Abstract:

It has been proved from the engineering practice that the use of combination of highly efficient biological and ozone oxidation method has good effects on the pretreatment of highly concentrated saline organic wastewater through evaporation of desalination in a chemical industry.The removal rate of the COD in the treated wastewater can reach 96.1%,and the water quality of effluent meets the requirements of the second class of Integrated Wastewater Discharge Standard(GB 8978—1996).The combinated process is of value to the treatment of organic wastewater with high concentration and low biodegradability.

Key words: organic wastewater, desalination, biological treatment, chemical oxidation

摘要：

工程实践证明,某化工企业高浓度有机含盐废水,经过蒸发脱盐预处理后,再用高效生物和臭氧氧化组合方法进行处理,其处理效果良好,处理后废水的COD去除率达到96.1%,出水符合《污水综合排放标准》(GB 8978—1996)中的二级标准。该组合工艺对高浓度可生化性较差的有机废水处理有一定的应用价值。

关键词: 有机废水, 脱盐, 生物处理, 化学氧化

CLC Number: 

• X703.1