摘要
通过去除饮用水中铝的一系列生产试验 ,主要研究了混凝沉淀过程中浊度、水温、pH值等因素对沉淀水余铝的影响 ,提出除铝可以分为降低溶解铝和去除颗粒铝的两种途径。余浊和余铝在一定浓度范围内呈线性相关关系 ,此时除浊能同时有效去除颗粒铝。在不同温度下有不同的最佳 pH值 ,调节 pH值有利于降低溶解铝 ,增加铝的可去除性。在此基础上 ,对水厂生产运行提出了一些建议。
A series of full-scale experiments were made for studying mainly the effect of turbidity,water temperature,and pH value on aluminum removal in the process of coagulation/sedimentation.The tests show that aluminum removal can be divided into the reduction of dissolved aluminum and the removal of particulate aluminum.Residual turbidity has linear relation to residual aluminum within certain limits of concentration,and then removal of particulate aluminum can be achieved effectively while turbidity is removed.The optimal pH value varies with temperature,and adjustment of pH value is beneficial to the decrease of dissolved aluminum and increase of the potential removal of aluminum.On this basis some proposals have been offered for operation of water plant.
出处
《中国给水排水》
CAS
CSCD
北大核心
2001年第10期5-8,共4页
China Water & Wastewater
基金
国家自然科学基金资助项目 (5 97780 2 3)
黑龙江省自然科学基金资助项目 (E982 5 )
关键词
饮用水
除铝
混凝
沉淀
drinking water
aluminum removal
coagulation/sedimentation
