生态与农村环境学报2018，Vol.34Issue(2)：153-160,8.DOI:10.11934/j.issn.1673-4831.2018.02.008
置入式生态滤床对低温季节重污染河水水质的改善效果
Effects of Inserted Ecological Filter Bed Improving Water Quality of Heavily Polluted River in Low-Temperature Seasons
摘要
Abstract
On the basis of the traditional system of horizontal subsurface flow constructed wetland(SSFW), a new sys-tem,namely,inserted ecological filter bed(IEF),was developed. Comparison was made between the two systems in pol-lutant removing effect in different seasons. Results show that IEF was higher than SSFW in pollutant removing rate and re-moved total nitrogen(TN),ammonia nitrogen(NH3-N), total phosphorus(TP)and permanganate index(CODMn)by 63.6%,78.4%,64.7% and 51.9%, respectively, on average, during the entire experiment period, which was 13.1%, 6.9%,12.1% and 7.3%,respectively,higher than what the latter did. Temperature was an important factor affecting pol-lutant removing rate of SSFW. The rate dropped significantly during the fourth season(Oct. to Dec.)of a year when tem-perature is low,while IEF still maintained a relative high pollutant removing efficiency in winter,removing TN,NH3-N, TP and CODMnby 57.9%,63.0%, 58.7% and 51.8%, respectively, which was 12.8%, 11.1%, 10.2% and 7.2%, higher than what SSFW did,respectively.All the findings in this experiment indicate that IEF can solve the problem of SS-FW being low in pollutant removing efficiency in the low-temperature season, and has certain important significance in guiding purification of heavily polluted rivers.关键词
置入式生态滤床/潜流人工湿地/水质/温度Key words
inserted ecological filter bed/subsurface flow constructed wetland/water quality/temperature分类
资源环境引用本文复制引用
刘福兴,杨林章,王俊力,邹国燕..置入式生态滤床对低温季节重污染河水水质的改善效果[J].生态与农村环境学报,2018,34(2):153-160,8.基金项目
国家水体污染控制与治理科技重大专项(2017ZX07203-005) （2017ZX07203-005）
