CN103241906A - Sewage treatment method and device for reusing reclaimed water as landscape water - Google Patents

Sewage treatment method and device for reusing reclaimed water as landscape water Download PDF

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CN103241906A
CN103241906A CN2013102056789A CN201310205678A CN103241906A CN 103241906 A CN103241906 A CN 103241906A CN 2013102056789 A CN2013102056789 A CN 2013102056789A CN 201310205678 A CN201310205678 A CN 201310205678A CN 103241906 A CN103241906 A CN 103241906A
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water
pool
tank
iron charcoal
reaction tank
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CN103241906B (en
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贺欣
欧阳博
马克·奥斯特兰德
于雷
高姍姍
张列宇
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Hundred Austrian source of environmental protection technology (Beijing) Co., Ltd.
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WUXI BIOHAVEN ECOLOGY ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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Abstract

The invention discloses a sewage treatment device for reusing reclaimed water as landscape water. The device comprises a multifunctional adjusting tank, a deodorization device, an internal electrolysis anaerobic/anoxic biological iron carbon reaction tank, a flexible biological membrane contact oxidation tank, an air blower room, a sedimentation tank and an ecological landscape pond. The device adopts an A2/O technology and combines the advantages of two wastewater treatment methods including an iron carbon filtration method and a biological iron method. In a sewage treatment process, micro-electrolysis is used as a pretreatment technology; and when the sewage flows through three different functional areas including an anaerobic area, an anoxic area and an aerobic area, the organics, N, P and the like in the sewage are removed under the effect of different microbial floras. In combination with the ecological landscape pond, the dissolved oxygen quantity of the water body is increased, and the water quality is further improved. The device for reusing reclaimed water as landscape water is favorable for protecting the environment, reducing the cost of environment beautifying and protecting the ecological balance of aquatic organisms, and has the characteristics of stability and reliability, low operation energy consumption, saving of operation cost, easiness in maintenance and management and the like.

Description

A kind of sewage water treatment method of reclaimed water reuse landscape water body and device
Technical field
The invention belongs to sewage treatment area, relate to a kind of waste disposal plant of reclaimed water reuse landscape water body particularly.
The invention still further relates to a kind of method of utilizing said apparatus to carry out sewage disposal.
Background technology
At present, China is the country of a water resources critical shortage, accounts for 8% of world's gross amount of water resources, is but keeping the existence that accounts for the world's 21.15% population.Serious day by day along with the shortage of Freshwater resources and water pollution; external increasing city with sewage purification and reuse in consumable water of sight and amusement; this not only is beneficial to environment protection, reduces the expense of beautifying the environment, and is conducive to protect the hydrobiological eubiosis.
At present China is at the early-stage in consumable water of sight and amusement with sewage purification and reuse, use arrange that floor space is big, running cost is higher, particularly the organic waste water reclamation rate of high density is low, just directly effluxes after the general simple process.Thereby, how to use cheap cost-effective with the reusing sewage landscape water body, reach beautify the environment, the purpose of maintaining ecological balance just becomes current scholar and the important topic of engineering staff's research.
Summary of the invention
The object of the present invention is to provide a kind of waste disposal plant of reclaimed water reuse landscape water body.
Another purpose of the present invention is to provide a kind of method of utilizing said apparatus to carry out sewage disposal.
For achieving the above object, the waste disposal plant of reclaimed water reuse landscape water body provided by the invention mainly comprises:
Multi-functional equalizing tank, its feed-water end is provided with planar grille, electrolysis anaerobe iron charcoal reaction tank in the water side connects;
The inside of the biological iron charcoal of the inside of interior electrolysis anaerobe iron charcoal reaction tank and interior electrolysis anoxic reaction tank all is hung with the combined elastic filler, and the pond inner bottom part all is placed with iron filler and charcoal filler; The biological iron charcoal of electrolysis anoxic reaction tank in interior electrolysis anaerobe iron charcoal reaction tank water side connects, the inner gas blower that connects of the biological iron charcoal of interior electrolysis anoxic reaction tank carries out the water body oxygenation;
The biological iron charcoal of interior electrolysis anoxic reaction tank water side connects biological iron charcoal and holds back the pond, biological iron charcoal hold back the bottom, pond be connected to by sludge pipe in the bottom of electrolysis anaerobe iron charcoal reaction tank, biological iron charcoal is held back the water side, pond and is connected flexible microbial film catalytic oxidation filter tank;
Flexible biofilm carrier is hung in the inside in flexible microbial film catalytic oxidation filter tank, and flexible microbial film catalytic oxidation filter tank inner bottom part is equipped with aeration head, and aeration head is connected to gas blower, to the water body oxygenation in flexible microbial film catalytic oxidation filter tank; Water side, flexible microbial film catalytic oxidation filter tank connects settling tank, the bottom of electrolysis anaerobe iron charcoal reaction tank in settling tank is connected to by sludge pipe;
Settling tank connects the ecoscape pool;
Multi-functional equalizing tank, interior electrolysis anaerobe iron charcoal reaction tank, the biological iron charcoal of interior electrolysis anoxic reaction tank, flexible microbial film catalytic oxidation filter tank all are connected odor removal with settling tank.
Described waste disposal plant, wherein, electrolysis anaerobe iron charcoal reaction tank in multi-functional equalizing tank water side connects by submersible sewage pump.
Described waste disposal plant, wherein, the combined elastic filler of hanging in the biological iron charcoal of the interior and interior electrolysis anoxic of the interior electrolysis anaerobe iron charcoal reaction tank reaction tank is Φ 120, L1200 combined elastic filler, iron filler is pressed 20-30kg/kg COD and is calculated, and the charcoal filler is pressed 30-40kg/kg COD and calculated
Described waste disposal plant, wherein, the flexible biofilm carrier of inside, flexible microbial film catalytic oxidation filter tank is pressed 1-2m 2/ m 3Hang.
Described waste disposal plant, wherein, what flexible microbial film catalytic oxidation filter tank inner bottom part was laid is the disc type micro porous aeration head, and the disc type micro porous aeration head all is connected with gas blower by the DN100 blast main with the biological iron charcoal of interior electrolysis anoxic reaction tank inside.
Described waste disposal plant, wherein, the ecoscape pool is divided into the high-order pool and the low level pool, and the depth of water on the high-order pool is higher than the depth of water on the low level pool; On the low level pool submersible pump is set, by submersible pump the water on the low level pool is evacuated to the high-order pool, slow the falling of water in the high-order pool and flow into the low level pool down simultaneously, thereby formation flowing water view; In the view pool, establish artificial floating island, plant on the chinampa and be implanted with that view is good, strong stress resistance, the plant that can improve water quality.
Described waste disposal plant, wherein, odor removal is HSCC type biological deodorizing filter bed.
The method of utilizing above-mentioned waste disposal plant to carry out sewage disposal provided by the invention, its main process is:
Sewage enters into multi-functional equalizing tank through grid filtration, water quality, the water yield of sewage are carried out the homogenizing adjusting and made animals and plants wet goods pollutent hydrolytic digestion, and electrolysis anaerobe iron charcoal reaction tank and interior electrolysis anoxic biology iron charcoal reaction tank carries out biochemical also dephosphorization denitrogenation and the raising BOD of decomposing of anaerobism anoxic to organic pollutant in entering then 5/ COD CrRatio enters biological iron charcoal then and holds back in the pond;
Biological iron charcoal holds back that mud in the pond carries out recycle in the electrolysis anaerobe iron charcoal reaction tank in being back to and digestion decrement is handled, sewage flows into flexible microbial film catalytic oxidation filter tank, precipitate through the aerobic biochemical decomposition with by flowing into settling tank after the nitrated ammonia nitrogen denitrogenation processing of nitration denitrification biological process, the clear water of post precipitation flows into the ecoscape pool, carries out recycle and digestion decrement processing in precipitation enters in the electrolysis anaerobe iron charcoal reaction tank;
In the ecoscape pool low level pool water is evacuated to the high-order pool, high-order pool water flows into the low level pool down through being communicated with slow the falling of canal and forms the flowing water view simultaneously;
Ecoscape is established artificial floating island in the pool, plants on the artificial floating island and is implanted with that view is good, strong stress resistance, the plant that can improve water quality, and ecoscape has been put organism in water in a suitable place to breed in the pool; By the ecoscape pool improving the water body dissolved oxygen, and by the absorption conversion process of plant to remove organic pollutant and nitrogen in the water, phosphor contaminant.
Described method, wherein, the ecoscape pool is natural substrate and sloping bank under water, and natural substrate kind is implanted with one or more of water caltrop, pale reddish brown foxtail, black algae under water, and the staggered band in land and water kind is implanted with wild arrowhead and calamus.
Described method, wherein, the plant of planting on the artificial floating island is one or more in yellow flag, Siberian iris, typha minima grass and the Canna generalis Bailey.
The present invention has that technical process is simple, floor space is little, installations and facilities are succinct, utilization ratio is high, treatment effect is good, advantages such as equipment construction investment simultaneously is little, economic operating cost, high concentrated organic wastewater or sanitary sewage are carried out deep purifying, be back to use in the landscape water body after reaching " water quality standard of reclaimed water reuse landscape water body " (CJ/T 95 2000), save water resources greatly, can be widely applied to landscape water bodies such as incity, city size natural lake, man-made lake, moat.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Main mark nomenclature in the accompanying drawing:
Water-in 1; Grid 2; Multi-functional equalizing tank 3; Submersible sewage pump 4; Odor removal 5; Interior electrolysis anaerobe iron charcoal reaction tank 6; The biological iron charcoal of interior electrolysis anoxic reaction tank 7; Biological iron charcoal is held back pond 8; Φ 120, L1200 combined elastic filler 9; Iron filler and charcoal filler 10; DN100 sludge pipe import 11; DN50 blast main import 12; Sludge pump 13; Flexible microbial film catalytic oxidation filter tank 14; Flexible biofilm carrier 15; Disc type micro porous aeration head 16; Air blast machine room 17; Root's blower 18; Settling tank 19; Sewage submersible pump 20; The ecoscape pool 21; The high-order pool 22; The low level pool 23; Artificial floating island 24; Sewage submersible pump 25; Sludge pipe 26; Foul smell pipeline 27; Air line 28.
Embodiment
The present invention adopts A 2/ O (anaerobism, anoxic, aerobic biological denitrification dephosphorization) technology, in anaerobism, anoxic, aerobic environment, hocket, through hydrolysis, little electrolysis with biochemical reactions such as iron bacteria, anerobe, amphimicrobes, again in conjunction with physical chemistry adsorption precipitation, plant absorbing conversion process etc., organic pollutant and nitrogen, phosphor contaminant in the efficient removal waste water, and the animal-plant oil in the waste water, satisfy the processing requirement of reusing sewage landscape water body.
The waste disposal plant of reclaimed water reuse landscape water body provided by the invention mainly comprises:
Multi-functional equalizing tank, hydraulic detention time 〉=4 hour, the equalizing tank feed-water end is established the stainless steel planar grille, grid seam 30mm; Establish submersible sewage pump behind the equalizing tank, be used for the biological iron charcoal of the interior electrolysis anaerobism anoxic reaction tank water delivery to next stage.
Electrolysis anaerobe iron charcoal reaction tank and the biological iron charcoal of interior electrolysis anoxic reaction tank in the biological iron charcoal of interior electrolysis anaerobism anoxic reaction tank is divided into, all hang Φ 120, L1200 combined elastic filler in two ponds, pond inner bottom part iron filler is pressed 20-30kg/kg COD and is calculated, and the charcoal filler is pressed 30-40kg/kg COD and calculated.Establish biological iron charcoal behind the pond and hold back the pond, and establish sludge pump and will deposit dredge pump to equalizing tank and promote pumping hole, in order to send into the recycle of biological iron charcoal reaction tank.
Hang flexible biofilm carrier in the flexible microbial film contact-oxidation pool, press 1-2m 2/ m 3Arrange.The disc type micro porous aeration head is laid in the bottom, is connected with the air blast machine room by the DN100 blast main, is convenient to the water body aeration aerating.
The air blast machine room adopts the gas blower aerating system, provides pressure air source with Root's blower, the water body oxygenation in flexible microbial film contact-oxidation pool and the biological iron charcoal of the interior electrolysis anoxic reaction tank.
Establish settling tank behind the flexible microbial film contact-oxidation pool, it is 1.7 hours that hydraulic detention time is arranged in the settling tank, will wear out precipitations such as peeling off microbial film and with the sewage submersible pump precipitation is pumped to the biological iron charcoal of the powerful interior electrolysis anaerobism anoxic of processing power reaction tank and carries out digestion decrement and handle.
The high-order pool and the low level pool are divided in the attitude of delivering a child behind the settling tank view pool, the high-order pool control depth of water≤1.5m, the low level pool control depth of water≤1.2m.If the sewage submersible pump is evacuated to the high-order pool with low level pool water, high-order pool water flows into the low level pool down through being communicated with slow the falling of canal and forms the flowing water view simultaneously.In the view pool, establish artificial floating island, plant on the chinampa that views such as yellow flag, Siberian iris, typha minima grass and Canna generalis Bailey are good, strong stress resistance, the plant of improving water quality.
Sludge pipe is established in electrolysis anaerobe iron charcoal reaction tank bottom among the present invention, the sludge pump of holding back in the pond with biological iron charcoal is connected, be connected with sewage submersible pump in the settling tank in addition, reclaim with digestion decrement and handle in order to the mud at two places is pumped into the powerful interior electrolysis anaerobe iron charcoal reaction tank of processing power.
Multi-functional equalizing tank, interior electrolysis anaerobism, the biological iron charcoal of anoxic reaction tank, flexible microbial film contact-oxidation pool are connected with odor removal by pipeline with settling tank among the present invention, foul gas are concentrated purify the processing of deodorizing.Odor removal adopts HSCC type biological deodorizing filter bed, the foul gas in making up is concentrated purify the processing of deodorizing.
The ecoscape pool is nature substrate and sloping bank among the present invention, and sloping bank can be interspersed and place scape stone.Can plant water caltrop, pale reddish brown foxtail, black algae etc. under water, the wild arrowhead of the staggered band plantation in land and water, calamus etc.Put a small amount of crab Barb, crucian carp, shrimp, spiral shell, freshwater mussel in the pool in a suitable place to breed.
Water outlet after device of the present invention is handled can reach " reclaimed water reuse is in the water quality standard of landscape water body " (CJ/T952000), that is: COD Cr≤ 50mg/L, BOD 5≤ 10mg/L, SS≤10mg/L, total phosphorus≤1.0mg/L.
Below in conjunction with accompanying drawing the present invention is described in detail.
Concrete structure of the present invention sees also Fig. 1.
Sewage enters into device from water-in 1, enter into multi-functional equalizing tank 3 through grid 2 filteration, hydraulic detention time 〉=4 hour are carried out homogenizing to influent quality, the water yield and are regulated and make animals and plants wet goods pollutent hydrolytic digestion, move in order to the subsequent treatment process unit.The biological iron charcoal of electrolysis anoxic reaction tank 7 in entering again behind the electrolysis anaerobe iron charcoal reaction tank 6 in through submersible sewage pump 4 water being pumped into then, Φ 120, L1200 combined elastic filler 9 are all hung, bottom filling iron filler and charcoal filler 10 in the biological iron charcoal of interior electrolysis anaerobe iron charcoal reaction tank 6 and interior electrolysis anoxic reaction tank 7 inside.Sewage successively through 7 pairs of the biological iron charcoal of interior electrolysis anaerobe iron charcoal reaction tank 6 and interior electrolysis anoxic reaction tanks cross the water organic pollutant particularly difficult biochemical animals and plants wet goods that decomposes carry out that the efficient anaerobic anoxic is biochemical decomposes and dephosphorization denitrogenation and improve BOD 5/ COD CrRatio enters into biological iron charcoal and holds back pond 8 after the processing.
The mud that biological iron charcoal is held back in the pond 8 pumps into sludge pipe 26 by sludge pump 13, electrolysis anaerobe iron charcoal reaction tank 6 in DN100 sludge pipe import 11 is back to then, and sewage flows into flexible microbial film catalytic oxidation filter tank 14.Flexible biofilm carrier 15 is hung in 14 inside, flexible microbial film catalytic oxidation filter tank, disc type micro porous aeration head 16 aeration aeratings are laid in the bottom in flexible microbial film catalytic oxidation filter tank 14, and sewage flows into settling tank 19 through the aerobic biochemical decomposition with after passing through the nitrated ammonia nitrogen denitrogenation processing of nitration denitrification biological process in the pond.Settling tank 19 hydraulic detention time 1-2 hours, sewage flowed into the ecoscape pool 21 then.Settling tank is established sewage submersible pump 20, and precipitation is pumped into sludge pipe 26, digestion decrement processing in the electrolysis anaerobe iron charcoal reaction tank in entering at last.
The high-order pool 22 and the low level pool 23 are divided in the ecoscape pool 21, the high-order pool 22 control depth of water≤1.5m, the low level pool 23 control depth of water≤1.2m.If sewage submersible pump 25 is evacuated to the high-order pool with low level pool water, high-order pool water flows into the low level pool down through being communicated with slow the falling of canal and forms the flowing water view simultaneously.In the view pool 21, establish artificial floating island 24, plant on the chinampa that views such as yellow flag, Siberian iris, typha minima grass and Canna generalis Bailey are good, strong stress resistance, the plant of improving water quality.The ecoscape pool 21 is nature substrate and sloping bank, and sloping bank can be interspersed and place scape stone.Can plant water caltrop, pale reddish brown foxtail, black algae etc. under water, the wild arrowhead of the staggered band plantation in land and water, calamus etc.Put a small amount of crab Barb, crucian carp, shrimp, spiral shell, freshwater mussel in the pool in a suitable place to breed.The water body dissolved oxygen can be improved in the ecoscape pool 21, and the absorption conversion process of plant can be removed pollutent such as organic pollutant and nitrogen, phosphorus in the water.
This device provides pressure air source by the gas blower aerating system in the air blast machine room 17 with Root's blower 18, by air line 28 to the biological iron charcoal reaction tank 7 of the interior electrolysis anoxic in the device and flexible microbial film catalytic oxidation filter tank 14 aeration aeratings.
Multi-functional equalizing tank 3 in the device of the present invention, interior electrolysis anaerobe iron charcoal reaction tank 6, the biological iron charcoal of interior electrolysis anoxic reaction tank anoxic 7, flexible microbial film catalytic oxidation filter tank 14 are connected with odor removal 5 by foul smell pipeline 27 with settling tank 19, and odor removal 5 adopts HSCC type biological deodorizing filter bed that foul gas is concentrated and purifies the processing of deodorizing.
Biological iron charcoal is held back the mud in pond 8 and the settling tank 19, is pumped into the powerful interior electrolysis anaerobe iron charcoal reaction tank 6 of processing power by sludge pipe 26 and carries out recycle and digestion decrement processing.The outer discharge capacity of entire treatment system sludge seldom, but general half a year above pump drainage primary sludge, the pumping of available environmental sanitation mud pumping car is also directly made greening and agricultural base manure nearby.

Claims (10)

1. the waste disposal plant of a reclaimed water reuse landscape water body mainly comprises:
Multi-functional equalizing tank, its feed-water end is provided with planar grille, electrolysis anaerobe iron charcoal reaction tank in the water side connects;
The inside of the biological iron charcoal of the inside of interior electrolysis anaerobe iron charcoal reaction tank and interior electrolysis anoxic reaction tank all is hung with the combined elastic filler, and the pond inner bottom part all is placed with iron filler and charcoal filler; The biological iron charcoal of electrolysis anoxic reaction tank in interior electrolysis anaerobe iron charcoal reaction tank water side connects, the inner gas blower that connects of the biological iron charcoal of interior electrolysis anoxic reaction tank carries out the water body oxygenation;
The biological iron charcoal of interior electrolysis anoxic reaction tank water side connects biological iron charcoal and holds back the pond, biological iron charcoal hold back the bottom, pond be connected to by sludge pipe in the bottom of electrolysis anaerobe iron charcoal reaction tank, biological iron charcoal is held back the water side, pond and is connected flexible microbial film catalytic oxidation filter tank;
Flexible biofilm carrier is hung in the inside in flexible microbial film catalytic oxidation filter tank, and flexible microbial film catalytic oxidation filter tank inner bottom part is equipped with aeration head, and aeration head is connected to gas blower, to the water body oxygenation in flexible microbial film catalytic oxidation filter tank; Water side, flexible microbial film catalytic oxidation filter tank connects settling tank, the bottom of electrolysis anaerobe iron charcoal reaction tank in settling tank is connected to by sludge pipe;
Settling tank connects the ecoscape pool;
Multi-functional equalizing tank, interior electrolysis anaerobe iron charcoal reaction tank, the biological iron charcoal of interior electrolysis anoxic reaction tank, flexible microbial film catalytic oxidation filter tank all are connected odor removal with settling tank.
2. waste disposal plant according to claim 1, wherein, electrolysis anaerobe iron charcoal reaction tank in multi-functional equalizing tank water side connects by submersible sewage pump.
3. waste disposal plant according to claim 1, wherein, the combined elastic filler of hanging in the biological iron charcoal of the interior and interior electrolysis anoxic of the interior electrolysis anaerobe iron charcoal reaction tank reaction tank is Φ 120, L1200 combined elastic filler, iron filler is pressed 20-30kg/kg COD and is calculated, and the charcoal filler is pressed 30-40kg/kg COD and calculated.
4. waste disposal plant according to claim 1, wherein, the flexible biofilm carrier of inside, flexible microbial film catalytic oxidation filter tank is pressed 1-2m 2/ m 3Hang.
5. according to claim 1 or 4 described waste disposal plants, wherein, what flexible microbial film catalytic oxidation filter tank inner bottom part was laid is the disc type micro porous aeration head, and the disc type micro porous aeration head all is connected with gas blower by the DN100 blast main with the biological iron charcoal of interior electrolysis anoxic reaction tank inside.
6. waste disposal plant according to claim 1, wherein, the ecoscape pool is divided into the high-order pool and the low level pool, and the depth of water on the high-order pool is higher than the depth of water on the low level pool; On the low level pool submersible pump is set, by submersible pump the water on the low level pool is evacuated to the high-order pool, slow the falling of water in the high-order pool and flow into the low level pool down simultaneously, thereby formation flowing water view; In the view pool, establish artificial floating island, plant on the chinampa and be implanted with that view is good, strong stress resistance, the plant that can improve water quality.
7. waste disposal plant according to claim 1, wherein, odor removal is HSCC type biological deodorizing filter bed.
8. the method for utilizing the described waste disposal plant of claim 1 to carry out sewage disposal, its main process is:
Sewage enters into multi-functional equalizing tank through grid filtration, water quality, the water yield of sewage are carried out the homogenizing adjusting and made vegetable and animals oils pollute the thing hydrolytic digestion, and the biological iron charcoal of electrolysis anaerobe iron charcoal reaction tank and interior electrolysis anoxic reaction tank carries out anaerobism and the biochemical decomposition of anoxic and dephosphorization denitrogenation and improves BOD organic pollutant in entering then 5/ COD CrRatio enters biological iron charcoal then and holds back in the pond;
Biological iron charcoal holds back that mud in the pond carries out recycle in the electrolysis anaerobe iron charcoal reaction tank in being back to and digestion decrement is handled, sewage flows into flexible microbial film catalytic oxidation filter tank, precipitate through the aerobic biochemical decomposition with by flowing into settling tank after the nitrated ammonia nitrogen denitrogenation processing of nitration denitrification biological process, the clear water of post precipitation flows into the ecoscape pool, carries out recycle and digestion decrement processing in precipitation enters in the electrolysis anaerobe iron charcoal reaction tank;
In the ecoscape pool low level pool water is evacuated to the high-order pool, high-order pool water flows into the low level pool down through being communicated with slow the falling of canal and forms the flowing water view simultaneously;
Ecoscape is established artificial floating island in the pool, plants on the artificial floating island and is implanted with that view is good, strong stress resistance, the plant that can improve water quality, and ecoscape has been put organism in water in a suitable place to breed in the pool; By the ecoscape pool improving the water body dissolved oxygen, and by the absorption conversion process of plant to remove organic pollutant and nitrogen in the water, phosphor contaminant.
9. method according to claim 8, wherein, the ecoscape pool is natural substrate and sloping bank under water, and natural substrate kind is implanted with one or more of water caltrop, pale reddish brown foxtail, black algae under water, and the staggered band in land and water kind is implanted with wild arrowhead and calamus.
10. method according to claim 8, wherein, the plant of planting on the artificial floating island is one or more in yellow flag, Siberian iris, typha minima grass and the Canna generalis Bailey.
CN201310205678.9A 2013-05-28 2013-05-28 Sewage treatment method and device for reusing reclaimed water as landscape water Active CN103241906B (en)

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CN107215982A (en) * 2017-06-20 2017-09-29 尹泽邦 The apparatus and method that a kind of multi-effect adsorption handles landscape waste water

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