摘要
利用羧甲基壳聚糖为絮凝剂,分别对蛋白核小球藻、水华微囊藻、斜生栅藻进行絮凝实验。结果表明:羧甲基壳聚糖对小球藻最佳絮凝条件为:p H=6,藻浓度为9.0×106个/m L,静置时间为15min,转速为30rpm/min,羧甲基壳聚糖用量为100mg/L;对水华微囊藻最佳絮凝条件为:p H<4,藻浓度为5.1×105个/m L,静置时间为15min,转速为180rpm/min,羧甲基壳聚糖用量为125mg/L;对斜生栅藻最佳絮凝条件为:p H=6,藻浓度为12.4×106个/m L,静置时间为15min,转速为80rpm/min,羧甲基壳聚糖用量为100mg/L。
In this paper, carboxymethyl chitosan was used as flocculant to flocculate Chlorella pyrenoidosa, Microcystisflos- aquae and Scenedesmusobliquus to observe their best flocculation condition. The results showed that the optimal flocculation condition to Chlorella pyrenoidosa were as follows: pH was 6. Algae concentration was 9. 0 Xl06ind/ml. Resting time was 15min. Rotation rate was 30rpm/min. The dosage of carboxymethyl chitosan was 100mg/l. The optimum flocculation condition to Microcystisflos - aquae were as follows : pH was less than 4. Algae concentration was 5. 1 x l〇5ind/ ml. Resting time was 15min. Rotation rate was 180rpm/min. The dosage of carboxymethyl chitosan was 125mg/l. The optimum flocculation condition to Scenedesmusobliquus were as follows :pH was 6. Algae concentration was 12. 4 x l〇6ind/ ml. Resting time was 15min. Rotation rate was 80rpm/min.The dosage of carboxymethyl chitosan wasl00mg/l.
作者
魏燕芳
王琼
WEI Yan - fang;WANG Qiong(Department of Environmental Science and Engineering, College of Chemical Engineering, Huaqiao University, Xiamen Fujian 361021, China)
出处
《环境科学导刊》
2016年第4期67-71,共5页
Environmental Science Survey
基金
福建省自然科学基金计划资助项目(2014J01049)
关键词
羧甲基壳聚糖
小球藻
水华微囊藻
斜生栅藻
絮凝实验
carboxymethyl chitosan
Chlorella pyrenoidosa
Microcystisflos - aquae
Scenedesmusobliquus
flocculation
