CN1509997A - Normal water SBR treating method and device for kitchen sewage - Google Patents
Normal water SBR treating method and device for kitchen sewage Download PDFInfo
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- CN1509997A CN1509997A CNA021577560A CN02157756A CN1509997A CN 1509997 A CN1509997 A CN 1509997A CN A021577560 A CNA021577560 A CN A021577560A CN 02157756 A CN02157756 A CN 02157756A CN 1509997 A CN1509997 A CN 1509997A
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Abstract
A SBR process for reclaiming the kitchen sewage includes such steps as pumping the kitchen sewage in pretreating pool for removing oil and depositing, pumping to high-position water tank, flowing in SBR biochemical reaction pool under the control of flow meter, aerating and depositing, flowing a further treating pool, adding coagulant, coagulating and depositing, sand filtering and disinfecting.
Description
Technical field
The present invention relates to the SBR that a kind of kitchen waste water is middle water (sequencing batch active sludge) treatment process and device thereof, belong to water resources recycle utilization field.
Prior art
Kitchen waste water has following three characteristics: the one, though sewage quantity accounts for the 5%-10% of sanitary sewage total amount, amount of pollutant accounts for about 40% of total amount; The 2nd, the sewage quantity of normal circumstances following every day of day part has than big-difference, has tangible intermittence; The 3rd, sewage quality has than great fluctuation process, and its organic loading and oleaginousness desired value are all than higher simultaneously.Obviously, kitchen waste water is can biochemical degree higher, the general treatment process that adopts based on biological process.But because sewage quality fluctuation is bigger, when adopting the traditional biological method to handle, will be difficult to guarantee when water quality is relatively poor, handle back water quality and reach emission standard, let alone its water outlet reach in water water quality leading indicator and cyclically utilizing in addition; Otherwise if effluent quality is up to standard when guaranteeing that water quality is relatively poor, then treatment unit was loaded lowly at ordinary times, caused construction investment too high.Therefore, traditional biological method technology is being difficult to meet the demands aspect processing multifunctionality, efficient stable and the economic rationality, and this just needs to seek novel process be treated to middle water with kitchen waste water.Since the eighties in 20th century, handle the research of trade effluent to the Technology and the Application and Development of emission standard in developed country with regional extensively the development with advanced biological process such as AB, ABR, SBR, LINDE, UASB, wherein SBR technology is widely used to emission standard at the processing trade effluent with its treatment unit intensification degree height and intermittent water inflow advantage.But do not see so far with the SBR method and handle method and the device that kitchen waste water is middle water.
Summary of the invention
The objective of the invention is generally to adopt traditional technology to handle kitchen waste water at present in order to overcome, but its water outlet does not still reach the difficult point of the emission standard of defined, it is the SBR treatment process and the device thereof of middle water that a kind of kitchen waste water is provided
Technical process of the present invention is: the advanced treatment → middle water reuse of pre-treatment → SBR biochemical treatment → coagulation and filtration sterilization that kitchen waste water → do oil removing precipitation is regulated etc., and concrete treatment step is:
(1) by sump pump kitchen waste water is squeezed into pretreatment pool, carry out oil removing and precipitation;
(2) through pretreated water outlet, to elevated tank,, flow into the SBR biochemical reaction tank by water pump lifting by the water inlet requirement by flooding velocity meter control flow velocity, carry out aeration and precipitation;
(3) water outlet after the SBR biochemical treatment flows into the advanced treatment pond, carries out coagulating sedimentation, and the coagulating agent that adds trace is polyphosphazene polymer aluminium (PAC), further reduces the pollutent desired value;
(4) water outlet behind coagulating sedimentation is filtered by tiny sand grains;
(5) carry out disinfection at last, make the middle water water quality reaching standard of water outlet.
In order to realize that the device that aforesaid method need provide comprises: water pump, pretreatment pool, elevated tank, upflow tube, commentaries on classics brush, air compressor machine, gas meter, air diffuser, liquid meter, sbr reactor device, whipping appts, direct-current motor, coagulative precipitation tank, filtration unit, topping-up pump, retaining fountain basin, submersible pump; Water pump by pipeline respectively with pretreatment pool, elevated tank connects, be equipped with liquid meter between elevated tank and the sbr reactor device, flow into the sbr reactor device through pretreated sewage through metering, sbr reactor device water outlet passes through water pump, pipeline is connected with coagulative precipitation tank, water outlet after the biochemical treatment of sbr reactor device flows into coagulative precipitation tank, the water outlet of coagulative precipitation tank is connected with filtration unit by topping-up pump, be provided with fountain behind the filtration unit, the water that installs after filtration after the filter-sterilized flows into the retaining fountain basin for cleaning roads, greening irrigation, landscape water, clean automobile, usefulness such as flush the toilet.
Characteristics of the present invention and effect:
(1) intensification degree height, take up an area of less, on build the little and less investment of quantities, with conventional activated sludge process relatively, can save initial cost more than 30%.
(2) technology reaches simply that intermittent water inflow can solve sewage water yield problem of non-uniform, sludge loading is low, organic removal rate is high, sludge yield is low.
(3) system reliability is strong, maintenance management is convenient, power consumption low and the day-to-day operation expense is low.
Effluent quality after kitchen waste water is handled through this Technology, reach or be lower than country relevant in water water quality leading indicator (GJ/T 95-2000, as shown in table 1), can be back to by pipe network flush the toilet, cleaning roads, greening irrigation, view, towards Xian's automobile etc., realize the innoxious and resource utilization on the spot of sewage.
Water water quality leading indicator value (GJ/T 95-2000) in the table 1
| Content | ?BOD 5?[mg/L] | COD cr[mg/L] | Ammonia nitrogen (in N) [mg/L] | Turbidity [degree] | Suspended substance [mg/L] | ?PH |
| ?CJ/T?95-2000 | ?10 | 50 | ?20 | 10 | 10 | ?6.5～9.0 |
Description of drawings
Fig. 1 is a process flow sheet of the present invention;
Fig. 2 is the SBR treatment system figure of middle water for kitchen waste water.
Embodiment
Technical process of the present invention as shown in Figure 1, kitchen waste water → oil removing sedimentary adjustive pool is made pre-treatment → sbr reactor pond biochemical treatment → coagulative precipitation tank and is carried out coagulating sedimentation → filtering basin filtration → retaining (sterilization) pond sterilization → middle water reuse, and concrete treatment step is:
(1) sump pump is squeezed into pretreatment pool with kitchen waste water, carry out oil removing and precipitation simultaneously in the SBR aeration is handled, this pond will be as the sewage quantity equalizing tank, to guarantee the continuous service of entire treatment system, the characteristics that intermittent water inflow can solve sewage water yield problem of non-uniform have been embodied, really played a very economical pond three and used function, pretreatment time is 1 hour;
(2) through pretreated water outlet, to elevated tank,, flow into the SBR biochemical reaction tank by water pump lifting by the water inlet requirement by flooding velocity meter control flow velocity, carry out aeration and precipitation, make the COD in the sewage
Cr, BOD
5, SS, NH
aPollutent such as-N, turbidity desired value reaches or is lower than the relevant sewage drainage standard of country, and the microbial population in the biochemical reaction tank is cultivated by ordinary activated sludge, and the optimum technology parameter of SBR biochemical treatment is: aeration phase sludge loading N
s=0.4 (kgBOD
5/ kgMLSSd), cycle 6h (flooding time 0.5h, aeration time 4h, sedimentation time 0.5h, water discharge time 0.5h, idle mixing time 0.5h), mixed solution MLSS=3000mg/L;
(3) water outlet after the SBR biochemical treatment flows into the advanced treatment pond, carry out coagulating sedimentation, the coagulating agent that adds trace is polyphosphazene polymer aluminium (PAC), further reduce the pollutent desired value, the advanced treatment time is 1h, coagulating agent is polyphosphazene polymer aluminium (PAC, concentration is 30mg/L), and its dosage scope is 15～20mg/L;
(4) water outlet behind coagulating sedimentation is filtered by tiny sand grains;
(5) carry out disinfection at last, make the middle water water quality reaching standard of water outlet.
The device that provides in order to realize aforesaid method comprises as shown in Figure 2: water pump 1, pretreatment pool 2, elevated tank 3, upflow tube 4, commentaries on classics brush 5, air compressor machine 6, gas meter 7, air diffuser 8, liquid meter 9, sbr reactor device 10, whipping appts 11, direct-current motor 12, coagulative precipitation tank 13, filtration unit 14, topping-up pump 15, fountain 16, submersible pump 17; Water pump 1 by pipeline respectively with pretreatment pool 2, elevated tank 3 connects, be equipped with liquid meter 9 between elevated tank 3 and the sbr reactor device 10, flow into sbr reactor device 10 through pretreated sewage through metering, sbr reactor device water outlet passes through water pump, pipeline is connected with coagulative precipitation tank 13, water outlet after the biochemical treatment of sbr reactor device flows into coagulative precipitation tank 13, the water outlet of coagulative precipitation tank is connected with filtration unit 14 by topping-up pump 15, be provided with fountain 16 behind the filtration unit, the water that installs after filtration after the filter-sterilized flows into fountain for cleaning roads, greening irrigation, landscape water, clean automobile, usefulness such as flush the toilet.
The contriver is according to above-mentioned technology, by the kitchen of 20 humans, promptly produce the sewage quantity of 400L every day, and the SBR method treatment system device that has designed this kitchen waste water and be middle water is to sewage disposal, and the pollutent desired value of sewage and water outlet is as shown in table 2.As seen, water outlet after treatment meets the relevant middle water water quality leading indicator (GJ/T 95-2000) of country.
Table 2 kitchen waste water and effluent quality leading indicator value
| Content | ??BOD 5?[mg/L] | ??COD cr??[mg/L] | Ammonia nitrogen (in N) [mg/L] | Turbidity [degree] | Ss suspended solid [mg/L] | ????PH |
| The kitchen waste water desired value | ??986.3 | ??1428.3 | ??18.6 | ??172.5 | ??149.6 | ????9.2 |
| Handle back effluent index value | ??7.3 | ??40.6 | ??1.83 | ??8.3 | ??8.7 | ????7.0 |
Claims (2)
1, a kind of kitchen waste water is the SBR treatment process of middle water, it is characterized in that, technical process is: the advanced treatment → middle water reuse of pre-treatment → SBR biochemical treatment → coagulation and filtration sterilization that kitchen waste water → do oil removing precipitation is regulated etc.; Its concrete treatment step is:
(1) pump is squeezed into pretreatment pool with kitchen waste water, carries out oil removing and precipitation;
(2) through pretreated water outlet, to elevated tank,, flow into the SBR biochemical reaction tank by water pump lifting by the water inlet requirement by flooding velocity meter control flow velocity, carry out aeration and precipitation;
(3) water outlet after the SBR biochemical treatment flows into the advanced treatment pond, carries out coagulating sedimentation, and the coagulating agent that adds trace is polyphosphazene polymer aluminium (PAC), further reduces the pollutent desired value;
(4) water outlet behind coagulating sedimentation is filtered by tiny sand grains;
(5) carry out disinfection at last, make the middle water water quality reaching standard of water outlet.
2, comprise for the device that is provided of realizing aforesaid method: water pump (1), pretreatment pool (2), elevated tank (3), upflow tube (4), commentaries on classics brush (5), air compressor machine (6), gas meter (7), air diffuser (8), liquid meter (9), sbr reactor device (10), whipping appts (11), direct-current motor (12), coagulative precipitation tank (13), filtration unit (14), topping-up pump (15), fountain (16), submersible pump (17); Water pump (1) is connected with pretreatment pool (2), elevated tank (3) respectively by pipeline, be equipped with liquid meter between elevated tank (3) and the sbr reactor device (10), flow into sbr reactor device (10) through pretreated sewage through metering, sbr reactor device (10) water outlet is connected with coagulative precipitation tank (13) by water pump, pipeline, water outlet after the biochemical treatment of sbr reactor device flows into coagulative precipitation tank, the water outlet of coagulative precipitation tank (13) is connected with filtration unit (14) by topping-up pump (15), is provided with fountain (16) behind the filtration unit (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157756 CN1208261C (en) | 2002-12-26 | 2002-12-26 | Normal water SBR treating method and device for kitchen sewage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157756 CN1208261C (en) | 2002-12-26 | 2002-12-26 | Normal water SBR treating method and device for kitchen sewage |
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| Publication Number | Publication Date |
|---|---|
| CN1509997A true CN1509997A (en) | 2004-07-07 |
| CN1208261C CN1208261C (en) | 2005-06-29 |
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ID=34236686
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02157756 Expired - Fee Related CN1208261C (en) | 2002-12-26 | 2002-12-26 | Normal water SBR treating method and device for kitchen sewage |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233598A (en) * | 2013-05-07 | 2013-08-07 | 顾建 | Life integration environmentally-friendly facility for field operation |
| CN101475293B (en) * | 2009-02-04 | 2013-09-25 | 新奥科技发展有限公司 | Wastewater treating and recycling process |
| CN104193109A (en) * | 2014-09-17 | 2014-12-10 | 安徽省绿巨人环境技术有限公司 | Catering sewage treatment method |
| CN104609679A (en) * | 2015-03-02 | 2015-05-13 | 金昌元 | Sewage and wastewater treatment device based on cyclic biological treatment |
-
2002
- 2002-12-26 CN CN 02157756 patent/CN1208261C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475293B (en) * | 2009-02-04 | 2013-09-25 | 新奥科技发展有限公司 | Wastewater treating and recycling process |
| CN103233598A (en) * | 2013-05-07 | 2013-08-07 | 顾建 | Life integration environmentally-friendly facility for field operation |
| CN103233598B (en) * | 2013-05-07 | 2015-05-20 | 江苏科威环保技术有限公司 | Life integration environmentally-friendly facility for field operation |
| CN104193109A (en) * | 2014-09-17 | 2014-12-10 | 安徽省绿巨人环境技术有限公司 | Catering sewage treatment method |
| CN104609679A (en) * | 2015-03-02 | 2015-05-13 | 金昌元 | Sewage and wastewater treatment device based on cyclic biological treatment |
| CN104609679B (en) * | 2015-03-02 | 2016-03-16 | 金昌元 | According to lower water, the wastewater treatment equipment of circulating biological process |
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| Publication number | Publication date |
|---|---|
| CN1208261C (en) | 2005-06-29 |
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