary settler 242, carries out two-stage precipitation by secondary settler 242.This secondary settler 242 also can adopt airtight radial-flow settler, comprise be arranged on that the bottom strikes off the mud scraper of mud and be arranged on that top strikes off scum silica frost scrape the scum silica frost device.Through mud scraper with scrape the scum silica frost device and regularly strike off sedimentary mud and buoyant scum silica frost, avoid the accumulation of mud and scum silica frost.Mud scraper with scrape mud and the scum silica frost that the scum silica frost device strikes off and be input in the sludge sump 11, handle by sludge treating system.Certainly, this one-level settler 241, secondary settler 242 also can adopt other forms of settler.
Sewage through after secondary settler 242 precipitation process flows into intermediate pool 25, leaves standstill the back supernatant and is delivered to vapo(u)rization system etc., carries out subsequent disposal.Through this system handles, reach and remove suspended substance in the sewage, colloidal materials, heavy metal ion, hardness and chemical combination attitude ammonia nitrogen is converted into the purpose of free state ammonia nitrogen, for carry out subsequent evaporation, ammonia still process provides prerequisite.
When this system of use carried out the sewage pre-treatment, after the trash repository leaching vat was collected, after grid 21 filtered, entering sewage equalizing tank 22 carried out homogeneous and all measures; Then; Be delivered to mixing pit 23 via water pump etc., carry out hybrid reaction (like the PAM hybrid reaction) with the flocculation agent of flocculation charging system input, and; By the white lime dry powder of lime charging system from the conveying of lime feed bin; The dosage of control white lime dry powder, the pH value of regulating control mixing pit 23 is between 10.5-12.0, and the leaching vat after the hybrid reaction carries out elementary deposition by pump delivery to one-level settler 241; Then from flowing into secondary settler 242, the leaching vat behind the two-stage precipitation flows into intermediate pool 25.The entire treatment process can precipitate sewage effectively; Reach and remove the purpose ooze suspended substance in the drop liquid, colloidal materials, heavy metal ion, hardness and chemical combination attitude ammonia nitrogen to be converted into the free state ammonia nitrogen; Guarantee the reliability service of subsequent disposal system (like vapo(u)rization system), improved stability, safety of Sewage treatment systems etc.The precipitating sludge of one-level settler 241, secondary settler 242 and scum silica frost regularly enter the sludge sump 11 of sludge treating system; Carry out the subsequent disposal of mud; Filtrating in the storage pond 17 after treatment can export one-level settler 241 to and proceed to handle; Realize mud and sewage synchronous processing, avoided the pollution of environment.
As shown in Figure 4; Be the 3rd embodiment of sewage of the present invention and sludge treating system; The difference of itself and second embodiment is that this clarifying plant is multistage clarifying plant, and this multistage clarifying plant comprises one-level settler 241, de-sludging mixing tank and the secondary settler 242 that is connected in turn between primary treatment device and the intermediate pool 25; The embodiment of other structures and Fig. 3 is basic identical, so do not give unnecessary details.
This one-level settler 241 is connected with mixing pit 23, and the sewage of handling through mixing pit 23 exports one-level settler 241 to through water pump etc., carries out elementary deposition by one-level settler 241.Mud scraper with scrape mud and the scum silica frost that the scum silica frost device strikes off and be input in the sludge sump 11, handle by sludge treating system.
Sewage through one-level settler 241 preliminary sedimentations enters into the de-sludging mixing tank, carries out the processing that scale forming matter is removed.This de-sludging mixing tank can adopt yellow soda ash mixing tank 243; Certainly, can select different mixing tanks according to water quality.In the present embodiment, this yellow soda ash mixing tank 243 charging system of comprising in yellow soda ash mixing tank 243 automatic medicine adding apparatus that adds yellow soda ash and yellow soda ash being provided for automatic medicine adding apparatus.In mixing tank, drop into yellow soda ash automatically through charging system and automatic medicine adding apparatus, the scale forming matter in the sewage (like calcium, magnesium etc.) is precipitated removal, to avoid the influence of scale forming matter to follow-up system.
Further, handle through sludge treating system, the filtrating in storage pond 17 can export yellow soda ash mixing tank 243 to, promotes the de-sludging reaction, removes scale forming matter.
The sewage of handling through the de-sludging mixing tank flow in the secondary settler 242, carries out two-stage precipitation by secondary settler 242.Mud scraper with scrape mud and the scum silica frost that the scum silica frost device strikes off and be input in the sludge sump 11, handle by sludge treating system.
Sewage through after secondary settler 242 precipitation process flows into intermediate pool 25, leaves standstill the back supernatant and is delivered to vapo(u)rization system etc., carries out subsequent disposal.Through this system handles, reach and remove suspended substance in the sewage, colloidal materials, heavy metal ion, hardness and chemical combination attitude ammonia nitrogen is converted into the purpose of free state ammonia nitrogen, for carry out subsequent evaporation, ammonia still process provides prerequisite.
Above disclosedly be merely preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, the equivalent variations of therefore doing according to claim of the present invention still belongs to the scope that the present invention is contained.

Claims (10)

1. sludge treating system, the processed system that comprises the sludge sump that inserts mud and mud carried out processed; It is characterized in that, between said sludge sump and processed system, also be provided with mud concentration device; The mud that said sludge sump is discharged gets into said mud concentration device and carries out concentration, and the supernatant of said mud concentration device is discharged, and the mud after concentrating gets into said processed system.
2. sludge treating system according to claim 1 is characterized in that, said mud concentration device comprises the one or more mud concentration tanks that are provided with whipping appts; Each mud concentration tank comprises mud import, sludge outlet, the filtrate outlet that is connected with said processed system and the supernatant outlet of discharging supernatant;
Said mud import is connected with the outlet of said sludge sump, the sludge outlet of processed system, inserts mud.
3. sludge treating system according to claim 2 is characterized in that, said processed system comprises centrifuge, filtrating Buffer Pool, filtrating settling vessel and the centrifugal water tank that connects successively;
The filtrate outlet of said mud concentration tank is connected with the import of said centrifuge;
Mud after the said centrifuge dehydration is discharged, and filtrating gets into the energy dissipating of said filtrating Buffer Pool;
Filtrating after the energy dissipating of said filtrating Buffer Pool gets into said filtrating settling vessel deposition, and the filtrating of post precipitation is expelled to said centrifugal water tank;
Said filtrating Buffer Pool is expelled to said mud concentration tank with the mud of filtrating settling vessel.
4. sludge treating system according to claim 3 is characterized in that, said sludge treating system also comprises the storage pond that is connected with said centrifugal water tank.
5. sewage and sludge treating system; Comprise pretreatment system for sewage and sludge treating system; It is characterized in that said pretreatment system for sewage comprises that access sewage carries out the primary treatment device of primary treatment, deposits the intermediate pool of water outlet and output and is connected the clarifying plant between said primary treatment device and the intermediate pool;
Said sludge treating system comprises the sludge sump that inserts mud, mud is carried out the processed system of processed and between said sludge sump and processed system, also is provided with mud concentration device;
Said sludge sump inserts the mud and the scum silica frost of said intermediate pool and clarifying plant; The mud that said sludge sump is discharged gets into said mud concentration device and carries out concentration, and the supernatant of said mud concentration device is discharged, and the mud after concentrating gets into said processed system.
6. sewage according to claim 5 and sludge treating system is characterized in that, said clarifying plant is multistage clarifying plant, to handling from the sewage of said primary treatment device, and are expelled to said intermediate pool.
7. sewage according to claim 6 and sludge treating system is characterized in that, said multistage clarifying plant comprises one-level settler and the secondary settler that is connected in turn between said primary treatment device and the intermediate pool; The said sewage that inserts carries out pre-treatment through said primary treatment device, one-level settler, secondary settler and intermediate pool successively; The mud and the scum silica frost of said one-level settler and secondary settler are expelled to said sludge sump.
8. sewage according to claim 7 and sludge treating system is characterized in that, said multistage clarifying plant also comprises the de-sludging mixing tank that is connected between said one-level settler and the secondary settler; Said de-sludging mixing tank is the yellow soda ash mixing tank;
Said processed system comprises centrifuge, filtrating Buffer Pool, filtrating settling vessel, the centrifugal water tank that connects successively;
The sludge outlet of said mud concentration device is connected with the import of said centrifuge;
Mud after the said centrifuge dehydration is discharged, and filtrating gets into the energy dissipating of said filtrating Buffer Pool;
Filtrating after the energy dissipating of said filtrating Buffer Pool gets into said filtrating settling vessel deposition, and the filtrating of post precipitation is expelled to said centrifugal water tank;
Said filtrating Buffer Pool is expelled to said mud concentration device with the mud of filtrating settling vessel;
Said sludge treating system also comprises the storage pond that is connected with said centrifugal water tank; Said storage pond is connected with said yellow soda ash mixing tank.
9. sewage and method for sludge treatment is characterized in that, may further comprise the steps: sludge treatment step and WWT step; Said sludge treatment step comprises:
A1: insert mud, in sludge sump, mix all amounts;
A2: deliver to mud concentration device through the mud of steps A 1 processing and carry out concentration; Supernatant after the concentration is discharged, and the mud after concentrating gets into said processed system;
A3: said processed system carries out processed to the mud of handling through steps A 2, discharges mud and filtrating respectively.
10. sewage according to claim 9 and method for sludge treatment is characterized in that, the water that supernatant that said steps A 2 is discharged and steps A 3 are discharged is delivered to Chu Chi;
Said WWT step comprises:
B1: the sewage to inserting carries out primary treatment;
B2: sewage of handling through step B1 and the water in the said storage pond are delivered to multistage clarifying plant and handle, and the mud of processing and scum silica frost are expelled in the said sludge sump;
B3: the sewage of handling through step B2 is expelled to intermediate pool, and the mud of said intermediate pool is expelled in the said sludge sump.
CN2011104552093A 2011-12-30 2011-12-30 Sludge treatment system, sewage and sludge treatment system and sewage and sludge treatment method Active CN102515461B (en)

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CN2011104552093A CN102515461B (en) 2011-12-30 2011-12-30 Sludge treatment system, sewage and sludge treatment system and sewage and sludge treatment method
PCT/CN2012/079734 WO2013097461A1 (en) 2011-12-30 2012-08-06 Sewage and sludge treatment system and treatment method thereof

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