Lake eutrophication remediation method

A technology of eutrophication and restoration method, which is applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., and can solve problems such as death of aquatic organisms, harm to human health, and decline in water quality , to achieve the effect of high efficiency, high microbial survival rate and stable survival

Inactive Publication Date: 2011-06-01
张肇宏
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The eutrophication of lakes has the following hazards: (1) the color of the water body changes, becomes turbid, and affects the landscape; for example, when the seawater is eutrophic, it sometimes appears red; (2) the water emits bad taste; (3) the dissolved oxygen decreases; (4) A large number of aquatic organisms die, which may be caused by lack of oxygen or obstructed respiration; (5) Some algae produce toxins, which may directly endanger human health; (6) Difficulties in water treatment and deterioration of water quality

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Examples

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Embodiment 1

[0029] A lake eutrophication restoration method, comprising the following steps:

[0030] (1) Set microbial restoration tank 1, adsorption tank 2 and cooling tank 3 sequentially in a semi-buried manner on the lake bank 14; set lake bank walkway 9 and plant lake bank vegetation 10 on the lake bank 14;

[0031] (2) Microbial remediation stage: special functional bacteria (photosynthetic bacteria) that have been screened and domesticated for 2 months are implanted into saddle-shaped plastic packing (the preparation of saddle-shaped plastic packing refers to Chinese patent 200720032486.2), and special functional bacteria are planted into saddle-shaped plastic The concentration in the filler is 50ppm; the saddle-shaped plastic filler is placed in the microbial remediation tank 1 and submerged by the water body, and the amount of the saddle-shaped plastic filler is based on the amount of organic pollutants removed from the water body, and its range is 5kgCOD / (m 3 d); Utilize the res...

Embodiment 2

[0040] A lake eutrophication restoration method, comprising the following steps:

[0041] (1) Set microbial restoration tank 1, adsorption tank 2 and cooling tank 3 sequentially in a semi-buried manner on the lake bank 14; set lake bank walkway 9 and plant lake bank vegetation 10 on the lake bank 14;

[0042] (2) Microbial remediation stage: special functional bacteria (nitrification and denitrification bacteria) that have been screened and domesticated for 2 months are implanted into saddle-shaped plastic packing (the preparation of saddle-shaped plastic packing refers to Chinese patent 200720032486.2), and special functional bacteria are planted into the saddle The concentration in the plastic filler is 150ppm; the saddle-shaped plastic filler is placed in the microbial remediation tank 1 and submerged by the water body, and the amount of the saddle-shaped plastic filler is based on the amount of organic pollutants removed from the water body, and its range is 10kgCOD / (m 3 d...

Embodiment 3

[0051] A lake eutrophication restoration method, comprising the following steps:

[0052] (1) Set microbial restoration tank 1, adsorption tank 2 and cooling tank 3 sequentially in a semi-buried manner on the lake bank 14; set lake bank walkway 9 and plant lake bank vegetation 10 on the lake bank 14;

[0053] (2) Microbial remediation stage: screening and acclimating 2 months of special functional bacteria (Bacillus subtilis) into the saddle-shaped plastic packing (the preparation of the saddle-shaped plastic packing refers to Chinese patent 200720032486.2), and the special functional bacteria are planted into the saddle-shaped The concentration in the plastic filler is 100ppm; the saddle-shaped plastic filler is placed in the microbial restoration tank 1 and submerged by the water body. The amount of the saddle-shaped plastic filler is based on the amount of organic pollutants removed from the water body, and its range is 0.5kgCOD / (m 3 d) Use the restoration and purificatio...

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Abstract

The invention discloses a lake eutrophication remediation method, which comprises the following steps of: (1) sequentially arranging a microbial remediation water tank, an absorption water tank and a cooling water tank on lakeshore in a half-burying way; (2) performing microbial remediation; (3) performing absorption; (4) performing cooling; and (5) performing ecological remediation in water. In the microbial remediation stage of the method, microorganisms grow stably in a certain controllable environment so as to achieve high microorganism survival rate; the microorganisms form a biomembrane system in a filler to achieve strain diversity; the microorganism system rapidly reduces the chemical oxygen demand (COD), biochemical oxygen demand (BOD) and ammonia nitrogen of organic pollutants without producing organic sludge and causing secondary pollutions; the method ensures high water purification dephosphorization efficiency; and exception handling for realizing a temperature reduction function is performed in the high temperature environment of a water bloom peak period.

Description

technical field [0001] The invention belongs to the field of lake water purification and restoration for environmental protection, and in particular relates to a lake eutrophication restoration method. Background technique [0002] At present, the pollution situation of lakes in China is serious, more than 80% of the lakes are polluted, many lakes have not reached the water quality standard of Class III, fish and shrimps have basically disappeared, and are replaced by various benthic micro-groups that adapt to pollution, and the water quality of lakes The color and smell have deteriorated to varying degrees, and some lakes have even become sewage receiving bodies. Many well-known lakes are geographically located around large and medium-sized cities, and their pollution has led to a decline in the quality of urban landscapes, seriously affecting the physical and mental health of residents in these areas. Water pollution has led to a decline in the biodiversity of lakes and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 张肇宏
Owner 张肇宏
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