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Method for removing pollutants in sewage

A pollutant and sewage technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of human physical and mental health hazards, inability to remove pollutants, and microbial decomposition and utilization , to achieve the effect of less investment, easy operation and high bacterial activity

Inactive Publication Date: 2013-12-18
JIANGSU LV CHUAN ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composition of industrial sewage is relatively complex, especially a large number of artificially synthesized compounds entering the environment. Such substances are mainly ammonia nitrogen, sulfide and phosphorus-containing compounds. Due to the complexity of the structure of these substances, they cannot be decomposed and utilized by microorganisms in a short time. The traditional wastewater treatment method using activated sludge to cultivate and domesticate microorganisms can no longer effectively remove these pollutants. These substances have accumulated in the environment for a long time, causing great pollution to the ecological environment on which we live, and affecting human physical and mental health. bring great harm
A considerable number of industrial polluting enterprises in our country would rather be punished than invest in wastewater treatment. Even if there is a sewage treatment plant, the operation is extremely abnormal.

Method used

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  • Method for removing pollutants in sewage

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Effect test

Embodiment 1

[0023] A method for removing pollutants in sewage, comprising the steps of:

[0024] Preparation of the composite bacterial agent: mix the mixed bacterial solution and the carrier according to the weight ratio of 1:1, stir evenly, then let it stand for 6 hours, and finally dry it at 4°C at low temperature, and control the water content to 6% after drying; The carrier is obtained by mixing bamboo charcoal, chitosan and diatomaceous earth according to the mass ratio of 2:2:1; the above-mentioned mixed bacteria liquid is mixed with the following raw material bacteria in parts by weight: 10 parts of Rhodococcus, 9 parts of Thiobacillus denitrifica, 7 parts of Pseudomonas stutzeri, 6 parts of Sphingomonas, 5 parts of Bacillus pumilus, 2 parts of Phanerochaete chrysosporium; 8 pcs / ml.

[0025] Sewage pretreatment: First, the sewage (NH3-N is 246mg / L, sulfide is 49mg / L, and phosphorus-containing pollutants is 37mg / L) is passed through a solid-liquid separator for solid-liquid separa...

Embodiment 2

[0028] A method for removing pollutants in sewage, comprising the steps of:

[0029] Preparation of the composite bacterial agent: mix the mixed bacterial solution and the carrier according to the weight ratio of 1:1, stir evenly, then let it stand for 6 hours, and finally dry it at 4°C at low temperature, and control the water content to 6% after drying; The above-mentioned carrier is obtained by mixing bamboo charcoal, chitosan and diatomaceous earth according to the mass ratio of 2:2:1, wherein the particle size of the bamboo charcoal is 10 mesh; the above-mentioned mixed bacteria liquid is mixed by the following raw material bacteria in parts by weight: 10 parts, 9 parts of Thiobacillus denitrification, 7 parts of Pseudomonas stutzeri, 6 parts of Sphingomonas, 5 parts of Bacillus pumilus, 2 parts of Phanerochaete chrysosporium; control in 2×10 8 Individual / ml; Rhodococcus is Rhodococcus rhodochrous ATCC15906; Thiobacillus denitrificans is ATCC25259; Pseudomonas stutzeri i...

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Abstract

The invention belongs to the technical field of environmental protection, and discloses a method for removing pollutants in sewage. A composite microbial inoculant is used in the method and comprises rhodococcusrhodochrous, thiobacillus denitrificans, pseudomonas stutzeri, sphingomonas, bacillus pumilus and phanerochaete chrysosporium. According to the method, the pollutants are mainly treated by using microorganisms, so that the pollutants containing ammonia, nitrogen, sulfur and phosphorus can be effectively removed, and the investment cost is low; the method has broad application prospect.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a method for removing pollutants in sewage. Background technique [0002] With the increasing urban population and the continuous development of industry and agriculture, water pollution accidents occur frequently, seriously endangering the health and even life of people and animals. The discharge of nitrogen and phosphorus in many lakes and reservoirs has caused water eutrophication, which seriously threatens human production, life and ecological balance. Ammonia nitrogen is one of the main factors causing water eutrophication. In order to meet the continuous improvement of the public's requirements for environmental quality, the country has formulated more and more stringent emission standards for nitrogen. Research and development of economical and efficient nitrogen removal treatment technology has become the focus and focus of water pollution co...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 李丽萍
Owner JIANGSU LV CHUAN ENVIRONMENTAL PROTECTION TECH
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