CN102249479A - Sewage treatment facility and process - Google Patents
Sewage treatment facility and process Download PDFInfo
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- CN102249479A CN102249479A CN 201110121846 CN201110121846A CN102249479A CN 102249479 A CN102249479 A CN 102249479A CN 201110121846 CN201110121846 CN 201110121846 CN 201110121846 A CN201110121846 A CN 201110121846A CN 102249479 A CN102249479 A CN 102249479A
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Abstract
The invention discloses an active sludge sewage treatment facility, which consists of an anoxic reaction chamber, an aerobic reaction chamber and a filtering and clarifying chamber communicated in sequence. Sewage is mixed with a large amount of active sludge reflowing from the filtering and clarifying chamber and flows into the aerobic reaction chamber after entering the anoxic reaction chamber. In the aerobic reaction chamber, a large quantity of bacteria, epiphytes and microorganisms are metabolized into suspended objects under the actions of aeration, oxidation and decomposition. The sludge inlet of the filtering and clarifying chamber is used for controlling the sludge current flowing in from the aerobic reaction chamber. The bottom of the filtering and clarifying chamber is provided with a sludge outlet which is used for making the sludge reflow into the anoxic reaction chamber and be mixed with sewage entering the anoxic reaction chamber for starting a new cycle of treatment procedure which is the same as the process. Purified water flows out of a purified water overflowing weir on the top of the filtering and clarifying chamber. The active sludge sewage treatment facility has a compact structure, a small occupied area and good energy saving and emission reduction effects, and can be widely applied to various sewage treatment industries, in particular to a large quantity of middle-small cities, development areas, dispersive towns, tourist attractions and the like.
Description
Technical field
ASBF of the present invention is used for the sewage disposal aspect, specifically, is an a complete set of facility and a kind of method that improves wastewater treatment efficiency
Technical background
99% of existing water reserve is Hai Shui and the Very ground ice that displeasant Class utilizes on the earth, and its I 1% is also mostly on the stratum below 800 meters, and the water of the rivers and lakes that people's existence is relied on only accounts for 0.01% of total amount.Whole world Freshwater resources are shortage but also regional distributed pole imbalance not only.
China is because unprecedented development at full speed and not enough to the consciousness of environment protection, numerous in addition populations to water resources heavy demand and sewage discharge, at present, China has faced very severe shortage of water resources.Middle circle is the heavy Dan Shui Capital source Total of Country family amount As 28000 billion cubic meters of a Ge lack of water Yan, 6% of Accounting full Qiu Shui Capital source, occupy the 4th in the world, but have only 1/4 of 2300 cubic metres of Only As world average levels per capita, 1/5 of beautiful Country, rank the 121st in the world, be one of weary Country family of the Poor in the equal water Capital of global 13 Ge people source. button removes Difficult with the flood Trail stream that utilizes and stroll water Capital source Hou under the ground of speed ground District partially, and middle Country measures The still less in the existing available light water Capital of Real source, about Only As 11000 Hundred-million cubic meters, can utilize 900 cubic metres of Shui Capital Yuan Approximately As per capita, Asia and its Fen Fabric Very imbalance, to 20 Shi Ji ends, there is insufficient water Ask topic in the existing city of Ge more than 400 in complete more than 600 city of Country, wherein connect 110 Ge, the about 60 Hundred-million cubic meters of full Country urban water shortage Total amount As Bi the heavy lack of water city of More Yan.
According to monitoring, the underground water in national most cities is subjected to a certain degree point-like and planar pollution at present, and the trend that increases the weight of is year by year arranged.The water that is on the rise pollutes the functions of use that has not only reduced water body, also further aggravated the contradiction of shortage of water resources, the strategy of sustainable development of implementing for China is brought and is had a strong impact on, and also serious threat is to city resident's safe drinking water and the people's health.Many rivers in the whole nation are by the trade effluent severe contamination; Municipal effluent, rainwater, the industrial sewage fusion of a spot of high density seriously causes the overload operation of existing sewage work, the just process primary treatment that has, the directly discharging of not processing that has; Also have eutrophication problem, cause ecotope unbalance.Sewage work's ageing equipment that six the seventies are built and built that sewage work carries that mark transformation requires urgently, Sewage Plant and pipe network fraction of coverage deficiency, sewage treating efficiency has much room for improvement, the difficulty that the construction of sludge treatment disposal facility seriously lags behind, municipal pollution has been aggravated rural area pollution processing to transfer of rural etc.
Existing sewage treatment process comprises substantially: physics method, chemical method, physico-chemical processes; Biological process; Natural law and sludge treatment equipment.And in the most frequently used sewage treatment process of fundamental sum, biological process and biological process+membrane technique are comparatively popular.The latter is for water in reaching utilizes again, thereby cost is higher.
With regard to general and the most the most frequently used biological process, as traditional oxidation ditch biological treatment (afterwards abbreviating oxidation ditch as), A2/O, mud-water separation is normally because gravity separation precipitation from top to down overflowing very long precipitation of mud and water.This sedimentary definition is to add the intermediate processing that is attracted mud by action of gravity after wanting active sludge to be imported the clarifying chamber earlier.
The main existing problems of these methods are:
First deficiency:
1. require huge filtering-depositing pool area, whether size is determining can have enough places to precipitate.And the entire sewage treatment process needs the aeration tank, facilities such as anaerobic pond and filtering settling pond, and therefore overall civil engineering area is very huge;
2. need the time to precipitate, filter and separate;
3. because in circulation technology, the sludge quality of generation is not high, and mud not necessarily will precipitate, mud is understood floating or is suspended in the clear water, and the quality of clear water is just muddy;
4. conventional, because concentration of activated sludge is lower, the growing amount of sludge garbage has increased widely, this will increase follow-up processing cost.
Second deficiency: traditional arts demand drops into more equipment, thereby consumes the considerable energy, causes more operations staff to participate in.The picture oxidation ditch, BAF (quick-fried gas biological filter facture) and MBR (membrane biological reaction method), they need stirrer, the aerator of high flow rate electric power, the gravity pump of big machineryization, and especially BAF more needs to add backwashing pump, regularly the filtering-depositing system is washed.
Thirdly not enough: aspect Water reuse and recovery, because the filtration of some technologies clarification separating effect is not very high, as BAF (quick-fried gas biological filter facture), SBR (preface is amassed the formula activated sludge method) and MBR membrane-biotechnology, they require:
1. the ubiquity sewage disposal device is many, and expensive equipment price, causes the operation power consumption big, and needs are round-the-clock, 1 year 365 days operator work without cessation.MBR membrane process height especially be unable to do without round-the-clock Computerized monitor system especially.
2.MBR membrane process and SBR (preface is amassed the formula activated sludge method) need add chemicals to Sewage treatment systems, have improved operation cost.MBR need add medicine and melt dirt the stifled thiophene of membrane filtration net is improved filter effect; And SBR, in order to improve sedimentation effect, need add medicine falls nitrogen, increases unnecessary filter plant dephosphorization.
The 4th deficiency: some sewage treatment process often need be in the pass, open state in working cycle.
1. as BAF technology, often need operator regular sand filter is carried out counterflush;
2.MBR need operator every day the membrane filtration net to be cleaned;
3.SBR technology has only a pond, then need wait in each sewage disposal working cycle: wait and be filled with sewage, wait sedimentation and filtration, wait water purification discharging, wait idle.
In sum, in order to maximize favourable factors and minimize unfavourable ones,, reach the needs that improve energy-saving and emission-reduction in order to find sewage treatment process that is fit to China's actual conditions and the requirement that improves environmental protection and Sustainable development, for the rapid rising of current small and medium-sized cities and the trend of urbanization of villages, and vast outlying tourist attractions, hotel, Industry Development Area, the holiday village, sanatorium, the needs of country villa and airport sewage disposal, so innovative technology then seems more important.It should possess following primary condition:
1. the nitrification and denitrification of nitrogen dephosphorization efficiently falls;
2. the efficient degradation organism is removed the particle in the sewage and is reduced TSS (total suspended particles) and COD (chemical oxygen demand (COD)) index;
3. efficient, novel, economic and practical, construction investment is few, and the equipment less investment is taken up an area of little and the low direction of running cost develops;
4. efficient water recovery and reuse;
5. outlying small and medium-sized cities, the small towns, the rural area, tourist attractions, agricultural, the sewage in development area etc. reclaims and utilizes;
6. systematize, mass-producing and modular developing direction:
7. satisfy existing aging, the sewage work of huge power consumption carries out site technology transformation and ultralow energy-saving run.
Summary of the invention
Outmoded for solving the existing at present sewage disposal device of China, treatment effect is undesirable, can not satisfy the problem of environmental requirement far away, and the present invention proposes a kind of new biochemical technology that utilizes and carries out the facility and the treatment process of sewage disposal.
The present invention proposes a kind of ASBF (activity) mud and sewage treatment facility and technology.
The structure of its mud and sewage treatment facility is:
The present invention is a rectangular parallelepiped pond, is combined by three parts: a) hypoxia response chamber, and the hypoxia response chamber is provided with sewage water inlet pipe; B) aerobic reaction chamber that is communicated with the hypoxia response chamber; C) the filtration clarifying chamber between hypoxia response chamber and aerobic reaction chamber.First interface of filtering the clarifying chamber is between hypoxia response chamber and filtration clarifying chamber, is filtering between clarifying chamber and the aerobic reaction chamber at second interface, the 3rd interface and vertical vertical connection of first and second interfaces, and partition distance between the shell in rectangular parallelepiped pond is as the throat that connects hypoxia response chamber and aerobic reaction chamber.The shell of described three interfaces and the other side and bottom surface constitute jointly filters the clarifying chamber.First interface and second contact surface all slope inwardly from top to bottom, make the longitudinal cross-section of filtering the clarifying chamber be trapezoidal.One or several mud inlets are arranged below the second contact surface in filtering the clarifying chamber, be used for the mud of aerobic reaction chamber is imported the filtration clarifying chamber.Hypoxia response of the present invention chamber is provided with an activity sludge reflux device, this device is: be positioned at filtration bottom, first interface, clarifying chamber and be provided with a sludge outlet, sludge outlet connects the activity sludge reflux pipe of a feeding hypoxia response chamber, the input that is used for circulating flows into the returned sluge of hypoxia response chamber from the filtration clarifying chamber, and derives unnecessary mud simultaneously to outside mud storage room.Filter top, clarifying chamber and be provided with one group of baffle plate diversion trench, hold back and collect all buoyant suspending sundries.Be separated with clear water in the middle of the baffle plate diversion trench and overflow the weir, come the clean clear water after outside exhaust filtering is clarified.Outer at the sewage inlet that filters second contact surface bottom, clarifying chamber, be positioned at bottom, aerobic reaction chamber, fixedly be equipped with a bubble baffle plate and stop that bubble enters the filtration clarifying chamber.
Two main contrive equipments of this technology are: be positioned at the baffle plate that stops bubble of bottom, aerobic reaction chamber, it has controlled the air of aerobic reaction chamber to filtering the surging force of clarifying chamber's Sludge Bed; One group is positioned at the baffle plate diversion trench that filters top, clarifying chamber, and it controls and collected institute automatically might swim in lip-deep scum silica frost of water purification and foreign material.
Treatment process of the present invention:
The ASBF invention is that a kind of the filtration through hypoxia response chamber, aerobic reaction chamber, filtration clarifying chamber and active sludge bed clarified the process sewage flow process.After sewage enters the hypoxia response chamber, after a large amount of active sludge that filter clarifying chamber's backflow mix, flow into the aerobic reaction chamber by the throat that connects hypoxia response chamber and aerobic reaction chamber.
Indoor at aerobic reaction, a large amount of bacteriums, fungi and little (former) give birth to (moving) thing and close under the effect of decomposition in aeration, oxidation, the large amount of organic of eating rapidly, fast by aeration metabolism formation levitated object, the polysaccharose substance of the stickiness shape that the back of bacterium secretion just forms, the active sludge (wadding mud suspends) that promptly has huge surface area.Suspension is wadded a quilt with cotton mud by one below the aerobic reaction chamber or several mud inlet importing filtration clarifying chambers.
In filtering the clarifying chamber, this improved method for clarifying and separating is the filter bed sewage treatment process that forms to upper reaches reinforcement active sludge.Owing to filter the structure that trapezoidal longitudinal that the clarifying chamber has is upwards widened gradually, the V-type action of gravity that it is unique, import vertically upwards the successively decrease strength of water impact sludge filtration bed of mud from filtering the bottom, clarifying chamber, simultaneously the Sludge Bed of high density is adsorbed apace and is filtered mud thing to the upper reaches, and make it increase thickness, thereby quickened filtration, precipitation and clarifying effect, make the good oxidation of tool, decomposing organic matter and good cohesion, the active sludge of sedimentation function adsorbs suspended substance and the filtering-depositing in the sewage at short notice fast, between the floating body or floating floss flock together and generate group.When the weight of dough greater than the vertical speed raising force strengthen gradually at the section that makes progress owing to filter the clarifying chamber, dough upwards reduces thereupon gradually, they drop to the bottom of filtering the clarifying chamber; Form best, desirable, filtration downwards longitudinally, finished the sewage purification operation.And exclusive trapezoidal longitudinal cross section area has increased the formation of mud-water separation spatial, thereby reach limpider water purification after filtration the clear water of top, clarifying chamber overflow weir flow and go out, most of thickened sludge of absorption and post precipitation is back to the hypoxia response chamber through the activity sludge reflux pipe to be mixed with the sewage that enters the hypoxia response chamber, begins the new round circular treatment operation identical with above-mentioned technology again; The unnecessary mud that while activity sludge reflux pipe will be collected is transported to outside mud storage room.
The main points of the invention:
One, on its reasonable process that the compactedness of ASBF invented technology, science show
1, special trapezoidal device filters three interfaces and hypoxia response chamber of clarifying chamber, the aerobic reaction chamber is shared and separated, and forms three very compactnesses, the cuboid container of independently separating again.Reduced the civil engineering area,, compared, filtered the size of clarifying chamber and can save 50% with existing traditional gravitational settling method owing to filter the handiness that the clarifying chamber distinguishingly has super large, overload, excess load;
2, because this invention had not only communicated with one another, but also condition each other integrated, need the time to precipitate unlike traditional gravitational settling;
3, changing traditional gravitational settling mode to upper reaches Sludge Bed filtering type sewage treatment process, is the filter bed technology that forms to upper reaches reinforcement active sludge.Because the trapezoid unique design, it vertically reduces the strength that upward water flow impacts the active sludge filter bed, improves the speed of mud all one's effort, quick precipitation downwards, absorption simultaneously, and the more and more thicker Sludge Bed of formation.Its oneself control and the best of forming, ideal, the vertical flow process of sedimentation and filtration clarification downwards, add the make progress design of broadening of trapezoidal longitudinal cross section area and increased the mud-water separation spatial again and form.Thereby reach the limpider water purification overfalling weir outflow of top, clarifying chamber after filtration;
4,, and produce still less sludge garbage because the circulation more repeatedly of mud-water separation effect and high quality, high density high compression active sludge and mix repeatedly with the sewage of hypoxia response chamber.
Two, the ASBF invented technology is integrated, validity, and saving type and compactedness only need the auxiliary operation of least equipment.Exclusive, compact design, the replacing of minimum movable part and modular construction only need limited stirrer, air aeration device (not being the pump of power consumption), thereby need seldom power consumption, minimum operation personnel and minimum running cost.Compare with traditional sewage treatment process, facility investment reduces more than 30% at least; Operator reduce more than 50% at least; Compare aspect energy consumption: compare with oxidation ditch process, energy efficient is more than 30% at least; Compare with SBR technology, energy efficient is more than 60% at least; Compare with the MBR membrane process, running cost is saved more than 50% at least.
Three, nature has been created in the ASBF invention, the model of green environmental protection model
In the operating process,, just can reach efficiently to denitrogenate and fall the phosphorus effect because self-control and control do not need to add any chemicals.Reduce COD (chemical oxygen demand (COD)) with active sludge, remove TSS (total particle suspended substance) and biological carbon and phosphorous removal method and remove nitrogen (N), ammonia nitrogen (NH3), the sewage water treatment method of phosphorus (P) can be removed these nutrition in the sewage disposal mode of nitrification and denitrification.In the nitrifying process of aerobic reaction chamber, as catalyzer, with nitrogen, ammonia converts nitrate and nitrite to micropopulation; In the denitrifying process of hypoxia response chamber, equally with micropopulation as catalyzer, with nitrate, nitrite changes into nitrogen, simultaneously, has also reached the effect of falling phosphorus.Sewage is in aeration and the treating processes under the competent residence time, and COD has also just lowered.TSS has been filtered out in filtering the clarifying chamber.Some discharge indexs are: COD≤25mg/L, TSS are≤10mg/L TN (total nitrogen)＜10mg/L, TP (total phosphorus)＜1mg/L, NH3＜10mg/L.
Four, ASBF invention control is mutually worked in coordination again; Interdepend, relatively independent again; Automatically regulate and oneself's control, it needs round-the-clock Computerized monitor system unlike membrane process, and this not only saves facility investment, and has saved a large amount of running costs.Sophisticated, the research and development history and the example that had five, 60 years prove, if the owner need reach Water reuse and recovery, the advantage of its maximum is with minimum film device, and water is recycled in just reaching.
Five, the ASBF invention does not exist frequent needs to be in the pass, opens state, its automatic adjusting and oneself's control have reached best running status, the most easy operating method, almost seldom chance generates mud group and emerges in any corner, thereby can produce the consequence that may impact or reduce destruction active sludge bed still less.
Six, ASBF has invented the trapezoidal device of unique core technology-filtration clarifying chamber
Filter the design of the exclusive ladder type in clarifying chamber itself, provide hydraulic pressure flexible, the flexible flow pattern and the adaptation of effluent cycle when being easy to hold the peak and processing self-control change higher flows.When at peak flow the time, Sludge Bed improves, and sewage is filtered and clarifies; When at low flow the time, Sludge Bed will fall low automatically, and sewage is filtered and clarifies.Thicker Sludge Bed generates bigger filtration area, increases to filter clarifying effect.
Seven, ASBF has invented baffle plate and other device of two uniquenesses
The bubble baffle plate: the active sludge bed needs a large amount of oxidation sewage backflows to keep high-concentration activated sludge.The bubble that the bubble baffle plate has stopped the aerobic reaction chamber flows into sewage and filters the clarifying chamber, sewage is entered from the bottom equilibrium of aerobic reaction chamber filter the clarifying chamber, adsorbs fast and filters clarification.
The baffle plate diversion trench: it is positioned at the top of filtering the clarifying chamber, before the clear water discharging after clarification, one group of baffle plate diversion trench device is arranged, and it is to stop and collect automatically to swim in the scum silica frost that filters the top, clarifying chamber,
The mud retrieving arrangement: it places hypoxia response indoor, connects the mud that filters the bottom, clarifying chamber and reclaims mouth; After filtering the sludge settling in the clarifying chamber, by boost pump, the return valve of most of mud on the mud recovery tube imports the hypoxia response chamber, and remaining mud then imports outside mud storage room by another valve.
Filter the passage of back, clarifying chamber: the shell that filters clarifying chamber and cuboid container constitutes the circulation road of the narrow sewage mixed solution of hypoxia response chamber and aerobic reaction chamber.
Eight, the ASBF invention also has further feature as follows:
1, ASBF invented technology and traditional sewage water treatment method compare, and do not require and do more pre-treatment, and only before this device, place a filtering net and get final product, if for big sewage work, also be before the upstream reaction device, the increase desanding system.
2, own modularization and the more flexible design selection of ASBF invention makes the owner design and to build according to development program, saved the early stage input of fund greatly.And can be according to the size at scene, the particular case of project and needs select multiple different material to come design and installation.More can utilize existing reaction tank, aging, running cost sewage work high, that can not effectively work and run well are renovated, save investment and time, after building up, save follow-up working cost again.
3, the example of ASBF invention proves that sewage work can run well voluntarily in the very big interval of natural temperature, and temperature can be at subzero more than 30 degree to more than 30 degree intervals, and operation conditions is good.
4, the ASBF invention produces seldom peculiar smell and stink.The aeration appropriateness of aerobic reaction chamber is that oxidation fast takes place for various bacteriums and organism, eats, and the performance and the sludge age that have changed sewage reach 25-25 days, so sewage work can build in from the very near place of resident.
Sum up:
It is described to sum up to state technical process, and the ASBF invention is a kind of novel integrated Sludge Bed biological treatment.Its invention has solved many difficult point problems of industry.Only depend on this art breading, the clear water index of filtering after clarifying is COD (chemical oxygen demand (COD))≤25mg/L just, and TSS (total suspended particles) is≤10mg/L TN (total nitrogen)＜10mg/L, TP (total phosphorus)＜1mg/L, NH3 (ammonia nitrogen)＜10mg/L.If the minimum film group device of follow-up adding more can reach Water reuse.
This technology integrates anoxic, aerobic and upward flow Sludge Bed is filtered the clarifying chamber, and compact construction, operation easily, cost of investment is low, floor space is little.
In filtering the clarifying chamber, special trapezium-shaped device has the handiness of super large, overload, excess load, compares with existing traditional gravitational settling method, filters clarifying chamber's size and can save 50%, but do not reduce the discharge of sewage, improve the sewage load of peak period on the contrary.
Energy-saving and emission-reduction: because this invention had not only communicated with one another, but also the technical process that conditions each other, it has formed efficiently, the active sludge of high density, high absorption property, high sedimentation function, and equipment utilization is few, more do not need Computerized monitor system, and running cost is low;
Because the oneself of process system is efficient, the circulation repeatedly of active sludge and utilizing again, the lengthening of sludge age, and generation is still less, highly enriched sludge garbage has reduced the processing cost of follow-up mud;
Because the oneself of process system is efficient, (in treating processes) need not to add any chemicals, efficient degradation COD, and the nitrogen dephosphorization falls in TSS, thus the water purification of isolating high cleanliness comes;
Flexible operation, be convenient to modularization, producing in serial form, can increase by stages according to owner's fund limit;
Be very easy to the sewage work of existing, aged, malfunction is transformed; Multiple material is selected (cement, steel plate, PVC or glass reinforced plastic); But equipment is domestic procurement all, saves foreign exchange.
This device can be widely used in various sewage treatment industries (residential building, city municipal administration, commercial and industrial), particularly vast small and medium-sized cities, development area, vast, dispersive small towns, tourist attractions etc.
The practical feature of ASBF invention:
1, three biological respinse chambers of collection are one
2, compactness is simplified the civil engineering scale that reduced
3, all biological respinses are one, therefore have result efficiently
4, because own medelling can chase after and build by stages, shorten the time of investing operation
5, can be prefabricated in the factory, install at the scene easilier, the engineering time is short, saves artificial.
Filter the special ladder type shape of clarifying chamber:
1, activated sludge concentration height has prolonged the life-span of mud and has shortened the filtering-depositing time;
2, improve filter effect, increase the filtration area of mud, reduce bottom, filtration clarifying chamber and go into the impact of current Sludge Bed;
3, owing to the processing set-up of succinct necessity, active sludge evenly enters receiving fast of filtration clarifying chamber and precipitates, and rapidly precipitating sludge is evenly imported to the hypoxia response chamber, and having into has;
4, owing to trapezium-shaped, the sewage load of each reaction chamber has been improved at trapezoidal interface;
5,, reduce the sludge garbage growing amount and increased more peace and quiet water owing to trapezium-shaped.
Exclusive process unit:
1, the air admission that stops bubble plate resistance retaining aerobic reaction chamber filters the clarifying chamber, improves the optimum value of mud-water separation;
2, filter the baffle plate of clarifying chamber's internal upper part and receiving tank collected might swim in foreign material on the water surface;
3, the multiple function of mud return line: collect mud, return the hypoxia response chamber, remove unnecessary mud to outside mud storage room.
Operation:
1, facility investment is few, energy-conservation consumption, and the domestic procurement relevant device is saved foreign exchange;
2, requirement operator still less save running cost;
3, oneself's control, running voluntarily;
4, do not need complicated pretreatment;
If 5 coact with film treater technology, can reach Water reuse effectively;
6, improve the height dehydration of mud, reduce the mud growing amount, reduce follow-up investment.
Other
1, no stink because system constantly carries out oxidation to sewage, can be built the sub-district of living apart from the resident in;
2, be more suitable for outlying area, rural area, the sewage disposal of small towns and vast small and medium-sized cities;
3, efficient degradation COD, TSS, N﹠amp; P;
4, multiple material is selected;
5, existing old factory and the bad Sewage Plant of operation conditions are transformed, save a large amount of duplicate construction;
6, be widely used in industry, municipal administration, city, small towns and water and treat agricultural waste.
Description of drawings
Fig. 1: A-A is vertical sectional elevation of the sewage treatment facility at interface among Fig. 2,
Fig. 2: the vertical view of mud and sewage treatment facility of the present invention,
Fig. 3: B-B is the aerobic reaction chamber sectional elevation at interface among Fig. 2,
Fig. 4: C-C is the filtration clarifying chamber sectional view at interface among Fig. 2,
Fig. 5: D-D is the hypoxia response chamber sectional view at interface among Fig. 2,
Fig. 6: facility 3 D stereo synoptic diagram of the present invention.
Parts mark among the figure:
1. shell, 2. hypoxia response chamber, 3. agitator, 4. aerobic reaction chamber, 5. aerator 6. filters the clarifying chamber, 7. the mud inlet, 8. clear water overflows the weir, 9. activity sludge reflux pipe, 10. sewage water inlet pipe, 11. the mixing liquid liquid level, 12. baffle plate diversion trenchs, 13. bubble baffle plates, 14. first interface, 15. second contact surfaces, 16. the 3rd interfaces, 17. import the mud valve, 18. derive mud valve, 19. sludge outlets.
Embodiment
Specific examples is in conjunction with the accompanying drawings invented ASBF and is further explained, this explains the demonstration explanation that only is used for the ASBF invention, but not is used to limit the ASBF scope of invention.
As Fig. 1-shown in Figure 6, this is the view that invention is used for the process unit of the uniqueness that sewage disposal is purified for ASBF.The present invention is a rectangular parallelepiped device, and according to the scale and the dimensional requirement of treatment plant, shell 1 can be with different material of construction.For example, can adopt steel plate, the Stainless Steel plate, PVC, glass reinforced plastic, prefabricated cement plate or other non-corrosive material are made, and the rectangular parallelepiped facility can be placed on the working-yard on the ground or on the subterranean concrete pedestal, or the rectangular parallelepiped facility of keeping company and burying according to practical situation.
Concrete as Fig. 1, Fig. 2, shown in Figure 6, the present invention is a rectangular parallelepiped pond, is combined by three parts: a) hypoxia response chamber 2, and hypoxia response chamber 2 is provided with sewage water inlet pipe 10, and waste water or sewage enter hypoxia response chamber 2 by sewage water inlet pipe 10; B) aerobic reaction chamber 4 that is communicated with hypoxia response chamber 2; C) the filtration clarifying chamber 6 between hypoxia response chamber 2 and aerobic reaction chamber 4.In hypoxia response chamber 2, be equipped with one or several agitators 3.Agitator 3 need place under the mixed solution water level 11 and mix sewage.
Again with reference to figure 3, Fig. 4, first interface 14 of filtering clarifying chamber 6 is between hypoxia response chamber 2 and filtration clarifying chamber 6, second contact surface 15 is filtering between clarifying chamber 6 and the aerobic reaction chamber 4, the 3rd interface 16 and first interface 14 and 15 vertical vertical connections of second contact surface, spaced apart with the shell 1 in rectangular parallelepiped pond, as connecting the throat of hypoxia response chamber 2 with aerobic reaction chamber 4.The shell of described three interfaces and the other side and bottom surface constitute jointly filters clarifying chamber 6.First interface 14 and second contact surface 15 all slope inwardly from top to bottom, make the longitudinal cross-section of filtering clarifying chamber 6 be trapezoidal.One or several mud inlets 7 are arranged below the second contact surface 15 in filtering clarifying chamber 6, be used for the mud of aerobic reaction chamber 4 is on average imported filtration clarifying chamber 6.With reference to figure 5, be positioned at filtration 14 bottoms, 6 first interfaces, clarifying chamber and be provided with a sludge outlet 19 again, sludge outlet 19 connects the activity sludge reflux pipe 9 of a feeding hypoxia response chamber 2, is connected to a pump (drawing among the figure) on the activity sludge reflux pipe 9, is used for getting mud.Parallel connection is equipped with and imports mud valve 17 and derive mud valve 18 on activity sludge reflux pipe 9; Activity sludge reflux pipe 9 is by importing 17 controls of mud valve, be used for circulating input from filtering the returned sluge that clarifying chamber 6 flows into hypoxia response chamber 2, and, derive unnecessary mud simultaneously to outside mud storage room (not drawing among the figure) by deriving 18 controls of mud valve.Filter 6 tops, clarifying chamber and be provided with one group of baffle plate diversion trench 12, hold back and collect all buoyant suspending sundries.Be separated with clear water in the middle of the baffle plate diversion trench 12 and overflow weir 8, be used for the clean clear water after outside exhaust filtering is clarified.7 outer at the mud inlet that filters 6 second contact surfaces, 15 bottoms, clarifying chamber, be positioned at 4 bottoms, aerobic reaction chamber, fixedly be equipped with a bubble baffle plate 13, be used for stopping that bubble enters filtration clarifying chamber 6 from aerobic reaction chamber 4.
As Fig. 1 and shown in Figure 6, filtering clarifying chamber 6 is trapezoidal tangent planes.First interface 14, the second contact surface 15 on trapezoidal both sides link to each other with the bottom of rectangular parallelepiped, the angular interval between first interface 14 and the second contact surface 15 be 50 spend to 80 the degree between.
As Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, provide a diversion space to dredge from the hypoxia response chamber 2 combined sewages that flow into aerobic reaction chambers 4 between the 3rd interface 16 that links to each other with first interface 14,15 two interfaces of second contact surface and the shell 1.As Fig. 1, provide a water purification to overflow weir 8 conducts pure water inlet after treatment on the top of filtering clarifying chamber 6.As depicted in figs. 1 and 2, above filtration clarifying chamber 6, be provided with baffle plate diversion trench 12, be used to collect the scum silica frost and the foreign material that swim on the clear water.
The hypoxia response chamber 2 of sewage disposal of the present invention admit sewage to flow into and the backflow thickened sludge mix and export sewage to aerobic reaction chamber 4, in aerobic reaction chamber 4, be provided with aerator 5 and help oxidizing reaction, de-carbon and nitration reaction.In aerobic reaction chamber 4, the source mode of gas has a lot.For example, can utilize ambient air, use the blower pump aeration.Aerator 5 can be provided by the aerating apparatus that varies in size, such as, according to the size of waste disposal plant, select the aerator of or several different sizes to make system reach the ratio of DO (dissolved oxygen).If desired, also to consider energy saver and how to arrange in pairs or groups to reach the aeration effect, will consider the problem of the peak period discharge of sewage simultaneously.The 4 pairs of mixed solutions in aerobic reaction chamber carry out after aeration, oxidation close decomposition, highly effective sludge is imported to by mud inlet 7 filter in the clarifying chamber 6.
It can be prefabricated in advance that apparatus of the present invention form to be filtered the three road walls of three interfaces of clarifying chamber 6 forming, and inserts in the rectangular parallelepiped, also can be field fabrication with rectangular parallelepiped be the device of one.
The technological method of ASBF sewage treatment facility of the present invention can be widely used in industrial sewage to be handled, and the city municipal wastewater is handled, and water and treat agricultural waste and various sewage mixed solution can be the high concentration COD sewage treatment industries; Or removal contains the sewage treatment industry of the different levels of multiple pollutents such as various organic aminos, nitrogen, phosphorus.And can reach the relevant basic demand of CNS (GB18918-2002); This processing method can be used for for little to 5 cubic metres of sewage disposals every day to big to the restriction of not reaching the standard grade.
ASBF sewage treatment process method also is used for transformation, the lifting to existing sewage treatment facility.Such as, be to improve sewage disposal technology and save cost and working cost, fully the technology of the water outlet effect more efficiently that makes new advances according to existing treatment process transformation and design.
Sum up above explanation, ASBF technology can be with pump, stirrer, lift pump or miscellaneous equipment and the material of any size, any exercisable brand.The technological innovation that it reflected is all in the claim scope.The core technology of ASBF invention is for reaching more peace and quiet water and reduce sludge discharge, and falling the nitrogen dephosphorization is the nitrification and denitrification process of finishing coacting of hypoxia response chamber 2 and aerobic reaction chamber 4.Efficient and the stable active sludge life-span can reach 35 days.The ASBF invention will be the indispensable prime mover of Sustainable development, energy-saving and emission-reduction.The technology model that ASBF technology is novel can be used for the various industries that recovery after the sewage disposal and water utilize again.More be applicable to the today and the tomorrow of China's economic fast development a few days ago.The ASBF invention will be saved for the Chinese future resource immensity will be provided, and feedwater brings new life.
Claims (10)
1. a sewage treatment facility is a rectangular parallelepiped pond, is combined by three parts: a hypoxia response chamber, aerobic reaction chamber that is communicated with the hypoxia response chamber and the filtration clarifying chamber between hypoxia response chamber and aerobic reaction chamber.
2. sewage treatment facility according to claim 1 specifically comprises:
A) one contains sewage water inlet pipe, the hypoxia response chamber of activity sludge reflux device and agitator;
B) aerobic reaction chamber that links to each other with the hypoxia response chamber is equipped with aerating apparatus and is stoped bubble to enter the bubble baffle plate that filters the clarifying chamber in the aerobic reaction chamber;
C) filtration clarifying chamber that is connected by bottom mud inlet with the aerobic reaction chamber; First interface of filtering the clarifying chamber is between hypoxia response chamber and filtration clarifying chamber, and second contact surface is filtering between clarifying chamber and the aerobic reaction chamber, and the 3rd interface and first and second interfaces are vertical the connection vertically, and partition distance between the shell in rectangular parallelepiped pond; The shell of described three interfaces and the other side and bottom surface constitute jointly filters the clarifying chamber;
D) a kind of active sludge that reclaims is to the hypoxia response chamber or remove the activity sludge reflux device of mud to outside storage room;
E) a kind of baffle plate diversion trench that stops and collect scum silica frost from the filtration clarifying chamber is used for holding back floating matter to outside waste collection pond from filtering the clarifying chamber;
F) a kind of clear water that filters derivation clear water in the clarifying chamber that is loaded on overflows the weir.
3. sewage treatment facility according to claim 2, c) in first interface and second contact surface all slope inwardly from top to bottom, make the longitudinal cross-section of filtering the clarifying chamber be trapezoidal.
4. sewage treatment facility according to claim 2, the c) spaced apart distance of the shell in the 3rd interface of the filtration clarifying chamber in and rectangular parallelepiped pond is as the throat that connects hypoxia response chamber and aerobic reaction chamber.
5. sewage treatment facility according to claim 2, d) the activity sludge reflux device described in is: be positioned at filtration bottom, first interface, clarifying chamber and be provided with a sludge outlet, sludge outlet connects an activity sludge reflux pipe that feeds the hypoxia response chamber, the activity sludge reflux pipe by valve control reclaim active sludge to the hypoxia response chamber or removing mud to outside storage room.
6. sewage treatment facility according to claim 2, e) the baffle plate diversion trench in is positioned at and filters top, clarifying chamber.
7. according to claim 2,6 described sewage treatment facilities, f) middle clear water overflows the weir every in the middle of the baffle plate diversion trench.
8. sewage treatment facility according to claim 2, b) the bubble baffle plate in is fixedly mounted on outside the mud inlet that filters second contact surface bottom, clarifying chamber, is positioned at bottom the aerobic reaction chamber.
9. treatment process of utilizing biochemical technology to carry out sewage disposal, its treatment process be a kind of through hypoxia response chamber, aerobic reaction chamber, filter the clarifying chamber and the active sludge bed filters clarification process sewage flow process; After sewage enters the hypoxia response chamber, after a large amount of active sludge that filter clarifying chamber's backflow mix, flow into the aerobic reaction chamber by the throat that connects hypoxia response chamber and aerobic reaction chamber; Indoor at aerobic reaction, a large amount of bacteriums, fungi and little (former) give birth to (moving) thing and close under the effect of decomposition in aeration, oxidation, the large amount of organic of eating rapidly, fast by aeration metabolism formation levitated object, i.e. the polysaccharose substance of the stickiness shape that bacterium secretion back forms-the have active sludge (mud of wadding a quilt with cotton suspends) of huge surface area; Suspension is wadded a quilt with cotton mud by one below the aerobic reaction chamber or several mud inlet importing filtration clarifying chambers; In filtering the clarifying chamber, method for clarifying and separating, it is the filter bed sewage treatment process that forms to upper reaches reinforcement active sludge, has the structure that unique trapezoidal longitudinal is upwards widened gradually owing to filter the clarifying chamber, import vertically upwards the successively decrease strength of water impact sludge filtration bed of mud from filtering the bottom, clarifying chamber, simultaneously the Sludge Bed of high density is adsorbed apace and is filtered mud thing to the upper reaches, and make it increase thickness, thereby quickened filtration, precipitation and clarifying effect, formed best, desirable, filtration downwards longitudinally; And exclusive trapezoidal longitudinal cross section area has increased the formation of mud-water separation spatial, thereby reach limpider water purification after filtration the clear water of top, clarifying chamber overflow weir flow and go out, most of thickened sludge of absorption and post precipitation is back to the hypoxia response chamber through the activity sludge reflux pipe to be mixed with the sewage that enters the hypoxia response chamber, begins the new round circular treatment operation identical with above-mentioned technology again; The unnecessary mud that while activity sludge reflux pipe will be collected is transported to outside mud storage room.
10. treatment process according to claim 9 is characterized in that: collect scum silica frost and the foreign material that swim on the clear water by filtering the baffle plate diversion trench that is provided with above the clarifying chamber.
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| CN104803479A (en) * | 2015-05-19 | 2015-07-29 | 江苏哈宜美科面源污染治理有限公司 | Dynamic sludge filtering method and equipment for processing village sewage |
| CN105130122A (en) * | 2015-09-02 | 2015-12-09 | 北京华资大有环境科技有限公司 | Sewage treatment device with active sludge biochemical filtration function |
| CN109205780A (en) * | 2017-07-01 | 2019-01-15 | 陕西谷德环保科技有限公司 | A kind of short distance intensified denitrification and dephosphorization device |
| CN110894128A (en) * | 2019-11-18 | 2020-03-20 | 南昌工程学院 | Internet-based stepped intelligent integrated rural sewage treatment system and method |
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| CN102249479B (en) | 2013-04-24 |
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Effective date of registration: 20170823 Address after: 101200, No. 9, A District, Pinggu Park, Zhongguancun science and Technology Park, Pinggu District, Beijing, -00-81-32 Patentee after: Alan Beijing Yang Environmental Technology Co Ltd Address before: 100078 Beijing Chaoyang District City, an outside left New District AIII No. 2807 unit Patentee before: Geng Xuedong |
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