摘要
利用粘土类矿物因具有独特的层状结构而表现出良好的吸附和离子交换性能的特点,对城市污水进行絮凝吸附强化处理试验,改善城市污水的处理效率,结果表明:在混凝剂最佳投量并添加粘土吸附剂(铁质粘土)时,COD去除率可提高20%,浊度去除率略有增加;如用粘土吸附剂取代部分混凝剂,既可大大降低原水的有机负荷,又可减少混凝剂的投加量,减少运行费,为此粘土吸附剂对城市污水具有明显的强化一级处理效果.
According to the characteristics of the clay mineral which perform the good adsorption efficiency and the capability of ion exchange owing to its special storey structure,we conduct the experiment of enhancing the flocculation adsorption to increase the treatment efficiency for raw wastewater.The research results indicate that the removal efficiency of COD can be improved by 20 %,and the removal efficiency of some increment can also be slightly improved.When we feed the best dose appending some clay adsorbent(iron clay).If replacing some of coagulant with clay adsorbent,it is feasible to decrease organic loading of raw wastewater,and reduce the dose of coagulant,and also expenditure for operation.We can conclude that the clay adsorbent has the obvious effect on enhancing the first treatment for raw wastewater.
出处
《南华大学学报（自然科学版）》
2005年第1期32-34,共3页
Journal of University of South China：Science and Technology
基金
湖南省教育厅基金资助项目(4-02-JY-02C378)
南华大学科研基金资助项目(5-01-XJ-018)
