Method for treating wastewater generated in production of hexabromocyclododecane

A technology for the production of hexabromocyclododecane and waste water, which is applied in natural water treatment, water/sewage multi-stage treatment, reduced water/sewage treatment, etc., can solve the problem of hexabromocyclododecane wastewater treatment that cannot be completely solved, The treatment effect cannot meet the discharge requirements, the oxidant or catalyst is expensive, etc., to achieve the effect of improving the wastewater treatment effect, increasing the daily treatment capacity, and improving the flocculation effect
CN102583904AActive Publication Date: 2012-07-18山东默锐环境产业股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
山东默锐环境产业股份有限公司
Publication Date
2012-07-18
Patent Text Reader

Abstract

The invention discloses a method for treating wastewater generated in production of hexabromocyclododecane. The method comprises the following steps of: performing metal catalytic reduction on the wastewater by using iron powder and / or aluminum powder and adding inorganic sodium salt and / or inorganic magnesium salt which serves as a catalyst; and performing biochemical treatment. When the wastewater generated in the production of the hexabromocyclododecane, after the wastewater is subjected to the metal catalytic reduction and flocculent precipitation treatment, the biodegradability of the hexabromocyclododecane wastewater is greatly improved, the wastewater treatment effect is improved, the chemical oxygen demand (COD) in the treated wastewater is 80-120mg / L, ammonia nitrogen in the treated wastewater is less than 30mg / L, and the daily treatment capacity of a wastewater biochemical system is improved. A reducing agent has the advantages of readily available raw materials and low price, heavy metal pollution is avoided, and the wastewater treatment cost is reduced.
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Description

technical field

[0001] The invention relates to a technology for treating industrial wastewater, in particular to a method for treating wastewater produced by hexabromocyclododecane. Background technique

[0002] Hexabromocyclododecane, referred to as HBCD or HBCDD, is an alicyclic additive flame retardant with high bromine content. The current common production process is mainly composed of 1, 5, 9-cyclododecatriene (CDDT) and bromine in several types of mixed solvents such as alcohol hydrocarbons and alkanes. During the production process, high-concentration refractory wastewater containing alcoholic hydrocarbons and halogenated alkanes and a small amount of products is produced. The existing sewage treatment process has a low treatment effect on the wastewater produced by hexabromocyclododecane, and it is difficult to discharge the sewage up to the standard. Therefore, the treatment of HBCD production wastewater has become a bottleneck in the development of the HBCD ind...

Claims

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