CaO_2同步氧化Fe(Ⅱ)除磷的研究  

Research on CaO_2 synchronously oxidation Fe(Ⅱ) for phosphate removal

作　　者：徐垚[1] 李大鹏[1] 韩菲尔 Xu Yao;Li Dapeng;Han Feier(School of Environmental Science and Engineering,Suzhou University of Science and Technology)

机构地区：[1]苏州科技大学环境科学与工程学院,江苏苏州215009

出　　处：《工业水处理》2018年第3期21-24,共4页Industrial Water Treatment

基　　金：国家自然科学基金项目(51278523);江苏省"六大人才高峰"项目(2013-JNHB-022);水处理技术与材料协同创新中心项目

摘　　要：研究了单独Fe(Ⅱ)、单独CaO_2以及CaO_2同步氧化Fe(Ⅱ)对人工模拟废水中磷的去除效果。结果表明:Fe(Ⅱ)与磷酸盐反应生成的物质颗粒细小,是导致Fe(Ⅱ)除磷效果不佳的重要原因;CaO_2同步氧化Fe(Ⅱ)对磷的去除率显著提高。50 mg/L CaO_2同步氧化Fe(Ⅱ)体系90 min后对磷去除率为82.38%,远大于相同时间内单独Fe(Ⅱ)对磷去除率(9.80%)与单独CaO_2对磷去除率(24.24%)之和(34.04%)。The research on the removing effects of individual ferrous ions,individual calcium peroxide and CaO2 synchronously oxided Fe（Ⅱ） on the removal of phosphorus from artificially simulated wastewater has been implemented.The results show that the insoluble particles formed by the reaction of Fe（Ⅱ） with phosphate are tiny,which is the main cause for the poor phosphorus removing effect. The removing rate of phosphorus by CaO2 synchronously oxidation Fe（Ⅱ） is significantly improved. After 50 mg/L of CaO2 has synchronously oxided Fe（Ⅱ） for 90 min,the removing rate of phosphorus is 82.38%,which is far higher than the summation of the phosphorus removing rates（34.04%）by individual Fe（Ⅱ）（9.80%）,plus the phosphorus removing rate by individual CaO2（24.24%）.

关 键 词：过氧化钙 亚铁离子 磷酸盐 粒径分布 

分 类 号：X703[环境科学与工程—环境工程]