摘要
Abstract
The pretreatment technology of wastewater of CCMP is studied in this paper, the process is a combined craft of evaporation and electro-catalytic oxidation. Firstly, the removal efficiency of COD, total phosphorus, and total nitrogen is studied by evaporation under neutral condition. Then the removal efficiency of COD, TP, and TN is studied under different conditions of initial pH, current and time. The result shows the removal efficiency of COD, TP, and TN is 81.2%, 99.8% and 60.9% respectively. In the experiment of electro-catalytic oxidation, the removal efficiency of COD is 29.4%, the TN is below 4 mg/L and the TN below 120 mg/L when pH is 7.0, current is 2A, time is 2 h. The ratio of B/C is increased to 0.32 and biodegradability is improved greatly. It shows that the combined of evaporation and electro-catalytic oxidation is a pretreatment method of wastewater of CCMP, which results also provide reference for engineering practice.关键词
CCMP/蒸发/电催化氧化/废水处理Key words
CCMP/evaporation/electro-catalytic oxidation/wastewater treatment分类
资源环境
