人造金刚石废水处理的研究  

TREATMENT OF SYNTHETIC DIAMOND WASTEWATER

作　　者：郝学奎[1] 李效红[1] 王三反[2] 

机构地区：[1]兰州工业高等专科学校建工系,甘肃兰州730050 [2]兰州交通大学环境与市政工程学院,甘肃兰州730070

出　　处：《水处理技术》2007年第10期55-57,共3页Technology of Water Treatment

摘　　要：针对人造金刚石废水中的重金属回收和生产废水的处理,提出了一整套从酸性废水中回收重金属镍、锰的新型工艺。该工艺中对Mn2+采用KMnO4氧化法,对Ni2+采用电解回收法来进行处理。通过试验,确定了KMnO4氧化剂的投加量,每1mgMn2+需要1.9mgKMnO4;用膜扩展阴极法电解回收Ni2+的最佳运行条件为:pH=4.5,H3BO3作为缓冲剂,电解温度控制在(40±5)℃,电流密度为3A/dm2;A new technological process was put forward to recover nickle and manganese from the synthetic diamond wastewater and make the production wastewater reach the discharging requirements. KMnO4 oxidation method was adopted for Mn^2＋ recovery and electrolytic recovering method for Ni^2＋ recovery. Through the test, the dosage of KMnO4 oxidant was determined with the need of 1.9 mg KMnO4 each 1 mg Mn^2＋. The optimal operating condition for recovering Ni^2＋ by membrane expanding cathode method are： pH4.5, HrBO3 as buffering agent, electrolytic temperature within （45＋5）℃, curerrent density 3A/dm^2.

关 键 词：人造金刚石废水 氧化 锰 膜扩展阴极法电解 镍 

分 类 号：X703.1[环境科学与工程—环境工程]