Decontamination of Landfill Leachate by Soil Infiltration

作     者：M.H.WONG K.C.LEUNG 

作者机构：Department of BiologyHong Kong Baptist CollegeKowloonHong Kong Department of BiologyThe Chinese University of Hong KongShatinHong Kong 

出 版 物：《Biomedical and Environmental Sciences》 (生物医学与环境科学（英文版）)

年 卷 期：1989年第2卷第4期

页      面：341-357页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 1004[医学-公共卫生与预防医学(可授医学、理学学位)] 1001[医学-基础医学(可授医学、理学学位)] 10[医学] 

主　　题：In 

摘      要：A soil column study was conducted to evaluate the efficiency of soil to attenuate pollutants in landfill *** was found that more than 60% of the initial alkalinity,COD,and total nitrogen was removed after the leachate had percolated through the soil *** effi- ciencies were observed for the removal of dissolved cations,ammonia nitrogen,and nitrate *** previously percolated leachate was recirculated through the soil column,sig- nificant removal(93.6%)of ammonia nitrogen was ***,a further reduction in COD,total nitrogen,nitrate nitrogen,and potassium was *** tests of seed germi- nation and root growth of Brassica chinensis were performed to compare the phytotoxicities of untreated,percolated,and recirculated *** phytotoxicity was reduced by both treatments,with the greatest detoxification observed in the leachate recirculation *** values ofpH and Olsen phosphorus were significantly reduced(P0.01)in the treated column *** significant increases(P0.05)in electrical conductivity(EC),various forms of nitrogen,exchangeable sodium percentage(ESP),potassium,magnesium,zinc,and iron were ***,ESP,potassium,magnesium,sodium,iron,and various forms of nitrogen accu- mulated at the soil surface(10 cm).On the other hand,manganese was deposited at 20 to 50 cm below the soil surface of the treated column.1989 Academic ***.