CN204779250U - A biological ecological composite treatment device for rural sewage treatment - Google Patents

A biological ecological composite treatment device for rural sewage treatment Download PDF

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Publication number
CN204779250U
CN204779250U CN201520420115.6U CN201520420115U CN204779250U CN 204779250 U CN204779250 U CN 204779250U CN 201520420115 U CN201520420115 U CN 201520420115U CN 204779250 U CN204779250 U CN 204779250U
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pool
water
pond
aeration tank
ecological
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李英杰
张振文
王佩
白小满
杨林
张倩
马琪
孙长顺
王西锋
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SHAANXI ENVIRONMENT SCIENCE RESEARCH INSTITUTE
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SHAANXI ENVIRONMENT SCIENCE RESEARCH INSTITUTE
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The utility model discloses a biological ecological composite treatment device for rural sewage treatment, reinforce preliminary treatment pond, aeration tank and the ecological pool including the anaerobism of separating each other, establishing ties in proper order, the preliminary treatment pond that the preliminary treatment pond includes three mutual intercommunication is reinforceed to the anaerobism, is linked together with the aeration tank, be equipped with combined packing in the aeration tank, the tee bend honeycomb duct runs through to combined packing bottom and blast aeration ware mutual disposition, the aeration tank ecological pool of intercommunication, the ecological pool includes two mutual serial connectivity's the sub - pool, and every sub - pool includes all that the shallow water wetland is distinguished and the deep water wetland is distinguished, and the deep water wetland district of going up the alien pool sets up floats a swash plate sediment composite set, terminal sub - pool deep water wetland district configuration aquatic plant and fish, set up the return sludge pump unit in the ecological pool, plant on the bank all around has the trees that the tree crown is dense. The utility model discloses optimize the traditional handicraft, prolonged sewage dwell time, improved the mixability of sewage with activated sludge, have characteristics such as cost is low, the running cost is low, high -efficient, easy popularization.

Description

For the biological and ecological composite handling arrangement of rural sewage treatment
Technical field
The utility model relates to field of environmental engineering can the biological and ecological treatment system of biochemical treatment sewage, is specifically related to the biological and ecological composite handling arrangement processed for country sewage (comprising sanitary sewage and breeding wastewater etc.).
Background technology
Along with the development of China's economic society and the raising of living standards of the people, countryside sewage treating is more and more urgent, has become a Demand of Nation.Explicitly call for about the notice (ring is done [2013] No. 5) printing and distributing " national natural, ecologicals in 2013 and rural environmental protection key work "; accelerate to solve rural area and give prominence to environmental problem; expand rural environment and renovate scope in flakes, carry out in an all-round way in each province (district, city) and renovate in flakes.But in general, the technical capacity supporting China's countryside sewage treating is lower, lack the low cost, the easy care management countryside sewage treatment equipment that are suitable for.Treatment facility construction quality is low, technique device misapplication causes large quantities of rural sewage treatment engineering to be difficult to continue to play environmental benefit, is forced to carry out secondary transformation.Shaanxi Province's 2012-2014 rural environment is administered in flakes, most employing treatment unit less investment, acidication-artificial swamp composite treatment process that working cost is low, but operative practice shows, there is the problems such as treatment effect instability, easily blocking, not easily qualified discharge in quite a few engineering.In addition, the problems such as the technique device such as activated sludge process, biomembrance process and MBR exists that required fund is large, cost is high, technology and management do not catch up with, are not suitable for Rural areas equally.
Anaerobic technology owing to having significant advantage in energy-conservation, material and energy recovery, and the Anaerobic Microbiological Treatment Technology of current waste water has become the core technology of Sustainable development.If but only carrying out anaerobic treatment, outlet effect is poor, is in most cases difficult to meet emission request.The cases of engineering display of the unpowered mixing of a kind of rural community sewage-sludge liquid, anti-low temp biochemical treatment unit (patent No.: ZL201420237601.X), this device has the features such as cost is low, running cost is low, easy care, improve the degree of mixing of sewage and active sludge, there is good COD removal effect (under the condition of hydraulic detention time 2-3 days, average removal rate about 60%).But its Nitrogen/Phosphorus Removal is poor, when influent COD is higher, not easily qualified discharge.The typical detection display of non-powered domestic sewage treatment device effect overlaps to the whole province 52 in Environmental Protection Agency of Hubei Province, treatment effect is generally better than generalization manure pit, COD clearance 29.31%-79.99%, average removal rate is 53.73%, but very poor to ammonia nitrogen, phosphatic treatment effect.
Utility model content
The purpose of this utility model solves the ubiquitous treatment effect of Rural Areas at Present sewage treatment project unstable, easy blocking, not easily qualified discharge, high in cost of production problem, there is provided a kind of structure simple, it is convenient to build, maintenance cost and operational and administrative expenses low, the biological and ecological composite handling arrangement processed for country sewage (comprising sanitary sewage and breeding wastewater etc.) that processing efficiency is high.
In order to overcome the deficiencies in the prior art, the technical solution of the utility model is achieved in that
For the biological and ecological composite handling arrangement of rural sewage treatment, comprise mutual separation, the anaerobism strenuous primary treatment pond be arranged in series successively, aeration tank and ecological pond three unit, described anaerobism strenuous primary treatment pond comprises three pretreatment pools be interconnected, described anaerobism strenuous primary treatment pond is connected with water inlet pipe, and anaerobism strenuous primary treatment pond is connected by three-way flow guide pipe with between aeration tank; Be provided with combined stuffing in described aeration tank, three-way flow guide pipe is through to bottom combined stuffing positioned opposite with blast aeration tank, and aeration tank sidewall is provided with the thrust-augmenting nozzle being communicated with ecological pond; Described ecological pond comprises the upper alien pool and the sub-pool of end of two mutual serial communication, every sub-pool includes shallow water Humid Area and deep water Humid Area, the deep water Humid Area on the upper alien pool arranges floating bed sloping plate deposition combination unit, deep water Humid Area, end pool configuration waterplant and fish; Arrange sludge reflux pumping unit in ecological pond, surrounding bank kind is implanted with the dense trees of tree crown.
Further, described three anaerobism strenuous primary treatment ponds be interconnected are the first pretreatment pool, the second pretreatment pool and the 3rd pretreatment pool; Be provided with traverse baffle in described second pretreatment pool and be divided into Liang Ge district, bottom, Liang Ge district is through, and the Chi Tizhong adjacent with the 3rd pretreatment pool is provided with combined stuffing; Be provided with in described 3rd pretreatment pool and be through to combined stuffing bottom it by three-way flow guide pipe; Three pond, anaerobism strenuous primary treatment pond body sidewalls be interconnected are provided with overflow venting channels.
Further, the three-way flow guide water inlet tube mouth that described anaerobism strenuous primary treatment pond is communicated with aeration tank is located at 20cm-30cm place under the liquid level of anaerobism strenuous primary treatment pond; 40cm-60cm at the bottom of described three-way flow guide pipe water outlet distance aeration tank.
Further, arrange blast aeration tank at the bottom of described aeration tank, 48cm-53cm at the bottom of the combined stuffing distance pond on blast aeration tank, apart from liquid level 38cm-42cm.
Further, described ecological pond is rectangle, is separated into the upper alien pool of series connection and the sub-pool of end by deflected current wall, and every sub-pool is all fusiforms that feed-water end is narrow, water side is wide; Every Zi Tang water side width is 1/3 of ecological pond length, and feed-water end width is the 1/3-1/2 of water side width.
Further, described upper alien pool feed-water end is the rectangular deep water Humid Area of plane, and arrange floating bed sloping plate deposition combination unit in district, water side is shallow water Humid Area; End pool feed-water end is shallow water Humid Area, and water side is the rectangular deep water Humid Area of plane; Deep water Humid Area, two sub-pools length is the 1/3-1/2 of ecological pond length.
Further, be provided with 3 layers of base material of thick 35cm at the bottom of described shallow water Humid Area and pond, deep water Humid Area, be respectively the river layer of sand of particle diameter Φ 2mm-8mm, the thick 20cm of layer of sand from bottom to top; Thickness is the local dirt bed of 5cm; Thickness is 10cm, diameter is the metalling of 5cm-2cm; Described shallow water Humid Area and deep water Humid Area abutting end arrange retaining wall, and the substrate of shallow water Humid Area configures waterplant, and deep water configures waterplant in Humid Area, and put the fish at the middle and upper levels living in water in a suitable place to breed.
Further, described floating bed sloping plate deposition combination unit is made up of horizontal by 60 ° of angular distribution swash plates along rectangular box some, and swash plate is provided with the soilless culture floating bed of cultivated plant; Floating bed sloping plate deposition combination unit is located at alien pool feed-water end and deflected current wall adjacent, and floating bed sloping plate deposition combination unit is apart from 0.6m bottom the upper alien pool.
Further, described upper alien pool feed-water end arranges a deflected current wall, and deflected current wall exceeds water surface 28cm-32cm, and deflected current wall bottom is provided with some horizontal pod apertures far from 28cm-32cm place at the bottom of the pool, and pod apertures diameter is 10cm-15cm.
Further, be waste water range of distribution and mud district bottom the described upper alien pool, at the bottom of pond, be provided with the sludge pump be communicated to by mud return line in anaerobism strenuous primary treatment pond and aeration tank.
The utility model compared with prior art, has following beneficial effect:
1, present treatment device gives full play to the advantage of anaerobic biological treatment, Aerobic biological process, ecological pond three kinds of technology, by three kinds of technical combinations, solve the ubiquitous treatment effect of Rural Areas at Present sewage treatment project unstable, easy blocking, not easily qualified discharge, high in cost of production problem.
2, present treatment device arranges floating bed sloping plate deposition combination unit and sludge pump in ecological pond, the mud that aeration Aerobic biological process generates all is back to anaerobism strenuous primary treatment pond and aeration tank, improve the concentration of active sludge and the degree of mixing with sewage, extend sludge retention time, be conducive to denitrogenation and remove COD.Simultaneously by carrying out anaerobic treatment to mud, greatly reducing the volume of mud, solving a difficult problem for sludge treatment.
3, present treatment device arranges combined stuffing in aeration tank, while providing carrier for biochemical reaction microorganism, has and reduces dead band percentage, promote sludge settling, reduce sludge loss function, improve the concentration of active sludge.
4, present treatment device arranges floating bed sloping plate deposition combination unit in ecological pond, the combination of floating bed and inclined plate sedimentation device, while being beneficial to sloping plate deposition, facilitates the mobility of floating bed plant root district water, is conducive to floating bed to dirty water purification.
5, present treatment device arranges deflected current wall, ecological pond is separated into the sub-pool of 2 series connection, approximate fusiform that every sub-pool is that feed-water end is narrow, water side broadens, arranging three-way flow guide pipe makes aeration tank change bottom water inlet into by top water inlet, extending the stop reaction times of sewage in treatment unit by changing flow path, decreasing dead band percentage.
6, present treatment device plants the roomy trees of tree crown on ecological pond surrounding bank, and summer forms dense tree shade on the water surface, can suppress the raised growth of plant plankton, prevents effluent quality from worsening.Design ballow and shoaling water in ecological pond, configuration waterplant, puts the fish of certain species in a suitable place to breed simultaneously, is conducive to ensureing the healthy and stable of the ecosystem.
7, present treatment device is except water inlet and rising pipe, and all Inlet and outlet water under employing liquid level, can effectively prevent top layer floating matter from flowing into next processing unit.
8, the combined stuffing being suitable for bio-film colonization is hung in present treatment device anaerobism strenuous primary treatment pond, aeration tank, Biochemical Treatment can be improved further, combined stuffing is about 30cm-40cm apart from liquid level can prevent the microbial film discharge that comes off, affect water quality, at the bottom of pond, be about 50cm can be advanced treatment reserving space.
9, this apparatus structure is simple, easy for installation, without complex apparatus in device.Complete assembly only has a sludge pump and an aeration pump to need external energy, and energy-saving effect is obvious.Routine maintenance is mainly to the maintenance of this two pumps, and this two pumps can integral demounting, changes speed fast, and does not affect the operation of equipment.Device fully automatic operation, daily unmanned, only need make regular check on.Therefore there is significant economic and social benefit.
The utility model optimizes traditional anaerobism, aerobic combination treatment process, extend dwell time of sewage, improve the degree of mixing of sewage and active sludge, particularly construct a kind of novel ecological pool, and the mud of aeration postprecipitation at the bottom of the pool is all back to anaerobism strenuous primary treatment pond, solve large, the unmanageable problem of traditional countryside sewage disposal mud generation, have that cost is low, running cost is low, the feature such as efficient, easy popularization.
Accompanying drawing explanation
Fig. 1 is the utility model device two dimensional structure schematic diagram.
Fig. 2 is the utility model vertical cross section structural representation.
In figure: 1-anaerobism strenuous primary treatment pond; 1-1-first pretreatment pool; 1-2-second pretreatment pool; 1-3-the 3rd pretreatment pool; 2-aeration tank; The upper alien pool of 3-; The sub-pool of 4-end; 5-mud return line; 6-three-way flow guide pipe; 7-access hole (perforation plate); 8-blast aeration tank; 9-combined stuffing; 10-thrust-augmenting nozzle I; 11-sludge pump; 12-floating bed sloping plate deposition combination unit; 13-shallow water Humid Area; 14-thrust-augmenting nozzle II; 15-deep water Humid Area; 16-water inlet pipe; 17-rising pipe; 18-overflow venting channels; 19-deflected current wall.
Embodiment
Below in conjunction with accompanying drawing, content of the present utility model is described in further detail.
Shown in seeing figures.1.and.2, this is used for the biological and ecological composite handling arrangement of rural sewage treatment, comprises mutual separation, the anaerobism strenuous primary treatment pond 1 be arranged in series successively, aeration tank 2 and ecological pond three unit.
Wherein, anaerobism strenuous primary treatment pond 1 comprises three pretreatment pools be interconnected, and three anaerobism strenuous primary treatment ponds 1 be interconnected are the first pretreatment pool 1-1, the second pretreatment pool 1-2 and the 3rd pretreatment pool 1-3; First pretreatment pool 1-1 is connected with water inlet pipe 16, connected by communicating pipe between first pretreatment pool 1-1 and the second pretreatment pool 1-2, be provided with traverse baffle in second pretreatment pool 1-2 and be divided into Liang Ge district, bottom, Liang Ge district is through, and the Chi Tizhong adjacent with the 3rd pretreatment pool 1-3 is provided with combined stuffing 9 (can purchased from Yixing City clean brook environment-friendly filler company limited); Be provided with combined stuffing 9 (the same) in 3rd pretreatment pool 1-3, the second pretreatment pool 1-2 is communicated with by three-way flow guide pipe 6 with the 3rd pretreatment pool 1-3, and three-way flow guide pipe 6 is through to bottom combined stuffing 9; Three pond, anaerobism strenuous primary treatment pond 1 body sidewalls be interconnected are provided with overflow venting channels 18.In anaerobism strenuous primary treatment pond 1 and aeration tank 2, overflow venting channels 18 is rectangular opening or circular holes of some high about 20cm, be positioned under access hole (perforation plate), near ground, its object arranged is overflow sewage and ventilation, and in the not smooth situation of Pipeline, ensuring equipment runs.
In this device, anaerobism strenuous primary treatment pond 1 and aeration tank 2 adopt reinforced concrete structure.Ecological pond adopts geotechnological method construction, the side slope of surrounding about 60 °, uses the antiseepage such as HDPE density polyethylene film with high and antiseepage blanket (GCL), and the deflected current wall in ecological pond adopts masonry structure.The caliber 100mm-200mm such as water inlet pipe, rising pipe, thrust-augmenting nozzle, mud return line in device, determines according to the process water yield, water quality situation etc.
The each pretreatment pool in anaerobism strenuous primary treatment pond 1 and aeration tank 2 are equipped with access hole 7, overhaul by access hole 7 pairs of devices and debug.
Wherein, be connected between aeration tank 2 with anaerobism strenuous primary treatment pond 1 by three-way flow guide pipe 6, three-way flow guide pipe 6 water-in is located at 20cm-30cm place under the liquid level of anaerobism strenuous primary treatment pond 1, and three-way flow guide pipe 6 water outlet is apart from 40cm-60cm at the bottom of aeration tank.Combined stuffing 9 (the same) is provided with in aeration tank 2, aeration tank 2 end, arranges blast aeration tank 8, three-way flow guide pipe 6 is through to bottom combined stuffing 9 positioned opposite with blast aeration tank 8, the combined stuffing 9 on blast aeration tank 8 apart from 48cm-53cm at the bottom of pond, apart from liquid level 38cm-42cm.Anaerobism strenuous primary treatment pond 1,2 liang, aeration tank tank depth are 5m-8m, depth of water 4-7m.
Wherein, aeration tank 2 is communicated with by thrust-augmenting nozzle I 10 with ecological pond, ecological pond is rectangle, the alien pool 3 and the sub-pool 4 of end on 2 ponds be interconnected down through thrust-augmenting nozzle II 14 is separated into by deflected current wall, every sub-pool is all that feed-water end is narrow, water side broadens, reduce the approximate fusiform in dead band, plane is in being unfavorable for current short circuit; Every Zi Tang water side width is 1/3 of ecological pond length, and feed-water end width is the 1/3-1/2 of water side width.The thrust-augmenting nozzle II 14 be communicated with between thrust-augmenting nozzle I 10 and ecological pond two sub-pools between aeration tank with ecological pond is horizontal pod apertures or thrust-augmenting nozzle, is positioned at 20cm-30cm place, underwater.
Two ponds are divided into shallow water Humid Area 13 and deep water Humid Area 15 respectively, and the upper alien pool 3 feed-water end is the rectangular deep water Humid Area of plane, and arrange floating bed sloping plate deposition combination unit 12 in district, water side is shallow water Humid Area 13; The end pool 4 feed-water end is shallow water Humid Area 13, and water side is the rectangular deep water Humid Area 15 of plane; Deep water Humid Area, two sub-pools length is the 1/3-1/2 of ecological pond length.
Be provided with 3 layers of base material of thick 35cm at the bottom of pond, shallow water Humid Area 13, be respectively the river layer of sand of particle diameter Φ 2mm-8mm, the thick 20cm of layer of sand from bottom to top; Thickness is the local dirt bed of 5cm; Thickness is 10cm, diameter is the metalling of 5cm; First insert river layer of sand, the local earth of layer of sand upper berth, river one deck, the upper berth rubble of earth, substrate configures waterplant.Shallow water Humid Area 13 substrate configures waterplant, depth of water 30-40cm, plant cover degree is greater than 70%.
3 layer materials that deep water Humid Area 15 is identical with shallow water Humid Area, are only that the diameter of upper strata rubble changes about 2cm into, substrate configure waterplant, plant cover degree about 30%, and put the silver carp at the middle and upper levels, bighead, Erythroculter fish etc. that live in water in a suitable place to breed, and the depth of water is about 160cm.
Shallow water Humid Area 13 and deep water Humid Area 15 abutting end arrange retaining wall, and a little more than the base material laid, object is that the base material preventing from laying runs off.
The upper alien pool 3 feed-water end arranges a deflected current wall 19, and deflected current wall 19 exceeds water surface 28cm-32cm, and deflected current wall 19 bottom is provided with some horizontal pod apertures far from 28cm-32cm place at the bottom of the pool, and pod apertures diameter is about 10cm-15cm.Floating bed sloping plate deposition combination unit 12 is located at the alien pool 3 feed-water end and deflected current wall adjacent, and floating bed sloping plate deposition combination unit 12 is apart from 0.6m bottom the upper alien pool 3.Floating bed sloping plate deposition combination unit 12 by some be that 60 ° of angular distribution swash plates are formed along rectangular box horizontal plane, its swash plate is about 1.0m, swash plate clear spacing 60 ~ 100mm, have an appointment the depth of water of 0.3m in the upper strata of swash plate, soilless culture floating bed is set wherein, to plant the plants such as Canna generalis Bailey, cattail, calamus, Chinese celery, plant cover degree about 30%; The lower floor of swash plate has an appointment the depth of water of 0.6m, and as waste water range of distribution and mud district, mud arranges sludge pump in district.The sludge pump 11 be communicated to by mud return line 5 in anaerobism strenuous primary treatment pond 1 and aeration tank 2 is provided with at the bottom of pond.Ecological pond top is provided with rising pipe 17, and surrounding bank kind is implanted with the roomy dense trees of tree crown.
The utility model device gives full play to the advantage of anaerobic biological treatment, Aerobic biological process, ecological pond three kinds of technology, and three kinds of technical combinations are formed biological-ecological composite handling arrangement.In this device, anaerobism strenuous primary treatment pond is connected with suction culvert, anaerobism strenuous primary treatment pond enters bottom aeration tank in underwater, portion by three-way flow guide pipe from it, top, aeration tank by thrust-augmenting nozzle from entering ecological pond under water, system is discharged by rising pipe in ecological pond top, penetration depth treatment facility or external environment.In ecological pond, mud adopts sludge pump to be regularly back to anaerobism strenuous primary treatment pond and aeration tank, does not transport outward, removes 1 mud every the several years in anaerobism strenuous primary treatment pond.Ecological pond every day to aeration tank returned sluge, return sludge ratio 20% ~ 80%; The timed interval to anaerobism strenuous primary treatment pond returned sluge is determined according to the actual generation of mud.
The trees that ecological pond surrounding bank plantation tree crown is roomy, summer forms dense tree shade on the water surface.
This device produces feature according to domestic sewage in rural areas, aeration tank 7:00-24:00 on daytime intermittent aeration, and 7:00 starts aeration, each aeration time 1 hour, and stop the 3 hours time of exposing to the sun, night stops aeration, and the energy can adopt electric energy, sun power etc.2 days to the 5 days anaerobism strenuous primary treatment tank waterpower residence time, aeration tank hydraulic detention time about 1 day, ecological pond hydraulic detention time is no less than 1 day.On ecological pond, in ballow, the alien pool, mud all should reflux every day, and in deep water Humid Area, the ecological pond end pool, the dredging sludge cycle is longer, fixed depending on polluting siltation volume, is generally greater than 1 year.If other country sewages such as process breeding wastewater, need according to influent quality, water yield feature adjusted design, operating parameter.
Special instruction: in water inlet the bulk such as Plastic Bottle, refuse bag suspend or floating matter more when, need before device to set up coarse rack.
During the work of the utility model device, top, anaerobism strenuous primary treatment pond 1 is connected with water inlet pipe 16, anaerobism strenuous primary treatment pond 1 enters bottom aeration tank 2 in underwater, portion by three-way flow guide pipe 6 from it, aeration tank 2 upper clear supernate by thrust-augmenting nozzle I 10 from entering the upper alien pool 3 under water, the sub-pool 4 of end is entered by thrust-augmenting nozzle II 14, upper clear supernate discharges system by rising pipe 17, penetration depth treatment facility or external environment.In the upper alien pool 3 and the sub-pool 4 of end, mud adopts sludge pump 11 to be regularly back to anaerobism strenuous primary treatment pond 1 and aeration tank 2, does not transport outward, removes 1 mud every the several years in anaerobism strenuous primary treatment pond.The upper alien pool 3 every day to aeration tank 2 returned sluge, return sludge ratio 20% ~ 80%; The timed interval to anaerobism strenuous primary treatment pond 1 returned sluge is determined according to the actual generation of mud.In the sub-pool of end 4, the dredging sludge cycle is longer, fixed depending on mud siltation volume, is generally greater than 1 year, removes upper strata mud scum, be back to anaerobism strenuous primary treatment pond 1, also can be used as fertilizer also field with sludge pump.In annual season in late autumn, waterplant should to be gathered in ecological pond 1 time.
Provide an embodiment of this device below to further illustrate the utility model effect.
The lab scale test of design anaerobism strenuous primary treatment pond and aeration tank series connection, continuum micromeehanics, amount of inlet water 30 liters/day, 3 days anaerobism strenuous primary treatment pond residence time, 12 hours aeration tank residence time, every day aeration time 5 hours, influent COD is 300mg/L, TN30mg/L, TP4.5mg/L.Result shows: anaerobism strenuous primary treatment pond COD clearance is that 60%, TN and TP clearance are lower, is even negative value; At room temperature, COD, TN and TP clearance is respectively 85%, 73%, 32% to whole system.
In the end of the year 2013, present treatment device builds up demonstration project in Xi'an community, processes water yield 40-50 cube/day.Because ecological pond is not built in soil shortage, only build up the processing unit of anaerobism strenuous primary treatment pond and the series connection of two, aeration tank, without backflow design.About 2 days anaerobism strenuous primary treatment pond residence time, about 16 hours aeration tank residence time; Sun power is only utilized to carry out short period of time aeration by day.The data display run, influent COD 350-390mg/L, TN71-93mg/L, TP7-13mg/L; Anaerobism strenuous primary treatment pond water outlet COD is about 140mg/L, TN and TP clearance is lower, how below 20%; After the aerobic treatment of aeration tank, water outlet COD45-60mg/L, TN30-35mg/L.TP clearance is still lower, and reason is after Air Exposure, and water outlet is directly discharged, and does not carry out precipitation process.
According to the ecological wastewater processing research carried out before utility model person, in conjunction with the wetland carried out in a large number, ecological pond water treatment research and engineering practice, when influent COD 400mg/L, TN80mg/L, TP10mg/L, water outlet COD, TN, TP can control at 50mg/L, 20mg/L, below 3mg/L by the utility model complete assembly respectively.

Claims (10)

1. for the biological and ecological composite handling arrangement of rural sewage treatment, comprise mutual separation, the anaerobism strenuous primary treatment pond be arranged in series successively, aeration tank and ecological pond three unit, it is characterized in that: described anaerobism strenuous primary treatment pond comprises three pretreatment pools be interconnected, described anaerobism strenuous primary treatment pond is connected with water inlet pipe, and anaerobism strenuous primary treatment pond is connected by three-way flow guide pipe with between aeration tank; Be provided with combined stuffing in described aeration tank, three-way flow guide pipe is through to bottom combined stuffing positioned opposite with blast aeration tank, and aeration tank sidewall is provided with the thrust-augmenting nozzle being communicated with ecological pond; Described ecological pond comprises the upper alien pool and the sub-pool of end of two mutual serial communication, every sub-pool includes shallow water Humid Area and deep water Humid Area, the deep water Humid Area on the upper alien pool arranges floating bed sloping plate deposition combination unit, deep water Humid Area, end pool configuration waterplant and fish; Arrange sludge reflux pumping unit in ecological pond, surrounding bank kind is implanted with the dense trees of tree crown.
2. the biological and ecological composite handling arrangement for rural sewage treatment according to claim 1, is characterized in that: described three anaerobism strenuous primary treatment ponds be interconnected are the first pretreatment pool, the second pretreatment pool and the 3rd pretreatment pool; Be provided with traverse baffle in described second pretreatment pool and be divided into Liang Ge district, bottom, Liang Ge district is through, and the Chi Tizhong adjacent with the 3rd pretreatment pool is provided with combined stuffing; Be provided with in described 3rd pretreatment pool and be through to combined stuffing bottom it by three-way flow guide pipe; Three pond, anaerobism strenuous primary treatment pond body sidewalls be interconnected are provided with overflow venting channels.
3. the biological and ecological composite handling arrangement for rural sewage treatment according to claim 1, is characterized in that: the three-way flow guide water inlet tube mouth that described anaerobism strenuous primary treatment pond is communicated with aeration tank is located at 20cm-30cm place under the liquid level of anaerobism strenuous primary treatment pond; 40cm-60cm at the bottom of described three-way flow guide pipe water outlet distance aeration tank.
4. the biological and ecological composite handling arrangement for rural sewage treatment according to claim 1, is characterized in that: arrange blast aeration tank at the bottom of described aeration tank, and 48cm-53cm at the bottom of the combined stuffing distance pond on blast aeration tank, apart from liquid level 38cm-42cm.
5. the biological and ecological composite handling arrangement for rural sewage treatment according to claim 1, it is characterized in that: described ecological pond is rectangle, be separated into the upper alien pool of series connection and the sub-pool of end by deflected current wall, every sub-pool is all fusiforms that feed-water end is narrow, water side is wide; Every Zi Tang water side width is 1/3 of ecological pond length, and feed-water end width is the 1/3-1/2 of water side width.
6. the biological and ecological composite handling arrangement for rural sewage treatment according to claim 5, it is characterized in that: described upper alien pool feed-water end is the rectangular deep water Humid Area of plane, arrange floating bed sloping plate deposition combination unit in district, water side is shallow water Humid Area; End pool feed-water end is shallow water Humid Area, and water side is the rectangular deep water Humid Area of plane; Deep water Humid Area, two sub-pools length is the 1/3-1/2 of ecological pond length.
7. the biological and ecological composite handling arrangement for rural sewage treatment according to claim 6, it is characterized in that: the 3 layers of base material being provided with thick 35cm at the bottom of described shallow water Humid Area and pond, deep water Humid Area, are respectively the river layer of sand of particle diameter Φ 2mm-8mm, the thick 20cm of layer of sand from bottom to top; Thickness is the local dirt bed of 5cm; Thickness is 10cm, diameter is the metalling of 5cm-2cm; Described shallow water Humid Area and deep water Humid Area (15) abutting end arrange retaining wall, and the substrate of shallow water Humid Area configures waterplant, and deep water configures waterplant in Humid Area, and put the fish at the middle and upper levels living in water in a suitable place to breed.
8. the biological and ecological composite handling arrangement for rural sewage treatment according to claim 6, it is characterized in that: described floating bed sloping plate deposition combination unit is made up of horizontal by 60 ° of angular distribution swash plates along rectangular box some, and swash plate is provided with the soilless culture floating bed of cultivated plant; Floating bed sloping plate deposition combination unit is located at alien pool feed-water end and deflected current wall adjacent, and floating bed sloping plate deposition combination unit is apart from 0.6m bottom the upper alien pool.
9. the biological and ecological composite handling arrangement for rural sewage treatment according to claim 5, it is characterized in that: described upper alien pool feed-water end arranges a deflected current wall, deflected current wall exceeds water surface 28cm-32cm, deflected current wall bottom is provided with some horizontal pod apertures far from 28cm-32cm place at the bottom of the pool, and pod apertures diameter is 10cm-15cm.
10. the biological and ecological composite handling arrangement for rural sewage treatment according to claim 5, it is characterized in that: for waste water range of distribution and mud district bottom the described upper alien pool, at the bottom of pond, be provided with the sludge pump be communicated to by mud return line in anaerobism strenuous primary treatment pond and aeration tank.
CN201520420115.6U 2015-06-17 2015-06-17 A biological ecological composite treatment device for rural sewage treatment Expired - Fee Related CN204779250U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104926038A (en) * 2015-06-17 2015-09-23 陕西省环境科学研究院 Biological and ecological combined processing device used for processing rural sewage
CN109607794A (en) * 2018-11-23 2019-04-12 上海勘测设计研究院有限公司 City river direct purification device
CN110451723A (en) * 2019-08-09 2019-11-15 四川大学 A kind of mixed fillers fluidisation pond couples artificial swamp sewage water advanced treatment apparatus
CN113754068A (en) * 2021-10-14 2021-12-07 西南湿地有限公司 Constructed wetland combined medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104926038A (en) * 2015-06-17 2015-09-23 陕西省环境科学研究院 Biological and ecological combined processing device used for processing rural sewage
CN109607794A (en) * 2018-11-23 2019-04-12 上海勘测设计研究院有限公司 City river direct purification device
WO2020103415A1 (en) * 2018-11-23 2020-05-28 上海勘测设计研究院有限公司 Urban river channel direct purification device
CN110451723A (en) * 2019-08-09 2019-11-15 四川大学 A kind of mixed fillers fluidisation pond couples artificial swamp sewage water advanced treatment apparatus
CN113754068A (en) * 2021-10-14 2021-12-07 西南湿地有限公司 Constructed wetland combined medium

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