CN210595708U - Integrated purification device for low-carbon-source domestic sewage treatment - Google Patents
Integrated purification device for low-carbon-source domestic sewage treatment Download PDFInfo
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- CN210595708U CN210595708U CN201921451605.7U CN201921451605U CN210595708U CN 210595708 U CN210595708 U CN 210595708U CN 201921451605 U CN201921451605 U CN 201921451605U CN 210595708 U CN210595708 U CN 210595708U
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Abstract
The utility model discloses an integrated purification device for low carbon source domestic sewage treatment, including activated sludge tank, aeration equipment, sludge discharge pipe, honeycomb duct, baffling artifical rapid infiltration layer pond, drain pipe, baffle one and baffle two, be provided with porous suspension filler ball in the activated sludge tank, be provided with filler district, gravel layer one and gravel layer two in the baffling artifical rapid infiltration layer pond, baffle one and baffle two divide baffling artifical rapid infiltration layer pond into pond district one, pond district two and pond district three, aeration equipment sets up in the bottom of activated sludge tank, sludge discharge pipe connects the bottom in activated sludge tank, the honeycomb duct communicates activated sludge tank to baffling artifical rapid infiltration layer pond, the drain pipe is connected in the bottom of baffling artifical rapid infiltration layer pond; the device can realize efficient purification of sewage, has good denitrification and dephosphorization effects, low residual sludge yield and small secondary pollution, has simple process flow and small occupied area, adopts cheap and easily-obtained materials, and greatly reduces the operation cost.
Description
Technical Field
The utility model relates to a sewage treatment technical field particularly, relates to an integral type purifier for low carbon source domestic sewage treatment.
Background
With the use of a large amount of nitrogen and phosphorus-containing substances such as fertilizers, pesticides, detergents and the like in life, the concentration of nitrogen and phosphorus pollutants in domestic sewage is continuously increased, and the problem of water eutrophication caused by random discharge of the domestic sewage is more and more serious. In recent years, a large number of lakes, reservoirs and estuaries are affected by eutrophication in different degrees or show a eutrophication trend, so that the balance of an aquatic ecosystem is broken, the living environment of aquatic organisms and human beings is threatened greatly, and nitrogen and phosphorus removal becomes one of the key targets of domestic sewage treatment. At present, nitrogen and phosphorus removal of domestic sewage by a municipal sewage treatment plant is mainly realized by a process taking a biological method as a main body, however, sewage in most regions of China, especially in southern regions, belongs to typical low-carbon source domestic sewage, and the problem that the efficiency of the nitrogen and phosphorus removal process is low or the sewage does not reach the first-class A discharge standard of pollutants for municipal sewage treatment plants (GB18918-2002) generally exists. Therefore, enhancing the denitrification and dephosphorization effects of low-carbon-source domestic sewage becomes a technical problem in the sewage treatment field at present, and more attention is paid.
Aiming at the problem of low nitrogen and phosphorus removal efficiency of low carbon source sewage, the conventional nitrogen and phosphorus removal process is replaced by a novel nitrogen and phosphorus removal process, such as: the novel processes can achieve good denitrification and dephosphorization effects, but can be realized by strictly regulating and controlling the conditions of inflow water pH, dissolved oxygen, temperature, sludge age, hydraulic retention time, alkalinity and the like. In the actual domestic sewage treatment process, the strict regulation and control of the conditions can greatly increase the operation cost, and the actual domestic sewage treatment process has the condition of water quality and water quantity fluctuation change, once the environmental conditions change, the nitrogen and phosphorus removal effects of the new processes are often seriously influenced, even a reaction system is damaged, so that the defects of unstable nitrogen and phosphorus removal effects, complex process flow, high operation cost and the like exist in the actual application.
Therefore, aiming at the defects in the prior art, the low-carbon-source domestic sewage treatment device which has the advantages of good nitrogen and phosphorus removal effect, simple process flow, small occupied area and low operation cost is provided, and the device has important practical significance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an integral type purifier for low carbon source domestic sewage handles, its high-efficient purification that can realize sewage, and the nitrogen and phosphorus removal is effectual, and surplus sludge is low in output, and secondary pollution is little, and its process flow is simple, area is little, adopts low-priced easily available material, has reduced the running cost by a wide margin.
The embodiment of the utility model is realized like this:
an integrated purification device for low-carbon source domestic sewage treatment comprises an activated sludge tank, a baffling artificial rapid infiltration tank and a flow guide pipe with a water stop valve II, wherein the activated sludge tank is communicated with the baffling artificial rapid infiltration tank through the flow guide pipe, sewage to be treated firstly enters the activated sludge tank and then enters the baffling artificial rapid infiltration tank through the flow guide pipe, porous suspension filler balls are filled in the activated sludge tank, aeration equipment is arranged at the bottom of the activated sludge tank, a sludge discharge pipe with a water stop valve I is arranged at the bottom of the activated sludge tank, a filler area arranged in the middle of the baffling artificial rapid infiltration tank, a gravel layer I arranged at the top of the baffling artificial rapid infiltration tank and a gravel layer II arranged at the bottom of the baffling artificial rapid infiltration tank are arranged in the baffling artificial rapid infiltration tank, the baffling artificial rapid infiltration tank is divided into three areas including a tank area I, a tank area II and a tank area III, the tank area I is communicated with the bottom of the tank area II, the tank area III, and a drain pipe with a water stop valve III is arranged on the gravel layer at the bottom of the pond area III.
Preferably, when sewage enters the baffling artificial rapid infiltration tank from the draft tube, the sewage firstly permeates from top to bottom in the first tank area, then permeates from bottom to top in the second tank area, and finally permeates from top to bottom in the third tank area and is discharged from the drain pipe.
Preferably, the filling area is filled with river sand, shell sand and sponge iron with the particle size of 0.5-1 mm.
Preferably, before the filler region is filled, anaerobic sludge is adopted for inoculation treatment, the concentration of suspended solids in mixed liquor of the anaerobic sludge is 3000-8000 mg/L, and the volume ratio of the anaerobic sludge to the filler is (2-4): 1.
preferably, the gravel layer I and the gravel layer II are filled with gravel, and the particle size of the gravel is 3-10 mm.
Preferably, the thickness ratio of the filler zone to the gravel layer one and the gravel layer two is 8: 1: 1.
preferably, the diameter of the porous suspension filler ball is 20-50 mm, and the filling rate of the porous suspension filler ball in the activated sludge tank is 10-40%.
Preferably, the porous suspension filler ball is filled with a slow-release carbon source, wherein the slow-release carbon source comprises loofah sponge, bark, straw or corncob.
Preferably, filter cloth is arranged at the joint of the front end of the flow guide pipe and the wall of the activated sludge tank to prevent the activated sludge from flowing out, the joint is positioned 3-5 cm above the baffling artificial rapid infiltration tank, and the tail end of the flow guide pipe is communicated with the top of the tank area; the joint of the drain pipe and the tank wall at the three bottoms of the tank area is provided with filter cloth to prevent the filler from flowing out.
Preferably, the height ratio of the activated sludge tank to the baffled artificial rapid infiltration tank is (1.5-3): 1.
it should be noted that the particle size of the filler (including river sand, shell sand, sponge iron, gravel, etc.) and the mass ratio of the filler are only preferred embodiments, and do not affect the substantial practice of the present invention. The utility model discloses an innovation point lies in structural improvement and the compound mode of pond parts at different levels.
The utility model has the advantages that:
the utility model discloses a porous suspension filler ball release carbon source in the activated sludge pond, turn into the ammonia nitrogen in the sewage into nitrate nitrogen, through activated sludge, the assimilation of porous suspension filler ball and microorganism gets rid of the partial phosphorus pollutant in the sewage, through the setting of district one, district two, district three, the infiltration route of sewage has been prolonged, make the pollutant can be better held back or adsorb by the filler in the filler district, through the adsorption efficiency of filler district shell sand, the reactant of sponge iron, effectively get rid of the phosphorus pollutant, effectively get rid of the nitrogen pollutant through the denitrification reaction of filler district anaerobic environment; the device can realize efficient purification of sewage, has good denitrification and dephosphorization effects, low residual sludge yield and small secondary pollution, has simple process flow and small occupied area, adopts cheap and easily-obtained materials, and greatly reduces the operation cost.
The utility model discloses still have following advantage:
(1) the denitrification and dephosphorization effect is good: the activated sludge tank has good aerobic conditions, can realize high-efficiency nitration reaction, is filled with porous suspended filler balls, utilizes loofah sponge in the porous suspended filler balls to slowly release carbon source, can provide organic carbon source for subsequent heterotrophic denitrification, effectively solves the problem of insufficient carbon source in low-carbon-source domestic sewage, has good lack/anaerobic environment in the baffled artificial rapid infiltration tank, and can provide conditions for autotrophic denitrification and denitrification during the corrosion process of sponge iron in a filler area, thereby realizing high-efficiency denitrification; the activated sludge and the porous suspension filler balls in the activated sludge tank have the effect of adsorbing phosphorus, microorganisms have the assimilation effect on phosphorus, shell sand in the baffled artificial rapid infiltration tank has good adsorption performance on phosphorus, and ferrous ions and further oxidation products thereof generated in the sponge iron corrosion process can perform precipitation reaction with phosphate, so that efficient phosphorus removal is realized. In addition, the porous suspension filler balls can provide a carrier for activated sludge to form a biological membrane, so that microorganisms can grow and reproduce better, and the nitrogen and phosphorus removal efficiency is further improved;
(2) the process flow is simple, and the occupied area is small: the activated sludge tank and the baffling artificial rapid infiltration tank are combined together through the guide pipe to form an integrated structure, the effluent of the activated sludge tank can directly enter the baffling artificial rapid infiltration tank, a transfer tank, an adjusting tank, a sedimentation tank and the like are not required to be additionally arranged, the processes of removing organic matters, slowly releasing a carbon source, carrying out nitration reaction, removing phosphorus and the like are realized in the activated sludge tank, the processes of denitrifying denitrification, removing phosphorus and the like are realized in the baffling artificial rapid infiltration tank, the efficient purification of low-carbon-source domestic sewage is realized through a combined form, the process flow is simple, the occupied area is saved, and the operation is convenient;
(3) the operation cost is low: the loofah sponge is adopted as a slow-release carbon source in the activated sludge tank to replace organic carbon sources such as methanol and glucose which are commonly adopted in the traditional process, so that the cost is saved, and the possibility of secondary pollution is effectively reduced; the effluent of the activated sludge tank directly enters the baffling artificial rapid infiltration tank through the flow guide pipe under the action of gravity flow, so that additional water inlet power is not required, and the operation cost is saved; the fillers in the baffling artificial rapid infiltration tank adopt river sand, shell sand and sponge iron which are cheap and easily available materials; meanwhile, the baffling manual rapid infiltration tank does not generate excess sludge in the sewage treatment process, so that the treatment cost of the excess sludge can be greatly reduced.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope.
FIG. 1 is a schematic view of the integrated purification device for low carbon source domestic sewage treatment of the present invention;
icon: 1. an activated sludge tank; 2. porous suspension packing balls; 3. an aeration device; 4. a sludge discharge pipe; 5. a first water stop valve; 6. a flow guide pipe; 7. a second water stop valve; 8. a baffling manual rapid infiltration tank; 9. a filler zone; 10. a gravel layer I; 11. a gravel layer II; 12. a drain pipe; 13. a third water stop valve; 14. a first clapboard; 15. a second clapboard; 16. a first pool area; 17. a pool area II; 18. and a pool area III.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
First embodiment
Referring to fig. 1, the embodiment provides an integrated purification device for low carbon source domestic sewage treatment, which comprises an activated sludge tank 1, an aeration device 3, a sludge discharge pipe 4, a flow guide pipe 6, a baffling artificial rapid infiltration tank 8, a water discharge pipe 12, a first partition plate 14 and a second partition plate 15, wherein the activated sludge tank 1 is internally provided with porous suspension filler balls 2, the baffling artificial rapid infiltration tank 8 is internally provided with a filler area 9, a first gravel layer 10 and a second gravel layer 11, the first partition plate 14 and the second partition plate 15 divide the baffling artificial rapid infiltration tank 8 into a first pool area 16, a second pool area 17 and a third pool area 18, the aeration device 3 is arranged at the bottom of the activated sludge tank 1, the sludge discharge pipe 4 is connected to the bottom of the activated sludge tank 1, the flow guide pipe 6 connects the activated sludge tank 1 to the baffling artificial rapid infiltration tank 8, and the water discharge pipe 12 is connected to the bottom of the baffling artificial rapid infiltration; after sewage to be treated is precipitated in an activated sludge tank 1, sludge is discharged from a sludge discharge pipe 4, the sewage enters a baffling artificial rapid infiltration tank 8 through a guide pipe 6, and the sewage sequentially passes through a first tank area 16, a second tank area 17 and a third tank area 18 and finally flows out from a drain pipe 12; the activated sludge tank 1 and the baffling artificial rapid infiltration tank 8 are connected and combined through the flow guide pipe 6 to form an integrated structure, the efficient purification of low-carbon source domestic sewage is realized through the combined form, the process flow is simple, the occupied area is saved, and the operation is convenient.
The activated sludge pool 1 is filled with porous suspension filler balls 2, the bottom of the activated sludge pool is provided with an aeration device 3, the diameter of each porous suspension filler ball 2 is 38mm, the filling rate of each porous suspension filler ball 2 in the activated sludge pool 1 is 30%, slow-release carbon sources are filled in each porous suspension filler ball 2 and comprise loofah sponge, bark, straw or corncob, the loofah sponge is adopted in the embodiment, the loofah sponge replaces organic carbon sources such as methanol and glucose which are commonly adopted in the traditional process, the cost is saved, and the possibility of secondary pollution is effectively reduced; the aeration equipment 3 is the prior art, the aeration equipment 3 is in the sewage treatment process, add air to sewage by force, make the sewage contact with air and oxygenate in the pool, and stir liquid, accelerate the oxygen in the air to transfer to the liquid, prevent the suspension body in the pool from sinking, strengthen the contact with microorganism and dissolved oxygen in the pool organic matter, carry on the oxidative decomposition to the organic matter in the sewage; a sludge discharge pipe 4 with a first water stop valve 5 is arranged at the bottom of the activated sludge tank 1, the sludge discharge pipe 4 is communicated to the bottom of the activated sludge tank 1 and discharges sludge from the activated sludge tank 1, and the sludge discharge pipe 4 is opened and closed through the first water stop valve 5; after sewage to be treated enters an activated sludge tank 1, the sewage is fully mixed with the activated sludge and the porous suspension filler balls 2 in the activated sludge tank 1 under the action of an aeration device 3, heterotrophic microorganisms in the activated sludge tank 1 start to degrade organic matters under an aerobic environment, loofah sponge in the porous suspension filler balls 2 slowly releases a carbon source, ammonia nitrogen in the sewage is oxidized into nitrate nitrogen under the action of nitrobacteria, and part of phosphorus pollutants in the sewage is removed through the adsorption of the activated sludge and the porous suspension filler balls 2 and the assimilation of microorganisms; the activated sludge pool 1 has good aerobic conditions, can realize high-efficiency nitration reaction, the activated sludge pool 1 is filled with the porous suspension filler balls 2, and the loofah sponge in the porous suspension filler balls 2 is used for slowly releasing a carbon source, so that an organic carbon source can be provided for subsequent heterotrophic denitrification, and the problem of insufficient carbon source in low-carbon-source domestic sewage is effectively solved; the activated sludge and the porous suspension filler balls 2 in the activated sludge pool 1 have the function of adsorbing phosphorus, and the microorganisms have the assimilation function on the phosphorus, in addition, the porous suspension filler balls 2 can provide a carrier for the activated sludge to form a biological film, so that the microorganisms can grow and reproduce better, and the nitrogen and phosphorus removal efficiency is further improved.
The activated sludge tank 1 is communicated with the baffling artificial rapid infiltration tank 8 through a flow guide pipe 6, filter cloth is arranged at the joint of the front end of the flow guide pipe 6 and the tank wall of the activated sludge tank 1 to prevent the activated sludge from flowing out, the joint is positioned 5cm above the baffling artificial rapid infiltration tank 8, and the tail end of the flow guide pipe 6 is communicated with the top of a first tank area 16; the height ratio of the activated sludge tank 1 to the baffling artificial rapid infiltration tank 8 is 1.5: 1, sewage to be treated firstly enters an activated sludge tank 1 and then enters a first tank area 16 of a baffling artificial rapid infiltration tank 8 through a guide pipe 6, and effluent of the activated sludge tank 1 directly enters the baffling artificial rapid infiltration tank 8 through the guide pipe 6 under the action of gravity flow without additionally providing water inlet power, so that the operation cost is saved; the effluent of the activated sludge tank 1 directly enters the baffled artificial rapid infiltration tank 8 without additionally arranging a transfer tank, an adjusting tank, a sedimentation tank and the like, the processes of removing organic matters, slowly releasing carbon sources, carrying out nitration reaction, removing phosphorus and the like in the activated sludge tank 1, and the processes of denitrifying nitrogen removal, removing phosphorus and the like in the baffled artificial rapid infiltration tank 8 are realized.
The baffled artificial rapid infiltration tank 8 is internally provided with a filler area 9 positioned in the middle, a gravel layer I10 positioned at the top and a gravel layer II 11 positioned at the bottom, wherein the thickness ratio of the filler area 9, the gravel layer I10 and the gravel layer II 11 is 8: 1: 1, filling gravel on the first gravel layer 10 and the second gravel layer 11, wherein the particle size of the gravel is 5-8 mm, and the filling area 9 is formed by filling river sand, shell sand and sponge iron with the particle size of 0.5-0.8 mm according to the mass ratio of 3: 1: 1, uniformly mixing and filling, and inoculating anaerobic sludge (mixed liquor suspended solid concentration MLSS is 3000-8000 mg/L) before filling, wherein the specific inoculation method comprises the following steps: anaerobic sludge and filler are mixed according to the volume ratio of 3: 1, uniformly mixing, stirring for 10-30 min, filtering out residual liquid to finish inoculation, and filling the inoculated filler into a baffled artificial rapid infiltration tank 8; the fillers in the baffling artificial rapid infiltration tank 8 adopt river sand, shell sand and sponge iron, which belong to cheap and easily available materials, and meanwhile, the baffling artificial rapid infiltration tank 8 does not generate excess sludge in the process of treating sewage, so that the treatment cost of the excess sludge can be greatly reduced; a first baffle plate 14 and a second baffle plate 15 are arranged in the baffling artificial rapid infiltration tank 8, the baffling artificial rapid infiltration tank 8 is divided into three areas including a first tank area 16, a second tank area 17 and a third tank area 18, the first tank area 16 is communicated with the bottom of the second tank area 17, the second tank area 17 is communicated with the top of the third tank area 18, when sewage enters the baffling artificial rapid infiltration tank 8 from the draft tube 6, the sewage firstly permeates from top to bottom in the first tank area 16, then permeates from bottom to top in the second tank area 17, finally permeates from top to bottom in the third tank area 18 and is discharged from a drain pipe 12, the drain pipe 12 is arranged at a gravel position at the bottom of the third tank area 18, filter cloth is arranged at a connecting port of the drain pipe 12 and the tank wall at the bottom of the third tank area 18 to prevent filler from flowing out, the drain pipe 12 is provided with a third water stop valve 13, and the drain pipe 12 is opened and; the baffling artificial rapid infiltration tank 8 is internally provided with a good lack/anaerobic environment, hydrogen generated in the corrosion process of sponge iron in the filler area 9 can also provide conditions for autotrophic denitrification and denitrification, so that high-efficiency denitrification is realized, shell sand in the baffling artificial rapid infiltration tank 8 has good adsorption performance on phosphorus, ferrous ions generated in the corrosion process of the sponge iron and further oxidation products thereof can perform precipitation reaction with phosphate, and high-efficiency dephosphorization is realized.
The utility model discloses the sewage of example is taken from the low carbon source domestic sewage of one-tenth university teacher apartment district, and specific water quality index is as follows: CODcr 70.5-104.6 mg/L, BOD5＝60.2～89.5mg/L，NH338.9-45.2 mg/L of-H, 40.5-51.8 mg/L of TN, 3.6-4.5 mg/L of TP, 6.5-7.8 of pH and 17-30 ℃ of ambient temperature during operation.
The process flow of the embodiment of the utility model is as follows:
(1) after 100L of sewage to be treated is added from the upper part of the activated sludge tank 11, the aeration equipment 3 is started to keep the dissolved oxygen concentration of the activated sludge tank 1 at about 2mg/L, the aeration has the effects of providing dissolved oxygen for microorganisms in the activated sludge tank 1, fully mixing the sewage, the activated sludge and the porous suspension packing ball 2 by virtue of the stirring effect of bubbles, and at the moment, the first water stop valve 5, the second water stop valve 7 and the third water stop valve 13 are all in a closed state.
(2) After aeration for 4h, the aeration equipment 3 is closed, and the mixture is kept stand for 30min, so that the activated sludge in the activated sludge tank 1 is precipitated.
(3) After the precipitation is finished, the second water stop valve 7 is opened, the effluent in the activated sludge tank 1 enters the first tank area 16 in the baffling artificial rapid infiltration tank 8 along the draft tube 6, sequentially infiltrates the second tank area 17 and the third tank area 18 under the action of gravity and infiltration, the third water stop valve 13 is opened, and the purified water flows out from the drain pipe 12.
(4) And when no water flows out of the water discharge pipe 12, closing the second water stop valve 7 and the third water stop valve 13.
(5) Along with the increase of the operation period, the sludge concentration in the activated sludge pool 1 also increases, when the suspended solid concentration of the mixed liquid in the activated sludge pool 1 continuously increases, the first water stop valve 5 is opened to discharge part of the activated sludge from the sludge discharge pipe 4, so that the suspended solid concentration of the mixed liquid in the activated sludge pool 1 is kept at about 3500mg/L, and after the sludge discharge is finished, the first water stop valve 5 is closed.
The above steps represent one operation cycle, and the operation of the next cycle is started by repeating the above steps.
Circulating the above operation steps, running for 300 periods, sampling 1 time per day for water quality detection, CODcr、BOD5、NH3And (3) respectively measuring the-H, TN and TP by adopting a potassium dichromate method, a dilution and inoculation method, a Na reagent spectrophotometry method, an alkaline potassium persulfate digestion ultraviolet spectrophotometry method and an ammonium molybdate spectrophotometry method. The operation result shows that the utility model discloses go out water CODcr、BOD5、NH3The concentrations of the H, the TN and the TP are respectively 13.6-20.7 mg/L, 0.9-1.5 mg/L, 0.1-1.3 mg/L, 1.2-2.9 mg/L and 0.1-0.2 mg/L, and the values are all superior to the first-class A emission standard of pollutant emission Standard of municipal wastewater treatment plant (GB 18918-2002).
To sum up, the embodiment of the utility model discloses porous suspension filler ball release carbon source in through activated sludge basin turns into the ammonia nitrogen in the sewage into nitrate nitrogen, through activated sludge, porous suspension filler ball and the assimilation of microorganism with the partial phosphorus pollutant in the sewage get rid of, through the setting of pool district one, pool district two, pool district three, the percolation path of sewage has been prolonged, make the pollutant can be better held back or adsorb by the filler in the filler district, through the adsorption performance of filler district shell sand, the reactant of sponge iron, effectively get rid of the phosphorus pollutant, effectively get rid of the nitrogen pollutant through the denitrification reaction of filler district anaerobic environment; the device can realize efficient purification of sewage, has good denitrification and dephosphorization effects, low residual sludge yield and small secondary pollution, has simple process flow and small occupied area, adopts cheap and easily-obtained materials, and greatly reduces the operation cost.
This description describes examples of embodiments of the invention, and is not intended to illustrate and describe all possible forms of the invention. It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.
Claims (10)
1. The utility model provides an integral type purifier for low carbon source sewage treatment which characterized in that includes: activated sludge pond (1), baffling artifical rapid infiltration layer pond (8) and honeycomb duct (6) that have stagnant water valve two (7), through honeycomb duct (6) intercommunication between activated sludge pond (1) and baffling artifical rapid infiltration layer pond (8), pending sewage is advanced to be gone into activated sludge pond (1), rethread honeycomb duct (6) get into baffling artifical rapid infiltration layer pond (8), activated sludge pond (1) intussuseption is filled with porous suspension packing ball (2) and bottom and is provided with aeration equipment (3), the bottom of activated sludge pond (1) is equipped with mud pipe (4) of taking stagnant water valve one (5), be equipped with filler district (9) that are located the middle part in baffling artifical rapid infiltration layer pond (8), be located the gravel layer one (10) at top and be located the gravel layer two (11) of bottom, be equipped with baffle one (14) and baffle two (15) in baffling artifical rapid infiltration layer pond (8) and divide baffling artifical rapid infiltration layer pond (8) into pond district one (16) of distinguishing one (16) Pool area two (17) and pool area three (18) are three regions altogether, pool area one (16) and pool area two (17) bottom intercommunication, pool area two (17) and pool area three (18) top intercommunication, the gravel layer department of pool area three (18) bottom is equipped with drain pipe (12) of taking stagnant water valve three (13).
2. The integrated purification device for low-carbon-source domestic sewage treatment as claimed in claim 1, wherein the sewage enters the baffled artificial rapid infiltration tank (8) from the draft tube (6), permeates from top to bottom in the first tank region (16), permeates from bottom to top in the second tank region (17), and permeates from top to bottom in the third tank region (18) and is discharged from the drain pipe (12).
3. The integrated purification device for low-carbon-source domestic sewage treatment according to claim 2, wherein the filler area (9) is filled with river sand, shell sand and sponge iron with the particle size of 0.5-1 mm.
4. The integrated purification device for low-carbon-source domestic sewage treatment according to claim 3, wherein anaerobic sludge is adopted for inoculation treatment before the filler zone (9) is filled, the suspended solid concentration of the mixed liquid of the anaerobic sludge is 3000-8000 mg/L, and the mixing volume ratio of the anaerobic sludge and the filler is (2-4): 1.
5. the integrated purification device for low-carbon-source domestic sewage treatment according to claim 3, wherein the gravel layers I (10) and II (11) are filled with gravels, and the particle size of the gravels is 3-10 mm.
6. Integrated purification device for low carbon source domestic sewage treatment according to claim 5, characterized in that the thickness ratio of the filler zone (9), the gravel layer one (10) and the gravel layer two (11) is 8: 1: 1.
7. the integrated purification device for low-carbon-source domestic sewage treatment according to claim 2, wherein the diameter of the porous suspension filler balls (2) is 20-50 mm, and the filling rate of the porous suspension filler balls (2) in the activated sludge tank (1) is 10-40%.
8. The integrated purification device for low-carbon-source domestic sewage treatment according to claim 7, wherein the porous suspension filler balls (2) are filled with a slow-release carbon source, and the slow-release carbon source comprises loofah sponge, bark, straw or corncob.
9. The integrated purification device for low-carbon-source domestic sewage treatment as claimed in claim 2, wherein a connecting port of the front end of the flow guide pipe (6) and the wall of the activated sludge tank (1) is provided with filter cloth to prevent the activated sludge from flowing out, the connecting port is positioned 3-5 cm above the baffled artificial rapid infiltration tank (8), and the tail end of the flow guide pipe (6) is communicated with the top of the first tank area (16); and filter cloth is arranged at the connecting port of the drain pipe (12) and the pool wall at the bottom of the third pool area (18) to prevent the filler from flowing out.
10. The integrated purification device for low-carbon-source domestic sewage treatment according to claim 2, wherein the height ratio of the activated sludge tank (1) to the baffled artificial rapid infiltration tank (8) is (1.5-3): 1.
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| CN201921451605.7U CN210595708U (en) | 2019-09-03 | 2019-09-03 | Integrated purification device for low-carbon-source domestic sewage treatment |
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| CN201921451605.7U CN210595708U (en) | 2019-09-03 | 2019-09-03 | Integrated purification device for low-carbon-source domestic sewage treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117466451A (en) * | 2023-11-14 | 2024-01-30 | 石家庄清流科技有限公司 | Hysteresis type oxygenation device of sewage aeration tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117466451A (en) * | 2023-11-14 | 2024-01-30 | 石家庄清流科技有限公司 | Hysteresis type oxygenation device of sewage aeration tank |
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