Biological treatment of nutrients from municipal wastewater with an aerated constructed wetland
A constructed wetland was designed to remove BOD together with total nitrogen(T-N) from municipal wastewater.The designed wetland was composed of the aerobic tank and anaerobic/anoxic one which was connected in series immediately after the aerobic one.and could treat 100 m3 raw municipal wastewater every day.Successful biological oxidation and nitfificafion could be obtained at the aerobic tank.Less than 80％of BOD5 and 30.5％of T-N was removed at the aerobic tank,and more than 96％of the organic nitrogen and ammonia nitrogen were nitrified Successfully into nitrate nitrogen.Which is indicafive of the SUCCESSful biological nitrification.Additional removal of BOD5 and T-N could be obtained at the anaembic/anoxic tank of the constructed wetland.About 57％of the remaining BOD5 was removed at the anaerobic/anoxic tank.More than 74％of the remaining T-N was denitrified.and the average conCEntration of T-N at the final effluent was 6.9 mg/L.The maximum available capacity for nutrient uptake in plants was far less(of the order of 5％) than the loading rate of nutrients to the constructed wetland.
Aerated constructed wetland Municipal wastewaters Nutrients Biological nitrification
Dul-Sun KIM Jae-Suk SHIN Sung-Jin KIMAND Dong-Keun LEE
Dept.of Chemical Engineering，Environmental Biotechnology National Core Research Center,Environmental and Regional Development Institute，BK21 Graduate Education Program for Environmental Core Technology，GRETEC，Korea Gyeongsang National University
国际会议
西安
英文
547-550
2008-05-15（万方平台首次上网日期，不代表论文的发表时间）