壳聚糖絮凝剂对Cu2+的吸附性能
The Adsorbing Properties of the Chitosan as Flocculation on Cu2+ in Wastewater
研究了利用脱乙酰基壳聚糖絮凝剂絮凝除铜的方法.考察了氢氧化物、酸度、离子浓度、絮凝时间以及絮凝温度对去除率的影响。当pH=8时，用壳聚糖吸附铜离子，水样铜含量低于100mg/L时，除铜率在99%以上；即使铜离子浓度达到400mg/L，残液浓度液符合国家废水排放标准。用碱絮凝沉淀，pH=11时，除铜率达100%，耗碱量大，且不符合废水排放的酸度要求。还进一步探讨了壳聚糖絮凝除铜的机理。
环境污染、环境污染防治
铜废水处理壳聚糖絮凝剂去除率
张廷安,豆志河.壳聚糖絮凝剂对Cu2+的吸附性能[EB/OL].(2005-04-20)[2025-09-23].http://www.paper.edu.cn/releasepaper/content/200504-114.点此复制
Abstract: The method of removal Cu2+ from wastewater using chitosan as flocculants was described. The effects of hydroxid, pH, ion concentration of Cu2+, flocculating time and flocculating temperature were investigated respectively. When pH is 8 and the ion concentration of Cu2+ is not more than 100mg/L, the removal rate of Cu2+ is higher than 99%. Even when the ion concentration of Cu2+ is 400mg/L,the remainder ion concentrations are less than the drainage standard fixed by P.R. China. When pH is 11, the removal rate of Cu2+ reaches 100% with NaOH as flocculant, where the wastage of alkali is very large and the acidity dosen
copperwastewater treatmentchitosanflocculentremoval ratio
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