CN109052664B - Method for constructing novel bionic plants in front of polluted river sluice dam - Google Patents
Method for constructing novel bionic plants in front of polluted river sluice dam Download PDFInfo
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- CN109052664B CN109052664B CN201810982650.9A CN201810982650A CN109052664B CN 109052664 B CN109052664 B CN 109052664B CN 201810982650 A CN201810982650 A CN 201810982650A CN 109052664 B CN109052664 B CN 109052664B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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Abstract
The invention discloses a construction method of novel bionic plants in front of a gate dam of a polluted river, which is characterized in that the bionic plants are fixed on a trapezoidal bionic plant cultivation pool, and then the trapezoidal bionic plant cultivation pool is distributed at the bottom of the river in front of the gate dam according to the quantity of N, N-1 and N, N-1, so that the polluted river water is subjected to nitrogen removal microbial flora purification treatment on the bionic plants. The denitrified microbial community is prepared by in-situ screening and propagation in rivers, has very high pertinence, and can purify polluted rivers very efficiently.
Description
Technical Field
The invention relates to the field of environmental management.
Background
In recent years, with the gradual improvement of the living standard of people, a large amount of ecological resources are destroyed. Many of the wastes generated by human production and living are directly discharged into the nature without being timely and correctly treated, which greatly exceeds the normal metabolic capability of the nature and causes serious ecological environmental problems. Particularly, medium and small rivers interwoven in cities and towns are seriously influenced by human life, originally clear, and small rivers with fish and shrimp groups are black and smelly and invisible, and replace river water with serious standard exceeding of pollutants such as domestic garbage, ammonia nitrogen and the like in a full river channel. The front area of the river gate dam is a place where main pollutants are accumulated, the water level in front of the gate dam is deep, and the water flow is slow.
Disclosure of Invention
The invention aims to solve the problem that the defects in the prior art are overcome, and an innovative scheme is provided, in particular to a scheme which can effectively utilize the slow water flow in front of a gate dam, is beneficial to purification treatment and can divide the purified water flow and the unpurified water flow.
In order to solve the problems, the invention adopts the following scheme: a novel bionic plant construction method in front of a polluted river gate dam is characterized in that a region in front of the river gate dam is selected to be used for constructing bionic plants, and the construction method comprises the following steps:
preparing a bionic plant cultivation pool, wherein the bionic plant cultivation pool is prepared from a corrosion-resistant, light and waterproof material;
preparing a bionic plant, arranging a bionic plant body into a grid shape, and fixing a nitrogen-removing microbial community on the surface of the bionic plant body;
preparing a trapezoidal bionic plant, and fixing the bionic plant in a bionic plant cultivation pool;
constructing a trapezoid bionic plant in a far dam area, arranging the trapezoid bionic plant in an inverted trapezoid along the water flow direction, fixing the trapezoid bionic plant at the bottom of a river, and fixing a nitrogen-removing microbial community on the trapezoid bionic plant at low density;
and constructing the trapezoid bionic plants close to the dam region, arranging the trapezoid bionic plants in an inverted trapezoid shape along the water flow direction, fixing the trapezoid bionic plants at the bottom of the river, and fixing the denitrified microbial flora on the trapezoid bionic plants at a high density.
Further, the method for constructing the novel bionic plants in front of the polluted river gate dam according to the design scheme is characterized in that the trapezoid bionic plants in the far dam area and the near dam area are arranged in quantity according to N, N-1 and N, N-1 in the water flow direction.
Further, according to the above design scheme, the novel bionic plant construction method before the polluted river gate dam is characterized in that the bottom surface of the bionic plant cultivation pond is a trapezoidal bottom surface, a side edge is vertically arranged on a trapezoidal inclined edge and is of a horn-shaped structure, the long bottom edge of the trapezoidal bottom surface of the bionic plant cultivation pond is 3 meters, the short bottom edge of the trapezoidal bottom surface of the bionic plant cultivation pond is 2 meters, and the side edge of the bionic plant cultivation pond is 2 meters high.
Further, according to the design scheme, the novel bionic plant construction method before the polluted river sluice dam is characterized in that the denitrification microbial flora on the bionic plants fixed in each bionic plant cultivation pool is gradually reduced along the water flow direction.
Further, according to the design scheme, the novel bionic plant construction method before the polluted river gate dam is characterized in that the bionic plant cultivation pool is fixed at the bottom of a river, and the long bottom edge of the bionic plant cultivation pool faces the water incoming direction of the river.
Further, according to the design scheme, the novel bionic plant construction method before the polluted river gate dam is characterized in that a heavy object is fixed under the trapezoidal bottom surface of the bionic plant cultivation pool.
The invention has the following technical effects: a method for constructing a novel bionic plant in front of a gate dam of a polluted river comprises the steps of fixing the bionic plant on a trapezoidal bionic plant cultivation pool, and then arranging the trapezoidal bionic plant cultivation pool at the bottom of the river in front of the gate dam according to the quantity of N, N-1 and N, N-1, so that the polluted river water receives nitrogen removal microbial flora on the bionic plant for purification treatment. The denitrified microbial community is prepared by in-situ screening and propagation in rivers, has very high pertinence, and can purify polluted rivers very efficiently.
The trapezoidal bionic plant cultivation pool is of a horn-shaped structure, when the cultivation pool is fixed to the bottom of a river, one side of the opening of the horn faces the incoming water direction of the river, namely the long bottom edge of the trapezoidal bottom face faces the incoming water of the river, the incoming water of the river can be greatly collected, more polluted river water enters the trapezoidal bionic plant cultivation pool, the water inlet surface is wider than the water outlet surface, more sewage can be contained and enters the cultivation tank, the water outlet surface is narrower, turbulence can be formed in the cultivation tank, the residence time of the sewage in the cultivation tank is prolonged, and therefore the effect of purifying water is improved. Simultaneously, the denitrogenation microbial community on the bionic plant of fixed in trapezoidal bionic plant cultivation pond reduces along following the rivers direction step by step for the purification efficiency of trapezoidal bionic plant cultivation pond further improves, make full use of denitrogenation microbial community, still guaranteed purification efficiency when reduce cost.
The advantages of using N, N-1 alternate arrangement: the arrangement advantage can save the arrangement quantity of the bionic plants, and the cost is greatly saved compared with a river channel full of the bionic plants. The arrangement mode has higher water purification efficiency, and can store and purify the sewage which does not purify and flows through the gaps of the N-arranged cultivation tanks by the N-1-arranged cultivation tanks.
Drawings
FIG. 1 is a schematic diagram of the construction of a trapezoidal bionic plant in front of a gate dam.
Fig. 2 is a schematic structural diagram of a bionic plant cultivation pool.
Wherein 1 is a gate dam, 2 is a river, 3 is a trapezoidal bionic plant cultivation pool, 4 is a bionic plant, 31 is a trapezoidal bottom surface, and 32 is a side edge.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: the novel bionic plant is constructed in the area before the gate dam, the river bottom of the area before the gate dam is cleaned at first, the river bottom of the area before the gate dam is guaranteed to be flat, then the bionic plant cultivation pool is manufactured, the bionic plant cultivation pool is of a trapezoidal structure, the bottom of the bionic plant cultivation pool is trapezoidal, then vertical side edges are arranged on two trapezoidal inclined edges, the long edge of the trapezoidal ground is 3 meters, the short edge of the trapezoidal ground is 2 meters, and the side edge is 2 meters high. Preparing a bionic plant, wherein the prepared bionic plant body is in a grid shape, a nitrogen-removing microbial flora is fixed on the surface of the bionic plant body, then the bionic plant is fixed on a bionic plant cultivation pool to form a trapezoidal bionic plant, before the trapezoidal bionic plant is laid, the area in front of a gate dam is divided into a far dam area and a near dam area, and the interval for laying the trapezoidal bionic plant in the far dam area is larger than the interval for laying the trapezoidal bionic plant in the near dam area.
Aiming at the existing bionic plants, the length of the bionic plants is longer (1.5-2m), the bionic plants can be vertically suspended in water, the body structure of the bionic plants is in a grid shape and has a larger surface area, and the nitrogen-removing microbial flora screened and propagated in situ in rivers is fixed on the surface of the bionic plants.
The bionic plants are arranged in an inverted trapezoid along the water flow direction, the water flow speed of the far dam region is high compared with the water flow speed of the near dam region, in order to improve the water purification efficiency and save the water purification cost, the bionic plants which are arranged in the far dam region and have large width and low density and are attached with microorganisms are used for reducing the water flow speed, the number of the attached microorganisms is increased step by step in a gradient manner, and the condition that the polluted water can be fully purified in the near dam region with slow water flow is ensured.
The bionic plants are arranged in quantity according to N, N-1 and N, N-1 in the water flow direction, each trapezoidal bionic plant cultivation pool is made of corrosion-resistant, light and waterproof materials, the bottom of the cultivation pool is 3m wide, the height of the cultivation pool is 2m wide, and the top of the cultivation pool is 2m wide.
Example 2: the novel bionic plant is constructed in the area before the gate dam, the river bottom of the area before the gate dam is cleaned at first, the river bottom of the area before the gate dam is guaranteed to be flat, then the bionic plant cultivation pool is manufactured, the bionic plant cultivation pool is of a trapezoidal structure, the bottom of the bionic plant cultivation pool is trapezoidal, then vertical side edges are arranged on two trapezoidal inclined edges, the long edge of the trapezoidal ground is 3 meters, the short edge of the trapezoidal ground is 2 meters, and the side edge is 2 meters high. Preparing a bionic plant, wherein the prepared bionic plant body is in a grid shape, nitrogen-removing microbial flora is fixed on the surface of the bionic plant body, then the bionic plant is fixed on a bionic plant cultivation pool to form a trapezoidal bionic plant, before the trapezoidal bionic plant is laid, the area in front of a gate dam is divided into a far dam area and a near dam area, the interval for laying the trapezoidal bionic plant in the far dam area is larger than the interval for laying the trapezoidal bionic plant in the near dam area, and the density of the nitrogen-removing microbial flora on the trapezoidal bionic plant laid in the far dam area is lower than that of the nitrogen-removing microbial flora on the trapezoidal bionic plant laid in the near dam area. Bionic plant cultivation pond bottom surface is trapezoidal, is equipped with the side perpendicularly on trapezoidal hypotenuse, is loudspeaker column structure, the long base of the trapezoidal bottom surface in bionic plant cultivation pond is 3 meters, and the short base is 2 meters, and the side is high 2 meters.
Aiming at the special land type of the front area of the small and medium-sized slow flow river channel dam, a plurality of bionic plant cultivation ponds which are made of novel corrosion-resistant, light and waterproof materials and have the bottom width of 3m, the height of 2m and the top width of 3m and do not have the tops and the bottoms are manufactured. Fixing the bionic plants fixedly attached with different numbers in the direction that the number of microorganisms is gradually reduced along the water flow direction in the cultivation pool. Then the cultivation ponds are fixedly arranged on the riverbed according to the width of the riverway, and the cultivation ponds are arranged in number according to the water flow directions of N, N-1 and N, N-1.
Claims (6)
1. A novel bionic plant construction method in front of a polluted river gate dam is characterized in that a region in front of the river gate dam is selected to be used for constructing bionic plants, and the construction method comprises the following steps:
preparing a bionic plant cultivation pool, wherein the bionic plant cultivation pool is prepared from a corrosion-resistant, light and waterproof material;
preparing a bionic plant, arranging a bionic plant body into a grid shape, and fixing a nitrogen-removing microbial community on the surface of the bionic plant body;
preparing a trapezoidal bionic plant, fixing the bionic plant in a bionic plant cultivation pool,
constructing the trapezoid bionic plants in the far dam region, wherein the trapezoid bionic plants are arranged in an inverted trapezoid along the water flow direction, namely the long bottom edge of the bionic plant cultivation pool is fixed at the bottom of a river and faces the incoming water direction of the river, and the trapezoid bionic plants in the far dam region are fixed at the bottom of the river, and the trapezoid bionic plants in the near dam region are low in the nitrogen-removing microbial flora density and the trapezoid bionic plants in the near dam region are low in the nitrogen-removing microbial flora;
the method comprises the following steps of constructing the trapezoid bionic plants close to the dam region, arranging the trapezoid bionic plants in an inverted trapezoid shape along the water flow direction, namely fixing the bionic plant cultivation pool at the bottom of a river, wherein the long bottom edge of the bionic plant cultivation pool faces the incoming water direction of the river, and fixing the bionic plant cultivation pool at the bottom of the river, and the density of the nitrogen-removing microbial flora on the trapezoid bionic plants close to the dam region is higher than that of the nitrogen-removing microbial flora on the trapezoid bionic plants far away from the dam region.
2. The method for constructing novel bionic plants in front of a gate dam of a polluted river as claimed in claim 1, wherein the trapezoid bionic plants in the far dam region and the near dam region are arranged in number according to N, N-1 and N, N-1 according to the water flow direction.
3. The method for constructing the novel bionic plant in front of the gate dam of the polluted river as claimed in claim 1, wherein the bottom surface of the bionic plant cultivation pond is a trapezoidal bottom surface, a side edge is vertically arranged on the inclined edge of the trapezoid and is in a horn-shaped structure, the long bottom edge of the trapezoidal bottom surface of the bionic plant cultivation pond is 3 meters, the short bottom edge of the trapezoidal bottom surface of the bionic plant cultivation pond is 2 meters, and the side edge of the bionic plant cultivation pond is 2 meters high.
4. The method for constructing the novel bionic plant in front of the polluted river gate dam as claimed in claim 1, wherein the denitrified microbial flora on the bionic plants fixed in each bionic plant cultivation pool is gradually reduced along the water flow direction.
5. The method for constructing the novel bionic plant in front of the polluted river sluice dam as claimed in claim 1, wherein a heavy object is fixed under the trapezoidal bottom surface of the bionic plant cultivation pool.
6. The method for constructing a novel bionic plant in front of a gate dam of a polluted river as claimed in claim 1, wherein the interval for laying the trapezoid bionic plants in the far dam region is greater than the interval for laying the trapezoid bionic plants in the near dam region.
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