净水技术2024，Vol.43Issue(z2)：137-142,6.DOI:10.15890/j.cnki.jsjs.2024.s2.019
浮动湿地构建技术及其对再生水受纳水体水质的净化作用
Purification Effect of Bottom Aeration-Ecological Floating Wetland on the Water Quality of Reclaimed Water Receiving Bodies
摘要
Abstract
The comparative selection of three types of eco-floating wetland carrier fiber materials—polyester fiber,polypropylene fiber,and coconut shell fiber—was conducted,and the purification effect of eco-floating wetland technology on receiving water bodies with reclaimed water was examined.The results indicated that the strength of polyester fiber was 1.18 cN/dtex,which was higher than that of polypropylene fiber and coconut shell fiber;the elongation at break among the three fibers does not differ significantly.The contact angle of polyester fiber was 18.2°,indicating it more hydrophilic compared to polypropylene fiber and coconut shell fiber.Additionally,the rate and total amount of microbial attachment on polyester fiber were greater than those of the other two fibers,making it more suitable for use as an eco-floating bed carrier.Bottom aeration(aeration depth of 1.2 m)could significantly improve the removal effect of pollutants from the water body by the eco-floating wetland.Increased oxygenation was beneficial for removal of CODCr,ammonia nitrogen and TN,but had little effect on the removal of TP.The purification effect on receiving water bodies with reclaimed water indicates that the bottom oxygen supply-eco-floating wetland technology effectively removes the main pollutants from lake water,with the main water quality indicators meeting the Class Ⅳ water quality standards of Environmental Quality Standards for Surface Water(GB 3838-2002).关键词
浮动湿地/聚酯纤维/底部供氧/受纳水体/水质净化Key words
floating wetland/polyester fiber/bottom oxygen supply/receiving water body/water quality purification分类
资源环境引用本文复制引用
崔晓宇,赵海波,张志昊,白龙,汤德勤,赵进勇..浮动湿地构建技术及其对再生水受纳水体水质的净化作用[J].净水技术,2024,43(z2):137-142,6.基金项目
水利部重大科技项目"河湖生态环境复苏与系统修复关键技术研究与示范"(SKS-2022071) （SKS-2022071）
中国电力建设股份有限公司科技项目经费委托(KJ-2023-187) （KJ-2023-187）
