CN101538088B - Construction method of ecological sewage treatment and water restoration system - Google Patents

Construction method of ecological sewage treatment and water restoration system Download PDF

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Publication number
CN101538088B
CN101538088B CN2008101246126A CN200810124612A CN101538088B CN 101538088 B CN101538088 B CN 101538088B CN 2008101246126 A CN2008101246126 A CN 2008101246126A CN 200810124612 A CN200810124612 A CN 200810124612A CN 101538088 B CN101538088 B CN 101538088B
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China
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water
ecological
seepage flow
sewage treatment
grass
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CN2008101246126A
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Chinese (zh)
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CN101538088A (en
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梅凯
张小春
郝新浦
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南京工业大学
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention discloses a construction method of an ecological sewage treatment and water restoration system. The system can be used for the miniature domestic sewage treatment, the aquatic environment rehabilitation of medium and small sized lakes and the landscaping water management and rehabilitation engineering, can achieve the target of building the self-regeneration and self-succession water ecological system and finally building the self-regeneration and self-succession water ecological system, and can build the landscape type sewage treatment plant. The method comprises the following steps: A. building a rainwater conflux and percolation water charging system; B. building an ET biochemical system; and C. gradually building an ecological balanced system of the aquatic animal food chain according to the relationship between the ecological chains of grass-fish, alga-fish, alga-debris-snail and debris-microorganism on the basis of finishing building the ET biochemical system.

Description

The construction process of a kind of ecological sewage treatment and water restoration system
Technical field
The present invention relates to a kind of construction process of Sewage treatment systems, more specifically to the construction process of a kind of ecological sewage treatment and water restoration system.This technology is used for the water surrounding reparation and the landscape water in small-sized sanitary sewage disposal and medium and small lake and administers cosmetic treatment, but the final target that realizes the water ecosystem of structure self-regeneration, self-succession.
Background technology
China is one of the poorest country of water resources, and along with rapid economy development in recent years, water resource pollution is serious day by day, has further reduced the availability of water body, makes China become one of country of water resources critical shortage.The critical shortage of water resources presses for the suitable sewage recycling technology of exploitation and alleviates this contradiction.Compare with the sewage treatment process of routine, it is cheap that the way that ecological management pollutes has processing cost, and treatment effect is obvious, and meets the characteristics of Sustainable development.But, when common single ecological treatment method is applied in the concrete engineering, exist fluctuation of service, maintenance management inconvenience, the effect of disposing of sewage can't stablize, sustainable variety of problems such as keep, present technique has overcome these defectives, combine multiple ecological management technology is organically integrated, be different from other similar technology, combine together with water landscape, the structures of system also are the main bodys of ecoscape simultaneously, and these cryptomorphic are handled structures and combined together with natural landscape.Present technique applies in the actual engineering, makes every effort to reach and suits measures to local conditions, and have stronger operability and more excellent complex art economic target.
Summary of the invention
The objective of the invention is to solve the deficiencies in the prior art and problem, the construction process of a kind of ecological sewage treatment and water restoration system is provided, this system can be used for the water surrounding reparation and the landscape water in small-sized sanitary sewage disposal and medium and small lake and administers cosmetic treatment, but can realize making up the target of the water ecosystem of self-regeneration, succession, but the final water ecosystem that makes up self-regeneration, self-succession, the sewage work that builds landscape type.
Technical scheme of the present invention is as follows:
The construction process of ecological sewage treatment of the present invention and water restoration system may further comprise the steps:
A, the conflux structure of diafiltration water charging system of rainwater: the place on 5~10 meters on distance water water front is provided with the view infitration galleries, utilize the road absolute altitude on vertical, to build low-lying in conjunction with actual physical features situation in zone, the peripheral open lawn of view infitration galleries, high-order seepage flow grass sea is set respectively, seepage flow grass ditch, low level seepage flow grass sea and infiltration irrigation canals and ditches, in low level seepage flow grass sea, seepage flow grass ditch and high-order seepage flow grass Haiti face are put the slope, aspect is along the view infitration galleries of water bank, view infitration galleries face is respectively the gravel of 40~70mm thickness cobble and 30~40mm thickness from top to bottom, the gravel middle part is provided with rainwater collection tube-perforated pipe, and 45 degree respectively had the aperture that catchments that the aperture is 20mm about perforated pipe was downward;
B, ET biochemical system make up: the ET biochemical system mainly comprises ecological floating island, circulation running water system and outer circulation wet land treating system, wherein said ecological floating island is arranged in the middle of the ET ecological pool with annular, along the soft divider wall of annular ecological floating island below setting at the bottom of ecological pool, it is 40%~60% of ET ecological pool that ecological floating island encloses grade area, the pool, the bottom of a pan structure is adopted on corresponding annular chinampa down, the pool, the bottom of a pan is provided with anti-leakage pad as impervious barrier, and sewage is entered by tangential direction in the middle of the pool; Described circulation running water system be under ecological floating island, install and use diving circulation aerator make current in circulation movement in water oxygenic aeration, the heavy-oxygen-enriched water of circulation movement adds to water body weight and pollutes dead angle area, realize the materialization and the biochemical action of displacement, dilution, treated water outlet later enters outer circulation circulation wet land system and carries out deep purifying; Described outer circulation circulation wet land system is that Repulse Bay wetland transition band is arranged on the water (flow) direction of ET ecological pool, is made up of 1~10 combined ecological pond of not waiting, and to be every cubic metre of hydromining carry out plug-flow with the power of 3~10W to force of circulation;
C, make up on the basis finish at the ET biochemical system, relation according to grass-fish, algae-fish, careless algae-chip-spiral shell and chip-microbial ecological chain, progressively make up the ecological balanced system of hydrocoles food chain, press the Various Seasonal and the growth phase of ecological balanced system, various respectively feeding habits include the fish of phytophage fish, carnivorous fish and filter-feeding fish, draw to grow and include spiral shell, freshwater mussel and aquatic insect bottom-dwelling, draw and grow functional flora, form food chain or food web, be built into ecological sewage treatment and water restoration system.
The construction process of ecological sewage treatment of the present invention and water restoration system, its further technical scheme is that described high-order seepage flow grass sea, the careless ditch of seepage flow, low level seepage flow grass sea and the width that permeates irrigation canals and ditches are respectively 0.2~0.4m, highly are 0.3~0.5m, wherein low level seepage flow grass sea is than the low 0.10~0.35m of peripheral path, and the gradient that low level seepage flow grass sea, the careless ditch of seepage flow and high-order seepage flow grass Haiti face are put the slope is 3:1~10:1; Further technical scheme is that per 20~30m is provided with an end of a year or month inspection chamber in the described seepage flow grass ditch again, and establishes a mesh grille in the downstream tube ingress.
The construction process of ecological sewage treatment of the present invention and water restoration system, its further technical scheme can also be when the structure rainwater confluxes the diafiltration water charging system, after hard ground and segment path rainwater adopt traditional rainwater pipe well system to compile, be sent to seepage flow grass ditch, low level seepage flow grass sea and view infitration galleries, soft gardens ground rainwater is shunted nature on the spot and is entered seepage flow grass ditch, high-order seepage flow grass sea, low level seepage flow grass sea and view infitration galleries, be in the shallow water state in short period of time behind the heavy rain, seepage flow was gone into water body after the pollution of early-stage rainwater was absorbed and filters, and went into water body above the later stage stormwater overflow of percolation ability and carried out ET biochemistry.
The annular width that the construction process of ecological sewage treatment of the present invention and water restoration system, its further technical scheme can also be arranged on the middle ecological floating island of ET ecological pool is 0.7~1.8m.
The construction process of ecological sewage treatment of the present invention and water restoration system, its further technical scheme can also be domatic thicket district, emergent district, secondary revetment, floating plant district, submerged plant district and the ecological floating island district of being provided with successively from top to bottom of described ET ecological pool, the overall control of plant growing density is 35%~65% of the ET ecological pool total area, the plant spacing in the rows is pressed the kind of plant at 0.25~0.55m, can match the kind of the plant at different florescences in season according to the needs of view.
The construction process of ecological sewage treatment of the present invention and water restoration system, its further technical scheme can also be that described combined ecological pond is successively by the cross flow dam, the emergent district, the water conservancy diversion ridge, the submerged plant district, the water conservancy diversion ridge, floatingleaved plant district and cross flow dam are formed, the water bank in combined ecological pond, put the slope according to 5:1~10:1, emergent is grown in the waters of 0.40~0.90m, Repulse Bay wetland transition band reduces side slope, make water body form the shape of shoal wetland, the raised growth that helps waterplant, between shoal and deep water, put the slope according to 5:1~1:1 for zone of transition, the depth of water is controlled at 1.00~1.60m, plant planting submerged plant, ballow plantation floating plant, its amount is controlled at below 1/3rd of the water surface.The well developed root system of emergent has very strong removal ability for pollution substance.The heavily contaminated regional water enters plug-flow shallow water wetland through behind the ecological floating island, and the Repulse Bay band of flowing through is finished the outer circulation running water purification process of heavily contaminated water.Purification step by step through the hundreds of meters huge biomasss of plug-flow wetland, the eutrophication factors such as sewage N, the P in heavily contaminated district, organism can be effectively controlled, can be not again the ecosystem of species diversity do not polluted and coerce, the sewage in heavily contaminated district is transformed into cleaning moisturizing water source.
Compared with prior art the present invention has following beneficial effect:
But self-regeneration, the ecological sewage treatment of succession and the characteristics that water restoration system has reliability, validity, persistence (self-succession) that method of the present invention makes up; Invest for a short time simultaneously, running cost is low, simple and convenient management.Water after the processing reaches three indexs: 1, water body visibility meter remains on 0.8~1.5m throughout the year; 2, the main water-quality guideline of water body reaches four class water body standards in the recent period, and (after 3-5 years) at a specified future date reach three class water body standards; 3, water ecosystem has diversity of organism, persistence, and system enters self-regeneration, succession benign cycle, present the four seasons evergreen, three seasons colored view was arranged.
The meadow that occurring in nature just rises and falls, rainwater there is good diafiltration collecting action, simulate this spontaneous phenomenon, the open lawn around water body utilizes pedaline sea, careless ditch to implement in an organized way to collect rainwater, put the slope on ground, the infitration galleries of aspect water bank improves the rainwater infiltration amount, and the transudation by meadow and soil, realize the pre-treatment cleaning action of rainwater, as the moisturizing water source of water body.Can keep TP, TN at lower level by the make up water that rainwater compiles, diafiltration, pretreatment system are collected, in addition ET is biochemical by downward bed mud deposition again, and the migration of plant and animal is fallen progressively year by year, obtains more ecological, limpid, good water quality.Adopt the mode of " getting close to nature ecosystem revivification " to carry out rainwater utilization, recover to combine, set up the rainwater utilization system of ecology with wet land protection such as the lake, river in natural depression, park and wetland.So both reduce the processing cost of rainwater, improved the water surrounding in city again, had the view benefit simultaneously concurrently.Rainwater is collected with reuse and has been responded the call that country saves water and energy, and can be to carry out the measure of increasing income and decreasing expenditure and contribute.The present invention adopts diving to make stream aeration biochemical handler and substitutes methods such as perforated pipe aerating regulation, jet-flow aeration, drop water aeration, can reduce cost significantly and save working cost such as power consumption.
Description of drawings
Fig. 1 is the rainwater of the embodiment of the invention diafiltration water charging system structural representation that confluxes
Fig. 2 is the ET biochemical system structural representation of the embodiment of the invention
Fig. 3 is the ecological floating island-soft partition wall combination synoptic diagram of the embodiment of the invention
Fig. 4 is an ET ecological pool structural profile synoptic diagram
Fig. 5 is a view infitration galleries structural profile synoptic diagram
Fig. 6 is a seepage flow grass groove structure synoptic diagram
Embodiment
Embodiment 1
Shown in Fig. 1,2,3,4,5 and 6, the ecological sewage treatment of present embodiment and the construction process of water restoration system may further comprise the steps:
The conflux structure of diafiltration water charging system of A, rainwater: the place on 8 meters on distance water water front is provided with the view infitration galleries, utilize the road absolute altitude on vertical, to build low-lying in conjunction with actual physical features situation in zone, the peripheral open lawn of view infitration galleries, high-order seepage flow grass sea, the careless ditch of seepage flow, low level seepage flow grass sea and infiltration irrigation canals and ditches are set respectively, the width of described high-order seepage flow grass sea, the careless ditch of seepage flow, low level seepage flow grass sea and infiltration irrigation canals and ditches is respectively 0.3m, highly is 0.4m that wherein low level seepage flow grass sea is than the low 0.25m of peripheral path; In low level seepage flow grass sea, the careless ditch of seepage flow and high-order seepage flow grass Haiti face put the slope, the gradient is 6:1, aspect is along the view infitration galleries of water bank, view infitration galleries face is respectively the gravel of 60mm thickness cobble and 350mm thickness from top to bottom, the gravel middle part is provided with rainwater collection tube-perforated pipe, 45 degree respectively had the aperture that the aperture is 20mm about perforated pipe was downward, and every 25m is provided with an end of a year or month inspection chamber in the seepage flow grass ditch, and established a mesh grille in the downstream tube ingress; Soft gardens ground rainwater is shunted nature on the spot and is entered seepage flow grass ditch, high-order seepage flow grass sea, low level seepage flow grass sea and view infitration galleries, be in the shallow water state in short period of time behind the heavy rain, seepage flow was gone into water body after the pollution of early-stage rainwater was absorbed and filters, and went into water body above the later stage stormwater overflow of percolation ability and carried out ET biochemistry;
B, ET biochemical system make up: the ET biochemical system mainly comprises ecological floating island, circulation running water system and outer circulation wet land treating system, wherein said ecological floating island is arranged in the middle of the ET ecological pool with annular, the annular width of ecological floating island is 1.2m, the soft divider wall that is provided with at the bottom of ecological pool along annular ecological floating island below is a non-woven fabrics, it is 55% of ET ecological pool that ecological floating island encloses grade area, corresponding annular chinampa filter bed is divided into the pool, the bottom of a pan structure, the pool, the bottom of a pan is provided with anti-leakage pad, and sewage is entered by tangential direction in the middle of the pool; Domatic thicket district, emergent district, secondary revetment, floating plant district, submerged plant district and the ecological floating island district of being provided with successively from top to bottom of described ET ecological pool, the overall control of plant growing density is 50% of the ET ecological pool total area, the plant spacing in the rows is pressed the kind of plant at 0.35m, can match the kind of the plant at different florescences in season according to the needs of view; Described circulation running water system be under ecological floating island, install and use diving circulation aerator make current in circulation movement in water oxygenic aeration, the heavy-oxygen-enriched water of circulation movement adds to water body weight and pollutes dead angle area, realize displacement, dilution and materialization and biochemical action, treated water outlet later enters outer circulation circulation wet land system and carries out deep purifying; Described outer circulation circulation wet land system is that Repulse Bay wetland transition band is arranged on the water (flow) direction of ET ecological pool, is made up of 1 combined ecological pond, and to be every cubic metre of hydromining carry out plug-flow with the power of 3-10W to force of circulation; The combined ecological pond is made up of cross flow dam, emergent district, the water conservancy diversion ridge, submerged plant district, the water conservancy diversion ridge, floatingleaved plant district and cross flow dam successively, the water bank in combined ecological pond, put the slope according to 8:1, emergent is grown in the waters of 0.70m, Repulse Bay wetland transition band reduces side slope, make water body form the shape of shoal wetland, the raised growth that helps waterplant, between shoal and deep water, put the slope according to 2:1 for zone of transition, the depth of water is controlled at 1.4m, plant planting submerged plant, ballow plantation floating plant, its amount is controlled at below 1/3rd of the water surface.
C, make up on the basis finish at the ET biochemical system, relation according to grass-fish, algae-fish, careless algae-chip-spiral shell and chip-microbial ecological chain, progressively make up the ecological balanced system of hydrocoles food chain, press the Various Seasonal and the growth phase of ecological balanced system, various respectively feeding habits include the fish of phytophage fish, carnivorous fish and filter-feeding fish, draw to grow and include spiral shell, freshwater mussel and aquatic insect bottom-dwelling, draw and grow functional flora, form food chain or food web, be built into ecological sewage treatment and water restoration system.

Claims (7)

1. the construction process of ecological sewage treatment and water restoration system is characterized in that may further comprise the steps:
A, the conflux structure of diafiltration water charging system of rainwater: the place on 5~10 meters on distance water water front is provided with the view infitration galleries, utilize the road absolute altitude on vertical, to build low-lying in conjunction with actual physical features situation in zone, the peripheral open lawn of view infitration galleries, high-order seepage flow grass sea is set respectively, seepage flow grass ditch, low level seepage flow grass sea and infiltration irrigation canals and ditches, in low level seepage flow grass sea, seepage flow grass ditch and high-order seepage flow grass Haiti face are put the slope, aspect is along the view infitration galleries of water bank, view infitration galleries face is respectively the gravel of 40~70mm thickness cobble and 30~40mm thickness from top to bottom, the gravel middle part is provided with rainwater collection tube-perforated pipe, and 45 degree respectively had the aperture that catchments that the aperture is 20mm about perforated pipe was downward;
B, ET biochemical system make up: the ET biochemical system mainly comprises ecological floating island, circulation running water system and outer circulation wet land treating system, wherein said ecological floating island is arranged in the middle of the ET ecological pool with annular, along the soft divider wall of annular ecological floating island below setting at the bottom of ecological pool, it is 40%~60% of ET ecological pool that ecological floating island encloses grade area, the pool, the bottom of a pan structure is adopted on corresponding annular chinampa down, the pool, the bottom of a pan is provided with anti-leakage pad as impervious barrier, and sewage is entered by tangential direction in the middle of the pool; Described circulation running water system be under ecological floating island, install and use diving circulation aerator make current in circulation movement in water oxygenic aeration, the heavy-oxygen-enriched water of circulation movement adds to water body weight and pollutes dead angle area, realize the materialization and the biochemical action of displacement, dilution, treated water outlet later enters outer circulation circulation wet land system and carries out deep purifying; Described outer circulation circulation wet land system is that Repulse Bay wetland transition band is arranged on the water (flow) direction of ET ecological pool, is made up of 1~10 combined ecological pond of not waiting, and to be every cubic metre of hydromining carry out plug-flow with the power of 3~10W to force of circulation;
C, make up on the basis finish at the ET biochemical system, relation according to grass-fish, algae-fish, careless algae-chip-spiral shell and chip-microbial ecological chain, progressively make up the ecological balanced system of hydrocoles food chain, press the Various Seasonal and the growth phase of ecological balanced system, various feeding fishes include phytophage fish, carnivorous fish and filter-feeding fish, draw to grow and include spiral shell, freshwater mussel and aquatic insect bottom-dwelling, draw and grow functional flora, form food chain or food web, be built into ecological sewage treatment and water restoration system.
2. the construction process of ecological sewage treatment according to claim 1 and water restoration system, the width that it is characterized in that described high-order seepage flow grass sea, the careless ditch of seepage flow, low level seepage flow grass sea and permeate irrigation canals and ditches is 0.2~0.4m, highly is 0.3~0.5m, wherein low level seepage flow grass sea is than the low 0.10~0.35m of peripheral path, and the gradient that low level seepage flow grass sea, the careless ditch of seepage flow and high-order seepage flow grass Haiti face are put the slope is 3: 1~10: 1.
3. the construction process of ecological sewage treatment according to claim 2 and water restoration system is characterized in that per 20~30m is provided with an end of a year or month inspection chamber in the described seepage flow grass ditch, and establishes a mesh grille in the downstream tube ingress.
4. the construction process of ecological sewage treatment according to claim 1 and water restoration system, when it is characterized in that making up rainwater and confluxing the diafiltration water charging system, after hard ground and segment path rainwater adopt traditional rainwater pipe well system to compile, be sent to seepage flow grass ditch, low level seepage flow grass sea and view infitration galleries, soft gardens ground rainwater is shunted nature on the spot and is entered seepage flow grass ditch, high-order seepage flow grass sea, low level seepage flow grass sea and view infitration galleries, be in the shallow water state in short period of time behind the heavy rain, seepage flow was gone into water body after the pollution of early-stage rainwater was absorbed and filters, and went into water body above the later stage stormwater overflow of percolation ability and carried out ET biochemistry.
5. the construction process of ecological sewage treatment according to claim 1 and water restoration system is characterized in that being arranged on that the annular width of ecological floating island is 0.7~1.8m in the middle of the ET ecological pool.
6. the construction process of ecological sewage treatment according to claim 1 and water restoration system, domatic thicket district, emergent district, secondary revetment, floating plant district, submerged plant district and the ecological floating island district of being provided with successively from top to bottom that it is characterized in that described ET ecological pool, the overall control of plant growing density is 35%~65% of the ET ecological pool total area, the plant spacing in the rows is pressed the kind of plant at 0.25~0.55m, according to the needs of view, match the kind of the plant at different florescences in season.
7. the construction process of ecological sewage treatment according to claim 1 and water restoration system, it is characterized in that described combined ecological pond is successively by the first cross flow dam, the emergent district, the first water conservancy diversion ridge, the submerged plant district, the second water conservancy diversion ridge, the floatingleaved plant district and the second cross flow dam are formed, the water bank in combined ecological pond, according to putting the slope in 5: 1~10: 1, emergent is grown in the waters of 0.40~0.90m, Repulse Bay wetland transition band reduces side slope, make water body form the shape of shoal wetland, the raised growth that helps waterplant, between shoal and deep water for zone of transition according to putting the slope in 5: 1~1: 1, the depth of water is controlled at 1.00~1.60m, plant planting submerged plant, ballow plantation floating plant, its amount is controlled at below 1/3rd of the water surface.
CN2008101246126A 2008-08-27 2008-08-27 Construction method of ecological sewage treatment and water restoration system CN101538088B (en)

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