纳米活性炭纤维修复富营养化景观水体的试验研究

摘要

纳米活性炭纤维具有很大的比表面积,其高度的亲和性能形成具有很强净化功能的生物膜,能吸附、吸收、截留水中溶解态和悬浮态污染物,将有机物最终转化为无机物.通过人工配水试验,研究纳米活性炭纤维在形成生物膜前后对景观水体中总氮、总磷、COD以及浊度的去除效果.结果表明,纳米活性炭纤维可以有效地去除富营养化景观水中各污染物.在试验开始阶段,对各污染物的去除率为:总氮:68.4%-57.4%;总磷:77.5%-76.7%;CODcr:68.1%-65.7%,都呈下降的趋势.生物膜达到稳定时对各污染的去除率为,总氮:65.6%-69.5%; CODcr:67.7%-67.9%;总磷:78.9%-79.4%.同时,整个过程显示,纳米活性炭纤维对污水浊度的去除始终保持很好的效果.%Nm activated carbon fiber have a very large specific surface area. The high degree of affinity can form a strong purification biological membrane. Adsorbs, absorption and intercept the water solubility and suspended state pollutants organism will eventually into organic inorganic. With the experiment by artificial, the change of TN 、TP 、COD and NTU reamovals before and after the process in the formation of biological membrane in landscape water was investigated. The result shows that Nm activated carbon fiber can effectively remove the contaminants. In the experiment begin early,for each pollutant the removal rate :TN :68.4％-57.4％ TP:77. 5％-76. 7％ CODer:68.1％-65.7％ ,are a trend of drop. Beings to achieve stability in the removal rate for TN:65.6％-69.5％;CODer:67.7％-67.9％ ;TP:78.9％-79.4％. At the same time, whole process display that Nm activated carbon fiber to the removal of turbidity keep good results.