CN201338978Y - Processing system of reinforced type biological reacting tank and reinforced type undercurrent wetland - Google Patents
Processing system of reinforced type biological reacting tank and reinforced type undercurrent wetland Download PDFInfo
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- CN201338978Y CN201338978Y CNU2009200671547U CN200920067154U CN201338978Y CN 201338978 Y CN201338978 Y CN 201338978Y CN U2009200671547 U CNU2009200671547 U CN U2009200671547U CN 200920067154 U CN200920067154 U CN 200920067154U CN 201338978 Y CN201338978 Y CN 201338978Y
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- Y—GENERAL 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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The utility model relates to a processing system of a reinforced type biological reacting tank and a reinforced type undercurrent wetland, belonging to the field of rural domestic sewage processing systems. The processing system comprises a reinforced type biological reacting tank, a reinforced type undercurrent wetland and a collecting pipeline; the reinforced type biological reacting tanks are arranged in a scattering way according to households, the reinforced type undercurrent wetland is arranged in a concentrating way when proper position is chose, and the reinforced type biological reacting tank and the reinforced type undercurrent wetland are connected by the collecting pipeline for forming a set of processing system. The reinforced type biological reacting tank is internally divided into three processing units, firstly, solid-liquid-gas separating effect is ensured, and then pollutant content is effectively reduced by biological reaction and stuffing material in the reacting tank, so as to alleviate the processing load of a follow-up unit. Meanwhile, zeolite is used as base material on the water distributing layer of the reinforced type undercurrent wetland for improving ammonia nitrogen removing effect. Economic crops are planted on the surface layer of the wetland, nitrogen and phosphorus and organic matters are removed by root system adsorption, so as to produce a certain benefit. The processing system solves the problems of rural sewage recovery and regeneration effectively and economically, so as to prevent pollution.
Description
Technical field
The utility model belongs to sewage treatment area, relates to the system of a kind of decentralized country residents sanitary sewage disposal, specifically is a kind of reinforced biological reaction tank and reinforced undercurrent wetland processing system.
Background technology
Along with the propelling of national new countryside construction paces, urban residents are to improving constantly that living environment requires, and rural development has entered a brand-new period.On the basis of understanding building a New Socialist Countryside all-sidedly and accurately,, determined that fresh target is built in the suburb of " programming and distribution rationally, economic strength strengthens, the human settlement is good, humanistic quality improves, democracy and legal system strengthen " in conjunction with country practical.And the handling problem that solves domestic sewage in rural areas by using is the important behave that realizes the good policy of human settlement.
Compare with the domestic sewage treating mode, the domestic sewage in rural areas by using treatment system has himself characteristic:
1, country residents skewness, some areas are very intensive, and some regional population then disperses relatively, and sewage collecting acquires a certain degree of difficulty;
2, do not have unified sewage collecting pipe network, drainage collection treatment system construction rate is low, and national rural area is annual to produce about more than 80 hundred million tons of sanitary sewage, and 96% village does not have discharge conduit and Sewage treatment systems;
3, based on family domestic sewage (there is Peasants Joy the subregion), these sanitary sewages mainly discharge after the self-built septic tank simple process of each resident family at present, part of contaminated water even unprocessed direct discharging, destroyed regional water surrounding, cause water body to be polluted, water quality constantly worsens, and the serious threat local resident's is healthy;
4, according to the sample survey result, the rural area has been built septic tank and has not been reached code requirement more than ninety percent at present, and processing back water outlet is directly discharged or permeated the ground by soil, and peripheral surface water body and underground water etc. are caused bigger pollution;
5, the tap water popularity rate in present national rural area has only about 34%, most of Rural areas still with natural water body or well water as the water source, water pollution causes peasant more than 300,000,000 to have the safe drinking water problem.
At above-mentioned situation, at present China has the following treatment technology at the experimental stage or dropped in the middle of the practical application, comprises septic tank, biological septic tank, sewage purification anaerobic biogas generating pit, low power biochemical processing device, purification tank, the buried treatment system in concentrated area, artificial wet land treating system, stabilization pond treatment system, scholar's earth percolation treatment system etc.
Below introduce several treatment systems commonly used at present
1, artificial wet land treating system
Artificial wet land treating system mainly is a kind of technology that physics, chemistry, the biological triple synergies of utilizing soil, artificial dielectric, plant, microorganism are handled.Its mechanism of action comprises that absorption, delay, filtration, redox, precipitation, microbiological degradation, conversion, plant are covered, the effect of residue accumulated, water transpiration and nutrition absorption and all kinds of animals.
Artificial swamp is a comprehensive ecosystem, it uses species symbiosis in the ecosystem, material cycle regeneration principle, structure and orthofunction principle, in promoting waste water under the eucyclic prerequisite of pollution substance, give full play to the production potential of resource, prevent the recontaminate of environment, obtain the optimum efficiency of sewage disposal and resource utilization.Its weak point is: need land area big, a little less than the adverse weather condition defensive ability/resistance ability, detergent power is subjected to the influence of plant growth maturity big, in addition, may need the control mosquitos and flies to grow etc.
2, stabilization pond
Stabilization pond is once called as oxidation pond or biological pond, is a kind of general name of utilizing the structures that natural detergent power handles sewage.Its scavenging process is similar to the self-purification process of natural water.Normally the soil is carried out suitable manual amendment, build up the pond, and embankment and impervious barrier are set, the organic pollutant in the waste water is handled in the acting in conjunction of the microorganism of growth and algae in the dependence pool.
The stabilization pond Sewage treatment systems has initial cost and running expense is low, maintenance and easy to maintenance, be convenient to operate, can effectively remove organism and pathogenic agent in the sewage, need not advantages such as sludge treatment, in China,, be one of effective ways of implementing the sewage recycling utilization particularly in the area of lack of water arid.
3, the buried Sewage treatment systems in concentrated area
The buried Sewage treatment systems in concentrated area is a kind of integrated, modular high-efficiency sewage biological treatment system, is suitable for the Rural areas that degree of treatment is had relatively high expectations, and can adopt in bulk and self-contained form according to physical features and land use situation.Mainly constitute by main processing links such as precipitation, biochemical, two heavy, sterilizations.
It is strong to sewage treatment capacity that this focuses on technology, the efficient height.But running cost, power consumption are higher.Owing to adopt electromechanical equipment and valve instrument, operation operation and system maintenance are comparatively complicated.
4, sanitary sewage purifying biogas generating pit
Sanitary sewage purifying biogas generating pit is that the pressure type methane-generating pit that catchments, anaerobic filter are in the multipole deflector type Digestive tract of one.Handle sanitary sewage less investment, fund dispersion, instant effect with this method.Be applicable to unable cities and towns or outer unit, office building, residential quarters, hotel, school and the Public toilets etc. of cities and towns pipe network of building sewage work of concentrating.
5, soil filtration treatment system
The land percolation treatment system be with sewage have the control the distance face of land certain depth of batching, have in the soil layer of certain structure and good diffusion performance, sewage the kapillary of soil soak into and transudation under, the soil processing and utilizing technology of moving towards periphery and being purified and utilizing.The advantage of this system: water distribution system is embedded in underground, does not influence ground landscape; Operational management is simple; It is strong that N, P remove ability; Effluent quality is good, but the reuse of purifying waste water.But following shortcoming is arranged also: it is bigger influenced by place and edaphic condition; It is improper to control, and easily stops up; Underground construction, quantities is bigger, invests higher.
In sum, through research work on the spot in a large number and the prior art literature search is found, there are poor processing effect in device or total system in above-mentioned these technology, be subjected to the fluctuation of ectocine treat effluent index big, treating processes causes certain influence to surrounding enviroment, take up an area of big cost height, treatment process production process waste can't effectively utilize and can't embody defectives such as self utility value, though various processing modes can embody remarkable advantage targetedly in operational process, but single processing mode is failed fully in conjunction with rural area draining characteristics, embodies low the input in each link of " generation-collection-processing-discharging-utilization " this process, high-level efficiency, easily implement, low risk, easy care, there is not influence, important factor such as can utilize.
The utility model content
The purpose of this utility model is to provide a kind of reinforced biological reaction tank and reinforced undercurrent wetland processing system, overcomes the deficiency of above-mentioned prior art, can handle decentralized country residents sanitary sewage effectively.
For reaching above purpose, the solution that the utility model adopted is:
A kind of domestic sewage processing system, it comprises reinforced biological reaction tank, reinforced undercurrent wetland, it is provided with reinforced biological reaction tank in each household resident family, and the concentrated reinforced undercurrent wetland that is provided with, reinforced biological reaction tank is connected to reinforced undercurrent wetland respectively by the sewage collecting pipeline, handles drainage water up to standard and goes into water channel or river course by current wetland by row of conduits.
Further, described reinforced biological reaction tank comprises three phase separation anoxic unit, upflow type anaerobic unit, from the biochemical unit of oxygenation, three unit link to each other by inlet and outlet pipe lines successively, and sanitary sewage flows into the three phase separation anoxic unit by inlet channel, successively after three cell processing by outlet conduit from flowing out from the biochemical unit of oxygenation.
Described three phase separation anoxic unit crown center be provided with have bell-mouthed vertically to central tube, the hydraucone both sides are provided with baffle plate, two side shields form " eight " word, a side is provided with the extensional pipeline that is connected in the middle of the central tube, and pipeline extends in the unitary central tube of upflow type anaerobic as being communicated with two unitary inlet and outlet pipe lines.
The described extensional pipeline below that has bell-mouthed central tube also is provided with circular hole.
Described upflow type anaerobic unit crown center is provided with vertically to central tube, a side is provided with the breach that the extensional pipeline for three phase separation anoxic unit central tube stretches in the middle of the central tube, correspondence is provided with reflector under the central tube, and the central tube both sides are lower than the pipeline place and also hang and be provided with filler.
Describedly be provided with vertically to dividing plate from the biochemical unit of oxygenation crown center, the dividing plate both sides are lower than the pipeline place and hang and be provided with filler.
Described hanging filler is an elastic solid filler.
Described inlet and outlet pipe lines is lower than last inlet and outlet pipe lines successively, open folding shape pipeline above wherein being communicated with the upflow type anaerobic unit and being closed at both ends from the biochemical unitary inlet and outlet pipe lines of oxygenation, the duct section from place, the biochemical unit of oxygenation is lower than the duct section at place, upflow type anaerobic unit.
Described reinforced undercurrent wetland comprises former soil layer, water distribution layer, filtering layer, supporting layer and water-yielding stratum from top to bottom successively, has planted cash crop or landscape plant on the wherein former soil layer; Water distribution layer is that zeolite is filled; Filtering layer is that quartz sand filter media is filled; Supporting layer is that sandy gravel is filled; Water-yielding stratum is that pebbles is filled; Be provided with water inlet pipe in this water distribution layer, be provided with water shoot in the water-yielding stratum.
Lay high-strength artificial filamentary material graticule mesh between each of described reinforced undercurrent wetland layer.
Described sewage collecting selection for pipeline high strength, corrosion-resistant, tubing that flux is big.
Owing to adopted such scheme, the utlity model has following characteristics:
1, reduces between the dispersion resident family because of building the contradiction that sewage treatment facility may cause;
2, one-time construction reduced investment reduces the cost of follow-up operation maintenance workload and generation as far as possible, embodies economy, high efficiency;
3, treat effluent is limpid, free from extraneous odour, clearance height such as organic indicator, total nitrogen, total phosphorus;
4, embody cleaner production theory in the treatment process emphatically, handle and produce recycling sludge, be used for the soil utilization, the improvement soil property, the secondary pollutant that reduces to greatest extent and utilize treating processes to produce, treat effluent can be used as irrigation water and the additional water of natural water simultaneously, improves water utilization rate;
5, the sewage treatment facility layout area is clean and tidy, attractive in appearance, can be arranged to lie fallow the view district or recycling as peasant vegetable garden, the economical plant of plantation to improve the soil utility value.
Description of drawings
Fig. 1 is the structural representation of artificial wet land treating system.
Fig. 2 is the structural representation of stabilization pond.
Fig. 3 is the structural representation of the buried Sewage treatment systems in concentrated area.
Fig. 4 is a system layout synoptic diagram of the present utility model.
Fig. 5 is the structural representation of reinforced biological reaction tank in the utility model.
Fig. 6 is the structural representation of reinforced undercurrent wetland in the utility model.
Embodiment
Below in conjunction with the accompanying drawing illustrated embodiment the utility model is further described.
As shown in Figure 4, Sewage treatment systems of the present utility model comprises reinforced biological reaction tank 1, reinforced undercurrent wetland 2, conduit 3, water channel or river course 4.Reinforced biological reaction tank 1 is according to resident family's dispersed placement, peasant household of every family is provided with a reinforced biological reaction tank 1, reinforced undercurrent wetland 2 is chosen the correct position centralized arrangement, can concentrate according to system's setting area field condition and be provided with, scale inserts the water yield according to reality and determines, both form a whole set of treatment systems by conduit 3 contact, and the water outlet of handling after up to standard drains near water channel or river course 4.Reinforced biological reaction tank 1 is used to collect the sanitary sewage that daily life produces, and sewage is carried out certain early stage handle, its internal separation is three processing units, at first guarantee solid-liquid gas separating effect, establish filler in reaching by biological respinse again and effectively reduce pollutant load, alleviate follow-up cell processing load.After handling, reinforced biological reaction tank 1 passes through the sewage collecting pipeline, reinforced undercurrent wetland 2 is collected, is delivered to the sanitary sewage of some amount peasant household by pipeline, further deepen processing, it improves the ammonia nitrogen removal effect with the base-material of zeolite as reinforced undercurrent wetland 2 water distribution layer 22.The wetland top layer plants economic crops 211, absorbs by its root system and removes nitrogen phosphorus and organism, produces certain income simultaneously.Conduit 3 comprises sewage collecting arm and sewage collecting main, it selects high strength, corrosion-resistant, tubing that flux is big for use, according to this treatment system setting area field condition rational deployment, reduce laid length and buried depth, avoid simultaneously resident's daily life and traffic trip are impacted.Reinforced biological reaction tank and reinforced undercurrent wetland processing system demonstrate fully the theory of cleaner production, cutting dirty pollution treatment simultaneously, produce mud in the reinforced biological reaction tank through after the anaerobic digestion, can be used for the reinforced undercurrent wetland top layer, as the fertilizer of improvement soil property, the treatment system water outlet enters water channel as farmland irrigation water, also can be used for natural water and replenishes, the cash crop of choosing seeds simultaneously regularly produce income, embody efficiency of cycling economy.
Reinforced biological reaction tank 1 (see figure 5) is divided into three phase separation anoxic unit, upflow type anaerobic unit and from biochemical three unit of oxygenation.The three phase separation anoxic unit has functions such as solid-liquid separation, acidication and reducing sludge volume be stable concurrently in one, has improved processing efficiency greatly; Sanitary sewage enters through baffle plate 12 water conservancy diversion from water inlet pipe 111, carry out solid-liquid separation, impurity formation of deposits mud 13 in the water, sewage is through hydraucone 141 and central tube 14, extensional pipeline 143 overflows that are provided with by central tube 14 centers one side are to the upflowing anaerobic unit, wherein a part of sewage improves streamflow regime and improves treatment effect by being arranged on the circular hole 142 and water inlet thorough mixing on the central tube 14.The upflow type anaerobic unit is to use for reference width of cloth flow settling pond pond type, advances the flow shape that goes out in week in the employing; Sewage enters from the central tube 15 that is arranged on pond central authorities, evenly upwards flow slowly through the reflector 17 that is arranged on the lower end then, central tube 14 both sides are lower than and hang elastic filler 16 in the unit of inlet and outlet pipe lines 19 and provide good fixedly life area for microbial growth, filler adopts the novel elastic 3-D filler, this filler have be difficult for to stop up, in light weight, specific surface area big, the advantage of effect stability, and be easy to maintenance and change.Sewage flows into from the biochemical unit of oxygenation by elastic filler 16 backs.Inlet and outlet pipe lines 19 is the open folding shape pipeline in closed at both ends top, and the duct section from place, the biochemical unit of oxygenation is lower than the duct section at place, upflow type anaerobic unit.In the biochemical unit of oxygenation, dividing plate 18 is set, the pond body is divided into two portions, inner suspension elastic filler 16, improve the biochemical treatment effect, effectively remove organism, cut down COD (chemical oxygen demand (COD)) content, sewage enters and adopts behind this processing unit gravity to fall form to carry out oxygenation, do not have the operation power charge, no complex appts equipment simple in structure, keep in repair easy, maintenance cost is low.Hang elastic filler in the unit simultaneously, improve the biochemical treatment effect, further remove pollutants in sewage.
Reinforced undercurrent wetland 2 (see figure 6)s, this technology are carried out the function optimization improvement based on underflow type artificial wet land to it.Water through after reinforced biological reaction tank 1 processing enters reinforced undercurrent wetland 2 and is further processed.Reinforced undercurrent wetland 2 is divided into five layers, is respectively: former soil layer 21, water distribution layer 22, filtering layer 23, supporting layer 24 and water-yielding stratum 25.Sewage is uniformly distributed in the wetland surface by the water inlet pipe 221 that is installed in water distribution layer 22, water distribution layer 22 selects for use zeolite as base material, organism and ammonia nitrogen in the waste water are trapped, adsorb, and absorbed, degrade by plant 211 root systems of microorganism in the former soil layer 21 and plantation by soil then.Afterwards, sewage penetrates into downwards by quartz sand filter media and fills the filtering layer 23 form, to remaining pollutent in the sewage hold back, filtration and biological degradation.Be supporting layer 24 below the filtering layer 23, mainly form that its effect is support, supports filtering layer, and prevents that filtrate runs off from system by the sandy gravel filling.Sewage after the processing continues to infiltrate water-yielding stratum 25 downwards, after collecting through rising pipe 251 at last, and water channel or river course near entering.
For the ease of wetland handle saturated after, each layer turns over whole again, lay high-strength artificial filamentary material (similar fishnet material) graticule mesh between each functional layer, these filamentary materials can be used as the microbial growth place again simultaneously, have strengthened the biochemical treatment effect of whole unit.
The technical process that present embodiment relates to is: sanitary sewage-＞reinforced biological reaction tank-＞the sewage collecting arm-＞the sewage collecting main-＞reinforced undercurrent wetland-＞qualified discharge.Be specially: the sanitary sewage that peasant household's daily life produces enters reinforced biological reaction tank 1, sewage carries out solid-liquid gas three phase separation in this processing unit, removes the suspended substance in the water, and improves the biochemical of sewage under anoxia condition by the acidication process, remove pollutent, reduce COD.Water outlet is delivered to reinforced undercurrent wetland 2 after sewage collecting arm and the collection of sewage collecting main.This unit is further handled the front-end processing water outlet, mainly removes COD, BOD (biochemical oxygen demand (BOD)), N, P, bacterium, colibacillus, SS pollutents such as (suspended substances in the water quality), guarantees the stable water outlet qualified discharge.In addition, the plant body of reinforced undercurrent wetland 2 outputs or the timely processing treatment of residual body can be used as commodity, feed or fertilizer utilization, have not only prevented secondary pollution, also can make the output plant get utilization.At last, the sewage of handling after up to standard enters the discharging water body.
The engineering construction case
Design for example with five families,
Designed water: 95L/h
Influent quality: COD 500mg/l, ammonia nitrogen 30mg/l, TP (total phosphorus): 3mg/l, PH:7-9.
Effluent quality: COD 50mg/l, ammonia nitrogen 5 (8) mg/l, TN (total nitrogen)≤15mg/l, TP≤0.5mg/l.
Then each structures design variable of this treatment process and specification see following table for details
Table 1 processing unit table look-up
The above-mentioned description to embodiment is can understand and use the utility model for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the utility model is not limited to the embodiment here, and those skilled in the art should be within protection domain of the present utility model for improvement and modification that the utility model is made according to announcement of the present utility model.
Claims (11)
1, a kind of domestic sewage processing system, it is characterized in that: it comprises reinforced biological reaction tank, reinforced undercurrent wetland, it is provided with reinforced biological reaction tank in each household resident family, and the concentrated reinforced undercurrent wetland that is provided with, reinforced biological reaction tank is connected to reinforced undercurrent wetland respectively by the sewage collecting pipeline, handles drainage water up to standard and goes into water channel or river course by current wetland by row of conduits.
2, domestic sewage processing system as claimed in claim 1, it is characterized in that: described reinforced biological reaction tank comprises three phase separation anoxic unit, upflow type anaerobic unit, from the biochemical unit of oxygenation, three unit link to each other by inlet and outlet pipe lines successively, and sanitary sewage flows into the three phase separation anoxic unit by inlet channel, successively after three cell processing by outlet conduit from flowing out from the biochemical unit of oxygenation.
3, domestic sewage processing system as claimed in claim 2, it is characterized in that: described three phase separation anoxic unit crown center be provided with have bell-mouthed vertically to central tube, the hydraucone both sides are provided with baffle plate, two side shields form " eight " word, a side is provided with the extensional pipeline that is connected in the middle of the central tube, and pipeline extends in the unitary central tube of upflow type anaerobic as being communicated with two unitary inlet and outlet pipe lines.
4, domestic sewage processing system as claimed in claim 3 is characterized in that: the described extensional pipeline below that has bell-mouthed central tube also is provided with circular hole.
5, domestic sewage processing system as claimed in claim 2, it is characterized in that: described upflow type anaerobic unit crown center is provided with vertically to central tube, a side is provided with the breach that the extensional pipeline for three phase separation anoxic unit central tube stretches in the middle of the central tube, correspondence is provided with reflector under the central tube, and the central tube both sides are lower than the pipeline place and also hang and be provided with filler.
6, domestic sewage processing system as claimed in claim 2 is characterized in that: describedly be provided with vertically to dividing plate from the biochemical unit of oxygenation crown center, the dividing plate both sides are lower than the pipeline place and hang and be provided with filler.
7, as claim 5 or 6 each described domestic sewage processing systems, it is characterized in that: described hanging filler is an elastic solid filler.
8, domestic sewage processing system as claimed in claim 2, it is characterized in that: described inlet and outlet pipe lines is lower than last inlet and outlet pipe lines successively, open folding shape pipeline above wherein being communicated with the upflow type anaerobic unit and being closed at both ends from the biochemical unitary inlet and outlet pipe lines of oxygenation, the duct section from place, the biochemical unit of oxygenation is lower than the duct section at place, upflow type anaerobic unit.
9, domestic sewage processing system as claimed in claim 1, it is characterized in that: described reinforced undercurrent wetland comprises former soil layer, water distribution layer, filtering layer, supporting layer and water-yielding stratum from top to bottom successively, has planted cash crop or landscape plant on the wherein former soil layer; Water distribution layer is that zeolite is filled; Filtering layer is that quartz sand filter media is filled; Supporting layer is that sandy gravel is filled; Water-yielding stratum is that pebbles is filled; Be provided with water inlet pipe in this water distribution layer, be provided with water shoot in the water-yielding stratum.
10, domestic sewage processing system as claimed in claim 9 is characterized in that: lay high-strength artificial filamentary material graticule mesh between each of described reinforced undercurrent wetland layer.
11, domestic sewage processing system as claimed in claim 1 is characterized in that: described sewage collecting selection for pipeline high strength, corrosion-resistant, tubing that flux is big.
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| CNU2009200671547U CN201338978Y (en) | 2009-01-20 | 2009-01-20 | Processing system of reinforced type biological reacting tank and reinforced type undercurrent wetland |
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| CNU2009200671547U CN201338978Y (en) | 2009-01-20 | 2009-01-20 | Processing system of reinforced type biological reacting tank and reinforced type undercurrent wetland |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745310B (en) * | 2010-02-05 | 2012-05-09 | 江苏博恩环境工程成套设备有限公司 | Method and device for filtration deodorization by utilizing biological soil |
| CN104563266A (en) * | 2014-06-17 | 2015-04-29 | 贵州大学 | Rural domestic sewage high-ridge rice field irrigation regulation control system and construction method thereof |
-
2009
- 2009-01-20 CN CNU2009200671547U patent/CN201338978Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745310B (en) * | 2010-02-05 | 2012-05-09 | 江苏博恩环境工程成套设备有限公司 | Method and device for filtration deodorization by utilizing biological soil |
| CN104563266A (en) * | 2014-06-17 | 2015-04-29 | 贵州大学 | Rural domestic sewage high-ridge rice field irrigation regulation control system and construction method thereof |
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Granted publication date: 20091104 Termination date: 20180120 |