Effects of pH and Eh on release of nitrogen and phosphorus from sediments of West Lake     

胡勤海  朱荫湄  宋静  李震宇  温军杰 《Journal of Zhejiang University. Science. B》2003,(3)

INTRODUCTIONAsasinkandaninnersourceofnutrients,sedimentsplayanimportantroleinlakeeutroph ication.TheeutrophicationstatusofWestLakeisstillcriticalinrecentyearsevenaftermostpollutionsourcesaroundWestLakehavebeencontrolled(Peietal.,1998) ,mainlythroughtherel…  相似文献   

Effects of pH and Eh on release of nitrogen and phosphorus from sediments of West Lake   总被引：1，自引：0，他引：1  

胡勤海  朱荫湄  宋静  李震宇  温军杰 《浙江大学学报(A卷英文版)》2003,4(3)

The effects of pH and Eh on release of nitrogen and phosphorus from sediments of West Lake under different conditions were investigated by simulation test. Results showed that the net flux of NH4+-N release from sediments increased with pH, but NO3--N showed negative-going release at all tested pH levels. The net flux of NH4+-N release from sediments was higher under anaerobic or aerobic condition of the overlying water, but only under aerobic condition would net release of NO3--N occur. It was also shown that phosphorus released was mainly in its inorganic form, higher pH and anaerobic conditions of overlying water greatly stimulated release of phosphorus. In situ measurement at several West Lake locations indicated that sediment resuspension induced by boat propeller stimulated nutrients release from sediment into overlying water.  相似文献   

地下水MTBE的污染及生物降解技术研究进展   总被引：1，自引：0，他引：1  

吕路明  朱妙军  胡勤海 《科技通报》2008,24(5)

甲基叔丁基醚(MTBE)被广泛用作汽油添加剂.因此其通过各种途径进入环境的数量不断增加;由于MTBE水溶性较强,在地下水中扩散速度很快,可在地下水中造成持久性的危害,对地下水构成了潜在的污染;而MTBE具有人体可疑致癌性,因此,研究MTBE的环境污染问题及降解修复技术具有重要的现实意义.本文综述了国外有关地下水中MTBE的监测调查结果及污染状况,对MTBE的微生物-植物等生物降解技术研究进展进行了归纳,为国内开展MTBE的污染防治研究及指导MTBE的安全使用提供理论依据.  相似文献