Treating agent for biorefractory substances in high-salinity organic wastewater

A technology for refractory biodegradable and organic wastewater, applied in the field of new oxidants, can solve problems such as poor treatment effects (such as iron-carbon micro-electrolysis and high-salt environment), achieve COD value reduction, obvious degradation ability, and demonstrate the effect of technological progress

Active Publication Date: 2017-08-18
CHENGDU KEHENG ENVIRONMENTAL PROTECTION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditionally, Fenton’s reagent, iron-carbon micro-electrolysis, electroflocculation (electrocatalysis), ozone catalysis and other methods are used in traditional wastewater treatment projects, but the treatment effect is poor (such as iron-carbon micro-electrolysis) or it is not suitable for high-salt water Environmental (e.g. ozone catalytic and electrochemical methods)

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  • Treating agent for biorefractory substances in high-salinity organic wastewater
  • Treating agent for biorefractory substances in high-salinity organic wastewater

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Embodiment

[0029] The raw materials are prepared in parts by weight, and are composed of two components A and B, wherein component A consists of 20-50 parts of sulfuric acid, 10-20 parts of o-iodobenzoic acid, 10-20 parts of potassium bromate, 10-20 parts Potassium iodate, 20-50 parts of water; the best preparation is: 30 parts of sulfuric acid, 15 parts of o-iodobenzoic acid, 10 parts of potassium bromate, 10 parts of potassium iodate, 35 parts of water. Preparation: Add sulfuric acid and o-iodobenzoic acid to a 500mL three-necked flask. The temperature of the system was controlled at 45°C, and potassium bromate and potassium iodate were added in batches under mechanical stirring. After the addition, the temperature of the system was raised to 65° C., and the stirring was continued for 3 hours. Then cool the system to room temperature, and finally add water and stir evenly to form A component.

[0030] Component B is composed of 20-30 parts of sodium perchlorate, 10-20 parts of potass...

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Abstract

The invention discloses a treating agent for biorefractory substances in high-salinity organic wastewater. The treating agent comprises a component A and a component B; the component A is prepared from, by weight, 20-50 parts of sulfuric acid, 10-20 parts of o-iodobenzoic acid, 10-20 parts of potassium bromate, 10-20 parts of potassium iodate and 20-50 parts of water; the component B is prepared from, by weight, 20-30 parts of sodium perchlorate, 10-20 parts of potassium perchlorate, 10-20 parts of potassium nitrate and 50-60 parts of water, wherein a weight ratio of the component A to the component B is 8:2. The treating agent is green, environmental friendly, high in oxidation performance and capable of quickly decomposing biorefractory organics in water to realize shape decline of COD values and also has an evident degradation effect on ammonia nitrogen in water. Therefore, the treating agent can be widely applied to removal of biorefractory organics in high-salinity wastewater of chemical engineering, coal chemical industry, oil extraction plants, refineries and the like and manifests technical progress.

Description

technical field [0001] The invention relates to a method for synthesizing an oxidant used for treating high-salt, refractory organic wastewater. The oxidant has good oxidation ability and can be widely used in the treatment of various refractory organic wastewater. At the same time, it has the performance of removing organic matter, and is a new type of oxidant with wide applicability. Background technique [0002] Petroleum mining, refining and other chemical industries have always been major polluters. According to statistics, chemical sewage accounts for 21% of the total industrial sewage in my country, ranking first, and the current compliance rate of chemical sewage discharge is only 52.9%. The composition of raw materials in the chemical industry is complex, and the water quality of most chemical wastewater has the characteristics of high biodegradable organic components and high salt content. [0003] Oilfield produced water is a by-product of the oilfield productio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C02F101/30C02F103/10
Inventor 张克江马江平吴树林
Owner CHENGDU KEHENG ENVIRONMENTAL PROTECTION TECH
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