Test Research on the Treatment of Rectifier Diode Production Wastewater from a Company

• 作者: Cao Xu Shang Kai Yang Changli
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: RECTIFIER DIODE Process WASTEWATER Heavy metal ions Neutralization/coagulation SEDIMENTATION method China
• 年，卷（期）: 2016,（4）
• 页码范围: 50-52
• 页数: 3页
• 分类号: P

摘要

Rectifier diode production wastewater that contains acid, alkali and heavy metal ions in a company was treated by using neutralization/coagulation sedimentation method. Firstly, pH of wastewater was adjusted via neutralization reaction, and then heavy metal ions (Cu2+, Ct2 andPb2+) were removed by adding coagulant PAC and flocculant PAM. Different acid-alkali neutralization reactions were conducted under the process condition to analyze and compare their neutralization effects. The results showed that removal rates of heavy metal ions were high after coagulation test： Cu2+, Pb2+ and Cr2+ contents dropped from 13.230, 0.032, and 1.720 m g /L to 0 .3 , 0.001, and 0.24 m g/L； besides, total iron, total manganese and turbidity all had very good removal effects.