摘要
采用高岭土、纳米二氧化硅和碳酸钙与有机粘合剂(聚乙烯醇)的混合物制作陶瓷膜,干压成型的膜在温度为1 030℃的马弗炉中烧结6 h;以过滤腐殖酸和校园天然水来评价陶瓷膜和聚偏氟乙烯有机膜的性能。通过SUVA、DOC、相对分子质量分布和三维荧光谱可以得知,陶瓷膜和有机膜对腐殖酸有明显的去除效果;但对于天然水中有机物的去除,2种膜性能都较差;对于同样的原水,有机膜的污染比陶瓷膜的严重。
Ceramic membrane was fabricated by mixing kaolin,Nano-SiO2 and calcium carbonate with organic binder（polyvinyl alcohol） by the uniaxial dry compaction method.The green circle membrane was sintered at 1 030 ℃ in a muffle furnace.The performance of ceramic membrane and Poly（vinylidene fluoride） organic membrane was evaluated with filtered humic acid and natural water from a river in shanghai as feed water.Humic acid could be removed effectively by both the ceramic membrane and organic membrane,which were demonstrated by the results obtained from the SUVA,DOC,molecular weight distribution and 3-dimensional excitation-emission matrix（EEM） fluorescence spectrum.However,for the organic matter removal,both membranes exhibited poor performance.In addition,for the same raw water,the fouling of organic membrane was heavier than that of ceramic membrane.
出处
《水处理技术》
CAS
CSCD
北大核心
2015年第4期20-24,34,共6页
Technology of Water Treatment
基金
国家自然科学基金(51178322)
关键词
陶瓷膜
有机膜
腐殖酸
天然水
ceramic membrane
organic membrane
humic acid
natural water
