CN104150706A - Device and method for purifying sewage by utilizing slow infiltration system and unpowered rotating biological contactor - Google Patents
Device and method for purifying sewage by utilizing slow infiltration system and unpowered rotating biological contactor Download PDFInfo
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- CN104150706A CN104150706A CN201410360148.6A CN201410360148A CN104150706A CN 104150706 A CN104150706 A CN 104150706A CN 201410360148 A CN201410360148 A CN 201410360148A CN 104150706 A CN104150706 A CN 104150706A
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Abstract
The invention provides a device for purifying sewage by utilizing a slow infiltration system and an unpowered rotating biological contactor. The device mainly comprises a roller grillage machine, an unpowered biological treatment device and a slow soil infiltration system. The invention also discloses a method for purifying sewage by utilizing the device. By adopting the device and the method, the sewage can be economically and effectively purified, nutrients and water in the sewage can be fully utilized, the production of crops, forage grass and woods can be strengthened, the development of aquatic and livestock products can be promoted, meanwhile the sewage can be treated with high hydraulic load on the area which is as small as possible and the effects of sewage treatment with higher hydraulic load are 15 times the effects of sewage treatment of conventional single slow soil infiltration systems.
Description
Technical field
The present invention relates to a kind of gravitional force transformation power to promote the device of blodisc rotation treatment sewage, relate more specifically to a kind of device that system unpowered biological rotating disk is purified waste water that oozes slowly.
The invention still further relates to the method for utilizing said apparatus to carry out sewage purification.
Background technology
Blodisc is the modern technique of existing biological sewage treatment, rotating disk half is placed in treatment sewage, half is exposed in air, use machine shaft to drive rotating disk constantly to rotate, rotating disk in water and airborne rotating disk constantly exchange processing environment, treatment effect is good, effluent quality is high, but due to the continuous rotary turnplate of needs driven by motor, expend a large amount of electric energy, it is main treatment technology that the present invention chooses blodisc, adopt unpowered Design Mode, only need to drop into construction cost, without working cost, the disposable sewage by oneself that builds up.This technique has stronger adaptability to the variation of influent quality, the water yield, even if centre stops for some time water inlet, also can not bring obvious obstacle to biomembranous purification function.Use disposing of sewage that this technique can be efficient, economic, purification rate is high, and conformability is strong; And simple in structure, running safety, completely without consuming the energy.In being applicable to processing, low-concentration organic wastewater, water outlet can be directly as middle water reuse, meets the theory of " save energy, resource circulation utilization " that China's brute force advocates.
Summary of the invention
The object of the present invention is to provide one to ooze slowly system unpowered biological rotating disk water purifying device.
Another object of the present invention is to provide a kind of method of utilizing said apparatus to carry out sewage purification.
For achieving the above object, the system unpowered biological rotating disk water purifying device that oozes slowly provided by the invention, mainly by cylinder grid maker, unpowered biological treatment unit and at a slow speed the soil system of oozing form; Wherein:
One cylinder grid maker, for the solid of the food waste percolate that dams;
After entering high-order water inlet pipe, the sewage of cylinder grid maker processing inputs unpowered biological treatment unit;
Top in unpowered biological treatment unit is blodisc, is filled with polyethylene ball in blodisc, and polyethylene ball inside is hollow form, and inside is filled with light granules type molecular sieve filling, and spherome surface is covered with square opening; The polyethylene ball of filling is 3/4 of blodisc internal space; Blodisc is divided into the firstth district and Second Region by dividing plate; Bottom in unpowered biological treatment unit is the biological filter that is filled with flow model molecular sieve filling, and the periphery of blodisc is provided with waterwheel, and blodisc is immersed in biological filter; The waterwheel of the blodisc in corresponding firstth district of water outlet of high-order water inlet pipe, drives the blodisc in the firstth district to rotate, and the blodisc in the firstth district and the blodisc of Second Region, by geartransmission, are rotating under power indirectly; Supernatant liquor in biological filter imports soil at a slow speed by water distributor and oozes in system;
The soil system of oozing is followed successively by surperficial sandy soils, metalling, filtering layer and water guide layer from top to bottom at a slow speed, wherein surperficial sandy soils is sand mixture, for serike, filtering layer is non-woven fabrics, upper strata in filtering layer and water guide layer is equipped with the mixed fillers of gravel and Wingdale, and lower floor is equipped with gravel and zeolite mixed fillers; Soil oozes in system sewage importing after treatment outlet sump at a slow speed.
The described system unpowered biological rotating disk water purifying device that oozes slowly, wherein, is provided with in cylinder grid maker by iron plate and is rolled into the roller screen that one section of sieve plate of sandwich forms after two cylinders, and the below of roller screen is tank; The shell of cylinder grid maker is semi-enclosed shell, and integral erection is on support, and needle-like swabbing pig Gu is Dinged a side of Roll sieve, and is positioned at the upper end of semi-enclosed shell.
The described system unpowered biological rotating disk water purifying device that oozes slowly, wherein, the roller screen rotating speed of cylinder grid maker is 10～90 turn/min.
The described system unpowered biological rotating disk water purifying device that oozes slowly, wherein, enters high-order water inlet pipe under the effect through the sewage of cylinder grid processing at hydro-pump.
The described system unpowered biological rotating disk water purifying device that oozes slowly, wherein, the 20-60% of blodisc area is immersed in biological filter.
The described system unpowered biological rotating disk water purifying device that oozes slowly, wherein, soil oozes the sand mixture that the surperficial sandy soils of system is 0.2m at a slow speed, and the diatomaceous volume mixture ratio of sand and Fu Luoli is 2:1-3:1; Rubble bed thickness 0.3m, for the rubble of particle diameter 1.2mm-1.5mm, filtering layer is the non-woven fabrics of thickness 30mm, filtering layer and water guide bed thickness 50mm, gravel, Wingdale mixed fillers are laid in upper strata, and for solidifying of phosphorus, gravel, zeolite mixed fillers are laid by lower floor, for the purification once again of sewage, its packing material size is respectively 8mm-15mm and 15mm-30mm; Soil oozes the gradient that the bottom of system is i=0.1-0.5 at a slow speed.
Provided by the inventionly utilize the above-mentioned method that system unpowered biological rotating disk water purifying device carries out sewage purification of oozing slowly:
Sewage flows through and enters in tank from the hole of cylinder grid, solid dams in the screen surface of cylinder cylinder grid, in the action of gravity of drum-inclined, under the centrifugal concussion effect that cylinder rotates and the impellent of reciprocating cleaning push pedal, drop below cylinder grid maker, in first inputting in unpowered biological treatment unit sewage after the sewage of cylinder grid processing enters high-order water inlet pipe, organism carries out aerobic biodegradation, the flow model molecular sieve filling of then flowing through in biological filter, bottom, further process the pollution substance in water, the blodisc that finally enters Second Region further carries out aerobe processing, making itrogenous organic substance in sewage is first ammonia nitrogen by heterotroph microbial transformation, then under aerobic (Aerobic) condition, the effect of and nitrococcus nitrated by aerobic autotrophic type, ammonia nitrogen in waste water is oxidized to nitrite nitrogen or nitrate nitrogen, finally under anoxic (Anoxic) condition, utilizing denitrifying bacterium (denitrifier) is that nitrogen is overflowed from waste water by nitrite and nitrate transformation, thereby reach the object of denitrogenation,
Blodisc is immersed in the waste water in unpowered biological treatment unit, and blodisc immerses a part for waste water, and the organism in its surface biological film absorption waste water, makes microorganism obtain nutrition; In the time producing the water surface, the moisture film of microbial film and drive thereof directly absorbs again oxygen from atmosphere; So circulation repeatedly, organism in waste water obtains oxygenolysis under aerobic effect, microbial film in blodisc on molecular sieve also can, because of aging constantly self falling, precipitate in biological filter, and supernatant liquor imports soil at a slow speed by water distributor and oozes system;
The surperficial sandy soils that soil oozes system is at a slow speed for serike system, and the porosity that its large particle diameter forms has promoted flowing of sewage; By filtering layer, filtering layer and water guide layer, sewage is purified once again;
Native surperficial sandy soils kind of oozing system is implanted with the plant of heavy root system at a slow speed, strengthens the combined effect of root system of plant and microorganism, increases porosity of soil to improve sewage popularity, promotes plant and oozes absorption and sorption effect in system at soil; Utilize the red mud molecular sieve of meta-alkalescence as filler, the small molecules acid producing with anaerobic part acidifying in absorption rapidly, regulates sewage potential of hydrogen simultaneously, makes environment plant preferably in device, microorganism existence; Build the heavy metal in the fixing sewage of slight alkali environment simultaneously, prevent that it from leaching, utilize small organic molecule to supply with plant nutrient, absorption in growing process, absorption heavy metal carry out heavy metal biological stabilization.
Soil oozes in system water importing outlet sump up to standard after treatment at a slow speed.
Described method, wherein, the solid particulate that cylinder grid maker is separated, the mud that unpowered biological treatment unit is discharged are mixed into the fertile organic fertilizer that produces of windrow, reach the effect that resource reclaims.
Described method, wherein, the part effluent recycling that soil oozes system is at a slow speed to the water inlet of unpowered biological treatment unit, and regulating water quality also stimulates microorganism growth process secretion secondary substance.
The invention provides a kind of biological treatment environment of uniqueness, first itrogenous organic substance in sewage is ammonia nitrogen by heterotroph microbial transformation, then under aerobic (Aerobic) condition, the effect of and nitrococcus nitrated by aerobic autotrophic type, ammonia nitrogen in waste water is oxidized to nitrite nitrogen or nitrate nitrogen, finally under anoxic (Anoxic) condition, utilizing denitrifying bacterium (denitrifier) is that nitrogen is overflowed from waste water by nitrite and nitrate transformation, reaches preferably the object of denitrogenation.Through unpowered biological treatment unit sewage after treatment, its nutrient concentrations is cut down in a large number, reduce the bio-toxicity of sewage, then adopt sewage Slow Rate Land Treatment System, with the advanced treatment of sewage be utilized as major objective, allow sewage slowly by soil, because filtering, naturally osmotic makes sewage purification, regeneration, by soil-plant system, carry out series of physical, chemistry, biological action.When blodisc work, rotating disk top contacts with air, and in its interior molecules sieve, ammonia nitrogen is oxidized to the stripping of nitre nitrogen, rotates into sewage inside, again adsorbs ammonia nitrogen, and in denitrification process, consumes organism in sewage, goes round and begins again and disposes of sewage.The soil processing of sewage, purified cost-effectively sewage, taken full advantage of again nutritive substance and water in sewage, the production of strengthening farm crop, herbage and forest, promote the development of aquatic products and livestock products, on as far as possible little area, dispose of sewage with high hydraulic load simultaneously.
Brief description of the drawings
Fig. 1 is device schematic diagram of the present invention.
Primary clustering nomenclature in accompanying drawing:
1 cylinder grid maker; 2 reciprocating cleaning push pedals; 3 needle-like swabbing pigs; 4 high-order water inlet pipes; 5 waterwheels; 6 polyethylene balls; 7 steel axles; 8 blodiscs; 9 bodies of wall; 10 unpowered biological treatment unit; 11 water distributors; 12 botanical systems; 13 at a slow speed soil ooze system; 14 surperficial sandy soils; 15 non-woven fabrics; 16 sand stone layer; 17 filtering layers and water guide layer; 18 outlet sumies; 19 biological filters; 20 hydro-pumps; 21 semi-enclosed shells; 22 supports; The blodisc in A the firstth district; The blodisc of B Second Region.
Embodiment
Refer to Fig. 1.System unpowered biological rotating disk water purifying device is oozed in the present invention slowly and method can be removed the pollution substance in sewage, completes preferably the process of resource recovery.
Slowly the system unpowered biological rotating disk water purifying device that oozes of the present invention, primary structure is:
One cylinder grid maker 1, is rolled into by iron plate cylinder, semi-enclosed shell 21, support 22 and the tank that one section of web plate of sandwich forms after two cylinders and forms, and needle-like swabbing pig 3 is fixed on a side of Yuan Tong Roll sieve, in semi-enclosed shell 21 upper ends.Sewage flows through from the hole of cylinder grid, directly falls in tank; Solid dams on trommel screen net surface, under action of gravity, the centrifugal concussion effect of cylinder rotation and the impellent of reciprocating cleaning push pedal 2 of drum-inclined, drops below cylinder grid maker 1 (being the left side of drawing).In the process of rotating at cylinder (rotating speed is 10～90 turn/min), needle-like swabbing pig 3 constantly rotates thereupon, prevent that the sieve aperture on cylinder grid maker 1 from being stopped up by solid, the solid that stops up sieve aperture falls into cylinder inside under the effect of swabbing pig, under the centrifugal concussion effect of rotating at cylinder, drop in the left side of grid maker.After entering high-order water inlet pipe 4 under the effect of hydro-pump 20, the sewage of grid processing inputs unpowered biological treatment unit 10.The solid particulate that cylinder grid maker is separated, the mud that unpowered biological treatment unit is discharged are mixed into windrow fertilizer, produce organic fertilizer, reach the effect that resource reclaims.
Top in unpowered biological treatment unit 10 is to be divided into the blodisc 8 of the blodisc of the first district A and blodisc 8, the first district A of Second Region B and the blodisc 8 of Second Region B by geartransmission by body of wall 9, under indirect power, is rotating.The bottom of blodisc 8 is the biological filter 19 that is filled with flow model molecular sieve filling, and the periphery of blodisc 8 is provided with waterwheel 5.The waterwheel 5 of corresponding first blodisc 8 of water outlet of high-order water inlet pipe 4, in the time of this waterwheel 5 of water impact of high-order water inlet pipe 4, streaming potential is converted into kinetic energy, thereby drive the blodisc of the first district A to rotate, organism in sewage is carried out to aerobic biodegradation, the flow model molecular sieve filling of then flowing through in biological filter, bottom 19, further processes the pollution substance in water, and the blodisc that finally enters Second Region B further carries out aerobe processing.First itrogenous organic substance in sewage in sewage is ammonia nitrogen by heterotroph microbial transformation, then under aerobic (Aerobic) condition, the effect of and nitrococcus nitrated by aerobic autotrophic type, ammonia nitrogen in waste water is oxidized to nitrite nitrogen or nitrate nitrogen, finally under anoxic (Anoxic) condition, utilizing denitrifying bacterium (denitrifier) is that nitrogen is overflowed from waste water by nitrite and nitrate transformation, thereby reaches the object of denitrogenation.In unpowered biological treatment unit of the present invention, can purify waste water cost-effectively, make full use of nutritive substance and water in sewage, the production of strengthening farm crop, herbage and forest, promote the development of aquatic products and livestock products, on as far as possible little area, dispose of sewage with high hydraulic load simultaneously.
Blodisc 8 parts adopt and are made up of the some pie hollow iron cages that are fixed on a transverse axis.Pie hollow iron cage be by six iron plates of round iron plate welding as skeleton, skeleton one side is welded a circular web plate, two skeletons are arranged in parallel, between rely on web plate to bend to circular connection.Transverse axis and iron cage adopt hexagon to fix, to strengthen its coupling stiffness.The inner completely polyethylene ball 6 of filling of iron cage, polyethylene ball 6 inside are hollow, spherome surface is covered with square opening, polyethylene ball inside is filled with light granules type molecular sieve filling, compactedness is 3/4 of polyethylene ball internal space, to ensure in blodisc rotation process, the mobility of polyethylene ball inner stuffing.In blodisc rotation process, due to the mobility of the inner light granules type of polyethylene ball molecular sieve filling, make irregular collision between polyethylene ball interior molecules sieve filler, make its surface biological film come off under shock rubbing effect.This structure is significant in the mass transfer process of oxygen, and is conducive to microbial film internal layer microorganism and directly from liquid phase, obtains matrix.
In blodisc of the present invention and biological filter, molecular sieve filling has huge specific surface area and strong adsorptivity, adsorb the pollution substances such as the ammonia nitrogen in sewage simultaneously, make the ammonia nitrogen concentration in sewage can be lower than 40mg/L, reduce saprobia toxicity, improve microorganism active in treating processes, improve that biological treatment is nitrated, the function of denitrogenation and dephosphorization.
Blodisc has the area of 20-60% to be immersed in the waste water in unpowered biological treatment unit 10, and blodisc immerses a part for waste water, and the organism in its surface biological film absorption waste water, makes microorganism obtain nutrition.In the time producing the water surface, the moisture film of microbial film and drive thereof directly absorbs again oxygen from atmosphere.So repeatedly, the organism in waste water obtains oxygenolysis under aerobic effect in circulation.Microbial film in blodisc on molecular sieve also can, because of aging constantly self falling, precipitate in biological filter, and supernatant liquor imports soil at a slow speed by water distributor 11 and oozes system 13.
Soil oozes system 13 and is followed successively by surperficial sandy soils 14, metalling 16, filtering layer and water guide layer 17 from top to bottom at a slow speed.The sand mixture that surface sandy soils 14 is 0.2m, for serike system 12, according to Fu Luoli diatomite viscosity, sand and Fu Luoli diatomite blending ratio are 2:1-3:1; Rubble bed thickness 0.3m, is the rubble of particle diameter 1.2mm-1.5mm, and when being convenient to plant root growth, the porosity that its large particle diameter forms has promoted flowing of sewage; Filtering layer is the non-woven fabrics 15 of thickness 30mm, prevents from causing because of the loss of Fu Luoli diatomite, sandstone in surperficial sandy soils 14 obstruction of filtering layer and water guide layer 17.Filtering layer and the thick 50mm of water guide layer 17, be divided into two-layerly, and the mixed fillers of gravel and Wingdale is laid on upper strata, and for solidifying of phosphorus, gravel and zeolite mixed fillers are laid by lower floor, and for the purification once again of sewage, its packing material size is respectively 8mm-15mm and 15mm-30mm; At the bottom of the native face that oozes system 13, be provided with at a slow speed the gradient of i=0.1-0.5, to ensure that sewage self-conductance water layer flows out smoothly.
Native surperficial sandy soils kind of plant of oozing system 13 selects herbaceous plant to combine cultivation with xylophyta at a slow speed.Plantation xylophyta fairy bamboo can utilize its heavy root system, strengthens the combined effect of root system of plant and microorganism, increases porosity of soil to improve sewage popularity, promotes plant and oozes absorption and sorption effect in system at soil; Plantation herbaceous plant cyperus alternifolius, reed and again power flower, have good treatment effect to the pollution substance in sewage, and the heavy metal in sewage is had to efficient sorption.
Soil oozes system 13 sewage is used as liquid manure resource at a slow speed, and fairy bamboo, cyperus alternifolius and reed utilize in sewage and gather in after nutritive substance growth and maturity, can have economic benefit, and power flower have landscape effect again.At a slow speed soil ooze system 13 while moving bed body always in undersaturated condition, ensure dripping operation continuously under filter state.Soil oozes system 13 sewage after treatment and is promoted in outlet sump 18 via hydro-pump at a slow speed.
According to one embodiment of present invention, the present invention is that conventional single soil at a slow speed oozes 15 times of systems for the higher wastewater treatment efficiency of hydraulic load.
Claims (9)
1. ooze slowly a system unpowered biological rotating disk water purifying device, mainly by cylinder grid maker, unpowered biological treatment unit and at a slow speed the soil system of oozing form; Wherein:
One cylinder grid maker, for the solid of the food waste percolate that dams;
After entering high-order water inlet pipe, the sewage of cylinder grid maker processing inputs unpowered biological treatment unit;
Top in unpowered biological treatment unit is blodisc, is filled with polyethylene ball in blodisc, and polyethylene ball inside is hollow form, and inside is filled with light granules type molecular sieve filling, and spherome surface is covered with square opening; The polyethylene ball of filling is 3/4 of blodisc internal space; Blodisc is divided into the firstth district and Second Region by dividing plate; Bottom in unpowered biological treatment unit is the biological filter that is filled with flow model molecular sieve filling, and the periphery of blodisc is provided with waterwheel, and blodisc is immersed in biological filter; The waterwheel of the blodisc in corresponding firstth district of water outlet of high-order water inlet pipe, drives the blodisc in the firstth district to rotate, and the blodisc in the firstth district and the blodisc of Second Region, by geartransmission, are rotating under power indirectly; Supernatant liquor in biological filter imports soil at a slow speed by water distributor and oozes in system;
The soil system of oozing is followed successively by surperficial sandy soils, metalling, filtering layer and water guide layer from top to bottom at a slow speed, wherein surperficial sandy soils is sand mixture, for serike, filtering layer is non-woven fabrics, upper strata in filtering layer and water guide layer is equipped with the mixed fillers of gravel and Wingdale, and lower floor is equipped with gravel and zeolite mixed fillers; Soil oozes in system sewage importing after treatment outlet sump at a slow speed.
2. ooze slowly according to claim 1 system unpowered biological rotating disk water purifying device, wherein, be provided with by iron plate and be rolled into the roller screen that one section of sieve plate of sandwich forms after two cylinders in cylinder grid maker, the below of roller screen is tank; The shell of cylinder grid maker is semi-enclosed shell, and integral erection is on support, and needle-like swabbing pig Gu is Dinged a side of Roll sieve, and is positioned at the upper end of semi-enclosed shell.
3. according to oozing slowly system unpowered biological rotating disk water purifying device described in claim 1 or 2, wherein, the roller screen rotating speed of cylinder grid maker is 10～90 turn/min.
4. ooze slowly according to claim 1 system unpowered biological rotating disk water purifying device, wherein, under the effect through the sewage of cylinder grid processing at hydro-pump, enter high-order water inlet pipe.
5. ooze slowly according to claim 1 system unpowered biological rotating disk water purifying device, wherein, the 20-60% of blodisc area is immersed in biological filter.
6. ooze slowly according to claim 1 system unpowered biological rotating disk water purifying device, wherein, soil oozes the sand mixture that the surperficial sandy soils of system is 0.2m at a slow speed, and the diatomaceous volume mixture ratio of sand and Fu Luoli is 2:1-3:1, and Fu Luoli diatomite is laid on top layer; Rubble bed thickness 0.3m, for the rubble of particle diameter 1.2mm-1.5mm, filtering layer is the non-woven fabrics of thickness 30mm, the each thick 50mm of filtering layer and water guide layer, gravel, Wingdale mixed fillers are laid in upper strata, for solidifying of phosphorus, gravel, zeolite mixed fillers are laid by lower floor, for the purification once again of sewage, its filtering layer packing material size is 8mm-15mm, and water guide layer packing material size is 15mm-30mm; Soil oozes the gradient that the bottom of system is i=0.1-0.5 at a slow speed.
7. utilize and ooze slowly the method that system unpowered biological rotating disk water purifying device carries out sewage purification described in claim 1:
Sewage flows through and enters in tank from the hole of cylinder grid, solid dams in the screen surface of cylinder cylinder grid, in the action of gravity of drum-inclined, under the centrifugal concussion effect that cylinder rotates and the impellent of reciprocating cleaning push pedal, drop below cylinder grid maker, in first inputting in unpowered biological treatment unit sewage after the sewage of cylinder grid processing enters high-order water inlet pipe, organism carries out aerobic biodegradation, the flow model molecular sieve filling of then flowing through in biological filter, bottom, further process the pollution substance in water, the blodisc that finally enters Second Region further carries out aerobe processing, making itrogenous organic substance in sewage is first ammonia nitrogen by heterotroph microbial transformation, then under aerobic condition, the effect of and nitrococcus nitrated by aerobic autotrophic type, ammonia nitrogen in waste water is oxidized to nitrite nitrogen or nitrate nitrogen, finally under anoxia condition, utilize denitrifying bacterium that nitrite and nitrate transformation are overflowed from waste water for nitrogen, thereby reach the object of denitrogenation,
Blodisc is immersed in the waste water in unpowered biological treatment unit, and blodisc immerses a part for waste water, and the organism in its surface biological film absorption waste water, makes microorganism obtain nutrition; In the time producing the water surface, the moisture film of microbial film and drive thereof directly absorbs again oxygen from atmosphere; So circulation repeatedly, organism in waste water obtains oxygenolysis under aerobic effect, microbial film in blodisc on molecular sieve also can, because of aging constantly self falling, precipitate in biological filter, and supernatant liquor imports soil at a slow speed by water distributor and oozes system;
The surperficial sandy soils that soil oozes system is at a slow speed for serike system, and the porosity that its large particle diameter forms has promoted flowing of sewage; By filtering layer, filtering layer and water guide layer, sewage is purified once again;
Native surperficial sandy soils kind of oozing system is implanted with the plant of heavy root system at a slow speed, strengthens the combined effect of root system of plant and microorganism, increases Fu Luoli diatomite porosity to improve sewage popularity, promotes plant and oozes absorption and sorption effect in system at soil;
Soil oozes in system water importing outlet sump up to standard after treatment at a slow speed.
8. method according to claim 7, wherein, the solid particulate that cylinder grid maker is separated, the mud that unpowered biological treatment unit is discharged are mixed into the fertile organic fertilizer that produces of windrow, reach the effect that resource reclaims.
9. method according to claim 7, wherein, the part effluent recycling that soil oozes system is at a slow speed to the water inlet of unpowered biological treatment unit, and regulating water quality also stimulates microorganism growth process secretion secondary substance.
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| CN104671600A (en) * | 2015-01-29 | 2015-06-03 | 广州市设计院 | Sewage pretreatment device with slag-removal, coupling and air-driving biological rotating disc integrated structure |
| CN107055757A (en) * | 2017-06-09 | 2017-08-18 | 天津市环境保护技术开发中心设计所 | Molecular sieve runner biological sewage cleaning system |
| CN111892245A (en) * | 2020-08-03 | 2020-11-06 | 岭南水务集团有限公司 | Mountain area unpowered algae rotating biological disk sewage treatment system |
| CN114162961A (en) * | 2021-09-29 | 2022-03-11 | 重庆大学 | Unpowered biological rotating cage, sewage treatment system and sewage treatment method |
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| CN203625197U (en) * | 2013-10-12 | 2014-06-04 | 浙江德安科技股份有限公司 | Water treatment device |
| CN203653330U (en) * | 2014-01-21 | 2014-06-18 | 东北石油大学 | Integrated denitrifying and aerating biological filter |
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| CN104671600A (en) * | 2015-01-29 | 2015-06-03 | 广州市设计院 | Sewage pretreatment device with slag-removal, coupling and air-driving biological rotating disc integrated structure |
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| CN111892245A (en) * | 2020-08-03 | 2020-11-06 | 岭南水务集团有限公司 | Mountain area unpowered algae rotating biological disk sewage treatment system |
| CN114162961A (en) * | 2021-09-29 | 2022-03-11 | 重庆大学 | Unpowered biological rotating cage, sewage treatment system and sewage treatment method |
| CN114162961B (en) * | 2021-09-29 | 2023-10-20 | 重庆大学 | Unpowered biological rotating cage, sewage treatment system and sewage treatment method |
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