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通过单因子试验和正交试验研究了无机聚铁盐絮凝剂与壳聚糖复配使用对海水的净化效果。结果表明:壳聚糖与聚合氯化铁的复合絮凝效果优于壳聚糖与聚合硫酸铁的;影响海水净化效果的最主要因素为聚合氯化铁投加量,其次是壳聚糖投加量,pH值无显著影响。当聚合氯化铁投加量为20 mg/L、壳聚糖投加量为4 mg/L、pH值为6~7时,复合絮凝剂对海水的净化效果最佳,对浊度和UV254的去除率分别为93.1%和35.7%。
The purifying effect of seawater was studied by single-factor experiment and orthogonal experiment with the composite of inorganic polyferric salt flocculant and chitosan. The results showed that the complex flocculation effect of chitosan and polymeric ferric chloride was better than that of chitosan and polymeric ferric sulphate. The main factors affecting the purification effect of seawater were the dosage of polymeric ferric chloride, followed by the addition of chitosan Amount, pH no significant effect. When the dosage of ferric chloride was 20 mg / L, the dosage of chitosan was 4 mg / L and the pH value was 6 ~ 7, the composite flocculant had the best purification effect on seawater. The turbidity and UV254 The removal rates were 93.1% and 35.7%, respectively.