臭氧催化氧化深度处理印染废水的效能与成本

Efficiency and Cost of Catalytic Ozonization Processes for Advanced Treatment of Printing and Dyeing Wastewater

印染废水经常规处理后,出水按照臭氧催化氧化和空塔氧化两种深度处理技术路线进行处理,以此对这两种印染废水深度处理技术进行效能和成本的评估与分析。结果表明两者均可使脱色达到排放标准。在投加臭氧催化剂的情况下,臭氧投加量为30 ppm,其出水效果与空塔在臭氧投加量为40 ppm时相当,节省了臭氧的消耗量,运行成本从0.45元/m3下降到0.33元/m3。每年可节省运行费用约105万元,增加臭氧催化剂的投资收回期小于2年。

The ozone catalytic ozanization and oxidation alone were used to treat printing and dyeing wastewater treated by conventional treatment. The efficiency and cost of these two advanced treatment of printing and dyeing wastewater were analyzed and evaluated. The results show that both processes can achieve the purpose of bleaching emission standard. The effluent effect of 30 ppm ozone dosage with calatyst is equal to the effluent effect of 40 ppm ozone dosage without calatyst. The ozone catalytic ozonization processes save the consumption of ozone and make the operation cost decrease from 0. 45 to 0. 33 RMB per cubic meter. Catalyst can save operation cost which is about 1 050 000 RMB per year, and the paybaek period of catalytic will be less than 2 years.