CN104291520B - One way of life sewage disposal and reuse method - Google Patents
One way of life sewage disposal and reuse method Download PDFInfo
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- CN104291520B CN104291520B CN201410437521.3A CN201410437521A CN104291520B CN 104291520 B CN104291520 B CN 104291520B CN 201410437521 A CN201410437521 A CN 201410437521A CN 104291520 B CN104291520 B CN 104291520B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1242—Small compact installations for use in homes, apartment blocks, hotels or the like
- C02F3/1247—Small compact installations for use in homes, apartment blocks, hotels or the like comprising circular tanks with elements, e.g. decanters, aeration basins, in the form of segments, crowns or sectors
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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Abstract
The present invention relates to field of environment engineering, refer to the method for residential quarters sanitary sewage disposal and recycling especially.The present invention adopts following scheme: one way of life sewage disposal and reuse method, it is characterized in that: sanitary sewage is carried out classified emission, the Heisui River of high density and the buck of lower concentration is divided into from the different of source according to sewage character, Heisui River row is from rear, pass through anaerobic treatment pool successively, aeration contact-oxidation pool, aeration high resistant ecological pool, aeration low resistant ecological pool and ecological precipitation process pond, equalizing tank is entered after Heisui River after process and buck merge, the process of subsurface infiltration device is sent into after equalizing tank regulates, the water of this subsurface infiltration device process is back to after sterilization flushes the toilet or qualified discharge.By adopting such scheme, the present invention can for existing Sewage treatment systems Problems existing, propose a kind of can the processing method of effectively treatment in situ and reuse sanitary sewage.
Description
Technical field
The present invention relates to field of environment engineering, refer to the method for residential quarters sanitary sewage disposal and recycling especially.
Background technology
Traditional processing mode is taked in the large multiprocessing of current China city domestic sewage, namely being collected by sewage collecting pipe network and unifiedly after sewage be transported to sewage work and process, there is following defect in this processing mode: 1 sewage treatment process facility and sewage network construction cost high; 2 sewage often need consumption of power in course of conveying, add working cost; 3 sewage easily leak when carrying in pipe network, cause pollution; 4 modes focused on make Water circulation again to build pipe network or to transport, and add the cost of reuse.Thus, outstanding along with shortage of water resources problem, and based on the existing economic condition of China, the development community life sewage treatment in situ of Cheap highly effective and the technology of reuse, be of great practical significance.The in-situ treatment technology of sanitary sewage develops slow in China, its technology is divided into three major types substantially: 1 materializing strategy technology, namely flocculation agent is utilized to carry out discharge after process precipitates to sanitary sewage, also referred to as enhabced primary treatment, its advantage is that treatment process is simple, shortcoming is that processing costs is larger, and treatment effect awaits improving; 2 biologic treating techniques, its technique is similar to small-sized domestic sewage treatment process, and also referred to as how case integrated technique, its advantage stablely can ensure treatment effect, and shortcoming is that working cost is larger, management maintenance is cumbersome; 3 Ecological Disposal techniques, common are the technology such as ecological pond, artificial swamp, subsurface infiltration, its advantage be processing costs low, there is landscape effect, shortcoming is that technique is subject to place, weather effect larger.
The thinking that the original position eco-treatment technology of current sanitary sewage is common is that sanitary sewage is unified collection and treatment, be not carry out categorised collection according to the difference of sanitary sewage occurring source sewage characteristic to process respectively (categorised collection as ight soil water and laundry water), and current domestic sewage ecological process often have ignored the synergy of multiple relatively independent ecosystem and the independent ecosystem separately to the adaptability of different concns sanitary sewage.If publication number is the patent of CN1266023, although consider that shellfish, fish are to the effect of purifying domestic sewage, but collection of not classified by sanitary sewage processes, and just utilize single ecological pond to process, be not designed to multistage can its operational conditions of Artificial Control and can the ecological box system of multistage series winding of handled easily; Publication number is the patent of CN1312231, although consider and family's organic waste processed together with sanitary sewage, but do not consider and Heisui River high for organic concentration and the low buck categorised collection of organic concentration are processed respectively, but aerobic treatment after sanitary sewage being entered together with family organic waste anaerobic pond fermentation, so large volume low-concentration buck enter the efficiency that can affect anaerobic digestion, and its subsequent process adopts biological process instead of utilizes ecological method, is unfavorable for that sanitary sewage disposal combines with residential quarters landscape construction; Publication number is the patent of CN1523171, although consider using after grey water handing as the single reuse approach of flushing the toilet, but do not relate to the sterilization problems of the process in Heisui River and the aftertreatment water of process, specifically do not mention waste water treatment device detailed configuration yet.Thus the present invention intends for the deficiencies in the prior art, finds the scheme of a more rational community domestic wastewater treatment and reuse.
Summary of the invention
The present invention is directed to existing Sewage treatment systems Problems existing, propose a kind of can the processing method of effectively treatment in situ and reuse sanitary sewage.
Realize above-mentioned purpose, the present invention adopts following scheme: one way of life sewage disposal and reuse method, it is characterized in that: sanitary sewage is carried out classified emission, the Heisui River of high density and the buck of lower concentration is divided into according to the difference in sewage character and source, Heisui River row is from rear, pass through anaerobic treatment pool successively, aeration contact-oxidation pool, aeration high resistant ecological pool, aeration low resistant ecological pool and ecological precipitation process pond, equalizing tank is entered after water after process and buck merge, the process of subsurface infiltration device is sent into after equalizing tank regulates, the water of this subsurface infiltration device process is back to after sterilization flushes the toilet or qualified discharge.
The further setting of the present invention is: the treatment time of described anaerobic treatment pool is 36-48 hour, the aeration contact-oxidation pool treatment time is 20-28 hour, the aeration high resistant ecological pool treatment time is 20-28 hour, the aeration low resistant ecological pool treatment time is 20-28 hour, the ecological precipitation process pond treatment time is 2-4 hour, and Heisui River after said units process and buck merge after the equalizing tank treatment time be 4-8 hour, hydraulic load in subsurface infiltration device controls between 12.5-16.7cm/d.
The further setting of the present invention is: Heisui River flow through anaerobic treatment pool, aeration contact-oxidation pool, aeration high resistant ecological pool, aeration low resistant ecological pool, ecological precipitation process pond and equalizing tank time, all adopt bottom water inlet top water outlet mode implement.
The further setting of the present invention is: aeration contact-oxidation pool, aeration high resistant ecological pool and the low resistant ecological pool of aeration provide aeration by aerator, gas-water ratio in aeration contact-oxidation pool is 8-10:1, gas-water ratio in aeration high resistant ecological pool is 6-8:1, gas-water ratio in the low resistant ecological pool of aeration is 3-5:1, in described aeration contact-oxidation pool, throw in 30% soft-filler according to volume ratio.
The further setting of the present invention is: aeration high resistant ecological pool, aeration low resistant ecological pool and top, ecological precipitation process pond are equipped with plant growing frame, the filler mixed according to volume 1:1 by gac and calcium phosphate powder is placed in plant growing frame, plant in filler and be implanted with plant, contact with the water surface in aeration high resistant ecological pool, aeration low resistant ecological pool and ecological precipitation process pond respectively bottom planting frame.
The further setting of the present invention is: be provided with transparent heat insulating gas collection cover body above aeration contact-oxidation pool, aeration high resistant ecological pool, aeration low resistant ecological pool, ecological precipitation process pond, transparent heat insulating gas collection cover body collects the gas of gas that in above-mentioned aeration and biochemical reaction process, air blast enters and generation, and is sent to by the gas of collection in the gas distribution pipe arranged in subsurface infiltration device.
The further setting of the present invention is: described gas distribution pipe adopts the DN150PVC pipe that opening diameter is 2mm, percentage of open area is 30% to make, gas distribution pipe distance earth's surface 30-70cm, gas distribution pipe surface Jacket thickness is the non-woven fabrics of 8-12mm, and gas distribution pipe is arranged according to the density of interval 1-1.5m.
The further setting of the present invention is: be provided with animal and plant in described aeration high resistant ecological pool, and plant species is one or more in parasol grass, aquatic Canna generalis Bailey, reed, water arum, and plant growing density domination is at 15-30/m
2, animal species is catfish, throws in density domination at 2-4 tail/m
3, be provided with animal and plant in the low resistant ecological pool of aeration, plant species is one or more in Spiked Loosestrife, iris, chrysanthemum calamus, Scirpus tabernaemontani, cattail, and plant growing density domination is at 20-30/m
2, animal species is catfish, loach, mosquito fish, and wherein catfish throws in density domination at 1-3 tail/m
3, loach throws in density domination at 4-6 tail/m
3, mosquito fish throws in density domination at 8-12 tail/m
3; Bottom the pond in ecological precipitation process pond, settling region is set, the volume of settling region accounts for 20% of ecological pool volume, the animal and plant arranged in ecological precipitation process pond, plant species is one or more in common calla, Herba Houttuyniae, tawny daylily, water arum, and plant growing density domination is at 20-30/m
2, animal species is one or more in Carasslus auratus, loach, spiral shell, grass shrimp, throws in density domination at 3-7 tail/m
3.
The further setting of the present invention is: regulate Heisui River and buck after process to enter subsurface infiltration device by water distributor after gathering through equalizing tank, subsurface infiltration device outside is separated by geotextile and surrounding soil, subsurface infiltration device height is 1.5-2m, subsurface infiltration bottom of device is placed and is received water pipe, receiving water pipe adopts the DN50PVC pipe that opening diameter is 2mm, percentage of open area is 10% to make, outer wrap is thick is the non-woven fabrics of 8-12mm, arrange according to the density of interval 1-1.5m, subsurface infiltration device inside filling soil except pipe fitting.
The further setting of the present invention is: the water outlet through the process of subsurface infiltration device adopts the sterilization of ozone, ultraviolet lamp or chlorine technique, and the injected volume adopting oxygenant during ozonization is 3-5g/m
3, adopt during ultraviolet lamp disinfection and adopt 4W ultraviolet lamp, disinfecting time controls at 5-7min/ ton sewage, and when adopting chlorine technique to sterilize, oxygenant injected volume is 8-10g/m
3.
By adopting such scheme, the invention has the beneficial effects as follows:
One, pass through at source separation, by Heisui River high for few for volume concentration and the low Ash Water Separator of the large concentration of volume, and only adopt the artificial-strengthening means such as aeration to process to the Heisui River of high density, thus reduce processing cost, ensure that effluent quality and improve processing efficiency;
Two, in usage on black water technical process unit, be provided with the multi-level unit in anaerobic treatment pool, aeration contact-oxidation pool, aeration high resistant ecological pool, aeration low resistant ecological pool, ecological precipitation process pond, the living species adapting to concentration of wastewater feature at different levels is placed respectively in unit at different levels, and control corresponding process operating conditions, ensure that the stability of biotope microecosystem at different levels and the diversity of whole treatment system species, thus be conducive to improving treatment effect;
Three, Heisui River is gathered with buck after aeration reinforcing process, part COD in buck can be utilized as carbon source, be conducive to denitrifying bacteria effectively to process further the nitrate nitrogen in Heisui River after intensive treatment, thus improve system denitrification ability and be applicable to reflow step can omit, reduce processing cost;
Four, by subsurface infiltration device, advanced treatment is carried out to the Heisui River after gathering and buck, effectively can remove organism, nitrogen, phosphorus and the virus etc. that gather in rear sewage, ensure that the stability of effluent quality, and subsurface infiltration device adopts unpowered operation scheme, reduces processing cost;
Five, by aeration contact-oxidation pool, aeration high resistant ecological pool, the low resistant ecological pool of aeration, the transparent heat insulating gas skirt arranged above ecological precipitation process pond, the advantage that insulation is conducive to the growth of ecological response unit living species in winter can be played on the one hand, the gas effectively can collecting air and the generation blasted in said units aeration step and biochemical reaction process on the other hand passes into subsurface infiltration device to carry out recycling and deodorization, not only avoid foul smell diffusion in sewage air blast biochemical treatment process, pathogenic agent is with problems such as aerosol diffusion, and can be the oxygen supply that subsurface infiltration device provides certain, improve the handling property of subsurface infiltration device,
Six, gac and calcium phosphate powder is added in the plant growing frame arranged above aeration high resistant ecological pool, aeration low resistant ecological pool, ecological precipitation process pond, not only can remove a part of stink by the adsorption of gac, and system can be improved to the removal effect of phosphorus by the adsorption of calcium phosphate powder, improve the handling property on sewage and the impact on surrounding enviroment;
Seven, the effluent quality through the process of this processing method is better, can be back to and flush the toilet, can effectively reach water-saving object after ozone, ultraviolet or chlorine disinfectant.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention.
Embodiment
As shown in Figure 1, one way of life sewage disposal and reuse method, sanitary sewage is carried out classified emission collection, the Heisui River of high density and the buck of lower concentration is divided into from the different of source according to sewage character, Heisui River row is from rear, successively by anaerobic treatment pool 1, aeration contact-oxidation pool 2, aeration high resistant ecological pool 3, aeration low resistant ecological pool 4 and ecological precipitation process pond 5, equalizing tank 6 is entered after Heisui River after process and buck merge, after equalizing tank 6 regulates, send into subsurface infiltration device 7 process, the water of this subsurface infiltration device 7 process is back to after sterilization flushes the toilet or qualified discharge.
In embodiments of the present invention, the treatment time of described anaerobic treatment pool 1 is 36-48 hour, aeration contact-oxidation pool 2 treatment time is 20-28 hour, aeration high resistant ecological pool 3 treatment time is 20-28 hour, aeration low resistant ecological pool 4 treatment time is 20-28 hour, ecological precipitation process pond 5 treatment time is 2-4 hour, and Heisui River after said units process and buck merge after equalizing tank 6 treatment time be 4-8 hour, hydraulic load in subsurface infiltration device 7 controls between 12.5-16.7cm/d.
In embodiments of the present invention, Heisui River flow through anaerobic treatment pool 1, aeration contact-oxidation pool 2, aeration high resistant ecological pool 3, aeration low resistant ecological pool 4, ecological precipitation process pond 5 and equalizing tank 6 time, all adopt bottom water inlet top water outlet mode implement.
In embodiments of the present invention, aeration contact-oxidation pool 2, aeration high resistant ecological pool 3 and the low resistant ecological pool 4 of aeration provide aeration by aerator, gas-water ratio in aeration contact-oxidation pool 2 is 8-10:1, gas-water ratio in aeration high resistant ecological pool 3 is 6-8:1, gas-water ratio in the low resistant ecological pool 4 of aeration is 3-5:1, in described aeration contact-oxidation pool 2, throw in 30% soft-filler according to volume ratio.
In embodiments of the present invention, aeration high resistant ecological pool 3, aeration low resistant ecological pool 4 and top, ecological precipitation process pond 5 are equipped with plant growing frame 8, the filler mixed according to volume 1:1 by gac and calcium phosphate powder is placed in plant growing frame, plant in filler and be implanted with plant, contact with the water surface in aeration high resistant ecological pool 3, aeration low resistant ecological pool 4 and ecological precipitation process pond 5 respectively bottom planting frame.
In embodiments of the present invention, transparent heat insulating gas collection cover body 9 is provided with above aeration contact-oxidation pool 2, aeration high resistant ecological pool 3, aeration low resistant ecological pool 4, ecological precipitation process pond 5, transparent heat insulating gas collection cover body 9 collects the gas of gas that in above-mentioned aeration and biochemical reaction process, air blast enters and generation, and is sent to by the gas of collection in the gas distribution pipe 71 arranged in subsurface infiltration device 7.
In embodiments of the present invention, described gas distribution pipe 71 adopts the DN150PVC pipe that opening diameter is 2mm, percentage of open area is 30% to make, gas distribution pipe 71 is apart from earth's surface 30-70cm, and the surperficial Jacket thickness of gas distribution pipe 71 is the non-woven fabrics of 8-12mm, and gas distribution pipe 71 is arranged according to the density of interval 1-1.5m.
In embodiments of the present invention, be provided with animal and plant in described aeration high resistant ecological pool 3, plant species is one or more in parasol grass, aquatic Canna generalis Bailey, reed, water arum, and plant growing density domination is at 15-30/m
2, animal species is catfish, throws in density domination at 2-4 tail/m
3, be provided with animal and plant in the low resistant ecological pool 4 of aeration, plant species is one or more in Spiked Loosestrife, iris, chrysanthemum calamus, Scirpus tabernaemontani, cattail, and plant growing density domination is at 20-30/m
2, animal species is catfish, loach, mosquito fish, and wherein catfish throws in density domination at 1-3 tail/m
3, loach throws in density domination at 4-6 tail/m
3, mosquito fish throws in density domination at 8-12 tail/m
3; Bottom the pond in ecological precipitation process pond 5, settling region 51 is set, the volume of settling region 51 accounts for 20% of ecological pool volume, the animal and plant arranged in ecological precipitation process pond 5, plant species is one or more in common calla, Herba Houttuyniae, tawny daylily, water arum, and plant growing density domination is at 20-30/m
2, animal species is one or more in Carasslus auratus, loach, spiral shell, grass shrimp, throws in density domination at 3-7 tail/m
3.
In embodiments of the present invention, Heisui River and buck after process is regulated to enter subsurface infiltration device 7 by water distributor after gathering through equalizing tank 6, subsurface infiltration device 7 outside is separated by geotextile and surrounding soil, subsurface infiltration device 7 is highly 1.5-2m, place bottom subsurface infiltration device 7 and receive water pipe 72, receiving water pipe 72 adopts the DN50PVC pipe that opening diameter is 2mm, percentage of open area is 10% to make, outer wrap is thick is the non-woven fabrics of 8-12mm, arrange according to the density of interval 1-1.5m, subsurface infiltration device 7 inside filling soil except pipe fitting.
In embodiments of the present invention, the water outlet that subsurface infiltration device 7 processes adopts the sterilization of ozone, ultraviolet lamp or chlorine technique, and the injected volume adopting oxygenant during ozonization is 3-5g/m
3, adopt during ultraviolet lamp disinfection and adopt 4W ultraviolet lamp, disinfecting time controls at 5-7min/ ton sewage, and when adopting chlorine technique to sterilize, oxygenant injected volume is 8-10g/m
3.
Concrete case study on implementation,
Adopt this processing method to dispose of sewage in residential quarters, Oujiangkou new district, Wenzhou City, community population adds up to 1000 people, produces sewage 150m every day
3, the architecture indoor draining of every, community is taked to be separated system, and the pvc pipe that namely flushing water and kitchen drainage gather the rear DN150 that adopts is collected, the pvc pipe collection of bath water and laundry water employing DN150, the Heisui River 50m of collection every day in community
3, buck 100m
3.First Heisui River after collection be aggregated in the anaerobic treatment pool buried underground below greenbelt in little residential region carries out anaerobic treatment, and anaerobic treatment pool adopts glass steel material, and useful volume is 100m
3, the residence time of Heisui River in anaerobic treatment pool is 48 hours.Heisui River after anaerobic treatment pool process is risen in aeration contact-oxidation pool by submersible pump and processes, and aeration contact-oxidation pool useful volume is 50m
3, hydraulic detention time is 24 hours, is highly 2m, adopts half buried steel and concrete structure, throws in 15m in contact-oxidation pool
3cable-styled filler, bottom arranges aeration plate, by external Root's blower air feed, and by Valve controlling, ensures that gas-water ratio is 8:1.Heisui River after the process of aeration contact-oxidation pool is acted on by gravity flow, enters reaction tank from the bottom of aeration high resistant ecological pool, and aeration high resistant ecological pool useful volume is 50m
3, hydraulic detention time is 24 hours, height 2m, adopt the steel and concrete structure that half is buried, bottom arranges aeration plate, and aeration is originated same contact-oxidation pool, gas-water ratio controls as 6:1, top arranges steel plant growing frame, frame height 30cm, the filler that inner filling 15cm is high, filler is the composition of proportions according to 1:1 of the activated carbon granule of 2cm and calcium phosphate powder by particle diameter, it is 1cm that frame bottom opens aperture diameter, and plantation parasol grass, aquatic Canna generalis Bailey, reed, water arum Four Plants in frame, planting density is 20/m
2, in addition, by 2 tails/m in aeration high resistant ecological pool
3density throw in catfish.Heisui River after the process of aeration high resistant ecological pool enters pond body bottom the low resistant ecological pool of aeration, the conditions such as the pond body structure of aeration low resistant ecological pool, pond body size, hydraulic detention time, aeration plate structure, aeration source, plant growing mount structure and filler preparation are identical with aeration high resistant ecological pool, gas-water ratio controls as 3:1, the animals and plants species that Chi Tizhong is arranged are Spiked Loosestrife, iris, chrysanthemum calamus, Scirpus tabernaemontani, cattail, catfish, loach, mosquito fish, and plant growing density domination is at 20/m
2, catfish throws in density domination at 2 tails/m
3, loach throws in density domination at 5 tails/m
3, mosquito fish throws in density domination at 10 tails/m
3.Heisui River after the process of aeration low resistant ecological pool enters ecological precipitation process pond, and ecological precipitation process pond useful volume is 6.25m
3adopt steel and concrete structure, the conditions such as plant growing mount structure and filler preparation are identical with aeration high resistant ecological pool, the volume of settling region accounts for 20% of ecological pool volume, the swash plate being spaced apart 3cm is placed according to 45 degree, the animals and plants species arranged in ecological precipitation process pond are common calla, Herba Houttuyniae, tawny daylily, water arum, Carasslus auratus, loach, spiral shell, grass shrimp, and plant growing density domination is at 20-30/m
2, the input density domination of Carasslus auratus, loach, spiral shell, grass shrimp is at 5 tails/m
3.Above above-mentioned aeration contact-oxidation pool, aeration high resistant ecological pool, aeration low resistant ecological pool, ecological precipitation process pond, equal placing height is the transparent heat insulating gas skirt of 100cm, cover body is that the double-deck synthetic glass of 4mm and aluminium alloy are formed by thickness, it is that the air of 2mm is to increase the heat insulation function of stay-warm case that double-deck synthetic glass inside accompanies thickness, the Chi Tishang in each pond is arranged on below cover body, have perforate above cover body and connect the pvc pipe of DN150, the gas produced in aeration and biochemical reaction is passed in the gas distribution pipe of subsurface wastewater infiltration system after collecting above cover body.Gas distribution pipe adopts the DN150PVC pipe that opening diameter is 2mm, percentage of open area is 30% to make, and gas distribution pipe distance earth's surface 50cm, surperficial Jacket thickness is the non-woven fabrics of 10mm, and gas distribution pipe is arranged according to the density of interval 1m.Entering equalizing tank after Heisui River after above-mentioned processing unit processes and buck merge, is steel and concrete structure at equalizing tank, and pond body useful volume is 37.5m
3, gathering rear sewage in the water body residence time of Chi Tizhong is 6 hours, after the adjustment of 6 hours, gathers sewage and enters subsurface wastewater infiltration system device and process.The floor space of subsurface infiltration device is 900m
2, Altitude control is at 1.5m, the greenery patches inside community is utilized to transform, the geotextile enclosure that subsurface infiltration device surrounding is 5mm by thickness forms, Heisui River after gathering and buck enter subsurface infiltration device by water distributor, water distributor adopts opening diameter to be 2mm, percentage of open area be 10% DN50PVC pipe make, outer wrap is thick is the non-woven fabrics of 10mm, water distributor distance earth's surface 30cm, arrange according to the density of interval 1m, in addition, place in subsurface infiltration bottom of device and receive water pipe, receiving water pipe adopts opening diameter to be 2mm, percentage of open area be 10% DN50PVC pipe make, outer wrap is thick is the non-woven fabrics of 10mm, arrange according to the density of interval 1m.Green soil is filled, surface grafting lawn in subsurface infiltration device inside except above-mentioned pipe fitting.The water outlet of subsurface infiltration device utilizes useful volume for 3m
3wet well collect, arrange ozonization instrument in wet well, the injected volume of ozone is 3-5g/m
3, the water outlet after sterilization reaches the prescribed value in " urban reclaimed water water quality standard " (GB/T18920-2002), wherein about 50m
3be back to and flush the toilet.Achieve effective reuse water resource.
Claims (8)
1. one way of life sewage disposal and reuse method, it is characterized in that: sanitary sewage is carried out classified emission, the Heisui River of high density and the buck of lower concentration is divided into from the different of source according to sewage character, Heisui River row is from rear, pass through anaerobic treatment pool successively, aeration contact-oxidation pool, aeration high resistant ecological pool, aeration low resistant ecological pool and ecological precipitation process pond, equalizing tank is entered after Heisui River after process and buck merge, the process of subsurface infiltration device is sent into after equalizing tank regulates, the water of this subsurface infiltration device process is back to after sterilization flushes the toilet or qualified discharge, described aeration contact-oxidation pool, aeration high resistant ecological pool and the low resistant ecological pool of aeration provide aeration by aerator, gas-water ratio in aeration contact-oxidation pool is 8-10:1, gas-water ratio in aeration high resistant ecological pool is 6-8:1, gas-water ratio in the low resistant ecological pool of aeration is 3-5:1, in described aeration contact-oxidation pool, soft-filler is thrown according to volume ratio 30%, aeration high resistant ecological pool, aeration low resistant ecological pool and top, ecological precipitation process pond are equipped with plant growing frame, the filler mixed according to volume 1:1 by gac and calcium phosphate powder is placed in plant growing frame, plant in filler and be implanted with plant, bottom planting frame respectively with aeration high resistant ecological pool, water surface contact in aeration low resistant ecological pool and ecological precipitation process pond.
2. sanitary sewage disposal according to claim 1 and reuse method, it is characterized in that: the treatment time of described anaerobic treatment pool is 36-48 hour, the aeration contact-oxidation pool treatment time is 20-28 hour, the aeration high resistant ecological pool treatment time is 20-28 hour, the aeration low resistant ecological pool treatment time is 20-28 hour, the ecological precipitation process pond treatment time is 2-4 hour, and through anaerobic treatment pool, aeration contact-oxidation pool, aeration high resistant ecological pool, be 4-8 hour in the equalizing tank treatment time after Heisui River after aeration low resistant ecological pool and the process of ecological precipitation process pond and buck merge, hydraulic load in subsurface infiltration device controls between 12.5-16.7cm/d.
3. sanitary sewage disposal according to claim 2 and reuse method, it is characterized in that: Heisui River flow through anaerobic treatment pool, aeration contact-oxidation pool, aeration high resistant ecological pool, aeration low resistant ecological pool, ecological precipitation process pond and equalizing tank time, all adopt bottom water inlet top water outlet mode implement.
4. sanitary sewage disposal according to claim 3 and reuse method, it is characterized in that: above aeration contact-oxidation pool, aeration high resistant ecological pool, aeration low resistant ecological pool, ecological precipitation process pond, be provided with transparent heat insulating gas collection cover body, transparent heat insulating gas collection cover body collects the gas of gas that in above-mentioned aeration and biochemical reaction process, air blast enters and generation, and is sent to by the gas of collection in the gas distribution pipe arranged in subsurface infiltration device.
5. sanitary sewage disposal according to claim 4 and reuse method, it is characterized in that: described gas distribution pipe adopts the pvc pipe that opening diameter is 2mm, percentage of open area is 30% to make, gas distribution pipe distance earth's surface 30-70cm, gas distribution pipe surface Jacket thickness is the non-woven fabrics of 8-12mm, and gas distribution pipe is arranged according to the density of interval 1-1.5m.
6. sanitary sewage disposal according to claim 5 and reuse method, it is characterized in that: in described aeration high resistant ecological pool, be provided with animal and plant, plant species is one or more in parasol grass, aquatic Canna generalis Bailey, reed, water arum, and plant growing density domination is at 15-30/m
2, animal species is catfish, throws in density domination at 2-4 tail/m
3, be provided with animal and plant in the low resistant ecological pool of aeration, plant species is one or more in Spiked Loosestrife, iris, chrysanthemum calamus, Scirpus tabernaemontani, cattail, and plant growing density domination is at 20-30/m
2, animal species is catfish, loach, mosquito fish, and wherein catfish throws in density domination at 1-3 tail/m
3, loach throws in density domination at 4-6 tail/m
3, mosquito fish throws in density domination at 8-12 tail/m
3; Bottom the pond in ecological precipitation process pond, settling region is set, the volume of settling region accounts for 20% of ecological pool volume, the animal and plant arranged in ecological precipitation process pond, plant species is one or more in common calla, Herba Houttuyniae, tawny daylily, water arum, and plant growing density domination is at 20-30/m
2, animal species is one or more in Carasslus auratus, loach, spiral shell, grass shrimp, throws in density domination at 3-7 tail/m
3.
7. sanitary sewage disposal according to claim 6 and reuse method, it is characterized in that: regulate Heisui River and buck after process to enter subsurface infiltration device by water distributor after gathering through equalizing tank, subsurface infiltration device outside is separated by geotextile and surrounding soil, subsurface infiltration device height is 1.5-2m, subsurface infiltration bottom of device is placed and is received water pipe, receiving water pipe adopts opening diameter to be 2mm, percentage of open area be 10% pvc pipe make, outer wrap is thick is the non-woven fabrics of 8-12mm, arrange according to the density of interval 1-1.5m, subsurface infiltration device inside filling soil except pipe fitting.
8. sanitary sewage disposal according to claim 7 and reuse method, is characterized in that: through the water of subsurface infiltration device process, and adopt the sterilization of ozone, ultraviolet lamp or chlorine technique, the injected volume adopting oxygenant during ozonization is 3-5g/m
3, adopt during ultraviolet lamp disinfection and adopt 4W ultraviolet lamp, disinfecting time controls at 5-7min/ ton sewage, and when adopting chlorine technique to sterilize, oxygenant injected volume is 8-10g/m
3.
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| CN107973491A (en) * | 2017-12-26 | 2018-05-01 | 广州太和水生态科技有限公司 | Ecoscape closet system |
| CN110054369B (en) * | 2019-05-31 | 2020-05-12 | 山东大学 | Method for achieving standard operation in winter by ecological configuration of oil extraction high-salinity sewage constructed wetland |
| CN110451735A (en) * | 2019-08-22 | 2019-11-15 | 陈春虹 | Heisui River, buck integrated sewage disposal pond |
| CN110683715A (en) * | 2019-10-30 | 2020-01-14 | 徐州工程学院 | Rural domestic sewage recycling classification high-efficiency treatment system |
| CN113023885B (en) * | 2021-04-07 | 2022-06-07 | 知和环保科技有限公司 | Process for directionally strengthening sludge and application method thereof |
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Inventor after: Zhao Min Inventor after: Zheng Xiangyong Inventor after: Zhang Yejian Inventor after: Cheng Tianxing Inventor after: Yan Li Inventor after: Ye Hairen Inventor after: Zhu Dingsong Inventor before: Zheng Xiangyong Inventor before: Zhang Yejian Inventor before: Zhao Min Inventor before: Cheng Tianxing Inventor before: Yan Li Inventor before: Ye Hairen Inventor before: Zhu Dingsong |