CN202369475U - Sewage treatment system - Google Patents

Sewage treatment system Download PDF

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Publication number
CN202369475U
CN202369475U CN2011205289518U CN201120528951U CN202369475U CN 202369475 U CN202369475 U CN 202369475U CN 2011205289518 U CN2011205289518 U CN 2011205289518U CN 201120528951 U CN201120528951 U CN 201120528951U CN 202369475 U CN202369475 U CN 202369475U
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China
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pond
tank
sewage treatment
communicated
anaerobic
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CN2011205289518U
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Chinese (zh)
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李运强
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Dongguan Lee and Man Paper Manufacturing Co Ltd
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Dongguan Lee and Man Paper Manufacturing Co Ltd
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Abstract

The utility model relates to the technical field of sewage treatment, in particular to a papermaking sewage treatment system. The sewage treatment system comprises a filter device, a primary settling tank, a quick/slow mixing tank, an adjusting tank, a cooling tower, an emergency tank, an anaerobic water collecting tank, an anaerobic treatment system, a primary anaerobic/oxic (A/O) tank, an intermediate settling tank, a secondary A/O tank and a secondary settling tank which are connected with a programmable logic controller (PLC) system and sequentially communicated, an anaerobic sludge tank and a sludge recovery system; the anaerobic treatment system comprises a pre-acidification tank, a circulating tank and an expanded granular sludge bed (EGSB) reactor which are sequentially communicated, wherein the pre-acidification tank is provided with a pulse water distribution system; a circulating loop is arranged between the EGSB reactor and the circulating tank, and partial anaerobic outlet water of the EGSB reactor refluxes to the circulating tank; and the EGSB reactor is connected with a marsh gas treatment system. Compared with the prior art, the sewage treatment system has the advantages of high working efficiency, good effect and the like. The sewage treatment system can be used for treating at the rate of 35,000m<3>/d, the chemical oxygen demand (COD) removal rate reaches 65 percent, the biochemical oxygen demand 5 (BOD5) is less than 360 mg/L, the standard specification (SS) value is less than 230 mg/L, and the sewage treatment system has the advantages of high treatment capability, good effect and high byproduct benefits.

Description

Sewage treatment systems
Technical field
The utility model relates to technical field of sewage, particularly relates to a kind of papermaking wastewater treatment system that is applied to.
Background technology
Paper industry is one of great industry of a plurality of provinces and cities of China, but the paper industry water consumption is big, blowdown flow rate is big, is that emphasis pollutes industry.The high intractability trade effluent that papermaking wastewater is high chroma, high basicity, high organic contamination, bio-degradable property is low.Major ingredient in the sewage is tiny suspension fiber, papermaking filler, waste paper impurity and a small amount of pectin, wax, carbohydrate; And all kinds of organic and mineral compound that adds in the paper process, like organism such as multiple alkane, phenol, alcohol, acid, aldehyde, ketone, ether, halides.The characteristics of sewage are that SS, COD are all higher.In the composition of COD, non-solubility COD is higher, accounts for more than 60%.In technical field of sewage, system for anaerobic treatment is great to the water treatment influential effect, and the acidication process is a step crucial in the anaerobic treatment in anaerobic system, improves the acidification hydrolization reaction of anaerobic system, with effectively strengthening traditional wastewater treatment efficiency.Be that basic EGSB (EGSB) has been high efficiency anaerobic reactor of new generation with granule sludge now, be widely used in the engineering of water treatment at home.EGSG will stir with hydraulic load realization reinforcement matrix and improve mass transfer force; Yet in fact be difficult to provide the high-intensity granule sludge of q.s; In actual application, there is the inhomogeneous unfavorable problem of treatment effect that causes of water distribution in traditional EGSB reactor drum.At present, generally all between 35~45%, the treatment efficiency in anaerobic and aerobic pond is on the low side for the COD clearance of traditional Sewage treatment systems.
The utility model content
The purpose of the utility model is to avoid weak point of the prior art and provides the COD clearance high, good sewage processing effect, the Sewage treatment systems that the by-product utilization rate is high.
The purpose of the utility model realizes through following technical scheme.
Sewage treatment systems comprises the filtration unit that is communicated with successively that is connected with the PLC system, preliminary sedimentation tank, fast/as to mix pond, equalizing tank, cooling tower, accident pool, anaerobism water collecting basin, system for anaerobic treatment, one section in A/O pond, intermediate sedimentation pond, two sections in A/O pond and second pond slowly; And anaerobic sludge pond and mud recovery system; System for anaerobic treatment comprises preparatory acidulated pool, circulatory pool, the EGSB reactor drum that is communicated with successively, and the water distribution system of EGSB reactor drum is arranged at the bottom of EGSB reactor drum, and acidulated pool is provided with the pulse water distribution system in advance; Be provided with circulation loop between EGSB reactor drum and the circulatory pool; The EGSB reactor drum is connected with marsh gas treating system; The anaerobic sludge pond is connected with the EGSB reactor drum; Be provided with the mud loop between EGSB reactor drum and the intermediate sedimentation pond, be provided with the mud loop between one section in A/O pond and the intermediate sedimentation pond, be provided with the mud loop between two sections in the two sedimentary and A/O ponds; One section in A/O pond and A/O pond are equipped with gas blower for two sections; The mud recovery system is communicated with respectively with preliminary sedimentation tank, intermediate sedimentation pond and second pond.
Wherein, Filtration unit comprises rough filtering device, fine filtering device and tiltedly nets system; Rough filtering device is positioned at the upper reaches of fine filtering device, and rough filtering device is grid canal or water collecting basin, and tiltedly the net system comprises oblique net of filtration and fiber storage tank; The fiber storage tank is arranged at and filters the tiltedly upper reaches of net, and tiltedly the net system is arranged on the upper reaches of rough filtering device.
Wherein, The mud recovery system comprises between sludge thickener, sludge dewatering and the outer transport line of mud; Preliminary sedimentation tank, intermediate sedimentation pond and second pond all are communicated with sludge thickener, be connected between sludge thickener and sludge dewatering, between sludge thickener and sludge dewatering all with fast/mix the pond slowly to be communicated with.
Wherein, marsh gas treating system comprises deaeration jar, methane voltage-stabilizing cabinet and biogas burner, and the deaeration jar is communicated with the methane voltage-stabilizing cabinet through pipeline, and the methane voltage-stabilizing cabinet is communicated with biogas burner through pipeline.
Wherein, also be provided with the flare system that is connected with the EGSB reactor drum, it comprises induced draft fan, scrubbing tower and spray pump, and the lower end of scrubbing tower is provided with inlet mouth, and inlet mouth is communicated with induced draft fan, and the upper end of scrubbing tower is provided with the air outlet, and the air outlet is communicated with spray pump.
Wherein, Also be provided with the medicine system that is communicated with preparatory acidulated pool, circulatory pool; Medicine system comprises molten medicine device, device for storing liquid, dosing impeller pump and spinner-type flowmeter, dissolves medicine device and is communicated with through infusion pipeline with device for storing liquid, and device for storing liquid and dosing impeller pump are through the loading pipeline connection; Spinner-type flowmeter is arranged in the loading pipeline, and the control end, the control end of device for storing liquid, the control end of dosing impeller pump and the output terminal of spinner-type flowmeter that dissolve medicine device all are connected with the PLC system.
Wherein, the anaerobism water collecting basin is provided with liquidometer, temperature controller, pH value controller and the pump discharge under meter that is connected with the PLC system respectively.
Wherein, acidulated pool is provided with temperature controller and the pH value controller that is connected with the PLC system respectively in advance.
Wherein, circulatory pool is provided with liquidometer, temperature controller and the pH value controller that is connected with the PLC system respectively.
Wherein, the bottom of EGSB reactor drum is provided with four water distribution zone, and each water distribution zone is provided with a under meter that is connected with the PLC system.
The beneficial effect of the utility model:
Comprise the filtration unit that is communicated with successively that is connected with the PLC system, preliminary sedimentation tank, fast/as to mix pond, equalizing tank, cooling tower, accident pool, anaerobism water collecting basin, system for anaerobic treatment, one section in A/O pond, intermediate sedimentation pond, two sections in A/O pond and second pond slowly; System for anaerobic treatment comprises preparatory acidulated pool, circulatory pool, the EGSB reactor drum that is communicated with successively, and the water distribution system of EGSB reactor drum is arranged at the bottom of EGSB reactor drum, and acidulated pool is provided with the pulse water distribution system in advance; Be provided with circulation loop between EGSB reactor drum and the circulatory pool; The EGSB reactor drum is connected with marsh gas treating system.Preparatory acidulated pool pulse water distribution, hydrolysis, the acidization of anaerobic treatment takes place in assurance, with the easy organic substrates of degrading of material decomposition one-tenth of difficult degradation; In addition, the water inlet uniform distribution in the EGSB reactor drum guarantees the anaerobic treatment effect; Carry out the degradation rate that the anaerobic and aerobic biochemical reaction can improve organic pollutant in the sewage in the A/O pond twice; Twice the mud recovery is high, has increased the by product income through deposition.Simultaneously, adopt the operation process of PLC system control Sewage treatment systems, high efficiency, effective.The utility model Sewage treatment systems can be handled 35000m every day 3, the COD clearance reaches 65%, BOD 5Be lower than 360mg/L, the SS value is lower than 230mg/L, and processing power is high, and effective, the by product income is big.
Description of drawings
Utilize accompanying drawing that the utility model is further specified, but the content in the accompanying drawing does not constitute any restriction to the utility model.
Fig. 1 is the schematic flow sheet of an embodiment of the Sewage treatment systems of the utility model.
Fig. 2 is the schematic flow sheet of the system for anaerobic treatment of Fig. 1.
Embodiment
In conjunction with following examples the utility model is described further.
embodiment 1.
The Sewage treatment systems of present embodiment; As shown in Figure 1, comprise the filtration unit that is communicated with successively that is connected with the PLC system, preliminary sedimentation tank, fast/as to mix pond, equalizing tank, cooling tower, accident pool, anaerobism water collecting basin, system for anaerobic treatment, one section in A/O pond, intermediate sedimentation pond, two sections in A/O pond and second pond slowly.Wherein, The anaerobism water collecting basin is provided with liquidometer, temperature controller, pH value controller and the pump discharge under meter that is connected with the PLC system respectively; Acidulated pool is provided with temperature controller and the pH value controller that is connected with the PLC system respectively in advance, and circulatory pool is provided with liquidometer, temperature controller and the pH value controller that is connected with the PLC system respectively.Each instrument reference mark is by the control of PLC system, and level of automation is high, sewage treatment capacity is big, and efficient is fast.
System for anaerobic treatment comprises preparatory acidulated pool, circulatory pool, the EGSB reactor drum that is communicated with successively.Acidulated pool is provided with the pulse water distribution system in advance, preparatory acidulated pool pulse water distribution, and hydrolysis, the acidization of anaerobic treatment takes place in assurance, and with the organic substrates that the material decomposition one-tenth of difficult degradation is degraded easily, hydraulic detention time is about 3h in the present embodiment.The water distribution system of EGSB reactor drum is arranged at the bottom of EGSB reactor drum, and wherein, the bottom of EGSB reactor drum is provided with four water distribution zone, and each water distribution zone is provided with a under meter dominant discharge that is connected with the PLC system.Water inlet uniform distribution in the EGSB reactor drum guarantees the anaerobic treatment effect, carries out the degradation rate that the anaerobic and aerobic biochemical reaction can improve organic pollutant in the sewage in the A/O pond twice, and twice the mud recovery is high, has increased the by product income through deposition.Simultaneously, adopt the operation process of PLC system control Sewage treatment systems, high efficiency, effective.PH value and variation of temperature in temperature monitor that preparatory acidulated pool also is provided with and the pH monitor monitoring pond provide foundation directly perceived for regulating pH value and controlled temperature.
The EGSB reactor drum of present embodiment; Comprise pond body, water distribution system, reaction zone, settling region, the triphase separator that carries out solid-liquid gas three phase separation, outlet system, go out water circulation system, the water distributing pore of water distribution system is arranged at the inside of pond body, wherein; Triphase separator has reinforced column beam and 316L stainless steel stent together support to fix; The pond body is provided with four water distribution zone, and water distributing pore is matrix form and evenly is arranged at each water distribution zone, and each water distribution zone is provided with a under meter.The water distributing pore of water distribution system is arranged on the bottom of pond body equably, makes into water uniform distribution, guarantee treatment effect.Can control the flow of water distribution zone at any time through under meter, cooperate the running of whole EGSB reactor drum, increase work efficiency and treatment effect.The EGSB reactor drum also is provided with magnetic flow meter, and each cloth water spot of EGSB reactor drum is detected by 8 magnetic flow meters, can monitor the flow that gets into each cloth water spot, guarantees the homogeneity of water distribution, guarantees the balance of Inlet and outlet water.The useful volume of EGSB reactor drum is 6600m 3, the Sewage treatment systems of present embodiment is provided with two EGSB reactor drums, and total useful volume is 13200m 3Sewage residence time in the EGSB reactor drum is 9h, volumetric loading 6.9KgCOD/ (m 3/ d), sludge loading 0.27KgCOD/KgMLSSd, upflow velocity 3m/h, biogas upflow velocity 60m/min.
In the present embodiment, be provided with circulation loop between EGSB reactor drum and the circulatory pool, the part anaerobism effluent recycling of EGSB reactor drum is in circulatory pool.The circulatory pool useful volume of present embodiment is 1173m 3, recycle ratio is 140%, circulatory pool can make EGSB reactor drum recirculation water and waste water thorough mixing, improves the basicity and the pH value of water inlet, reduces load, for anaerobic system provides stable water inlet condition.In the present embodiment, circulatory pool is equipped with 2 of 4 EGSB charging pumps, recycle pumps, 2 EGSB charging pumps of each EGSB reactor drum adapted and 1 recycle pump.Circulatory pool is provided with liquidometer, and liquidometer is connected with the PLC system, and liquid level is controlled by liquidometer in the pond, and interlocks with the EGSB charging pump, when liquid level is lower than down in limited time by PLC system pump trip.PH value and variation of temperature in the temperature monitor that circulatory pool is provided with and the pH value monitor monitoring pond are for the further accurate adjustment of waste water provides monitoring result.
The EGSB reactor drum connects and also comprises the anaerobic sludge pond, and the anaerobic sludge pond is connected with EGSB, and the anaerobic sludge pond of present embodiment is used for depositing the EGSB reactor drum and adds required anaerobic sludge, and it is provided with water-freeing arrangement.
In the present embodiment; The part mud in intermediate sedimentation pond is back to one section in EGSB reactor drum and A/O pond; Two sedimentary part mud are back to two sections in A/O pond, and one section in A/O pond is equipped with gas blower for two sections with the A/O pond, gas blower respectively to the A/O pond one section carry out blast aeration for two sections with the A/O pond.Mud refluxes and can increase sludge activity, suitably uses gas blower to increase aeration, can improve dissolved oxygen content in the pond, more helps taking place aerobic reaction, is the organic pollutant elimination that is decomposed better, improves wastewater treatment efficiency.
Present embodiment and the flare system that the EGSB reactor drum is connected comprise induced draft fan, scrubbing tower, spray pump, and the lower end of scrubbing tower is provided with inlet mouth, and inlet mouth is communicated with induced draft fan, and the upper end of scrubbing tower is provided with the air outlet, and the air outlet is communicated with spray pump.The foul waste gas that WWT produces is earlier through the preliminary processing of scrubbing tower process, and through the pouring of dashing of spray pump, scavenging reduces the pollution to environment basically fully, improves the factory work environment again.
Present embodiment, filtration unit comprise rough filtering device and oblique net system, and rough filtering device is positioned at the upper reaches of fine filtering device; Rough filtering device is grid canal or water collecting basin; Tiltedly the net system comprises the oblique net of filtration, fiber storage tank, and the fiber storage tank is arranged at and filters the tiltedly upper reaches of net, when fiber reaches a certain amount of, carries out fiber recovery and uses; Lower production cost, reduce environmental pollution.
Present embodiment also comprises mixed soon/slowly pond, equalizing tank, cooling tower, accident pool; Hurry up/mix the pond slowly to be arranged between oblique net system and the preliminary sedimentation tank; Equalizing tank is arranged between preliminary sedimentation tank and the anaerobism water collecting basin, and cooling tower is arranged between equalizing tank and the anaerobism water collecting basin, and accident pool is connected with the anaerobism water collecting basin.Guarantee the stable condition of sewage, handle, guarantee treatment effect further to carry out anaerobic-aerobic better.Present embodiment fast/mix the pond slowly to be meant and can to carry out mixing soon, also can carry out the pond of mixing slowly, select for use the fast mode of one of mixing or mixing slowly to dispose of sewage during use.
Also comprise the mud recovery system in the present embodiment; The mud recovery system comprises between sludge thickener, sludge dewatering, the outer transport line of mud; The materialized mud of preliminary sedimentation tank, intermediate sedimentation pond and both excess sludges of second pond are all transported to sludge thickener; Mud after sludge thickener is handled is transported between sludge dewatering, and gained mud is transported by the outer transport line of mud, and the surplus water between sludge thickener and sludge dewatering is transported to mixed soon/slowly pond and handled.In the process of anerobes degraded COD, every degraded 1kgCOD produces the anaerobic sludge of 0.02kg approximately, and this project can produce the mud of 945kg/d when oepration at full load, calculate according to 800 yuan/t of present price, and this part also has very high benefit.
In the present embodiment; Also be provided with the medicine system that is communicated with preparatory acidulated pool, circulatory pool; Medicine system comprises molten medicine device, device for storing liquid, dosing impeller pump and spinner-type flowmeter, dissolves medicine device and is communicated with through infusion pipeline with device for storing liquid, and device for storing liquid and dosing impeller pump are through the loading pipeline connection; Spinner-type flowmeter is arranged in the loading pipeline, and the control end, the control end of device for storing liquid, the control end of dosing impeller pump and the output terminal of spinner-type flowmeter that dissolve medicine device all are connected with the PLC system.Spinner-type flowmeter is simple in structure, directly perceived, the pressure-losses is little, easy to maintenance, the flow that can survey corrosive medium, with accurately dosing of dosing impeller pump combination, again because of medicine system by the PLC system, accurately effectively, steadily move automatically continuously.
The operation workflow of present embodiment is following:
Waste water is filtered by the grid canal, removes big part solid dirt, and the oblique net of process system stops and recycled fiber again.
Through after the filtration treatment, add the cohesion that PAM (acrylic amide, Polyacrylamide, abbreviation PAM) and PAC (PAC abridges for Poly aluminum Chloride (PAC), Polyaluminium Chloride) carry out suspended particle in the sewage and purify waste water.
The sewage that has added PAM and PAC enters into mixed soon/slowly pond and carries out the thorough mixing reaction; Getting into the preliminary sedimentation tank precipitate and separate; Materialized mud is transported to sludge thickener and is reclaimed, and sewage gets into equalizing tank, and equalizing tank is the assurance of anaerobic reaction steady running to the adjusting of water quality, the water yield.
The sewage of regulating through equalizing tank enters into the cooling tower cooling and flows into the anaerobism water collecting basin and prepare for next step anaerobic treatment, produces then directly to get into accident pool when unusual, and the anaerobism water collecting basin is flowed back to certainly by accident pool in the back of resuming production.The anaerobism water collecting basin is provided with liquidometer, and liquidometer is connected with the PLC system, and anaerobism water collecting basin liquid level is taken into account the control of PLC system by liquid level, prescribes a time limit down by PLC system pump trip when liquid level is lower than, and liquid level is lower than to go up prescribes a time limit by the automatic turn on pump of PLC system.PH value and variation of temperature in temperature monitor that the anaerobism water collecting basin is provided with and the pH monitor monitoring anaerobism water collecting basin provide foundation directly perceived for regulating pH value and controlled temperature.Also be provided with magnetic flow meter, get into preparatory acidulated pool flow and detect by magnetic flow meter.
Sewage to preparatory acidulated pool, is adding anaerobion required nutritive salt N, P in the acidulated pool from anaerobism water collecting basin pump in advance, and present embodiment uses urea and sodium phosphate as nutritive salt, and sewage per ton adds 0.07kg urea, 0.02kg sodium phosphate.
Acidulated pool adds NaOH from flowing at circulatory pool in circulatory pool in advance, and the pH value of waste water in the pond is accurately adjusted again, makes the waste water ph that gets into the EGSB reactor drum reach the required requirement of anaerobic treatment.
Waste water in the circulatory pool carries out anaerobic treatment by being pumped to the EGSB reactor drum.Waste water is partly refluxed to circulatory pool from flowing to one section in A/O pond in the EGSB reactor drum.
The sewage that flow to one section in A/O pond carries out aerobic reaction, uses gas blower to carry out blast aeration according to actual needs, improves sludge activity.
The sewage of one section processing gets into the intermediate sedimentation pond and precipitates through the A/O pond, and part mud is back to EGSB reactor drum and one section in A/O pond, and excess sludge is transported to sludge thickener and carried out follow-up sludge treatment recovery.
The sewage that sewage after the precipitation process of intermediate sedimentation pond is two sections to the A/O pond carries out aerobic reaction, uses gas blower to carry out blast aeration according to actual needs, improves sludge activity.The sewage of two sections processing entering second pond precipitates through the A/O pond; Part mud is back to one section in EGSB reactor drum and A/O pond; Excess sludge is transported to sludge thickener and is carried out follow-up sludge treatment recovery; Comprise getting between sludge dewatering and separate, the mud outward transport, the current of handling gained are back to and mix the pond soon/slowly from new entering Sewage treatment systems.
At last, the clear water after discharging or recycle are handled.
The existing water quality and quantity data of the utility model and the processing power and the effect of Sewage treatment systems are following:
The table 1 raw water quality water yield
The processing power and the effect of the existing Sewage treatment systems of table 2
The processing power of the Sewage treatment systems of table 3 the utility model and effect
Annotate: the CODc testing method detects according to " GB/T11914-89 " method
The operation sub product income TA of table 4 anerobic sowage system
embodiment 2.
The Sewage treatment systems of present embodiment is on the basis of embodiment 1; Be with the difference of embodiment 1; The EGSB reactor drum is connected with marsh gas treating system; Marsh gas treating system comprises deaeration jar, methane voltage-stabilizing cabinet, biogas burner, and the deaeration jar is communicated with the methane voltage-stabilizing cabinet through pipeline, and the methane voltage-stabilizing cabinet is communicated with biogas burner through pipeline.The EGSB reactor drum produces biogas in the process of disposing of sewage, the biogas amount of generation depends on the COD load that puts on reactor drum, and the COD load is high more, and aerogenesis is many more.Biogas is collected with further processing and utilizing at the gas-liquid separator of reactor head, and present embodiment is biogas to be led to biogas burner burn, and the burn heat energy of gained of biogas is used again.When carrying out WWT, the biogas mean yield is about 18000m when clearance reaches the mxm. of designed capacity 3/ d, wherein methane content is about 13500m 3/ d, the calorific value of methane is greater than 7000kCal/m 3, can make full use of as heat energy, the sub product income is big.Simultaneously, marsh gas treating system is provided with the biogas under meter, and the biogas under meter is arranged at a segment pipe, not only can detect the supervision inside reactor and react situation, and can help reactor drum control COD load.The biogas that anaerobic reaction produces in the EGSB reactor drum flows into the deaeration jar earlier again to the methane voltage-stabilizing cabinet, flow to the biogas burner burning then and utilizes.Other structures and the principle of this enforcement are identical with embodiment 1, repeat no more at this.
Should be noted that at last; Above embodiment only be used to explain the utility model technical scheme but not to the restriction of the utility model protection domain; Although the utility model has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model, and do not break away from the essence and the scope of the utility model technical scheme.

Claims (10)

1. Sewage treatment systems is characterized in that: comprise the filtration unit that is communicated with successively that is connected with the PLC system, preliminary sedimentation tank, fast/as to mix pond, equalizing tank, cooling tower, accident pool, anaerobism water collecting basin, system for anaerobic treatment, one section in A/O pond, intermediate sedimentation pond, two sections in A/O pond and second pond slowly; And anaerobic sludge pond and mud recovery system; Said system for anaerobic treatment comprises preparatory acidulated pool, circulatory pool, the EGSB reactor drum that is communicated with successively, and the water distribution system of said EGSB reactor drum is arranged at the bottom of said EGSB reactor drum, and said preparatory acidulated pool is provided with the pulse water distribution system; Be provided with circulation loop between said EGSB reactor drum and the said circulatory pool; Said EGSB reactor drum is connected with marsh gas treating system; Said anaerobic sludge pond is connected with said EGSB reactor drum; Be provided with the mud loop between said EGSB reactor drum and the said intermediate sedimentation pond, be provided with the mud loop between one section in said A/O pond and the said intermediate sedimentation pond, be provided with the mud loop between two sections in the said two sedimentary and said A/O ponds; One section in said A/O pond and A/O pond are equipped with gas blower for two sections; Said mud recovery system is communicated with respectively with said preliminary sedimentation tank, intermediate sedimentation pond and second pond.
2. according to the described Sewage treatment systems of claim 1; It is characterized in that: said filtration unit comprises rough filtering device, fine filtering device and tiltedly nets system; Said rough filtering device is positioned at the upper reaches of said fine filtering device, and said rough filtering device is grid canal or water collecting basin, and said oblique net system comprises filters oblique net and fiber storage tank; Said fiber storage tank is arranged at the tiltedly upper reaches of net of said filtration, and said oblique net system is arranged on the upper reaches of said rough filtering device.
3. Sewage treatment systems according to claim 2; It is characterized in that: said mud recovery system comprises between sludge thickener, sludge dewatering and the outer transport line of mud; Said preliminary sedimentation tank, intermediate sedimentation pond and second pond all are communicated with said sludge thickener; Be connected between said sludge thickener and said sludge dewatering, between said sludge thickener and said sludge dewatering all with said fast/mix the pond slowly to be communicated with.
4. Sewage treatment systems according to claim 3; It is characterized in that: said marsh gas treating system comprises deaeration jar, methane voltage-stabilizing cabinet and biogas burner; Said deaeration jar is communicated with said methane voltage-stabilizing cabinet through pipeline, and said methane voltage-stabilizing cabinet is communicated with said biogas burner through pipeline.
5. Sewage treatment systems according to claim 4; It is characterized in that: also be provided with the flare system that is connected with the EGSB reactor drum; It comprises induced draft fan, scrubbing tower and spray pump, and the lower end of said scrubbing tower is provided with inlet mouth, and said inlet mouth is communicated with said induced draft fan; The upper end of said scrubbing tower is provided with the air outlet, and said air outlet is communicated with said spray pump.
6. Sewage treatment systems according to claim 5; It is characterized in that: also be provided with the medicine system that is communicated with preparatory acidulated pool, circulatory pool; Said medicine system comprises molten medicine device, device for storing liquid, dosing impeller pump and spinner-type flowmeter; Said molten medicine device is communicated with through infusion pipeline with said device for storing liquid; Said device for storing liquid and said dosing impeller pump are through the loading pipeline connection, and said spinner-type flowmeter is arranged in the said loading pipeline, and the control end of the control end of said molten medicine device, the control end of device for storing liquid, dosing impeller pump and the output terminal of spinner-type flowmeter all are connected with said PLC system.
7. Sewage treatment systems according to claim 1 is characterized in that: said anaerobism water collecting basin is provided with liquidometer, temperature controller, pH value controller and the pump discharge under meter that is connected with the PLC system.
8. Sewage treatment systems according to claim 1 is characterized in that: said preparatory acidulated pool is provided with temperature controller and the pH value controller that is connected with the PLC system.
9. Sewage treatment systems according to claim 1 is characterized in that: said circulatory pool is provided with liquidometer, temperature controller and the pH value controller that is connected with the PLC system.
10. Sewage treatment systems according to claim 1 is characterized in that: the bottom of said EGSB reactor drum is provided with four water distribution zone, and each water distribution zone is provided with a under meter that is connected with the PLC system.
CN2011205289518U 2011-12-16 2011-12-16 Sewage treatment system Withdrawn - After Issue CN202369475U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102491598A (en) * 2011-12-16 2012-06-13 东莞理文造纸厂有限公司 Sewage disposal system
CN105565615A (en) * 2016-03-04 2016-05-11 苏州苏沃特环境科技有限公司 Technology for carrying out standard treatment on pentaerythritol wastewater
CN106045038A (en) * 2016-07-12 2016-10-26 佛山杰致信息科技有限公司 Sewage treatment system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102491598A (en) * 2011-12-16 2012-06-13 东莞理文造纸厂有限公司 Sewage disposal system
CN105565615A (en) * 2016-03-04 2016-05-11 苏州苏沃特环境科技有限公司 Technology for carrying out standard treatment on pentaerythritol wastewater
CN106045038A (en) * 2016-07-12 2016-10-26 佛山杰致信息科技有限公司 Sewage treatment system

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