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Method used for carbonate bacterium and phosphate bacterium compound passivating heavy metal and solidifying pollution electroplating sludge

A technology of electroplating sludge and carbonate bacteria, which is applied in chemical instruments and methods, water pollutants, biological sludge treatment, etc., can solve the problems of low treatment efficiency, difficult treatment of electroplating sludge, pollution, etc., and achieve high-efficiency deposition Effect

Inactive Publication Date: 2018-10-19
WENZHOU UNIVERSITY
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Problems solved by technology

[0002] The treatment of electroplating sludge has always been a difficult problem. The traditional treatment method is more focused on chemical means, but this treatment method brings new pollution, and the treatment efficiency is low

Method used

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  • Method used for carbonate bacterium and phosphate bacterium compound passivating heavy metal and solidifying pollution electroplating sludge

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Embodiment Construction

[0010] The present invention will be further described in detail below in conjunction with the examples, wherein the specific examples described are only used to explain the present invention, and are not intended to limit the present invention.

[0011] The method for composite passivation of heavy metals and solidification of polluted electroplating sludge by carbonate bacteria and phosphate bacteria provided by the invention is characterized in that it comprises the following steps:

[0012] 1) Solution A: Bacillus pasteuri hydrolyzes urea to generate carbonate, solution B: Bacillus subtilis hydrolyzes organic phosphate monoester to generate phosphate ions, and solution A and solution B are prepared to form a composite bacterial solution;

[0013] 2) Mechanically evenly mix the composite bacterial solution with the electroplating sludge containing heavy metal ions, so that the Bacillus subtilis bacteria powder flocculates the mixture of electroplating sludge and composite ba...

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Abstract

The invention discloses a method used for carbonate bacterium and phosphate bacterium compound passivating heavy metal and solidifying pollution electroplating sludge. The method comprises following steps: 1, a solution A is prepared, a solution B is prepared, and the solution A and the solution B are blended so as to obtain a composite bacterium solution, wherein the solution A is prepared through hydrolysis of urea with Bacillus pasteurii into carbonate ions, and the solution B is prepared through hydrolysis of an organic phosphomonoester into phosphate ions; 2, the composite bacterium solution and heavy metal ion-containing electroplating sludge are subjected to mechanical uniform stirring; 3, Bacillus subtilis is adopted for flocculation of electroplating sludge, vacuum dehydration iscarried out, the composite bacterium solution is adopted for passivation of free heavy metal ions in the electroplating sludge, and electroplating sludge solidifying is carried out. The method is capable of realizing high efficiency passivation of free heavy metal ions in electroplating sludge, solidifying electroplating sludge, and realizing environment-friendly discharge of water in sludge, andthe solidified electroplating sludge can be treated through deep landfilling.

Description

technical field [0001] The invention relates to a method for compound passivation of heavy metals and consolidation of polluted electroplating sludge by carbonate bacteria and phosphate bacteria. Background technique [0002] The treatment of electroplating sludge has always been a difficult problem. The traditional treatment method is more focused on chemical means, but this treatment method brings new pollution, and the treatment efficiency is low. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for composite passivation of heavy metals and consolidation of polluted electroplating sludge by carbonate bacteria and phosphate bacteria. Deposit and solidify electroplating sludge. [0004] For this reason, the method for composite deposition of carbonate bacteria and phosphate bacteria provided by the invention and solidified polluted electroplating sludge is characterized in that: comprise the following s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02C02F11/12C02F101/20C02F101/30C02F103/16
CPCC02F11/02C02F11/12C02F2101/20C02F2101/30C02F2103/16
Inventor 於孝牛余闯蔡晓庆钱春香邵吉成周敏高燕
Owner WENZHOU UNIVERSITY
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