生物复合絮凝剂处理深圳湾污染水体的研究

深圳市西部海域近岸水体污染严重，水体发黑，淤泥沉积，气味恶臭，严重影响了海洋生态、周边居民生活质量与城市海岸线景观。采用高效环保的生物复合絮凝剂处理深圳近海污染水体。通过絮凝沉降技术，研究了复合絮凝剂对深圳湾近海污水处理的最佳絮凝、混凝条件，筛选了最佳絮凝剂配方及最佳浓度，结果表明壳聚糖乙酸溶液、聚合硫酸铁分别与海藻酸钠复合，终浓度为12—16ppm时处理近海污染水体效果最佳，同时可以有效抑制海洋有害弧茵。研究表明该生物复合絮凝剂可以有效处理近海污染水体。

Coastal sewage treatment in Shenzhen bay by biocomposites flocculation

The heavily polluted water of Shenzhen western coastal is black, sedimentary silt and bad smell. It has negative effect on o- cean ecology and life quality of surrounding residents and landscape of city coastline. In this research, the efficient and environmental biological composite flocculant was used to handle polluted water in Shenzhen western offshore Shenzhen bay. Among those floeculants, the final concentrations of chitosan and polymerize ferric sulfate compound combined with sodium alginate respectively between 12 - 16 ppm showed the best results. These biocomposites could remove the harmful marine vibrio and be used for coastal wastewater effective treatment.