Pretreatment process of organic silicon wastewater

An organosilicon and pretreatment technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem that the iron-carbon micro-electrolysis treatment process cannot achieve the treatment effect and the treatment cost remains to be Reduction, limited redox capacity and other problems, to achieve the effect of improving biodegradability, reducing load, and convenient operation

Inactive Publication Date: 2011-04-06
蓝星环境工程有限公司
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Problems solved by technology

[0006] However, this method still has imperfections, so that the iron-carbon micro-electrolysis treatment process cannot achieve a better treatment effect, and the organic silicon wastewater is treated by the micro-electrolysis process, although part of the CO

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  • Pretreatment process of organic silicon wastewater
  • Pretreatment process of organic silicon wastewater
  • Pretreatment process of organic silicon wastewater

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[0032] Example 1

[0033] The organic silicon wastewater of a certain organic silicon factory is used as the water to be treated, and the process of the invention is adopted for treatment. The specific process steps are as follows:

[0034] 1) Homogenization: Homogenize the organic silicon wastewater in the conditioning tank, with COD of 1626.01 mg / L, PH value of 1.1, and chloride ion (Cl-) concentration of 14988 mg / L;

[0035] 2) Slag removal and oil separation treatment: the homogenized organic silicon wastewater is treated with scum and oil removal to remove most of the visible scum and oil;

[0036] 3) Micro-electrolysis: The effluent from the slag removal and oil separation treatment is treated by iron-carbon micro-electrolysis process. The iron-carbon micro-electrolysis process adopts the filler type iron-carbon micro-electrolysis process. Among them, the filler (sold by Bluestar Environmental Engineering Co., Ltd. The combined micro-electrolysis filler): water (volume ratio) =...

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Abstract

The invention discloses a pretreatment process of organic silicon wastewater, comprising the steps of homogeneous treatment, slag removal, oil removal, iron-carbon micro-electrolysis process, Fenton process, neutralization deposition and overflow and discharge of supernate. Aiming at the strong acid characteristic of the organic silicon wastewater, the iron-carbon micro-electrolysis can be directly carried out after the homogeneous impurity removal; partial COD (Chemical Oxygen Demand) can be degraded while the biochemical quality of the wastewater is improved and the pH value is improved; then hydrogen peroxide is directly added to form a Fenton system; a strong oxidant is formed to damage the structure of organic matters and chromophonic groups in the wastewater and effectively oxidize so as to remove the organic matters which are difficult to degrade and cannot be removed by the traditional wastewater treatment technology, and thereby the aims of further reducing the COD and improving the biodegradability of the wastewater can be improved. The organic silicon wastewater can reach the national third-grade discharge standard after being subjected to neutralization and the precipitation and reach the national first-grade discharge standard after being subjected to biochemical treatment. The pretreatment process has the advantages of low cost and stable treatment effect and is simple for operation.

Description

technical field [0001] The invention relates to a pretreatment process of wastewater, in particular to a pretreatment process of organic silicon wastewater, which belongs to the field of industrial sewage treatment. Background technique [0002] Since the 1990s, due to the increasingly wide application of new materials such as silicone oil, silicone rubber and silicone resin in silicone products, the global silicone industry has maintained a high-speed development. However, the characteristics of organic silicon industrial wastewater, such as strong acidity, high toxicity, high salinity, high COD concentration, poor biodegradability, and refractory degradation, make it extremely difficult to treat organic silicon industrial wastewater. At present, research on the treatment of organic silicon industrial wastewater at home and abroad There are few results, and there is no mature treatment process for organic silicon wastewater. [0003] The production of organosilicon monomer...

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Application Information

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IPC IPC(8): C02F9/06
Inventor 郭豪李兴峰朱一荣李芳军海龙洋
Owner 蓝星环境工程有限公司
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