钙沉淀混凝处理太阳能电池生产高氟废水研究  

Study on the Treatment of Solar Cell Produced Wastewater Containing High Fluoride by Calcium Coagulation-sedimentation

作　　者：肖雪峰[1] 孙永军[1] 梅凯[1] 王雄 朱宏博[1] 沈浩[1] XIAO Xuefeng SUN Yongjun MEI Kai WANG Xiong ZHU Hongbo SHEN Hao(Jiangsu Key Laboratory of Industrial Water-Conservation ＆ Emission Reduction, College of Urban Construction, Nanjing Teeh University, 211800 Jiangsu Honest Environmental Protection Technology Co., Ltd, 210046, Nanjing, China)

机构地区：[1]江苏省工业节水减排重点实验室南京工业大学城市建设学院,211800 [2]江苏奥尼斯环保科技有限公司,江苏南京210046

出　　处：《水处理技术》2017年第5期30-32,共3页Technology of Water Treatment

基　　金：国家自然科学基金(51508268);江苏省自然科学基金(BK20150951);中国博士后科学基金(2016M591835)

摘　　要：以某光伏企业的生产太阳能电池板车间产生的高含氟废水(F^-的质量浓度为7.456 g/L)为处理对象,投加钙源3级混凝沉淀法除氟。研究了钙投加量、钙源、pH对混凝沉淀除氟效果的影响。结果表明,通过外加钙源,混凝沉淀法可显著降低水样中F^-含量。混凝沉淀工艺的优化条件为:Ca^(2+)投加量为2倍F^-量,混凝沉淀过程pH为8~9,混凝剂聚合氯化铝、助凝剂聚丙烯酰胺的投加量分别为400、4 mg/L,在此条件下,二级混凝沉淀后上清液F^-的质量浓度低于10 mg/L,达到GB 8978-2002中的一级排放标准。The high fluoride-containing wastewater （the mass concentration of P was 7.456 g/L） in the solar panels workshop from a photovoltaic enterprise was adopted as treatment object in this paper. The fluoride was removed by adding calcium source through three levels of coagulation-sedimentation. The critical factors effecting the removal of fluoride, such as dosage of calcium, calcium source, and pH were investigated. The results demonstrated that coagulation-sedimentation process by adding calcium source could significantly reduce the F- content in the water samples. The optimal condition of coagulation-sedimentation process was that： the Ca：＋ dosage was 2 times of F content, pH was 8-9 controlled in the process of coagulation-sedimentation, coagulant PAC and coagulant aid PAM dosages were 400 mg/L and 4 mg/L respectively. After the secondary coagulation-sedimentation, the mass concentration of F- was less than 10 mg/L, which reached the primary discharge standard GB 8978-2002.

关 键 词：含氟废水 太阳能电池 除氟 混凝 沉淀 

分 类 号：X703.1[环境科学与工程—环境工程]