摘要
对内电解技术在人工湿地中的应用进行了初步研究,通过静态实验对铁屑/炉渣、铁屑/粉煤灰、铁屑/活性炭组成的内电解基质进行了比选,确定铁屑/炉渣为最佳组合,其对COD、NH3-N、TP去除率高,对出水的pH值影响较小。通过单因素实验确定其最佳反应条件,即铁/炉渣投加比为1∶1,每100 mL废水投加量为20 g,反应时间60 min时,COD和TP的去除率分别达到40%和97%。
The internal-electrolysis technology used in constructed wetland was studied.The removal efficiency of iron/slag,iron/fly ash,and iron/active carbon were compared through static experiments.Iron/slag is the best substrate because of the highest removal efficiency of COD,NH3-N,TP and less influence on pH of effluent.The optimal parameters were obtained when the ratio of iron to slag was 1：1,the substrate dosage was 20 g per 100 milliliter wastewater,and the reaction time was 60 minutes,the removal efficiencies of COD and TP were up to 40% and 97%,respectively.
出处
《环境工程学报》
CAS
CSCD
北大核心
2011年第6期1301-1304,共4页
Chinese Journal of Environmental Engineering
基金
国家水体污染控制与治理科技重大专项(2009ZX07210-001-004)
关键词
人工湿地
内电解
基质
炉渣
粉煤灰
constructed wetland
internal-electrolysis
substrates
slag
fly ash
