摘要
研究了由固体废物(炼铁废渣)制取的含有多种金属离子的染料废水脱色混凝剂(PSDC- ),试验了它对染料废水的脱色效果及对印染废水的混凝效果,并与PAC进行了比较。考察了影响PSDC- 混凝及脱色效果的因素。结果表明,pH值在6～10范围内,PSDC- 具有良好的混凝效果。PSDC- 的两个最佳脱色区为pH值6～8和pH值13左右。与PAC相比,PSDC- 不仅具有良好的混凝效果而且具有良好的脱色效果。
Polysilicic decoloration coagulant(PSDC-Ⅱ) containing several metal ions made by solid waste for treating dyestuff wastewater was prepared. The optimum conditions for applying PSDC-Ⅱ in dyeing wastewater treatment, such as concentration of PSDC-Ⅱ and pH valve, were selected. PSDC-Ⅱ prepared was used to treat the typical dyeing wastewater and that from the printing and dyeing mill and compared with PAC. The influencing factors of decoloration and coagulation were investigated. In accordance with experiment, the result indicated that PSDC-Ⅱ as a coagulant had a good effect within wide scope of pH valve(6～10) and the coagulates produced from treatment process settled out quickly. Two best ranges of pH valve for decoloratio treatment were pH 6～8 and pH 13. Compared with PAC, PSDC-Ⅱ is shown to be an excellent coagulant.
出处
《水处理技术》
CAS
CSCD
北大核心
2004年第2期113-115,共3页
Technology of Water Treatment
基金
浙江省教育科技厅专项资助项目(DZ50055).
