CN103613240A - Multi-stage ecological sewage purification treatment device and method - Google Patents

Multi-stage ecological sewage purification treatment device and method Download PDF

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Publication number
CN103613240A
CN103613240A CN201310575940.9A CN201310575940A CN103613240A CN 103613240 A CN103613240 A CN 103613240A CN 201310575940 A CN201310575940 A CN 201310575940A CN 103613240 A CN103613240 A CN 103613240A
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Prior art keywords
sewage
ecological
bacterium
packing layer
filter pocket
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CN201310575940.9A
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CN103613240B (en
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黄敏
熊明飞
郑克力
赵荣权
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GUANGXI HONGSHENGYUAN ENVIRONMENTAL PROTECTION CO., LTD.
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Institute Of Beibu Bay Guangxi Research Of Environmental Sciences
Guangxi Letter Source Of Students Environmental Protection Technology Co Ltd
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Abstract

The invention discloses a multi-stage ecological sewage purification treatment device which comprises a water collection well, a primary sedimentation basin with a grating, a hydrolysis acidification basin, an ecological filtering tank and an artificial wetland, wherein all the treatment basins are communicated with one another; a filler layer is laid at the bottom of the ecological filtering tank; a foam plate is arranged on the upper part of the ecological filtering tank, and aquatic plants with strong roots are planted on the foam plate; the filler layer is formed by mixing more than two of large gravels, cobblestones and quartz sand; microorganisms are attached to the filler layer to form a microorganism film; the roots of the aquatic plants are buried into the filler layer. The multi-stage ecological sewage purification treatment device disclosed by the invention has a good sewage treatment effect and can treat sewage without power or other energy; the problems of high probability of blockage and large sludge amount of a conventional sewage facility are solved; furthermore, flowers can be cultivated and fishes can be bred as ornamentals, and economical benefits are achieved.

Description

Multi-stage ecological purification is administered the device and method of sewage
Technical field
The present invention relates to dirt, wastewater treatment industry, particularly relate to device and sewage water treatment method that a kind of multi-stage ecological purification is administered sewage.
Background technology
Artificial swamp Ecological Disposal artificial swamp is a comprehensive ecosystem, intergrowth of species, material cycle regeneration principle in its application ecosystem, structure and orthofunction principle, promoting under the eucyclic prerequisite of Pollutants in Wastewater matter, give full play to the production potential of resource, prevent polluting again of environment, obtain the optimum efficiency of sewage disposal and resource utilization.
Use Wastewater Treatment by Constructed Wetlands can trace back to 1903, build Britain Yorkshire Earby in, be considered to that first is for the treatment of the artificial swamp of sewage in the world, operation is until 1992 continuously.And Constructed Wetland Ecology System comes into one's own gradually all over the world and is used, or after proposing root district method (the root-zone-method) theory, 20 century 70 German scholar Kichunth start, root district law theory is emphasized the effect of higher plant in marsh sewage treatment system, first be that they can be the heterotrophic microorganism supply oxygen of its rhizosphere, thereby in reductibility matrix, created a kind of microenvironment of oxygen enrichment, microorganism grows on the root system of waterplant, they have just set up symbiosis cooperative relationship with higher plant, increase the degradation speed of Pollutants in Wastewater, in the place away from root district, be oxygen and the anaerobic environment of holding concurrently, be conducive to hold concurrently oxygen and anaerobism cleaning action, on the other hand, the growth of waterplant root is conducive to improve the hydraulic conductivity energy of bed substrate layer.
Artificial swamp is divided into surface flow artificial swamp and the synthetic wetland of underflow type artificial.  
Surface stream wetland and overland flow land treatment system are closely similar, different: (1), in the stream wet land system of surface, surrounding is built the enclosure wall of certain altitude, maintains certain water layer thickness (being generally 10~30cm); (2) plantation water type plant (as reed etc.) very in wetland.To wetland surface water distribution, current are pulling flow type on wetland surface and advance, and in flow process, contact with the microbial film of soil, plant and plant root, and by physics, chemistry and biological respinse, sewage is purified, and flows out in terminal.
The synthetic wetland of underflow type artificial is generally connected by two-stage wetland, and processing unit composes in parallel.In wetland, according to the difference of processing pollutent, be filled with different media, plant different types of purifying plant.The purification of the physics of water by matrix, plant and microorganism, chemistry and the biological common completion system of approach, has significant removal efficiency to BOD, COD, TSS, TP, TN, algae, petroleum-type etc.; In addition the good nitrification and denitrification functional zone that the exclusive fluidised form of this technique and structure form are obviously better than other processing modes to the removal of TN, TP, petroleum-type.Mainly comprise the cultivation of internal structure system, organized enzyme body medium system, plant and collocation system, water distribution and water gathering system, anti-clogging plug technology, winter operation technology.The form of the synthetic wetland of underflow type artificial is divided into vertical flow underflow type artificial wetland and horizontal flow underflow type artificial wet land.Utilize different fluidised form features in wetland to purify water inlet.River after undercurrent type wetland purification can reach surface water III class standard, then discharges by water exhaust system.
Mainly there are the following problems for Traditional Man wetland:
1. artificial swamp tends to blockage phenomenon at Practical Project after operation for some time, and country sewage, often with rubbish such as plastics bags, directly enters Sewage treatment systems and easily results in blockage.;
2. winter operation problem, the reduction of temperature can affect the normal operation of artificial swamp, and after winter mercury dropped, the plant of wetland is withered, and the clearance of pollutent is reduced.
3. build up the artificial swamp of input, long operational time after, there is the phenomenons such as obstruction,
Artificial wet land system does not produce economic benefit, and the rural area management fund of disposing of sewage is implemented difficulty, and nobody's management makes treatment facility thereby cannot normally move, even discarded.
Summary of the invention
The present invention aims to provide device and the sewage water treatment method that a kind of multi-stage ecological purification is administered sewage, solves that prior art artificial swamp easily stops up, degradation problem under processing efficiency during winter.
Multi-stage ecological purification of the present invention is administered the device of sewage, comprises pump well, is provided with preliminary sedimentation tank, hydrolysis acidification pool, ecological filter pocket, the artificial swamp of grid, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
In thick gravel, pebbles, quartz sand two kinds of described packing layer mix above, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer.
Described ecological filter pocket is comprised of the wide groove of 0.8~1.5m, and the packing layer thickness of bottom is 150~400mm.
Described microorganism comprises two kinds of above combinations in bacterium;
Described bacterium comprises pseudomonas, achromobacter, Flavobacterium, nitrobacteria, football shirt bacterium, Beggiatoa, sends out sulphur bacterium, mould.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 2/10000ths to 8/10000ths.
Described microorganism can also comprise metazoan, and described metazoan is wheel animalcule.
Described metazoal injected volume is every gram, every gram~3,000 ten thousand tons of sewage of 1,500 ten thousand tons of sewage.
Preferably, the device that described multi-stage ecological purification is administered sewage also comprises planktonic organism pond, and described planktonic organism pond is located between ecological filter pocket and artificial swamp, is communicated with respectively with ecological filter pocket and artificial swamp, drops into photosynthetic bacteria and fish in planktonic organism pond.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 5~20cfu.
Described artificial swamp is surface flow artificial swamp.
The present invention also provides a kind of multi-stage ecological purification to administer the method for sewage, and the method comprises the following steps:
First A, sanitary sewage pass through grid, after the larger solid impurity in water and floating matter are blocked, enter preliminary sedimentation tank, then flow into hydrolysis acidification pool;
B, sanitary sewage, in hydrolysis acidification pool, are hydrolyzed, acidification reaction successively, after making the hydrolysis of indissoluble macromole, flow in ecological filter pocket;
In C, described ecological filter pocket, be provided with microorganism and root system of plant, sewage flows in planktonic organism pond after the microorganism in ecological filter pocket and root system of plant absorb ammonia nitrogen in water, phosphor contaminant matter;
The discharge after artificial swamp is processed of D, sewage.
Described ecological filter pocket bottom is provided with two kinds of packing layers that mix above in thick gravel, pebbles, quartz sand, and attached microbial on packing layer, forms microbial film; Cystose is placed on ecological filter pocket top, soilless culture plantation ornamental plant or flowers, and these root systems of plant go deep into groove and penetrate in packing layer.
Described artificial swamp is surface flow artificial swamp.
The present invention also provides a kind of multi-stage ecological purification to administer the preferred method of sewage, and the method comprises the following steps:
First A, sanitary sewage pass through grid, after the larger solid impurity in water and floating matter are blocked, enter preliminary sedimentation tank, then flow into hydrolysis acidification pool;
B, sanitary sewage, in hydrolysis acidification pool, are hydrolyzed, acidification reaction successively, after making the hydrolysis of indissoluble macromole, flow in ecological filter pocket;
In C, described ecological filter pocket, be provided with microorganism and root system of plant, sewage flows in planktonic organism pond after the microorganism in ecological filter pocket and root system of plant absorb ammonia nitrogen in water, phosphor contaminant matter;
In D, described planktonic organism pond, throw in photosynthetic bacteria, planktonic organism and fish, the effect by photosynthetic bacteria in planktonic organism pond of the organism in sewage is converted into planktonic bait, and then sewage flows in artificial swamp;
The discharge after artificial swamp is processed of E, sewage.
Described ecological filter pocket bottom is provided with the two or more packing layers that mix in thick gravel, pebbles, quartz sand, and attached microbial on packing layer, forms microbial film; Cystose is placed on ecological filter pocket top, cultivation technique without soil plantation ornamental plant or flowers, and these root systems of plant go deep into groove and penetrate in packing layer;
Described planktonic organism pond Mesichthyes be take plankton as food source, and in photosynthetic bacteria tranformation sewage, organism is planktonic organism bait, and fish faeces, as photosynthetic bacteria nutriment, has formed complete food chain;
Described artificial swamp is surface flow artificial swamp.
Principle of work of the present invention is as follows:
First sanitary sewage passes through grid, after the larger solid impurity in water and floating matter are blocked, enters preliminary sedimentation tank, and sewage is further sand setting in preliminary sedimentation tank, to alleviate and to protect subsequent biological treatment load and equipment normally to move.
Sanitary sewage, in hydrolysis acidification pool, is hydrolyzed, acidification reaction successively, then flows into ecological filter pocket.In hydrolysis section, complicated, larger molecular organics indissoluble, difficult degradation by extracellular enzyme be hydrolyzed to simply, solvability small organic molecule good, readily biodegradable; In acidifying section, deliquescent organism is converted into micromolecular organic acid, alcohol, aldehyde etc. by facultative bacteria; Thereby improved BOD5/COD value, the biodegradability of sewage can be got a promotion, the some organic pollutants matter of also can degrading simultaneously.
In ecological filter pocket, hang organism compatibility filling, obligate microorganism can be attached to and form microbial film above, described obligate microorganism is mainly bacteria combination, can also coordinate and drop into metazoan, add the original protozoon just existing in sewage, as campanularian, cover fine worm, etc. branch worm, paramecium etc., formed a perfect microbiological treatment system, can efficiently remove the pollution substance in water; Ecological filter pocket top adopts cultivation technique without soil plantation ornamental plant or flowers, these root systems of plant go deep into fully contacting with sewage in groove, can effectively absorb pollution substance and the mud such as ammonia nitrogen in water, phosphorus, for plant-growth provides nutrient, when removing pollutent, can produce certain economic benefit, guarantee that crop is not subject to the impact of seasonal variation simultaneously, solved the large problem of easy obstruction, sludge quantity that conventional wastewater treatment facility exists.
Ecological filter pocket water outlet enters in planktonic organism pond, organism in sewage is converted into planktonic bait by the effect of photosynthetic bacteria, by throwing in fish, fish be take plankton as food source, form a complete food chain, make it to form an optimum ecosystem, guarantee the water quality of water outlet.
The water outlet of planktonic organism pond enters artificial swamp, artificial swamp as last one treatment process, organism in sewage, nitrogen, phosphorus etc. or by plant and microorganism, done nutrition and directly absorb, or by root-zone microorganism excess accumulation, decomposition and remove by nitrated, denitrification, and can remove SS, colourity, to guarantee that water outlet can stably reaching standard discharge.
The present invention adopts ecological filter pocket to carry out soilless culture to aquatic ornamental plant, avoids seasonal variation flowers to be caused to the phenomenon of frost in winter, summer waterlogging caused by excessive rain, and waterplant, by absorbing ammonia nitrogen as nutrient, can reach the effect of removing ammonia nitrogen, phosphorus simultaneously.Ecological filter pocket is by being comprised of the wide groove of 0.8~1.5m, the packing layer thickness of bottom is 150~400mm, packing layer is by media assemblages such as thick gravel, pebbles, quartz sands, in packing layer, put into the microorganisms such as bacterium and metazoan, cystose is placed on top, the waterplant of plantation well developed root system, and root system of plant stretches in packing layer, sewage flows through from centre, and the pollutents such as ammonia nitrogen, phosphorus are absorbed by microorganism and root system of plant.So not only play the effect of filtration, be also convenient to desilting, prevent from, because overlong time causes sludge blockage, both can alleviating the sludge loading in artificial swamp, also reach the effect of beautifying the environment simultaneously.
In planktonic organism pond, organism in sewage is converted into planktonic bait by the effect of photosynthetic bacteria, by throwing in fish, fish be take plankton as food source, fish faeces is that photosynthetic bacteria supplies nutrients, thereby form a complete food chain, make it to form an optimum ecosystem, play a part oxygenation, precipitation, further degradation of organic substances.Planktonic organism pond is not subject to the restriction of power and temperature, having a power failure, under the situation such as unpowered, winter low temperature, still can normally move, and has stablized the water quality of water outlet.
It is filler that artificial swamp adopts gravel, pebbles, quartz sand, sand etc., and for waterplant provides the carrier of existence, water quality, after the processing of artificial swamp, has played the effect of filtration, makes the current of artificial wet land system unaffected.Waterplant, by Root Absorption ammonia nitrogen, phosphorus, can reach the effect of the concentration that reduces ammonia nitrogen, phosphorus, guarantees effluent quality qualified discharge.Artificial swamp bottom arranges back-purge system simultaneously, regularly start, and, therefore there is not latch up phenomenon in the mud cleaning by deposit buildup, also can avoid stirring.
Described artificial swamp is surface flow artificial marshland preferably, reason be surface flow artificial swamp without propulsion source is provided, can realize decontamination, treatment tank before configuration, realized the technique effect of whole process without propulsion source, and it is effective to dispose of sewage, the time that can continue use is long.Traditional surface flow Wastewater Treatment by Constructed Wetlands is due to unpowered operation of equipment, builds up after examination ignoring that unattended often abandons, and makes it weedy any economic benefit that do not produce.And the present invention utilizes ecological filter pocket carry out soilless culture of flowers and utilize the plant of artificial swamp as herbage, aquatic, can obtain certain income simultaneously, overcomes the situation that does not produce any economic benefit, can well address these problems.
The present invention also can coordinate underflow type artificial wet land to use, and just artificial swamp partly needs the electric power of dispensing part, can realize good wastewater treatment efficiency equally.
The present invention is based on multi-stage ecological purification and nutrition cascade utilization principle, to monotechnicss such as acidication, waterplant insulation soilless culture, planktonic organism purification and artificial swamps, carry out integrated, be applied to rural domestic sewage treatment, effluent quality can reach the requirement of relevant criterion.And by planting plants and aquatic, can obtain certain economic benefit.Meanwhile, engineering operation is subject to seasonal effect less, and operational management is simple, cost is low, not limited by electricity consumption, in situation about having a power failure, also can guarantee system operation steady in a long-term.
The present invention is based on the thinking of " many arm of the services cooperation " solution domestic sewage treatment technical problem, according to the ultimate principle of multi-stage ecological purification and nutrition cascade utilization, select integrated acidication, waterplant insulation soilless culture, planktonic organism purifies and the monotechnics such as artificial swamp according to the reasonable sequencing of ecological chain relation; This four large ultimate principle, is embodied in each pool structure and annexation on waste disposal plant, and step and the flow process of the sewage water treatment method thereupon forming.
The present invention is technological improvement in addition on Traditional Man wetland basis, than Traditional Man wetland, has more following features:
1. after hydrolyzing process, increase ecological filter pocket, N, P and suspended substance are here removed by the filtration shallow-layer below soilless cultivating flowers coring and coring, protect follow-up wetland bed obstruction.
2. after ecological filter pocket, increase planktonic organism pond, make COD obtain further degraded
3. the flowers in ecological filter pocket and the pond Mesichthyes that swims not only can be beautified the environment, and for villager, view and admire spare time, return local farmers and bring economical and practical.
4. without special messenger, keep an eye on; Noiselessness; Free from extraneous odour, be one can decontamination, can see again flower reward fish, bring the sewage works of economic benefit simultaneously
Not limited by electricity consumption, in situation about having a power failure, can guarantee system operation steady in a long-term yet
6. system is difficult for stopping up, and sludge creation amount is few.
Accompanying drawing explanation
The multi-stage ecological purification that Fig. 1 provides for the embodiment of the present invention is administered the device schematic block diagram of sewage.
Embodiment
Below in conjunction with accompanying drawing, further describe the present invention.
Embodiment 1:
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer is mixed by thick gravel, pebbles, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 0.8m, and the packing layer thickness of bottom is 150mm.
Described microorganism is bacterium and metazoan;
Described bacterium is pseudomonas, achromobacter, Flavobacterium, nitrobacteria, football shirt bacterium, Beggiatoa, send out sulphur bacterium, mould mixing;
Described metazoan is wheel animalcule.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 2/10000ths;
Described metazoal injected volume is every gram, 1,500 ten thousand tons of sewage.
The method that the present embodiment is disposed of sewage is:
The present invention also provides a kind of multi-stage ecological purification to administer the method for sewage, and the method is following steps:
First A, sanitary sewage pass through grid, after the larger solid impurity in water and floating matter are blocked, enter preliminary sedimentation tank, then flow into hydrolysis acidification pool;
B, sanitary sewage, in hydrolysis acidification pool, are hydrolyzed, acidification reaction successively, after making the hydrolysis of indissoluble macromole, flow in ecological filter pocket;
In C, described ecological filter pocket, be provided with microorganism and root system of plant, sewage flows in planktonic organism pond after the microorganism in ecological filter pocket and root system of plant absorb ammonia nitrogen in water, phosphor contaminant matter;
The discharge after artificial swamp is processed of D, sewage.
Embodiment 2
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer is mixed by pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.5m, and the packing layer thickness of bottom is 400mm.
Described microorganism is bacterium and metazoan;
Described bacterium is the mixing of pseudomonas, achromobacter, Flavobacterium;
Described metazoan is wheel animalcule.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 8/10000ths;
Described metazoal injected volume is every gram, 3,000 ten thousand tons of sewage.
The method that the present embodiment is disposed of sewage is:
The present invention also provides a kind of multi-stage ecological purification to administer the method for sewage, and the method is following steps:
First A, sanitary sewage pass through grid, after the larger solid impurity in water and floating matter are blocked, enter preliminary sedimentation tank, then flow into hydrolysis acidification pool;
B, sanitary sewage, in hydrolysis acidification pool, are hydrolyzed, acidification reaction successively, after making the hydrolysis of indissoluble macromole, flow in ecological filter pocket;
In C, described ecological filter pocket, be provided with microorganism and root system of plant, sewage flows in planktonic organism pond after the microorganism in ecological filter pocket and root system of plant absorb ammonia nitrogen in water, phosphor contaminant matter;
The discharge after artificial swamp is processed of D, sewage.
Embodiment 3
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer is mixed by thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1m, and the packing layer thickness of bottom is 200mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium;
Described bacterium is Beggiatoa, send out sulphur bacterium, mould mixing;
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 3/10000ths.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 8cfu.
The method that the present embodiment is disposed of sewage is:
First A, sanitary sewage pass through grid, after the larger solid impurity in water and floating matter are blocked, enter preliminary sedimentation tank, then flow into hydrolysis acidification pool;
B, sanitary sewage, in hydrolysis acidification pool, are hydrolyzed, acidification reaction successively, after making the hydrolysis of indissoluble macromole, flow in ecological filter pocket;
In C, described ecological filter pocket, be provided with microorganism and root system of plant, sewage flows in planktonic organism pond after the microorganism in ecological filter pocket and root system of plant absorb ammonia nitrogen in water, phosphor contaminant matter;
In D, described planktonic organism pond, throw in photosynthetic bacteria, planktonic organism and fish, the effect by photosynthetic bacteria in planktonic organism pond of the organism in sewage is converted into planktonic bait, and then sewage flows in artificial swamp;
The discharge after artificial swamp is processed of E, sewage.
Embodiment 4
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.2m, and the packing layer thickness of bottom is 250mm;
Described microorganism is bacterium;
Described bacterium is football shirt bacterium, Beggiatoa, send out sulphur bacterium, mould mixing, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 15cfu.
The method that the present embodiment is disposed of sewage is:
First A, sanitary sewage pass through grid, after the larger solid impurity in water and floating matter are blocked, enter preliminary sedimentation tank, then flow into hydrolysis acidification pool;
B, sanitary sewage, in hydrolysis acidification pool, are hydrolyzed, acidification reaction successively, after making the hydrolysis of indissoluble macromole, flow in ecological filter pocket;
In C, described ecological filter pocket, be provided with microorganism and root system of plant, sewage flows in planktonic organism pond after the microorganism in ecological filter pocket and root system of plant absorb ammonia nitrogen in water, phosphor contaminant matter;
In D, described planktonic organism pond, throw in photosynthetic bacteria, planktonic organism and fish, the effect by photosynthetic bacteria in planktonic organism pond of the organism in sewage is converted into planktonic bait, and then sewage flows in artificial swamp;
The discharge after artificial swamp is processed of E, sewage.
Embodiment 5
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.1m, and the packing layer thickness of bottom is 230mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium;
Described bacterium is pseudomonas and the mixing of sending out sulphur bacterium.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 7/10000ths;
Embodiment 6
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.4m, and the packing layer thickness of bottom is 150mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium;
Described bacterium is the mould mixing of Beggiatoa and ground;
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 6/10000ths.
Embodiment 7
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 0.9m, and the packing layer thickness of bottom is 350mm;
Described microorganism is bacterium;
Described bacterium is the mixing of achromobacter and Flavobacterium.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 5/10000ths.
Embodiment 8
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.35m, and the packing layer thickness of bottom is 360mm;
Described microorganism is bacterium and metazoan;
Described bacterium is the mixing of nitrobacteria and football shirt bacterium;
Described metazoan is wheel animalcule.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths;
Described metazoal injected volume is every gram, 2,000 ten thousand tons of sewage.
Embodiment 9
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.0m, and the packing layer thickness of bottom is 300mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium;
Described bacterium is pseudomonas, achromobacter, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 3/10000ths.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 5cfu.
Embodiment 10
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.2m, and the packing layer thickness of bottom is 200mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium;
Described bacterium is Flavobacterium, nitrobacteria, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 20cfu.
Embodiment 11
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.2m, and the packing layer thickness of bottom is 200mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium;
Described bacterium is football shirt bacterium, Beggiatoa, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 5/10000ths.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 10cfu.
Embodiment 12
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.1m, and the packing layer thickness of bottom is 220mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium;
Described bacterium for send out a sulphur bacterium, mould, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 6/10000ths.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 16cfu.
Embodiment 13
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.1m, and the packing layer thickness of bottom is 220mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium;
Described bacterium is pseudomonas, send out sulphur bacterium, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 8/10000ths.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 13cfu.
Embodiment 14
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.1m, and the packing layer thickness of bottom is 220mm, and photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium;
Described bacterium is for sending out sulphur bacterium, football shirt bacterium;
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 3/10000ths.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 17cfu.
Embodiment 15
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.4m, and the packing layer thickness of bottom is 260mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium;
Described bacterium is nitrobacteria, football shirt bacterium, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 11cfu.
Embodiment 16
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.0m, and the packing layer thickness of bottom is 300mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium and metazoan;
Described bacterium is pseudomonas, achromobacter, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 3/10000ths.
Described metazoan is wheel animalcule.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths;
Described metazoal injected volume is every gram, 1,500 ten thousand tons of sewage.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 9cfu.
Embodiment 17
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.2m, and the packing layer thickness of bottom is 200mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium and metazoan;
Described bacterium is Flavobacterium, nitrobacteria, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths.
Described metazoan is wheel animalcule.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths;
Described metazoal injected volume is every gram, 2,000 ten thousand tons of sewage.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 8cfu.
Embodiment 18
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.2m, and the packing layer thickness of bottom is 200mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium and metazoan;
Described bacterium is football shirt bacterium, Beggiatoa, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 5/10000ths.
Described metazoan is wheel animalcule.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths;
Described metazoal injected volume is every gram, 1,800 ten thousand tons of sewage.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 13cfu.
Embodiment 19
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.1m, and the packing layer thickness of bottom is 220mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium and metazoan;
Described bacterium for send out a sulphur bacterium, mould, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 6/10000ths.
Described metazoan is wheel animalcule.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths;
Described metazoal injected volume is every gram, 3,000 ten thousand tons of sewage.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 6cfu.
Embodiment 20
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.1m, and the packing layer thickness of bottom is 220mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium and metazoan;
Described bacterium is pseudomonas, send out sulphur bacterium, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 8/10000ths.
Described metazoan is wheel animalcule.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths;
Described metazoal injected volume is every gram, 2,600 ten thousand tons of sewage.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 7cfu.
Embodiment 21
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.1m, and the packing layer thickness of bottom is 220mm, and photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium and metazoan;
Described bacterium is for sending out sulphur bacterium, football shirt bacterium;
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 3/10000ths.
Described metazoan is wheel animalcule.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths;
Described metazoal injected volume is every gram, 2,500 ten thousand tons of sewage.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 11cfu.
Embodiment 22
Multi-stage ecological purification of the present invention is administered the device of sewage, is pump well, the preliminary sedimentation tank that is provided with grid, hydrolysis acidification pool, ecological filter pocket, planktonic organism pond, artificial swamp, between each treating pond, is communicated with successively;
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
Described packing layer mixes in thick gravel, pebbles, quartz sand, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer;
Described ecological filter pocket is comprised of the wide groove of 1.4m, and the packing layer thickness of bottom is 260mm;
Photosynthetic bacteria and fish are dropped in described planktonic organism pond.
Described microorganism is bacterium and metazoan;
Described bacterium is nitrobacteria, football shirt bacterium, the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths.
Described metazoan is wheel animalcule.
The injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 4/10000ths;
Described metazoal injected volume is every gram, 2,900 ten thousand tons of sewage.
The injected volume of described photosynthetic bacteria is that sewage per ton is thrown in 19cfu.
Experimental example 1
Experiment address: experiment hillside fields, Qingxiu District village, Nanning City 1#, 2#, 3#;
Experimental design waste disposal plant: embodiment 1;
Experiment method: sanitary sewage blow-off pipe is passed into waste disposal plant, process the water of front and back in collecting on the same day waste disposal plant, detect; Sewage detection the results are shown in Table 1:
Each water-quality guideline result of table 1 monitoring point, in table, all data units are mg/L
Note: L is for not detecting the detection limit that its numerical value is this analysis project.
Monitoring result shows, tests hillside fields 1#, 2#, 3# sanitary sewage each monitoring factor after the present invention processes and all reaches one-level category-B standard in < < urban wastewater treatment firm pollutant emission standard > > GB18918-2002 table 1.
Experimental example 2
Experiment address: Tianlin County village, white city sample plot 1#, 2#;
Experimental design waste disposal plant: embodiment 3;
Experiment method: sanitary sewage blow-off pipe is passed into waste disposal plant, process the water of front and back in collecting on the same day waste disposal plant, detect;
Sewage detection the results are shown in Table 2:
Each water-quality guideline result of table 2 monitoring point, in table, all data units are mg/L
Note: L is for not detecting the detection limit that its numerical value is this analysis project.
Monitoring result shows, tests hillside fields 1#, 2#, 3# sanitary sewage each monitoring factor after the present invention processes and all reaches one-level category-A standard in < < urban wastewater treatment firm pollutant emission standard > > GB18918-2002 table 1.

Claims (14)

1. multi-stage ecological purification is administered a device for sewage, comprises pump well, is provided with preliminary sedimentation tank, hydrolysis acidification pool, ecological filter pocket, the artificial swamp of grid, between each treating pond, is communicated with successively, it is characterized in that:
Described ecological liquid trench bottom is covered with packing layer, and cystose is placed on top, plants the waterplant that is implanted with well developed root system;
In thick gravel, pebbles, quartz sand two kinds of described packing layer mix above, and attached microbial on packing layer forms microbial film;
The root system of described waterplant penetrates in packing layer.
2. multi-stage ecological purification as claimed in claim 1 is administered the device of sewage, it is characterized in that: described ecological filter pocket is comprised of the wide groove of 0.8~1.5m, and the packing layer thickness of bottom is 150~400mm.
3. multi-stage ecological purification as claimed in claim 1 is administered the device of sewage, it is characterized in that:
Described microorganism comprises two kinds of above combinations in bacterium;
Described bacterium comprises pseudomonas, achromobacter, Flavobacterium, nitrobacteria, football shirt bacterium, Beggiatoa, sends out sulphur bacterium, mould.
4. multi-stage ecological purification as claimed in claim 3 is administered the device of sewage, it is characterized in that: the injected volume of described bacterium be every kind of bacterium be equivalent to sewage quantity 2/10000ths to 8/10000ths.
5. multi-stage ecological purification as claimed in claim 3 is administered the device of sewage, it is characterized in that: described microorganism also comprises metazoan, and described metazoan is wheel animalcule, and injected volume is every gram, every gram~3,000 ten thousand tons of sewage of 1,500 ten thousand tons of sewage.
6. multi-stage ecological purification as claimed in claim 1 is administered the device of sewage, it is characterized in that: also comprise planktonic organism pond, described planktonic organism pond is located between ecological filter pocket and artificial swamp, is communicated with respectively with ecological filter pocket and artificial swamp, drops into photosynthetic bacteria and fish in planktonic organism pond.
7. multi-stage ecological purification as claimed in claim 6 is administered the device of sewage, it is characterized in that: the injected volume of described photosynthetic bacteria is sewage 5~20cfu per ton.
8. multi-stage ecological purification as claimed in claim 1 is administered the device of sewage, it is characterized in that: described artificial swamp is surface flow artificial swamp.
9. multi-stage ecological purification is administered a method for sewage, it is characterized in that comprising the following steps:
First A, sanitary sewage pass through grid, after the larger solid impurity in water and floating matter are blocked, enter preliminary sedimentation tank, then flow into hydrolysis acidification pool;
B, sanitary sewage, in hydrolysis acidification pool, are hydrolyzed, acidification reaction successively, after making the hydrolysis of indissoluble macromole, flow in ecological filter pocket;
In C, described ecological filter pocket, be provided with microorganism and root system of plant, sewage flows in planktonic organism pond after the microorganism in ecological filter pocket and root system of plant absorb ammonia nitrogen in water, phosphor contaminant matter;
The discharge after artificial swamp is processed of D, sewage.
10. multi-stage ecological purification as claimed in claim 9 is administered the method for sewage, it is characterized in that: described ecological filter pocket bottom is provided with two kinds of packing layers that mix above in thick gravel, pebbles, quartz sand, attached microbial on packing layer, forms microbial film; Cystose is placed on ecological filter pocket top, soilless culture plantation ornamental plant or flowers, and these root systems of plant go deep into groove and penetrate in packing layer.
The method that 11. multi-stage ecological purifications as claimed in claim 9 are administered sewage, is characterized in that: described artificial swamp is surface flow artificial swamp.
12. 1 kinds of multi-stage ecological purifications are administered the method for sewage, it is characterized in that comprising the following steps:
First A, sanitary sewage pass through grid, after the larger solid impurity in water and floating matter are blocked, enter preliminary sedimentation tank, then flow into hydrolysis acidification pool;
B, sanitary sewage, in hydrolysis acidification pool, are hydrolyzed, acidification reaction successively, after making the hydrolysis of indissoluble macromole, flow in ecological filter pocket;
In C, described ecological filter pocket, be provided with microorganism and root system of plant, sewage flows in planktonic organism pond after the microorganism in ecological filter pocket and root system of plant absorb ammonia nitrogen in water, phosphor contaminant matter;
In D, described planktonic organism pond, throw in photosynthetic bacteria, planktonic organism and fish, the effect by photosynthetic bacteria in planktonic organism pond of the organism in sewage is converted into planktonic bait, and then sewage flows in artificial swamp;
The discharge after artificial swamp is processed of E, sewage.
The method that 13. multi-stage ecological purifications as claimed in claim 12 are administered sewage, it is characterized in that: described ecological filter pocket bottom is provided with two kinds of packing layers that mix above in thick gravel, pebbles, quartz sand, attached microbial on packing layer, forms microbial film; Cystose is placed on ecological filter pocket top, cultivation technique without soil plantation ornamental plant or flowers, and these root systems of plant go deep into groove and penetrate in packing layer.
The method that 14. multi-stage ecological purifications as claimed in claim 12 are administered sewage, is characterized in that: described artificial swamp is surface flow artificial swamp.
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