CN202337723U - Sludge reduction treatment device - Google Patents
Sludge reduction treatment device Download PDFInfo
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- CN202337723U CN202337723U CN2011204627362U CN201120462736U CN202337723U CN 202337723 U CN202337723 U CN 202337723U CN 2011204627362 U CN2011204627362 U CN 2011204627362U CN 201120462736 U CN201120462736 U CN 201120462736U CN 202337723 U CN202337723 U CN 202337723U
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Abstract
The utility model discloses a sludge reduction treatment device which comprises a water inlet pipe, an anoxic tank, an aerobic tank, a secondary sedimentation tank, a water outlet pipe, a first sludge outlet pipeline, a second sludge outlet pipeline and an anaerobic hydrolysis acidification tank, wherein the water inlet pipe, the anoxic tank, the aerobic tank, the secondary sedimentation tank and the water outlet pipe are connected in turn; the secondary sedimentation tank is connected with the anoxic tank by the first sludge outlet pipeline; the secondary sedimentation tank is connected with the anaerobic hydrolysis acidification tank by the second sludge outlet pipeline; and the anaerobic hydrolysis acidification tank is connected with the anoxic tank. The sludge reduction treatment device disclosed by the utility model has the advantages that the device can save energy sources, reduce sludge treatment costs, civil investments and the dosage of carbon sources used for treating waste water in a condition of low carbon nitrogen ratio, ensure sewage treatment plants to run stably and standardly, and reduce the running cost of enterprises.
Description
Technical field
The utility model relates to wastewater treatment mud decrement technical field, relates generally to a kind of mud decrement treatment unit.
Background technology
Country's " urban wastewater treatment firm pollutant emission standard " promulgation (GB18918-2002) and the appearance of each regional local emission standard mean that China most of sewage/wastewater treatment plant all will be faced with the problem of WWT upgrading.Required investment is handled and disposed to excess sludge can account for working cost that entire sewage treatment plant invests and the 25%-65% of working cost, has become a great problem that biological wastewater treatment technology faces.The inner excess sludge reduction of realizing satisfies in water outlet under the situation of emission request in saprobic system, and the biosolids quantity that whole sewage and wastewater treatment system is outwards discharged reaches minimum, is to solve one of comparatively ideal approach of mud problem.
The present method of a lot of materializations of having announced is both at home and abroad carried out cell " liquefaction " with the excess sludge that refluxes; Reaching system's surplus sludge volume reduces; For example: in the Chinese patent patent No. is in 200510102944.0, uses the supersonic cell treater can accelerate cytolysis, when being used for the mud return-flow system; Can strengthen the degradability of cell, reduce the output of mud.In the Chinese patent patent No. is in 03138936.8, and excess sludge is through ozone reactor, and ozone carries out ozonize to the mud that refluxes, and the cellularstructure of destroy microorganisms makes himself to be easy to decompose the extra-high-speed biological degradability.In the Chinese patent patent No. is once to have reported membrane bioreactor in 200710144318.7; Because holding back of film; Make that microorganism concn exceeds the conventional activated sludge method more than 10 times in the reactor drum, make excess sludge production few, even can reach discharged without residual mud.Increase the food chain length of Waste Water Treatment in addition; Adding bacterial classification is a kind of effective ways that reduce sludge quantity; In the Chinese patent patent No. is to have reported in 200810181192.5 biologic chain is incorporated in the sewage treatment process; Utilize protozoon successfully to subdue excess sludge production, for example add uncoupling agents etc.Chinese patent 201010019353.8 also discloses and has utilized OSA (aerobic-deposition-anoxic) technology to carry out the decrement of excess sludge; There are many scholars also the mud decrement effect of this technology to be carried out comparative study both at home and abroad; Think that mud decrement is because acidication, mikrobe endogenous metabolism and the coefficient result of uncoupling metabolism; And point out this technology for the decrement of mud generally about 35%, take place under the operation abnormal conditions such as sludge bulking, the mud decrement effect is poorer.Chinese patent 200320107446.1 has been reported a kind of device that utilizes ultrasonic sludge disintegration, and effect is more obvious, but energy consumption is excessive, and is uneconomical for the sludge disintegration running cost than big yield.
These methods all exist running cost high in actual sludge decrement process at present, and investment is big, defectives such as decrement DeGrain.Sign in this, need and on original treatment process basis, to carry out the endogenous zero release engineering that becomes of subduing of mud.We are from the idea of global optimization; In conjunction with the actual running condition of existing wastewater treatment and local physical condition with require to select practical, economical rationality, reliable and stable treatment process scheme; But also consider and the technology combination of existing treatment process, existing construction of structures processing power, the lifting of obtaining treatment effect with very little cost with this engineering.
The utility model content
Goal of the invention: in order to overcome the deficiency that exists in the prior art; The purpose of the utility model is for a kind of mud decrement treatment unit is provided; This device can reduce the sludge treatment cost, saves the energy, reduce carbon source dosage under the low ratio of carbon to ammonium condition simultaneously; Guarantee sewage work's stably reaching standard operation, alleviate the enterprise operation cost.
Technical scheme: for realizing above-mentioned technical problem; The technical scheme that the utility model adopts is: a kind of mud decrement treatment unit comprises that water inlet pipe, anoxic pond, Aerobic Pond, second pond, rising pipe, first go out sludge pipe, second and go out sludge pipe and anaerobic hydrolysis-acidification pond; Said water inlet pipe, anoxic pond, Aerobic Pond, second pond, rising pipe connect successively; Said second pond goes out sludge pipe through first and is connected with anoxic pond, and said second pond goes out sludge pipe through second and is connected with the anaerobic hydrolysis-acidification pond, and said anaerobic hydrolysis-acidification pond links to each other with anoxic pond.
For the mud that can control in the second pond is proportionally shunted; Said mud decrement treatment unit also comprises mud house steward and sludge pump; Said second pond is connected with sludge pump through the mud house steward, and said first goes out sludge pipe, second goes out sludge pipe and be connected with sludge pump respectively.
Be respectively equipped with biologic packing material at said Aerobic Pond, anoxic pond, anaerobic hydrolysis-acidification in the pond, said biologic packing material is the quick-decomposing biological ball; Porous support adopts multiple porous filler sintering in the quick-decomposing biological ball, and combines the sponge plastics shell to assemble." porous " not only is embodied in the slit between the little lump, and is embodied on the natural cellular porous that little lump self had, and therefore has characteristics such as easy to be filmed, surface-area are big, diversified microenvironment.
In said Aerobic Pond, anoxic pond, anaerobic hydrolysis-acidification pond; The volume of said biologic packing material accounts for the 65-70% of said Aerobic Pond, anoxic pond, anaerobic hydrolysis-acidification pool volume respectively; What can guarantee each reaction tank mud like this holds back the sharp separation with muddy water in a large number, can reduce the cost that biological ball adds in a large number again simultaneously.
The principle of work of the utility model: mud flows into anoxic pond from water inlet pipe; And then inflow Aerobic Pond; Water outlet gets into second pond by pipeline, and the water outlet after the processing is by the rising pipe outflow system, and 70% flows into the acidifying that is hydrolyzed of anaerobic hydrolysis-acidification pond through sludge pump in the second pond excess sludge; Be back in the anoxic pond through muddy water behind the anaerobic hydrolysis-acidification, 30% excess sludge directly is back to anoxic pond through sludge pump in addition.Mud realizes that through anaerobic hydrolysis the release of carbon (C), nitrogen (N), phosphorus (P) can effectively compensate carbon in the waste water: nitrogen: the shortcoming of phosphorus ratio imbalance.In addition; Aerobic Pond, anoxic pond, inside, three pond, anaerobic hydrolysis-acidification pond add the mineral filler (quick-decomposing biological ball) that supplies microorganic adhesion and be beneficial to growth, can realize the sharp separation of muddy water, successfully the residence time in the water (HRT) and sludge retention time (SRT) are separated; Solid retention time prolongs greatly; Can form complete food chain in the technology, through the degraded step by step of mikrobe, thoroughly with the organic pollutant removal in the water.
Beneficial effect: compared with prior art, the utility model has the advantages that:
(1) brownout: sludge dewatering system power consumption every day before the mud decrement, after the decrement 80%-85%, can practice thrift a large amount of energy every day; Be sparing in the use of coal: mud can consume a certain amount of coal in burning process, if after the decrement 80%, can practice thrift 80% coal, save energy; Economize on oil: sewage work's annual outward transport mud, behind the mud decrement, will reduce transportation mud total amount, can practice thrift a large amount of fuel oils like this, ability save energy goods and materials; Simultaneously can reduce a large amount of emission of automobile wastes;
(2) can improve the clearance of pollutent, can subdue mud significantly, can reduce the treatment capacity of pollutent, this has just alleviated the pollution burden concerning society, reduced the deterioration of environment; Because any production can produce Litter or pollution, the minimizing of any production pollutent will be a kind of contribution to entire society;
(3) use quick-decomposing biological ball filler in the system; Can reduce the aeration tank aeration rate, and keep under the situation of the higher absolute mud owning amount of biosystem, can effectively reduce the second pond solid loading and significantly improve hydraulic load; The pond that can improve biological tank holds utilising efficiency, reduces construction investment;
(4) because the mud decrement technology of low working cost makes wastewater treatment steady running, maintenance less equipment, be vital to enterprise; Operation and keep in repair used resource and also can reduce also is a kind of saving to the resource of society.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done explanation further.
As shown in Figure 1, a kind of mud decrement treatment unit of the utility model comprises water inlet pipe 1, anoxic pond 2, Aerobic Pond 3, second pond 4, rising pipe 5, anaerobic hydrolysis-acidification pond 8, sludge pump 9 and mud house steward 10; Wherein water inlet pipe 1, anoxic pond 2, Aerobic Pond 3, second pond 4, rising pipe 5 connect successively; Bottom at second pond 4 is connected with sludge pump 9 through mud house steward 10; Sludge pump 9 is connected with first respectively and goes out sludge pipe 6 and second and go out sludge pipe 7 then; Sludge pump 9 goes out sludge pipe 6 through first and is connected with anoxic pond 2; Sludge pump 9 goes out sludge pipe 7 through second and is connected with anaerobic hydrolysis-acidification pond 8, and anaerobic hydrolysis-acidification pond 8 links to each other with anoxic pond 2.Wherein anaerobic hydrolysis-acidification pond 8 hydraulic detention times are 6-12h, and anoxic pond 2 hydraulic detention times are 18-24h, and Aerobic Pond 3 hydraulic detention times are 12-14h.In Aerobic Pond 3, anoxic pond 2, anaerobic hydrolysis-acidification pond 8, added the quick-decomposing biological ball respectively, dosage is the 65%-70% that holds of pond separately to the quick-decomposing biological ball from the bottom.Sewage flows into anoxic pond 2 from water inlet pipe 1, and then flows into Aerobic Pond 3, and water outlet gets into second pond 4 by pipeline; Water outlet after the processing is by rising pipe 5 outflow systems; 70% excess sludge is squeezed into second through sludge pump 9 and is gone out sludge pipe 7, passes back into anaerobic hydrolysis-acidification pond 8 then and is hydrolyzed, and is back in the anoxic pond 2 through anaerobic hydrolysis-acidification pond 8 back muddy water; 30% excess sludge is directly squeezed into first by sludge pump 9 and is gone out sludge pipe 6, is back to then in the anoxic pond 2.
In the utility model, through adding quick-decomposing biological ball in Aerobic Pond 3, in the treating processes; Water evenly flows with laminar flow mutually in the biological bed; Gas all directions aeration in the ball of wandering about as a refugee forms gas, solid, liquid trinity blended plug-flow, and the microbial film overlay capacity is big and adhere to stable; Make the utilization ratio of oxygen higher, kinetic energy consumption significantly reduces.Do not produce mud, simplified treatment scheme, non-secondary pollution; Because this technology has long flow section suspended substance in the choked flow water body greatly, need not to filter water outlet and can directly reach emission standards; Owing to adopted fixedly filler, thoroughly solved the problem of sludge bulking, and improved the capacity of resisting impact load of system; Owing to have the cutting action of filler, can make the utilization ratio of oxygen be increased to 16% to bubble.
Fill the quick-decomposing biological ball that supplies microorganic adhesion in 8 inside, anaerobic hydrolysis-acidification pond, can realize cracking of mud; And need not triphase separator, living weight is more than the twice of common anaerobic reactor; Cost of investment is low, construction speed is fast.
The utility model can be realized unattended basically; Need not the active sludge cultivation, can hang film voluntarily, microorganism growth is fast, and start time is short, can keep higher biochemical quantity; Little, the reduced investment of floor space, working cost is lower, and level of automation is high, and carrier need not be changed; Aerating system adopts perforated pipe, has solved the perishable difficult problem that needs replacing of aeration head, saves energy consumption, safeguards simple; And affiliated system separates the residence time in the water (HRT) and sludge retention time (SRT), and solid retention time reaches twenties days, helps the growth of nitrifier, and good denitrification effect is arranged; Different with the single biological group of traditional activated sludge process, can form complete food chain in the native system, through the degraded step by step of mikrobe, thoroughly with the organic pollutant removal in the water.
With 70% residual sludge reflux in the second pond 4 to anaerobic hydrolysis-acidification pond 8; Metabolism through the acidication bacterium; Can realize the renewal and the decrement of internal system living matter, the organism of the sludge absorption of having degraded simultaneously etc. reach the purpose to excess sludge reduction.In internal system; The anaerobic hydrolysis-acidification effect discharges mikrobe " liquefaction ", content and is the major cause of mud decrement to organic biological degradation: along with the accumulation of mesostate; Microorganism active is received inhibition, and operation later stage excess sludge reduction mainly is the result of mikrobe endogenous respiration.The acidication effect realizes that mikrobe " liquefaction " comes down to mikrobe is metabolism substrate with death or living microorganism; And the drop of the transformation of microorganism aerobic, anaerobic state and metabolism matrix concentration, the uncoupling metabolism meeting of microorganisms reduces the yield coefficient of mikrobe.This excess sludge reduction system has good mud decrement ability; And anaerobic hydrolysis-acidification, endogenous respiration and uncoupling metabolism are the principal elements that this system realizes excess sludge reduction; These mud decrement factors are present in the whole technology all the time; And interact, influence each other, under different technological conditions, bringing into play different effects, realize the internal system excess sludge reduction jointly.
Specify the beneficial effect of native system below through some embodiment.
Embodiment 1:
Certain sanitary sewage disposal factory every day 5000 tons of water, every day, spoil disposal was 5 tons, wherein the water ratio of mud is 80%; Carry out the economy measuring and calculating by existing service data; The direct operating cost of sludge treatment comprises: the electricity charge, medicament expense, transport charge, landfill are disposed expense, labour cost etc., amount to 400 yuan/ton; Every day 5 tons of mud, wherein the water ratio of mud is 80%, every day sludge disposal expense to use approximately be 2000 yuan;
And employing the utility model: if mud decrement 80%, the expense that is reduces 80%, and every day, the sludge disposal expense can reduce 1600, and disposal costs is about 400 yuan after the decrement.About 600,000 yuan of annual saving, deduction use cost 70-80 was ten thousand yuan in 1 year, and actual delivery was with ten thousand yuan of 10-20 in 1 year.Can save 600,000 yuan every year later on.
Embodiment 2:
Certain dyeing and printing sewage treatment plant, an original cover acidication+Pyatyi aerobic contact oxidation is the treatment process of main body, day output is 2500 tons; Discharge 3 tons of excess sludges every day, sign in this, needing will be on original treatment process basis; Put forward the mark improvement project; To satisfy local higher emission standard, simultaneously, the technology after the rectification only produces a spot of mud.Therefore we change preceding two-stage in the compound aerobic reactor of original Pyatyi into the anoxic section, and third and fourth grade upgrades to the aerobic biochemical bed of wandering about as a refugee, and designs the hydraulic detention time and the quantity of reflux of sewage again.
According to 2500 tons of water sewage work's every day, every day, spoil disposal was 3 tons, and wherein the water ratio of mud is 80%; Carry out the economy measuring and calculating by existing service data; The direct operating cost of sludge treatment comprises: the electricity charge, medicament expense, transport charge, landfill are disposed expense, labour cost etc., amount to 400 yuan/ton.Every day 3 tons of mud, wherein the water ratio of mud is 80%, every day sludge disposal expense to use approximately be 1200 yuan
And employing the utility model: mud decrement 95%, the expense that is reduce 95%, and every day, the sludge disposal expense can reduce 1140, and disposal costs is about 60 yuan after the decrement.About 410,000 yuan of annual saving, deduction use cost 55-65 was ten thousand yuan in 1 year, and 1 year actual delivery can be saved 410,000 yuan later on ten thousand yuan of 14-24 every year.
The above only is the preferred implementation of the utility model; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (5)
1. mud decrement treatment unit; It is characterized in that, comprise that water inlet pipe (1), anoxic pond (2), Aerobic Pond (3), second pond (4), rising pipe (5), first go out sludge pipe (6), second and go out sludge pipe (7) and anaerobic hydrolysis-acidification pond (8); Said water inlet pipe (1), anoxic pond (2), Aerobic Pond (3), second pond (4), rising pipe (5) connect successively; Said second pond (4) goes out sludge pipe (6) through first and is connected with anoxic pond (2); Said second pond (4) goes out sludge pipe (7) through second and is connected with anaerobic hydrolysis-acidification pond (8), and said anaerobic hydrolysis-acidification pond (8) links to each other with anoxic pond (2).
2. mud decrement treatment unit according to claim 1; It is characterized in that; Also comprise mud house steward (10) and sludge pump (9); Said second pond (4) is connected with sludge pump (9) through mud house steward (10), and said first goes out sludge pipe (6), second goes out sludge pipe (7) and be connected with sludge pump (9) respectively.
3. mud decrement treatment unit according to claim 1 is characterized in that, is respectively equipped with biologic packing material in said Aerobic Pond (3), anoxic pond (2), anaerobic hydrolysis-acidification pond in (8).
4. mud decrement treatment unit according to claim 3; It is characterized in that; In said Aerobic Pond (3), anoxic pond (2), anaerobic hydrolysis-acidification pond (8), the volume of said biologic packing material accounts for the 65-70% of said Aerobic Pond (3), anoxic pond (2), anaerobic hydrolysis-acidification pond (8) pool volume respectively.
5. according to claim 3 or 4 described mud decrement treatment unit, it is characterized in that said biologic packing material is the quick-decomposing biological ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204627362U CN202337723U (en) | 2011-11-21 | 2011-11-21 | Sludge reduction treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204627362U CN202337723U (en) | 2011-11-21 | 2011-11-21 | Sludge reduction treatment device |
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| CN202337723U true CN202337723U (en) | 2012-07-18 |
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| CN2011204627362U Expired - Fee Related CN202337723U (en) | 2011-11-21 | 2011-11-21 | Sludge reduction treatment device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565491A (en) * | 2014-10-16 | 2016-05-11 | 中国石油化工股份有限公司 | Activated sludge treatment method and system for wastewater |
| CN107188310A (en) * | 2017-07-18 | 2017-09-22 | 四川理工学院 | It is a kind of to strengthen the method that Anoxic/Aerobic precipitates anaerobic technique mud decrement |
| CN107935297A (en) * | 2017-11-14 | 2018-04-20 | 辛集市东盟制革有限公司 | A kind of energy-efficient Tannery Wastewater Treatment Technology |
-
2011
- 2011-11-21 CN CN2011204627362U patent/CN202337723U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565491A (en) * | 2014-10-16 | 2016-05-11 | 中国石油化工股份有限公司 | Activated sludge treatment method and system for wastewater |
| CN105565491B (en) * | 2014-10-16 | 2018-11-02 | 中国石油化工股份有限公司 | A kind of activated sludge treatment method and system of waste water |
| CN107188310A (en) * | 2017-07-18 | 2017-09-22 | 四川理工学院 | It is a kind of to strengthen the method that Anoxic/Aerobic precipitates anaerobic technique mud decrement |
| CN107188310B (en) * | 2017-07-18 | 2021-06-04 | 四川理工学院 | Method for enhancing sludge reduction in anoxic-aerobic-sedimentation-anaerobic process |
| CN107935297A (en) * | 2017-11-14 | 2018-04-20 | 辛集市东盟制革有限公司 | A kind of energy-efficient Tannery Wastewater Treatment Technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20151121 |
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| EXPY | Termination of patent right or utility model |