赤泥复合剂絮凝处理太湖水华藻与海洋赤潮藻
Algae flocculation in water bloom and red tide usingred mud amelioration
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摘要: 研究了一种新型赤泥复合剂对太湖夏季水华原水、实验室培养海洋赤潮藻及模拟海水的絮凝除藻降浊性能。结果表明，赤泥复合剂具有良好的除藻降浊效果，对太湖水华藻去除率为97.3%，原水浊度去除率为95%；对海洋小球藻和三角褐指藻2种赤潮藻去除率分别高达99.1%和98.9%；对2种模拟海水的最高除浊率分别为96.3%和95.3%，其剩余浊度均低于4 NTU，从而为治理淡水水华与海洋赤潮提供一种新技术，同时为赤泥综合利用提供一种新途径。Abstract: The removal of algal cells and turbidity from the raw water of Taihu Lake， the laboratory culture of marine algae and synthetic seawater using a novel red mud amelioration were studied. The results showed that excellent effects on algae and turbidity removal were achieved. For the raw water of Taihu Lake， 97.3% of freshwater algae and 95% of turbidity were removed. The removal efficiency of marine Chlorella sp. and Phaeodactylum tricornutum Bohlin from the laboratory culture was 99.1% and 98.9%， respectively. The 96.3% and 95.3% the of turbidity was removed from the two kinds of synthetic seawater and the residual turbidity was less than 4 NTU. Therefore， the red mud amelioration supplies a new method for freshwater algal bloom and seawater red tide mitigation and a new way for the multipurpose utilization of red mud.
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Key words:
- red mud /
- water bloom /
- red tide /
- flocculation /
- algal removal
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