摘要
研究了壬基酚(NP)类内分泌干扰物在土壤体系和添加污水处理厂剩余污泥的土壤体系中的降解行为.结果表明,NP、壬基酚单氧乙烯醚(NPEO1)、壬基酚二氧乙烯醚(NPEO2)在土壤中的降解遵循一级动力学方程,其降解速率随温度升高而升高.30℃时,初始浓度分别为100、50和100 mg.kg-1的NP、NPEO1和NPEO2可在45 d内完全降解.相同条件下,土壤中NP的降解速率大于NPEO1和NPEO2.体系中添加污泥促进了NPEO1和NPEO2的降解,同时抑制了NP的降解.
Biodegradation of nonylphenolic estrogens in soil and sludge-amended soil were investigated.Biodegradations of nonylphenol（NP）,nonylphenol monoethoxylate（NPEO1） and nonylphenol diethoxylates（NPEO2） followed the first-order kinetics,and the degradation rates were enhanced when the temperature was increased.Spiked NP,NPEO1 and NPEO2（with the concentration of 100,50 and 100（mg·kg^-1）,respectively） could be degraded completely in 45 days at the temperature of 30℃.NP presented a higher degradation rates in soil than NPEO1 and NPEO2 under the same condition.The amended sludge enhanced the biodegradation of NPEO1 and NPEO2 in soil,while it inhibited that of NP.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2008年第4期869-873,共5页
Environmental Science
基金
国家自然科学基金项目(50578153,50525824)
关键词
壬基酚
壬基酚聚氧乙烯醚
土壤
降解
nonylphenol
nonylphenol polyethoxylate
soil
biodegradation
