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《Environmental Chemistry》 1997-06
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PREPARATION AND FLOCCULATION OF POLYSILICATE-METALS (PSMS) FLOCCULANTS

Luan Zhaokun Song Yonghui (Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, State Key Laboratory of Environmental Aquatic Chemistry, Beijing, 100085)  
Some conditional experiments for the preparation of polysilicate-metal salts (PSMS) and its coagulation and flocculation for removal of turbidity and humics were condutcted and discussed. Preliminary results show that the preparation of PSMS floccu-lants are relatively simple, but it may be necessary to master some operative technique. The PSMS products with low concentration of metal ions and low content of SiO2 would be stable for longer time and can greatly improve and raise the coagulation and flocculation efficiency for removal of turbidity and humics, when compared to traditional coagulants. The PSMS flocculants appear to be appropriate for the preparation in the site of the water treatment.
【Fund】: 国家自然科学基金资助项目(批准号:(?)77280)
【CateGory Index】: TQ085.42
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