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Comprehensive physical and chemical treatment device and method of organic silicon wastewater

A treatment device and silicone technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as economic deviation and high energy consumption

Active Publication Date: 2014-04-02
SHANDONG DONGYUE ORGANIC SILICON MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention separates volatile pollutants and waste water in the form of gas by treating the waste water with an evaporative condenser, improves the biochemical properties of the waste water, and recovers useful resources such as salts. economic bias

Method used

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  • Comprehensive physical and chemical treatment device and method of organic silicon wastewater
  • Comprehensive physical and chemical treatment device and method of organic silicon wastewater
  • Comprehensive physical and chemical treatment device and method of organic silicon wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1200 tons of organic silicon wastewater, COD about 2000mg / L.

[0040]1. The wastewater enters the regulating tank for pretreatment, and the oil slick and dust residue are removed by the oil scraper. Add 0.5kg of calcium carbide mud to adjust the pH to 9, add the prepared 0.2kg / T micro-electrolytic sedimentation and 2g / T polyacrylamide particles, and fully stir and coagulate with aeration to make the insoluble substances clump and precipitate.

[0041] 2. The supernatant is pumped to the first-level ultraviolet radiation tank through the first-level microfiltration rotating membrane, and an ultraviolet emission unit with a total power of 8 kilowatts is placed in the tank. The waste water stays in the tank for 2 minutes and flows into the first-level micro-electrolytic pool. Add sulfuric acid to the micro-electrolytic cell to adjust the pH value to 2, add 0.1‰ industrial hydrogen peroxide, turn on the aeration, and the residence time is about 1 hour.

[0042] 3. The effl...

Embodiment 2

[0047] 200 tons of organic silicon wastewater, COD is about 1000mg / L.

[0048] 1. The wastewater enters the regulating tank for pretreatment, and the oil slick and dust residue are removed by the oil scraper. Add 0.5kg of calcium carbide mud to adjust the pH to 8, add the prepared 0.2kg / T micro-electrolytic sedimentation and 2g / T polyacrylamide, and fully stir and coagulate with aeration to make the insoluble substances clumped and precipitated.

[0049] 2. The supernatant is pumped to the first-level ultraviolet radiation tank through the first-level microfiltration rotating membrane, and an ultraviolet emission unit with a total power of 4 kilowatts is placed in the tank. The waste water stays in the tank for about 4 minutes and flows into the first-level micro-electrolytic pool. Add sulfuric acid to the micro-electrolytic cell to adjust the pH value to 4, add 0.1‰ industrial hydrogen peroxide, turn on the aeration, and the residence time is about 0.5 hours.

[0050] 3. The...

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Abstract

The invention relates to the treatment of wastewater in organic silicon production, and provides a technology combining multiple physical and chemical treatment systems in order to overcome the limitation of the biochemical treatment stage of the prior art. Through adjusting tank pretreatment, first microfiltration rotary membrane filtration, first ultraviolet irradiation, first internal electrolysis, second microfiltration rotary membrane filtration, second ultraviolet irradiation, second internal electrolysis, third microfiltration rotary membrane filtration, active carbon adsorption, carbon mineral fiber polymerization aggregate adsorption and ultrafiltration reverse osmosis filtration of the wastewater, the output water reaches the national primary emission standard and even more strict local standard. Through the invention, multiple new technologies and new equipment are applied for the first time or innovatively in the industry, the scientificity and feasibility of the technology are proved by facts, and a brand new solving idea and path is provided for treating wastewater in the domestic organic silicon industry.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and in particular relates to a device and a method for treating organic silicon production wastewater by adopting a comprehensive physicochemical combination process. Background technique [0002] Organosilicon is a national strategic industrial product, which is widely used in military industry, aerospace, electronics, daily chemicals and other fields. Organosilicon is called "industrial monosodium glutamate", which shows its important position in the basic chemical system. The chemical industry is a priority industry. However, the organic silicon industry discharges a wide variety of harmful waste water in production, including chlorosilane, chloropropane, HCl, methanol, organic silicon intermediates, silicon coupling agents, silicone oil, silicone grease, nano-SiO 2 Powder, metasilicate, metal ions, etc., wastewater is often acidic, with complex chemical composition, B...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08
Inventor 王维东蔡水兵于源伊港刘磊段晓明
Owner SHANDONG DONGYUE ORGANIC SILICON MATERIAL