摘要
采用磁絮凝技术处理高悬浮物矿井水,研究了混凝剂、絮凝剂、磁种投加量、磁种浸泡p H值、沉淀时间和搅拌强度对出水效果的影响,并使用MFC+Open CV对絮体分形结构进行分析。结果表明,最佳混凝剂为PAC,投加量60 mg/L;最佳絮凝剂为阴离子PAM,投加量4 mg/L;一级、二级、三级反应池最佳搅拌强度分别为300、200、100r/min;磁种投加前应在中性或碱性溶液中浸泡,磁种的投加显著缩短沉淀时间,15 s内水中絮体即可沉淀完毕,出水浊度去除率达95%以上;磁絮凝絮体分形维数1.692 55,R2为0.9720 6。
Magnetic flocculation technology was used to treat mine water containing high suspended matters, the effect of coagulant, flocculant, magnetic seeds dosage, magnetic seeds soaking pH value, settling time and stirring intensity on effluent treatment efficiency was studied, and MFC＋OpenCV was used to analyze floc fractal structure. The results showed that, the optimal coagulant was PAC with the best dosage of 60 mg/L, optimal flocculant was anion PAM with the best dosage of 4 mg/L, optimal stirring intensity of primary, secondary and tertiary reaction tanks was 300 r/min, 200 r/min, 100 r/min, respectively. Magnetic seeds should be soaked in neutral or alkaline solution before added into reaction tank, and with the addition of magnetic seeds, settling time was shortened significantly within 15 s, effluent turbidity removal rate could be above 95%, magnetic flocculation flocs fractal dimension and R2 was 1.692 55 and 0.972 06 respectively.
作者
张晓航
何绪文
王浩
袁野
史弋
李福勤
ZHANG Xiaohang1, HE Xuwen1, WANG Hao1, YUAN Ye1, XU Yi1, LI Fuqin2(1.Sehool of Chemical and Environmental Engineering, China University of Mining ＆ Teehnology（Beijing）, Beijing 100083, China; 2.School of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China)
出处
《水处理技术》
CAS
CSCD
北大核心
2018年第4期122-125,132,共5页
Technology of Water Treatment
基金
矿井水资源化优化配置关键技术及工程示范(15274006D)
关键词
磁絮凝
混凝
OPEN
CV
分形
magnetic flocculation
coagulation
OpenCV
fractal
