聚合氯化铝铁去除微污染水体中藻类的研究  

Algae removal in micropollution water with flocculant of polyaluminum ferric chloride

作　　者：邹有红[1] 李文兵[2,3] 周蓬蓬[2] 余龙江[2] 王光华[3] 

机构地区：[1]武汉工业学院生物与化学工程系,武汉430000 [2]华中科技大学生命科学与技术学院,武汉430074 [3]武汉科技大学化学工程与技术学院,武汉430081

出　　处：《环境工程学报》2009年第1期108-112,共5页Chinese Journal of Environmental Engineering

摘　　要：以聚合氯化铝铁(PAFC)为絮凝剂,H2O2为预氧化剂,用正交实验研究了PAFC处理微污染水体中藻类和降低浊度,得出正交实验中各因素的主次关系及对除藻和除浊度的影响,研究表明,ρPAFC是影响除藻和除浊度的重要因素。在最佳处理条件,即ρPAFC为20 mg/L,ρH2O2为6 mg/L,pH为7,搅拌时间为4 min,能使水体中藻细胞密度从9.4×107cells/L降至3.16×106cells/L,除藻率为96.6%,浊度降至0.70 NTU,除浊度率达93.0%。The process of algae removal and turbidity removal in eutrophication water was studied by means of orthogonal experimental design, using polyaluminum ferric chloride （PAFC） as flocculation reagent, and hydrogen peroxide as preoxidation reagent; the factors which had effect on the removal of algae and turbidity in the water mass, and the main relation of the factor of the orthogonal experiment had been obtained. The result showed that the ρPAFC had a great influence on the algae removal and turbidity removal. Under the optimum conditions including ρPAFC = 20 mg/L, ρH2O2 = 6 mg/L, pH = 7 and stirring time was 4 min, the algae cell densities in micropollution water had fallen from 9.4 × 107cells/L to 3.16 × 10^6cells/L, the rate of algae removal was up to 96.6% ; so the turbidity of the water had dropped to 0.70 NTU, and the rate of turbidity removal was 93.0%.

关 键 词：聚合氯化铝铁 除藻 微污染 正交实验 

分 类 号：X703.1[环境科学与工程—环境工程]