CN102249479B - Sewage treatment facility and process - Google Patents
Sewage treatment facility and process Download PDFInfo
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- CN102249479B CN102249479B CN 201110121846 CN201110121846A CN102249479B CN 102249479 B CN102249479 B CN 102249479B CN 201110121846 CN201110121846 CN 201110121846 CN 201110121846 A CN201110121846 A CN 201110121846A CN 102249479 B CN102249479 B CN 102249479B
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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 providedwith 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 relies 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 inadequate to the consciousness of environment protection, in addition numerous 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 only have per capita 1/4 of 2300 cubic metres of Only As world average levels, 1/5 of beautiful Country, rank the 121st in the world, one of weary Country family of the Poor in the equal water Capital of global 13 Ge people source. button except Difficult with the flood Trail stream that utilizes and stroll water Capital source Hou under the ground of speed ground District partially, the existing available light water Capital of the Real source of middle Country amount The still less, about Only As 11000 Hundred-million cubic meters, can utilize per capita 900 cubic metres of Shui Capital Yuan Approximately As, Asia and its Fen Fabric Very are uneven, and to 20 Shi Ji end, the existing city of Ge more than 400 exists insufficient water Ask to inscribe in complete more than 600 city of Country, wherein connect 110 Ge Bi the heavy lack of water city of More Yan, the about 60 Hundred-million cubic meters of full Country urban water shortage Total amount As.
According to monitoring, the underground water in national most cities is subjected to a certain extent point-like and facial contamination at present, and the trend that increases the weight of is year by year arranged.The water that is on the rise pollutes the use function 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 small amount 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 sewage work carry mark transformation and require urgent, Sewage Plant and pipe network fraction of coverage not enough, sewage treating efficiency has much room for improvement, the difficulty that the ﹠ Mud Facilities Construction seriously lags behind, municipal pollution has been aggravated the rural pollution processing to transfer of rural etc.
Existing sewage treatment process comprises substantially: Physical, 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 recycles in order to reach middle water, thereby cost is higher.
With regard to general and the most the most frequently used biological process, as traditional oxidation ditch biological treatment (afterwards referred to as oxidation ditch), A2/O, mud-water separation is normally because gravity separation precipitation from top to down overflowing the very long precipitation of mud and water.The definition of this precipitation is to add the intermediate processing that is attracted mud by action of gravity after will first active sludge being imported the clarifying chamber.
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 whole sewage treatment process needs the aeration tank, the 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 the concentration of active sludge is lower, the growing amount of sludge garbage has increased widely, and this will increase follow-up processing cost.
Second point is not enough: 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 machinery, 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 clarified separation effect of some techniques is not very high, picture BAF (quick-fried gas biological filter facture), SBR (order 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 large, 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 (order is amassed the formula activated sludge method) need to add chemicals to Sewage treatment systems, have improved operation cost.MBR need to 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 to add medicine falls nitrogen, increases unnecessary filter plant dephosphorization.
The 4th deficiency: some sewage treatment process often need to be in the pass, open state in working cycle.
1. such as BAF technique, 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 technique only has a pond, then need to 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, in order to find the sewage treatment process that is fit to China's actual conditions and the requirement that improves environmental protection and Sustainable development, reach the needs that improve energy-saving and emission-reduction, 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 efficient nitrogen reduction dephosphorization;
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 equipment investment is few, takes up an area little and the low future development of running cost;
4. High-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 Implementation and ultralow energy-saving run.
Summary of the invention
Existing sewage disposal device is outmoded at present in order to solve China, and 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 facility and the treatment process of sewage disposal.
The present invention proposes a kind of ASBF (activity) mud and sewage treatment facility and technique.
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.Filter first interface of clarifying chamber 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 the 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 consist of jointly filters the clarifying chamber.The 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.In filtering the clarifying chamber, below the second contact surface one or several mud entrances are arranged, 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, the first interface, clarifying chamber and be provided with a sludge outlet, sludge outlet connection one passes into the activity sludge reflux pipe of hypoxia response chamber, the input that is used for circulating flows into the returned sluge of hypoxia response chamber from filtering the clarifying chamber, and derives simultaneously unnecessary mud 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 floating 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 technique 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 is automatically controlled and collected and might swim in the lip-deep scum silica frost of water purification and foreign material.
Treatment process of the present invention:
The ASBF invention is a kind of technical process of filtering clarification sewage through hypoxia response chamber, aerobic reaction chamber, filtration clarifying chamber and active sludge bed.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, form levitated object by aeration metabolism fast, the polysaccharose substance of the stickiness shape that forms after the namely bacterium secretion, the active sludge (wadding mud suspends) that namely has huge surface area.Suspension wadding mud is by one or several mud entrances importing filtration clarifying chambers of below, aerobic reaction chamber.
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 filtering 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 rapidly and is filtered mud thing to the upper reaches, and make it increase thickness, thereby accelerated filtration, the effect of precipitation and clarification, make the good oxidation of tool, decomposing organic matter and good cohesion, the active sludge of sedimentation function is suspended substance and the filtering-depositing in the quick adsorption sewage at short notice, between the floating body or the floating floss group of generation that flocks together.When the weight of dough greater than the vertical speed raising force strengthen gradually at the section that makes progress owing to filtering the clarifying chamber, dough upwards reduces thereupon gradually, they drop to the bottom of filtering the clarifying chamber; Form best, desirable, longitudinally filtration downwards, finished the sewage purification operation.And exclusive trapezoidal longitudinal cross section area has increased the formation in mud-water separation space, thereby reach limpider water purification after filtration the clear water of top, clarifying chamber overflow weir flow and go out, most of thickened sludge after absorption and the 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 again the new round circular treatment operation identical with above-mentioned technique; 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 ladder-shaped apparatus filters three interfaces and hypoxia response chamber of clarifying chamber, and the aerobic reaction chamber is shared and separate, and forms three very compact, as independently to separate again cuboid container.Reduced the civil engineering area, owing to filtering the handiness that the clarifying chamber distinguishingly has super large, overload, excess load, compared with existing traditional gravitational settling method, filtered the size of clarifying chamber and can save 50%;
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 technique that forms to upper reaches reinforcement active sludge.Because trapezoidal unique design, it vertically reduces the strength that upward water flow impacts the active sludge filter bed, improves simultaneously the speed of mud all one's effort, quick precipitation downwards, absorption, and the more and more thicker Sludge Bed of formation.Its oneself control and the best, desirable, the vertical flow process of sedimentation and filtration clarification downwards that form are added the make progress design of broadening of trapezoidal longitudinal cross section area and have been increased again the formation in mud-water separation space.Thereby reach the limpider after filtration overfalling weir outflow of top, clarifying chamber of water purification;
4, because the iterative cycles of more efficient mud-water separation effect and high quality, high density high compression active sludge and repeatedly mix with the sewage of hypoxia response chamber, and produce still less sludge garbage.
Two, the ASBF invented technology is integrated, validity, and saving type and compactedness only need the auxiliary operation of minimum 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 technique, 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, because self-control and control do not need to add any chemicals, just can reach efficiently to denitrogenate and fall the phosphorus effect.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 treatmentmethod 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 transformation becomes nitrogen, simultaneously, has also reached the effect of falling phosphorus.In the treating processes of sewage under the residence time of aeration and abundance, 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, mutually control of ASBF invention is 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.Ripe, have research and development history and the examples prove in five, 60 years, if the owner need to reach Water reuse and recovery, the advantage of its maximum is with minimum film device, just can reach being recycled of middle water.
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 ladder-shaped apparatus of unique core technology-filtration clarifying chamber
Filter the design of the exclusive ladder type in clarifying chamber itself, provide hydraulic pressure flexible, flexible flow pattern and the higher flow of Adaptive change of the effluent cycle when being easy to hold the peak and processing self-control.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 larger 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 baffle plate has stopped that the bubble of aerobic reaction chamber flows into the filtration clarifying chamber with sewage, makes sewage enter the filtration clarifying chamber from the bottom equilibrium of aerobic reaction chamber, carries out quick adsorption 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 current guide groove device is arranged, and it is to stop and automatically collect 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 consists of 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 large 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, greatly saved the early stage input of fund.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 again follow-up working cost.
3, the examples prove of ASBF invention, sewage work can run well in the very large interval of natural temperature voluntarily, 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 of aerobic reaction chamber appropriateness is that fast oxidation occurs 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 place of resident close to very.
Sum up:
To sum up state technical process described, the ASBF invention is a kind of novel Integral sludge bed biological treatment.Its invention has solved many difficulties 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 film group device that follow-up adding is minimum more can reach Water reuse.
This technique integrates anoxic, aerobic and upward flow Sludge Bed is filtered the clarifying chamber, and compact construction, easily operation, 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 on the contrary the sewage load of peak period.
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 active sludge efficient, 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 iterative cycles of active sludge and recycling, the lengthening of sludge age, and producing 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 according to owner's fund limit by stages;
Be very easy to sewage work that is existing, aging, 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, Municipal, commercial and industrial), particularly vast small and medium-sized cities, development area, small towns vast, that disperse, tourist attractions etc.
The practical feature of ASBF invention:
1, integrates three biological respinse chambers
2, compactness is simplified the civil engineering scale that reduced
3, all biological respinses are integrated, and therefore have efficient result
4, because own medelling can chase after and build by stages, shorten investment to the time of operation
5, can be prefabricated in the factory, easilier install at the scene, the engineering time is short, saves artificial.
Filter the special ladder type shape of clarifying chamber:
1, activated sludge concentration is high, 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 enter current to the impact of 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, has into having;
4, owing to trapezium-shaped, the sewage load of each reaction chamber has been improved at trapezoidal interface;
5, because trapezium-shaped, reduce mud rubbish growing amount and increased more peace and quiet water.
Exclusive process unit:
1, the air that stops bubble plate resistance gear aerobic reaction chamber enters and filters the clarifying chamber, improves the optimum value of mud-water separation;
2, the baffle plate and the receiving tank that filter clarifying chamber's internal upper part have been collected the foreign material that might swim on the water surface;
3, the several functions 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 consumption saving wheel, and the domestic procurement relevant device is saved foreign exchange;
2, requirement operator still less save running cost;
3, oneself's control, voluntarily running;
4, do not need complicated pre-treatment;
If 5 coact with film treater technology, can effectively reach Water reuse;
6, improve the high dehydration of mud, the reduce mud growing amount reduces follow-up investment.
Other
1, odorless because system constantly carries out oxidation to sewage, can be built the residential quarter 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 schematic 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 clarifying chamber, 7. mud entrance, 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. the first interface, 15. second contact surfaces, 16. the 3rd interfaces, 17. import the mud valve, 18. derive mud valve, 19. sludge outlets.
Embodiment
Invention is further expalined specific examples by reference to the accompanying drawings to ASBF, and this explains the demonstration explanation that only is used for the ASBF invention, but not is used for limiting the ASBF scope of invention.
Such 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 scale and the dimensional requirement for the treatment of 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 board or other non-corrosive material are made, and the rectangular parallelepiped facility can be placed on the working-yard on the ground or underground concrete pedestal on, or the rectangular parallelepiped facility of keeping company and burying according to practical situation.
Concrete such 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 to place under the mixed solution water level 11 and mix sewage.
Again with reference to figure 3, Fig. 4, filter the first interface 14 of clarifying chamber 6 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, are connected with second contact surface vertically vertical the connection with the first interface 14 in the 3rd interface 16, 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 consist of jointly filters clarifying chamber 6.The 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.In filtering clarifying chamber 6, below the second contact surface 15 one or several mud entrances 7 are arranged, be used for the mud of aerobic reaction chamber 4 is on average imported filtration clarifying chamber 6.Again with reference to figure 5, be positioned at filtration 14 bottoms, 6 first interfaces, clarifying chamber and be provided with a sludge outlet 19, sludge outlet 19 connections one pass into the activity sludge reflux pipe 9 of hypoxia response chamber 2, are connected to a pump (drawing among the figure) on the activity sludge reflux pipe 9, are 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 of inflow hypoxia response chambers 26, clarifying chamber, and by deriving 18 controls of mud valve, derive simultaneously unnecessary mud to outside mud storage room (not drawing among the figure).Filter 6 tops, clarifying chamber and be provided with one group of baffle plate diversion trench 12, hold back and collect all floating 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.Outer at the mud entrance 7 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.
Such as Fig. 1 and shown in Figure 6, filtering clarifying chamber 6 is trapezoidal tangent planes.The first interface 14, the second contact surface 15 on trapezoidal both sides link to each other with the bottom of rectangular parallelepiped, and the angular interval between the first interface 14 and the second contact surface 15 is that 50 degree are between 80 degree.
Such 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 the first interface 14,15 two interfaces of second contact surface and the shell 1.Such 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 for collecting 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 necessary, also to consider energy saver and how arrange in pairs or groups to reach the aeration effect, will consider simultaneously the problem of the peak period discharge of sewage.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 entrance 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 that three interfaces of clarifying chamber 6 form, and inserts in the rectangular parallelepiped, also can be the device that is integrated with rectangular parallelepiped of field fabrication.
The technological method of ASBF sewage treatment facility of the present invention can be widely used in industrial sewage to be processed, the Municipal sewage disposal, 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 the multiple pollutants 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 large 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, the more efficiently technique of outlet effect that makes new advances according to existing treatment process transformation and design fully.
Sum up above explanation, ASBF technique can be with pump, stirrer, lift pump or miscellaneous equipment and the material of any size, any exercisable brand.Its technological innovation that reflects is all in the claim scope.The core technology of ASBF invention is to be the nitrification and denitrification process that coacts to finish at hypoxia response chamber 2 and aerobic reaction chamber 4 for reaching more peace and quiet water and reduce mud quantity discharged, falling the nitrogen dephosphorization.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 technique is novel can be used for recovery after the sewage disposal and the various industries of water recycling.More be applicable to today and the tomorrow of a few days ago economic fast development of China.The ASBF invention will be saved for the Chinese future resource immensity will be provided, and feedwater brings new life.
Claims (8)
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; Specifically comprise:
A) hypoxia response chamber of containing sewage water inlet pipe and agitator;
B) aerating apparatus is equipped with in an aerobic reaction chamber that links to each other with the hypoxia response chamber in the aerobic reaction chamber, and stops bubble to enter the bubble baffle plate that filters the clarifying chamber;
C) filtration clarifying chamber that is connected by bottom mud entrance with the aerobic reaction chamber; Filter the first interface of clarifying chamber between hypoxia response chamber and filtration clarifying chamber, second contact surface is filtering between clarifying chamber and the aerobic reaction chamber, and the 3rd interface and the 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 consist of jointly filters the clarifying chamber;
D) one is reclaimed active sludge to the hypoxia response chamber or removes mud to the activity sludge reflux device of outside storage room; Described activity sludge reflux device is: be positioned at filtration bottom, the first interface, clarifying chamber and be provided with a sludge outlet, sludge outlet connection one passes into the activity sludge reflux pipe of hypoxia response chamber, and the activity sludge reflux pipe is controlled by valve and reclaimed active sludge to the hypoxia response chamber or remove mud to outside storage room;
E) baffle plate diversion trench that stops and collect scum silica frost from filtering the clarifying chamber is used for holding back floating matter to outside waste collection pond from filtering the clarifying chamber;
F) clear water that is loaded on derivation clear water in the filtration clarifying chamber overflows the weir.
2. sewage treatment facility according to claim 1, c) in the 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.
3. sewage treatment facility according to claim 1, the isolated distance of the 3rd interface of the filtration clarifying chamber in c) and the shell in rectangular parallelepiped pond is as the throat that connects hypoxia response chamber and aerobic reaction chamber.
4. sewage treatment facility according to claim 1, the baffle plate diversion trench in e) is positioned at and filters top, clarifying chamber.
5. according to claim 1 or 4 described sewage treatment facilities, f) in clear water overflow the weir every in the middle of the baffle plate diversion trench.
6. sewage treatment facility according to claim 1, the bubble baffle plate in b) be fixedly mounted on the mud entrance that filters second contact surface bottom, clarifying chamber outer, be positioned at bottom, aerobic reaction chamber.
7. a right to use requires the treatment process that 1 sewage treatment facility utilizes 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 technical process that the sludge filtration bed filters clarification sewage; 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, form levitated object by aeration metabolism fast, be the polysaccharose substance-have the active sludge of huge surface area of the stickiness shape that forms after the bacterium secretion, wadding mud namely suspends; Suspension wadding mud is by one or several mud entrances importing filtration clarifying chambers of below, aerobic reaction chamber; In filtering the clarifying chamber, method for clarifying and separating, it is the sludge filtration 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 filtering 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 filtration bed of high density adsorbs rapidly and filters mud thing to the upper reaches, and make it increase thickness, thereby accelerated the effect of filtration, precipitation and clarification, formed best, desirable, longitudinally filtration downwards; And exclusive trapezoidal longitudinal cross section area has increased the formation in mud-water separation space, thereby reach limpider water purification after filtration the clear water of top, clarifying chamber overflow weir flow and go out, most of thickened sludge after absorption and the 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 again the new round circular treatment operation identical with above-mentioned technique; The unnecessary mud that while activity sludge reflux pipe will be collected is transported to outside mud storage room.
8. treatment process according to claim 7 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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| CN103241897A (en) * | 2013-05-02 | 2013-08-14 | 江苏瑞盛水处理有限公司 | Integrated water-treatment device |
| CN104803479B (en) * | 2015-05-19 | 2017-02-01 | 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 |
| CN105130122B (en) * | 2015-09-02 | 2018-05-15 | 北京华资大有环境科技有限公司 | Activated sludge biochemical filter sewage processing unit |
| 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 |
| CN110894128B (en) * | 2019-11-18 | 2022-04-15 | 南昌工程学院 | Internet-based stepped intelligent integrated rural sewage treatment system and method |
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| JPH10192888A (en) * | 1996-12-30 | 1998-07-28 | Kiichiro Sarui | Method and apparatus for cleaning wastewater |
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| CN2540408Y (en) * | 2002-04-27 | 2003-03-19 | 中国科学院沈阳应用生态研究所 | Multifunctional biochemical treatment device for oil field sewage |
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