CN200967776Y

CN200967776Y - A sewage advanced treatment device without sludge discharge

Info

Publication number: CN200967776Y
Application number: CN200620047265.8U
Authority: CN
Inventors: 江明辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-30
Filing date: 2006-10-30
Publication date: 2007-10-31
Anticipated expiration: 2016-10-30

Abstract

The utility model relates to a sewage advanced treatment unit that no mud discharged, include by the grid preliminary filter, the mediation preliminary sedimentation tank, high concentration aeration tank, the aerobe pond, anaerobism and mud backward flow pond, mud and clarified water separation tank, the function pond that separation tank and discharge pond are constituteed and by the air-blower, the power control mechanism that electric water pump and control valve are constituteed, discharge according to waste water, the characteristic of inclusion pollutant, choose special cultivation for use, have strong adsorption capacity, decompose and the sewage treatment agent of oxidation organic matter ability and good settlement ability, make waste water through the physics preliminary filtration, chemical adjustment pH value, the aeration oxygen suppliment, good oxygen and anaerobism are handled and clarification separation and filtration process, under good oxygen and anaerobism microbial combined action, change the organic matter into microorganism organism and oxidation, the degradation becomes CO₂、H₂O、NH₃And the residual sludge returned to the circulating treatment inside becomes excellent water reaching the standard, and has the characteristics of scientific and reasonable structure, excellent treatment effect, low operation cost and no sludge discharge.

Description

A kind of sewage water advanced treatment apparatus that does not have mud discharging

Technical field

The utility model relates to environmental technology field, and is particularly a kind of in conjunction with the sewage water advanced treatment apparatus that adopts physics, chemistry and biological treatment of sewage technology, no mud discharging.

Background technology

It is big that the trade effluent that present some industry produces has quantity discharged, characteristics such as Pollutant levels height, water surrounding is being caused serious day by day pollution, also destroying the eubiosis of the whole earth, not only have a strong impact on existent environment of people, also hindered the breakthrough development of such industry simultaneously.Though sewage disposal, the problem of preserving the ecological environment have more and more caused the generally attention of all trades and professions at present, have all dropped into a large amount of human and material resources and financial resources in subject study, many achievements in research also occurred.But in the waste water pollution substance mainly contain biology decomposing organic matter, volatile organic matter, be difficult for decomposing organic matter, toxic metal, suspended solids, nutritive salt (nitrogen and phosphorus), pathogenic microorganism and parasitic animals and plants etc.Existing national regulation industrial water pollution thing emission standard mainly is at biochemical oxygen demand (BOD) (BOD5), the clear and definite requirement for restriction that projects such as chemical oxygen demand (COD) (COD), colourity, pH value, suspended substance, ammonia nitrogen, sulfide, sexavalent chrome, copper, phenyl amines, dioxide peroxide are made, therefore how to go to degrade, reduce and control the concentration and the quantity of above these indexs, making it to reach even be lower than the permission emission standard of national regulation, is the major objective of wastewater treatment.

Treatment process commonly used at trade effluent and sanitary sewage mainly contains physical treatment process, method of chemical treatment and biological treatment three major types at present.Physical treatment process mainly is to adopt grid and screen cloth, organic impuritys such as adjusting, precipitation, air supporting, filtering membrane technical finesse suspended substance, cursory thing, fine-fibered; Method of chemical treatment is mainly by dropping into various medicaments in neutralization tank or reaction tank, with methods such as neutralization, coagulation, electrolysis, oxidation, absorption, sterilizations, handle pH value, look refuse matter, colloidal suspended substance, BOD, COD, LAS, fine suspension, larger molecular organics, bacterium etc.; Biological treatment mainly contains two kinds of anaerobic biological treatment method and aerobic biological treatments, wherein: the anaerobic biological treatment method mainly is to utilize flow lifting type anaerobic grain sludge bed, anaerobism coherent film expanded bed, anaerobic fluidized bed, acidication etc., treatments B OD, COD look refuse matter, NH ₃-N and phosphorus; The aerobe facture mainly is to utilize the circulating type active sludge method, absorption regeneration oxidation style, biological contact oxidation process treatments B OD, COD, look refuse matter, NH ₃-N and phosphorus.

Generally speaking, present existing sewage disposal device or system, adopt single physical treatment method, chemical treatment method or bioremediation mostly, though the index of improving some aspect of water quality is had certain effect, but facts have proved all have significant limitation, so the overall process result is not ideal.And these treatment processs early stage Infrastructure and the input of equipment all compare expensively, in the operation process, all need drop into a large amount of medicaments and additive continually, cause operation cost very high; And the pollutent that other are all arranged in the process of disposing of sewage all the time produces, discharge, especially is difficult to a large amount of mud of disposing.Though that some waste disposal plant has is concentrated, oven dry and grind the function of mud, finally all to outwards discharge, no matter be to topple over or buried in underground to the rubbish stockyard, all will be new source of pollution.Therefore, existing sewage water treatment method can't fundamentally be cashed the general requirement of protecting environment, benefiting the people.

Summary of the invention

The purpose of this utility model be to provide that a kind of facility investment is few, running cost is low, it is effective to dispose of sewage, can not only be up to standard even can be lower than emission standard, can also recycle and all non-pollutant discharge, the novelty that can not cause secondary pollution do not have the sewage water advanced treatment apparatus of mud discharging from start to finish.

The sewage water advanced treatment apparatus of the no mud discharging of the utility model method mainly is made up of functional pool and power, pumping and controlling organization, and wherein: functional pool includes grid preliminary filter, mediation preliminary sedimentation tank, high density aeration tank, aerobe pond, anaerobism and mud backflow pool, mud and primary water separate tank, separate tank and the pond of releasing; Power, pumping mechanism include oxygen supply gas blower, electric water pump and control valve.At described anaerobism and mud backflow pool, mud and primary water separate tank, separate tank, releasing is provided with on the pipeline with control valve, is convenient to control the mud that produces in these functional pools and sewage and can be back to reflux in Aerobic Pond or the high density aeration tank between pond and Aerobic Pond or the high density aeration tank; Described grid is provided with grid and screen cloth in the preliminary filter; Water pipe by the band control valve between described mediation preliminary sedimentation tank and the grid preliminary filter is connected; Be provided with the electric water pump that the water pump in the mediation preliminary sedimentation tank can be delivered in the high density aeration tank between described mediation preliminary sedimentation tank and the high density aeration tank; Be provided with the pipeline that is connected between described high density aeration tank and the aerobe pond, the sewage natural in the high density aeration tank is flowed in the aerobe pond; Pipeline between described aerobe pond and first anaerobism and the mud backflow pool is provided with electric water pump; Described anaerobism and mud backflow pool can be provided with as required several, adjacent continuous intercommunication one by one, be provided with the overflow weir of upper edge indentation, nearly bottom in the middle of it and be provided with the mud refluxing opening that the water pipe by the band control valve communicates with aerobe pond and high density aeration tank respectively; Being provided with mud in the middle of described mud and the primary water separate tank induces pipeline, bottom to be provided with back the mud device; Described separate tank, the Chi Yeke that releases be provided with as required several, adjacent continuous intercommunication one by one, nearly bottom is provided with the mud refluxing opening that the water pipe by the band control valve communicates with the aerobe pond; Described releasing is provided with the water pipe of band control valve between pond and the filtering emission pond.In addition, described each functional pool is can layering stacked, be beneficial to dwindle floor space: described grid preliminary filter, mediation preliminary sedimentation tank, high density aeration tank and aerobic biological tank are because volume requires bigger, can dig ground sinking mode and be arranged on lower floor, so that satisfy the volume requirement with increasing degree of depth method; Described anaerobism and mud backflow pool, mud and primary water separate tank, separate tank, release pond and filtering emission pond can be arranged on the upper strata as required, and mud and primary water separate tank can be big relatively.

During work, waste water enters before the mediation preliminary sedimentation tank, earlier through grid and sieve, on the one hand the suspended substance in the pollutent is cut resistance, plays a protective role for the equipment such as water pump assembly in the subsequent processes on the other hand; The waste water that enters in the mediation preliminary sedimentation tank is taken a sample, detect, add the soda acid blender as required, the control pH value is between 6-9: the waste water that enters in the high density aeration tank is taken a sample, detect, selected according to monitoring result, and add in right amount by the special LTC-A series sewage-treating agent of researching and developing of Shanghai connection carbon geochemistry company limited, this treatment agent is pumped in the oxidation biological tank together in company with the waste water in the high density aeration tank, gas blower is respectively to being in harmonious proportion preliminary sedimentation tank, inflate oxygen supply in the waste water of high density aeration tank and oxidation biological tank simultaneously, to make full use of the various microorganisms colloidal in the following waste water of excess oxygen in the waste water, the oxidation operation of solubilised state decomposes, change microorganism body and meta-bolites inorganics CO into ₂And H ₂O, thus make waste water obtain rough purification; Rough purification water after aerobic treatment by power set ceaselessly pumping import in first anaerobism and the mud backflow pool and carry out anaerobic treatment, make in the waste water anaerobion do not have under the situation of free oxygen to organism make hydrolysed ferment, make carbohydrate, protein, fat is converted into monose, amino acid, lipid acid, CO ₂, H ₂Be degraded to methane behind the O, purified waste water relatively and water-insoluble mud, water-insoluble sludge settling is at the bottom of the pond, can be aperiodically be back to reentry in high density aeration tank or the oxidation biological tank and handle ranks in the mode of opening respective valves, purify waste water relatively by the outflow of zig-zag overflow port, by the interconnection mouth send into proceed in second anaerobism and the mud backflow pool anaerobic treatment, and in the same way returned sluge send relative more purifying waste water to next anaerobism and mud backflow pool with overflow; Conflux to clarification separating and filtering district by purifying waste water of sending of last anaerobism and mud backflow pool.Though waste water is through after aerobic, the anaerobic treatment, organic pollutant wherein and nitrogen, phosphorus etc. have obtained handling, but also existing relative density in the water approaches 1, is suspended in the water generally the solid matter that can not remove with the common precipitator method, influence the colourity of water, therefore, design has bigger mud and primary water separate tank in the native system, by the flow velocity of control water and the adsorptive power of gac, the muddy water clarification is separated, discharge after filtration at last or return again and utilize.

The sewage water advanced treatment apparatus that does not have mud discharging based on the utility model of above-mentioned design, because scientifically according to the selected LTC-A series sewage-treating agent that is complementary of the intrinsiccharacteristic of processed waste water, in conjunction with having adopted physics, chemistry and the bioremediation that adapts with it, and reasonably be provided with effective treatment facility, obtained very significant wastewater treatment efficiency.General difficult biological oxygen demand BOD up to standard in sewage disposal just at present, chemical oxygen demand COD, ammonia nitrogen and petroleum-type index, it is 100mg/L that COD state decides safe level, can guarantee＜70mg/L with the measured value after the utility model method and the device processing thereof, it is 30mg/L that BOD state decides safe level, can guarantee＜15mg/L with the measured value after the utility model method and the device processing thereof, it is 15mg/L that ammonia nitrogen state decides safe level, can guarantee＜10mg/L with the measured value after the utility model method and the device processing thereof, it is 10mg/L that petroleum-type state decides safe level, and the measured value after handling with the utility model method and device can be guaranteed＜5mg/L.Therefore all can reach the permission emission standard that index is starkly lower than national regulation, and all indexs can be simultaneously up to standard, and this is that existing other treatment processs are more inaccessible; Owing to adopted inner mud reflux cycle treatment technology, inner mud is played one's part to the full in aerobic and anaerobic environment, do not become refuse, therefore, in the whole process that entire sewage is handled, do not have any mud discharging from start to finish, this is that all so far waste disposal plants all can't be realized; The waste disposal plant scientific structure that employing the utility model method is provided with and reasonable, the structure formation of lamination layout characteristic and adjacent setting about the employing functional pool, both helped reducing floor space, in return-flow system, do not increase power set again in addition, can directly control and finish reflux cycle, thereby also help save energy by valve; Because device itself is rational in infrastructure, so additional facilities seldom, early investment cost and day-to-day maintenance are all very low, in daily operation, have only a gas blower and two water pumps in work, so power consumption seldom, and according to the monitoring result of water sample being added special-purpose LTC-A series sewage-treating agent, usually above just need of two weeks added once, so daily administration and running cost are all very low, compare with the running cost of other treatment processs commonly used of prior art, can reduce over half at least.Therefore, it is that feasible and reliable, structure is a science and rational that the sewage water advanced treatment apparatus that utilizes the utility model not have mud discharging is handled trade effluent and sanitary sewage method, thereby has tangible technical advance, very strong practicality and better market prospect.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the workflow diagram of the utility model embodiment.

Among the figure:

1. grid preliminary filter 2. is in harmonious proportion preliminary sedimentation tanks 3. high density aeration tanks

4. aerobe pond 5. anaerobism and mud backflow pool 6. mud and primary water separate tank

7. release pond 9. grids and screen cloth of separate tank 8.

10. overflow weir 11. mud refluxing openings 12. oxygen supply blast inlets

Embodiment

Below in conjunction with accompanying drawing and exemplary embodiments the utility model is further described.

In Fig. 1 and Fig. 2, the present invention does not have the sewage water advanced treatment apparatus of mud discharging and mainly is made up of functional pool and power, pumping and controlling organization, wherein: functional pool is fastened down the stacked arrangement form, includes grid preliminary filter 1, mediation preliminary sedimentation tank 2, high density aeration tank 3, aerobe pond 4 that is positioned at lower floor and the anaerobism that is positioned at the upper strata and mud backflow pool 5, mud and primary water separate tank 6, separate tank 7, the pond 8 of releasing; Power, pumping and controlling organization include oxygen supply gas blower, electric water pump and control valve.Be provided with grid and screen cloth 9 in the described grid preliminary filter 1; Water pipe by the band control valve between described mediation preliminary sedimentation tank 2 and the grid preliminary filter 1 is connected; Be provided with electric water pump between described mediation preliminary sedimentation tank 2 and the high density aeration tank 3; Be provided with the water pipe of band control valve between described high density aeration tank 3 and the aerobe pond 4; Water pipe between described aerobe pond 4 and first anaerobism and the mud backflow pool 5-1 is provided with electric water pump; Described anaerobism and mud backflow pool 5 are provided with 5 5-1,5-2,5-3,5-4 and 5-5, adjacent continuous intercommunication one by one, are provided with the overflow weir 10 of upper edge indentation, nearly bottom in the middle of it and are provided with the mud that the water pipe by the band control valve communicates with aerobe pond 4 and high density aeration tank 3 respectively and reflux 11; Being provided with mud in the middle of described mud and the primary water separate tank 6 induces pipeline, bottom to be provided with back the mud device; Described separate tank 7 is provided with 3 7-1,7-2 and 7-3, adjacent one by one continuous intercommunication, the described pond 8 of releasing is provided with 2 8-1 and 8-2, adjacent one by one continuous intercommunication, release pond 8-1 and the adjacent intercommunication that links to each other of separate tank 7-3, nearly bottom are provided with the mud refluxing opening 11 that the water pipe by band control valve 7 communicates with aerobe pond 4 respectively; The clean water discharge outlet in the described pond 8 of releasing is provided with control valve; Be provided with the oxygen supply blast inlet 12 of gas blower on the sidewall in described mediation preliminary sedimentation tank 2, high density aeration tank 3, aerobe pond 4.

During work, the utility model does not have the sewage water advanced treatment apparatus of mud discharging, comprehensive utilization physical treatment method, chemical treatment method and bioremediation, according to discharged waste water, the intrinsiccharacteristic of contaminated wastewater thing, but select the LTC-A series sewage-treating agent by the special research and development of Shanghai connection carbon geochemistry company limited of adapted with it, establish the grid preliminary filter 1 of grid and screen cloth 9 in being provided with, adjust the mediation preliminary sedimentation tank 2 of control pH value, with the gas blower is the main aeration apparatus of oxygen supply that constitutes, create the aerobe pond 4 of Working environment for aerobic quasi-microorganism, create the anaerobism and the mud backflow pool 5 of Working environment for the anaerobism quasi-microorganism, with mud with than isolating mud of clean water and primary water separate tank 6, the separate tank 7 and the pond 8 of releasing, workflow is as follows:

(1) just filter waste water is accepted physical treatment earlier in the grid preliminary filter 1 that is provided with grid and screen cloth 9, removes impurity such as suspended substance, floating matter and fine-fibered wherein;

(2) adjust pH value be in harmonious proportion sampling in the preliminary sedimentation tank 2, detect, select the suitable medicament of adding, in and waste water, pH value is controlled between the 6-9, and establishes aerator, make it abundant oxygen supply and stirring.

(3) the aeration oxygen supply is by the intrinsiccharacteristic of gas blower to the 3 abundant oxygen supplys of high density aeration tank, sampling and measuring waste water, and selects and drop into the LTC-A series sewage-treating agent that is complementary according to this;

(4) aerobe is handled by gas blower powerful inflation oxygen supply in aerobic biological tank 4, warp contained in the waste water cultivate specially, have strong adsorptive power, by force decompose and " the LTC-A series sewage-treating agent " of oxidation of organic compounds ability and good sedimentation capacity in aerobic microbiological under the condition of suitable living environment and sufficient oxygen, be foodstuff with the organism in the waste water, and change these organism into the microorganism body and oxygenolysis is an inorganics;

(5) anaerobic biological treatment imports the preliminary clean water after aerobic treatment in anaerobism and the mud backflow pool 5, makes the anaerobion in the preliminary clean water not carry out anaerobic degradation, become CO organism in having the environment of free oxygen ₂, H ₂O, NH ₃Deng and excess sludge, excess sludge is back in aerobe pond 4 or the high density aeration tank 3 through reflux, participates in handling again;

(6) clarification separate with filter to the relative density of after anaerobic biological treatment, sending than contained in the clean water approach 1 suspended substance mud and primary water separate tank 6 in by charcoal absorption, clarification separates after the separate tank 7 and pond 8 after-filtration of releasing are sent complete water up to standard, filter residue is back to processing again in the grid preliminary filter 1.

Claims

1. A sewage advanced treatment device without sludge discharge, consisting of a functional pool and power, pumping and control mechanisms, characterized in that:

a. Functional pools include grid primary filter (1), reconciling primary sedimentation tank (2), high-concentration aeration tank (3), aerobic biological pool (4,) anaerobic and sludge return tank (5) , sludge and clarified water separation tank (6), separation tank (7) and discharge tank (8), the power and pumping control mechanism includes an oxygen supply blower, an electric water pump and a control valve;

B. grille and screen cloth (9) are arranged in the described grille primary filter (1);

c. the described reconcile primary sedimentation tank (2) and the grid primary filter tank (1) are connected by a water pipe with a control valve;

d. An electric water pump is arranged between the reconciling primary sedimentation tank (2) and the high-concentration aeration tank (3);

e. a water pipe with a control valve is arranged between the high-concentration aeration tank (3) and the aerobic biological tank (4);

f. The water pipe between the aerobic biological pool (4) and the first anaerobic and sludge return pool (5-1) is provided with an electric water pump;

g. The anaerobic and sludge return pools (5) are closely connected one by one, and are provided with overflow weirs with sawtooth-shaped upper edges in the middle, and water pipes with control valves are provided near the bottom to communicate with each other respectively. The sludge return port (11) connected to the oxygen biological tank (4) and the high-concentration aeration tank (3);

h. The middle of the sludge and clarified water separation tank (6) is provided with a sludge induction pipeline, and a sludge return device is provided at the bottom;

i. The separation pools (7) are closely connected one by one, and the bottom is provided with sludge return ports (11) that are respectively communicated with the aerobic biological pool (4) through water pipes with control valves;

j. The discharge pools (8) are closely connected one by one, and the discharge pools (8-1) and the separation pools (7-3) are closely connected to each other. The sludge return port (11) connected to the oxygen biological pool (4);

k. a water pipe with a control valve is arranged between the discharge pool (8) and the filter discharge port;

l. The side walls of the reconciling primary sedimentation tank (2), the high-concentration aeration tank (3), and the aerobic biological tank (4) are all provided with oxygen supply air inlets (12).

2. The sewage advanced treatment device without sludge discharge according to claim 1, characterized in that said functional pools are arranged in layers up and down, grid primary filter (1), reconciling primary sedimentation tank (2) , high-concentration aeration tank (3) and aerobic biological tank (4) are located in the lower layer, anaerobic and sludge return tank (5), sludge and clarified water separation tank (6), separation tank (7) and discharge tank (8) Located on the upper floor.