One kind improving in-situ treatment method for quality of water environment
Technical field
The present invention relates to the valley harnessing fields of water process, more particularly to a kind of quality of water environment that is used for improve in-situ treatment
Method.
Background technique
On April 16th, 2015, State Council formally promulgate " water prevention and cure of pollution action plan ", i.e., " ten, water ", wherein having specially
Regulations of the door for regulation city black and odorous water, it is desirable that municipality directly under the Central Government, provincial capital, cities specifically designated in the state plan built-up areas will be in the end of the year 2017
Before substantially eliminate black and odorous water, realize river surface without large area floating material, riverbank is without rubbish, without illegal sewage draining exit;In the year two thousand twenty bottom
Preceding completion black and odorous water management goal.In September, 2015 is taken the lead by house town and country construction portion, can same Environmental Protection Department, Ministry of Water Resources,
The ministries and commissions such as the Ministry of Agriculture have worked out " city black and odorous water renovation guide ", and content includes the investigation and knowledge of city black and odorous water
Not, the formulation Yu implementation of renovation scheme, the assessment of renovating effect and examination, the foundation of permanent mechanism and policy safeguard etc..2016
On November 17, in, general office of National Development and Reform Commission and house town and country construction general office of portion joint publication " " 13 " whole nation city
Town sewage treatment and regeneration Facilities Construction planning (exposure draft) " it is put forward for the first time black and odorous water control as " 13
The main target of five " planning, it is desirable that before to the year two thousand twenty bottom, ground level and the control of the above completed region of the city black and odorous water ratio are 10%
Within.Using the environment reversed transmission of the pressure for easing monetary condition, by regional environment ethical policy, each government all in the requirement of active response national policy, is opened
Open up the comprehensive improvement of water environment.
By largely investigating discovery, the generally existing black smelly phenomenon of a considerable amount of water bodys in China, villages and small towns water environment is extremely
Badly.Shown in " China Environmental State Bulletin in 2015 " promulgated according to Chinese environmental protection portion, the bad V class water body of national surface water in 2015
Account for 9.7%;Various regions investigation confirms nearly 2000 city black and odorous waters, especially city inland river, inland lake waters, and pollutional load is more
It is serious.Therefore, the improvement of basin water environment is extremely urgent, and a big trend in environmentally friendly direction from now on.Currently, with
National policy tilts in terms of black and odorous water and basin water environment, and more units or association administer in basin water environment
Aspect further investigation, but river harnessing ideas is substantially " dirt+Water Ecological Recovery is cut in control source ", but controls source section dirt and be related in basin
Multiple point sources, pollution of area source, amount is more, wide, cost is big, and energy consumption is high.
Summary of the invention
Based on the problems of prior art, the object of the present invention is to provide one kind to improve original position for quality of water environment
Processing method does not need a large amount of control source and cuts dirt, carry out river water body purification by biochemical mode in water course in situ, has maintenance
It is convenient for management, without land occupation, the advantages such as low energy consumption.
The purpose of the present invention is what is be achieved through the following technical solutions:
The embodiment of the present invention also provides a kind of for quality of water environment improvement in-situ treatment method, comprising the following steps:
Step 1, aerating system and imitative water plant filler are laid:
The aeration tube of aerating system is laid in administered bottom of river channel;
And imitative water plant filler is laid in administered bottom of river channel;
Step 2, debugging culture microflora:
To the aeration tube and imitative water plant filler progress commissioning test of the aerating system that the step 1 has been laid, by described
It is 0.5~2mg/L that the aeration tube that step 1 is laid, which carries out DO in micro-pore aeration control water body, makes imitative water plant filler as microorganism
Carrier growth microorganism formed biochemical reaction microflora;
Step 3, it continues to run microflora to administered river water body and reaches V class water body:
It after the microflora culture of the step 2 is mature, continues to run 1~3 month, until the water in administered river
Body COD degradation is to 40mg/L hereinafter, NH3- N degrades to 2mg/L hereinafter, DO reaches 2mg/L or more, and water body integrated environment quality reaches
To V class water body standard;
Step 4, aquatic ecosystem is constructed:
After the water body in administered river reaches V class water body after step 3 processing, the perfect water of building health in the river
The ecosystem, the aquatic ecosystem include: submerged vegetation system, very water floatingleaved vegetation system and aquatic animal system;
Step 5, it continues to run aquatic ecosystem to administered river water body and reaches IV class water body:
After the completion of the building of the aquatic ecosystem of the step 4, continues to run 3~5 months, enriched by natural aeration micro-
Biological flora, performance aquatic ecosystem self-purification capacity, the river aquatic ecosystem make water body gradually recover one's health, stablize, balancing,
COD degradation is to 30mg/L hereinafter, NH3- N degrades to 1.5mg/L hereinafter, DO reaches 3mg/L or more, and water body is finally reached IV class water
Body standard completes the in-situ treatment method.
In-situ treatment method of the invention has the following beneficial effects: compared with existing basin water environment Treatment process
(1) river water body is purified using in-situ treatment, no land occupation, energy consumption and control source cut that dirty to build sewage treatment facility suitable
Or it is lower.
(2) water bottom is aerated, and sediment in-situ consumption is conducive to substrate improvement, is greatly reduced dredging investment or is kept away
Dredging is exempted from.
(3) power-equipment of aerating system can only set a Fans, and low energy consumption, and maintenance management is simple.
(4) microbial flora is enriched by natural aeration, water treatment effect is good.
(5) aquatic ecosystem is constructed, water body self-purification ability is given full play to, prevents and treats water eutrophication.
(6) automatic operating facilitates management, it can be achieved that unattended.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is in-situ treatment method flow chart provided in an embodiment of the present invention.
Specific embodiment
Below with reference to particular content of the invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts,
Belong to protection scope of the present invention.
As shown in Figure 1, the embodiment of the present invention, which provides one kind, improves in-situ treatment method for quality of water environment, including following
Step:
Step 1, aerating system and imitative water plant filler are laid:
The aeration tube of aerating system is laid in administered bottom of river channel;
And imitative water plant filler is laid in administered bottom of river channel;
Above-mentioned steps 1 specifically:
Aeration tube is laid in bottom of river channel, the laying mode of aeration tube, which can be, is laid with aeration tube, root along river direction
It is differed according to river width aeration tube interval 2-5m.The mode being laterally laid with can also be used, 5-10m can be spaced not according to the long aeration tube in river
Deng.Aerator uses air blower, and commercial power can be used in electricity consumption and solar energy combines, and saves energy consumption.Pass through the exposure of laying
Device of air and aeration tube are oxygenated into river, in water body microorganism and animals and plants nutrient is provided.
Meanwhile imitative water plant filler is laid in bottom of river channel, lateral separation 0.5-1m is laid, and imitates water plant filler spacing 0.5-
1m, height are also 0.5-1m.Filler spacing and height lay it is equal, can effectively prevent between filler mutually winding etc. influence.It is imitative
Water plant biologic packing material superior performance, imitates water plant form Design, and the specific surface area of plant imitating biological filler is up to 6000m2/m3, installation
Fixed form is simple, only bottom end is needed to fix, and can float in water body with water flow, fast, the well-developed spy of biomembrane with biofilm
Property, biofilm speed and performance are far more than elastic filler and combined stuffing.
Step 2, debugging culture microflora:
To the aeration tube and imitative water plant filler progress commissioning test of the aerating system that step 1 has been laid, laid by step 1
Aeration tube to carry out DO in micro-pore aeration control water body be 0.5~2mg/L, make imitative water plant filler as microorganism carrier growth
The microflora of microorganism formation biochemical reaction;
The step 2 of the above method specifically:
After having laid aerator and imitative water plant filler, commissioning test is carried out, is during which controlled in water body by micro-pore aeration
DO is in 0.5-2mg/L.Intermittent aeration mode can be used in aeration, achievees the effect that intensified denitrification and dephosphorization while reducing energy consumption,
It creates aerobic, anoxic, anaerobic environment repeatedly by intermittent aeration, is conducive to cultivate the multi-functional microbial population of multiple types.
Imitative water plant filler makes water body itself form a big biochemical reaction system as microorganism carrier, carries out organic pollutant
Degradation, while having the function that denitrogenation dephosphorizing.Intermittent aeration and solar energy is made full use of, energy can be greatlyd save
Consumption.After commissioning test 10-15d, a large amount of microorganism can be grown on filler, and polluter in water body of degrading, COD and NH3-N
Degradation rate reaches 70%, and microflora culture is mature.
Step 3, it continues to run microflora to administered river water body and reaches V class water body:
It after the microflora culture of step 2 is mature, continues to run 1~3 month, until the water body in administered river
COD degradation is to 40mg/L hereinafter, NH3- N degrades to 2mg/L hereinafter, DO reaches 2mg/L or more, and water body integrated environment quality reaches
V class water body standard;
Step 4, aquatic ecosystem is constructed:
After the water body in administered river reaches V class water body after step 3 processing, the perfect Ecology of building health in river
System, aquatic ecosystem include: submerged vegetation system, very water floatingleaved vegetation system and aquatic animal system.The water of above-mentioned building
In the ecosystem, submerged vegetation system includes that hydrilla verticillata, eel grass, watermifoil, one in fennelleaf pondweed herb are arranged in river
Kind is several;Very water floatingleaved vegetation system, which is included in river, plants one of lotus, wild rice stem, raupo, cattail, umbrella grass or several
Kind;Aquatic animal system be included in river cultivate snakehead, mandarin fish, silver carp, bighead, radish spiral shell, Bellamya sp, one of freshwater mussel
Or it is several.
Step 5, it continues to run aquatic ecosystem to administered river water body and reaches IV class water body:
After the completion of the building of the aquatic ecosystem of step 4, continues to run 3~5 months, microorganism is enriched by natural aeration
Flora plays aquatic ecosystem self-purification capacity, the river aquatic ecosystem make water body gradually recover one's health, stablize, balancing, COD
Degradation is to 30mg/L hereinafter, NH3- N degrades to 1.5mg/L hereinafter, DO reaches 3mg/L or more, and water body is finally reached IV class water body
Standard completes the in-situ treatment method.
Above method step 5 specifically:
After the completion of aquatic ecosystem building, continues to run 3-5 months, microbial flora is enriched by natural aeration, sufficiently
Its self-purification capacity is played, the river aquatic ecosystem that water body gradually recovers one's health, stablizes, balancing, water quality is good, and COD degradation is extremely
30mg/L is hereinafter, NH3- N degrades to 1.5mg/L hereinafter, DO, which reaches 3mg/L or more, is finally reached IV class water body standard.
The in-situ treatment method that quality of water environment of the invention improves does not need a large amount of control source and cuts dirt, but will pollution
The water body biochemical reactor big as one, by laying aerator and imitative water plant filler in bottom of river channel to strengthen river
A kind of in-situ treatment system of road water body purification effect, have maintenance management it is convenient, without land occupation, the advantages such as low energy consumption.
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Embodiment
Handled water body is closing water body, area 2000m2, water quality is as follows: pH=6-9, DO=1-2mg/L, and water temperature=
8-25 DEG C, COD=60-120mg/L, NH3- N=6-10mg/L.
By in-situ treatment method of the invention, specific processing is as follows:
(1) aerator and imitative water plant filler are laid:
Aeration tube is laid in water bottom, according to water body length and width, aeration tube interval 3m is laid.Aerator uses air blast
Machine is combined using commercial power and solar energy, saves energy consumption.It is filled by the aerator and aeration tube of laying into river
Oxygen, in water body microorganism and animals and plants nutrient is provided.
Imitative water plant filler is laid in water bottom, lateral separation 1m is laid, and imitates water plant filler spacing 1m, and height is also 1m.
Filler spacing and height lay it is equal, can effectively prevent between filler mutually winding etc. influence.Plant imitating biological carrier performance is excellent
More, water plant form Design is imitated, specific surface area is up to 6000m2/m3, installation fixed form is simple, only one end is needed to fix, may float on
In water body, fast, the well-developed characteristic of biomembrane with biofilm, biofilm speed and performance are filled out far more than elastic filler and combined type
Material.
(2) debugging culture microflora:
After having laid aerator and imitative water plant filler, commissioning test is carried out, is during which controlled in water body by micro-pore aeration
DO is in 1-2mg/L.Aeration uses intermittent aeration mode, creates aerobic, anoxic, anaerobic environment repeatedly, is conducive to cultivate a variety of
The multi-functional microbial population of class.Imitative water plant filler makes water body itself form a big biochemistry anti-as microorganism carrier
System is answered, the degradation of organic pollutant is carried out, while having the function that denitrogenation dephosphorizing.Intermittent aeration and make full use of the sun
The energy energy, can greatly save energy consumption.After commissioning test 10-15d, a large amount of microorganism can be grown on filler, and in water body of degrading
Polluter, COD and NH3- N degradation rate reaches 70%, and microflora culture is mature.
(3) it proceeds to and reaches V class water body:
After microflora culture is mature, after continuing to run 2 months, COD degradation to 40mg/L is hereinafter, NH3- N degrade to
For 2mg/L hereinafter, DO reaches 2mg/L or more, water body integrated environment quality reaches V class water body standard.
(4) aquatic ecosystem is constructed:
On the basis of reaching V class water body, the perfect aquatic ecosystem of building health in river, including submerged vegetation system
(such as hydrilla verticillata, eel grass, watermifoil, fennelleaf pondweed herb etc.), very water floatingleaved vegetation system (such as lotus, wild rice stem, raupo,
Cattail, umbrella grass etc.) and aquatic animal system (such as snakehead, mandarin fish, silver carp, bighead, radish spiral shell, Bellamya sp, freshwater mussel etc.).
(5) it is finally reached IV class water body:
After the completion of aquatic ecosystem building, continues to run 3-5 months, microbial flora is enriched by natural aeration, sufficiently
Its self-purification capacity, the river aquatic ecosystem that water body gradually recovers one's health, stablizes, balancing are played, water quality is finally reached IV class water
Body standard: pH=6-9, DO >=3mg/L, water temperature=8-25 DEG C, COD≤30mg/L, NH3-N≤1.5mg/L。
The in-situ treatment method of the invention advantage compared with existing basin water environment Treatment process are as follows:
(1) in-situ treatment technology is used, no land occupation, energy consumption and the dirty construction sewage treatment facility in control source section are suitable or lower.
(2) water bottom is aerated, and sediment in-situ consumption is conducive to substrate improvement, is greatly reduced dredging investment or is kept away
Dredging is exempted from.
(3) power-equipment of aerating system can be only with an air blower, and low energy consumption, and maintenance management is simple, and uses the sun
It can power also more energy efficient.
(4) aeration uses intermittent aerating mode, achievees the effect that intensified denitrification and dephosphorization while reducing energy consumption.
(5) microbial flora is enriched by natural aeration, water treatment effect is good.
(6) aquatic ecosystem is constructed, water body self-purification ability is given full play to, prevents and treats water eutrophication.
(7) automatic operating, it is convenient for management, it can be achieved that unattended.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.