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Method for adjusting water ecological environment and purifying water quality by using special activity organisms

A technology for ecological environment and water purification, applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of secondary ecological pollution, high operating costs, and unsustainability. Achieve the effect of water quality improvement, strong pollution resistance, and realization of recycling

Inactive Publication Date: 2011-01-19
JIANGXI JDL ENVIRONMENTAL PROTECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overcome the shortcomings of existing methods such as large investment, high operating cost, low efficiency, unsustainable and easy to cause secondary ecological pollution

Method used

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  • Method for adjusting water ecological environment and purifying water quality by using special activity organisms
  • Method for adjusting water ecological environment and purifying water quality by using special activity organisms

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 (static water test)

[0024] Specifically, eutrophication water is introduced into a group of 10 containers with an effective water volume of 1 cubic meter, and TP, COD Cr , TN content adjusted to 2mg / L, 80mg / L, 50mg / L. Inoculate the same amount of adherent algae in the logarithmic growth phase into each container, and cultivate them for 3 weeks at a temperature of 25-33°C and a light intensity of 6000-12000Lx (artificial light supplement when insufficient), with a light-to-dark ratio of 12:12. ; Put the optimal healthy Gifu fish into the container according to different amounts respectively, and measure the algae biomass and water body Do respectively in 48 hours (daytime). Detection method: (1) Algae biomass: the average value of 3 × 3 square centimeters of algae samples after drying with constant weight at 2 equal points on each wall surface; (2) DO (dissolved oxygen): US Hach dissolved oxygen The measuring instrument directly measures and serves as an...

Embodiment 2

[0029] Embodiment 2 (dynamic water test)

[0030]The eutrophication water is introduced into a group of 7 containers. The effective water volume of the container is 1 cubic meter. There are 1 water inlet pipe, water outlet pipe and switch at each end to control the water flow speed to 0.3m / s. Among them, after the water inlet pipe enters the container, connect a 90° swivel elbow and lay down the bottom pipe (there are holes on it), so that the water flow is more uniform from the bottom to the upper part, so that the algae cells can fully absorb nutrients, and the water outlet pipe Equipped with anti-fishing net. Inoculate the same amount of adherent green algae species in the logarithmic growth phase into each container. Under the natural conditions of temperature 25-33°C and light intensity 6000-12000Lx (artificial supplementary light when insufficient), light-dark ratio 12:12, cultivate 3 Zhou: According to the characteristics of implementation of the test example 1 test re...

Embodiment 3

[0037] A landscape lake in an urban area covers an area of ​​more than 100 mu. The water body is relatively shallow in summer, with an average depth of less than 1.2m and a transparency of 60. However, the main indicators such as TP, NH3-N, COD, BOD, and TN all exceed the standard. Typical eutrophic water body. From May to September every year, a large area of ​​benthic and adherent algae grows on the lake bed, which seriously affects the landscape, and a large number of dead algae corpses are dissected and floated up during the high temperature season in summer, causing anaerobic reactions in the water body, turning black and smelly The water quality deteriorated, and fish and shrimp died in large numbers. Choose a sunny and sunny day in May, and put 1.0 kg of fish / m3 of water body into the lake for intensive breeding of healthy fish, and catch and harvest the fish in late September. Since then, the phenomenon of algae corpses floating up, water body turning black and smelly...

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Abstract

The invention aims to provide a novel, high-efficiency and sustainable method for performing biological treatment, prevention and control on benthonic and adhered algae in eutrophic water polluted by algae by using special activity organisms, namely gift strain nile tilapia, and enriching, digesting and converting the algae so as to adjust a water ecological environment and purify water quality. The method overcomes the defects in the conventional method, such as big investment, high operating cost, low efficiency, difficulty to sustain, easy cause of secondary ecological pollution and the like. The method is implemented by the following steps of: 1, selecting lakes or other nonliquid water areas in which the benthonic and adhered algae are abundant and adding the intensively bred healthy male gift strain nile tilapia into the water according to the proportion of 0.2 to 1.6 kilograms of fish per cubic meter water; and 2, selecting liquid water areas in which the benthonic and adhered algae are abundant, arranging fishing nets at upstream and downstream, and adding the intensively bred healthy male gift strain nile tilapia into the areas which are controlled by the fishing nets according to the proportion of 0.2 to 2.4 kilograms of fish per cubic meter water.

Description

technical field [0001] The invention relates to the technical field of biological environmental protection engineering, in particular to a method of enriching, digesting, and transforming benthic and attached algae by using specific active organisms in eutrophic water bodies polluted by algae, digesting, and transforming algae bodies, so as to regulate the ecological environment of water bodies A method for water purification purposes. Background technique [0002] The increasing eutrophication of rivers and lakes has become a worldwide environmental problem. One of the consequences is the unilateral growth, mass reproduction and even outbreak of algae. At present, the water ecological environment pollution caused by the prevalence of algae has become a global problem. Excessive algae will affect the landscape in the slightest, and cause serious alternative ecological environmental pollution to the water body, resulting in a large number of death, reduction or even extincti...

Claims

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Application Information

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IPC IPC(8): C02F3/32
Inventor 沈平锐王少林
Owner JIANGXI JDL ENVIRONMENTAL PROTECTION CO LTD
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