Anaerobic degradation of nonylphenol mono- and diethoxylates in digestor sludge, landfilled municipal solid waste, and landfilled sludge

被引:74
作者
Ejlertsson, J [1 ]
Nilsson, ML
Kylin, H
Bergman, Å
Karlson, L
Öquist, M
Svensson, BH
机构
[1] Linkoping Univ, Dept Water & Environm Studies, SE-58183 Linkoping, Sweden
[2] Swedish Univ Agr Sci, Dept Environm Assessment, SE-75007 Uppsala, Sweden
[3] Stockholm Univ, Wallenberg Lab, Dept Environm Chem, SE-10691 Stockholm, Sweden
[4] Akzo Nobel Surface Chem AB, SE-44485 Stenungsund, Sweden
关键词
D O I
10.1021/es980669u
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The aim of this study was to investigate the extent to which anaerobic digestor sludge, landfilled sludge, and landfilled municipal solid waste (MSW) degrade NPEOs under methanogenic conditions. NPEO1 and NPEO2 (NPEO1-2), used in;a mixture, were chosen as model compounds. Anaerobic experimental bottles were amended with 100% digestor sludge at three different concentrations of NPEO1-2: 2, 60, and 308 mg L-1. [U-C-14]-NPEO1-2 was used to detect any possible decomposition of the aromatic moiety of the NPEO1-2. All inoculates used degraded NPEO1-2 at 2 mg L-1, with nonylphenol (NP) forming the ultimate degradation product. The NP formed was not further degraded, and the incubations with labeled NPEO showed that the aromatic structure remained intact. Both landfill inoculates also transformed NPEO1-2 at 60 mg L-1. CH4 production was temporarily hampered in bottles with MSW landfill inoculum at 60 and 308 mg L-1. With 2 mg L-1 of NPEO, CH4 production closely followed that in the controls. Both NP and NPEO1-2 interacted with the organic matter which resulted in sorption to the solid phase.
引用
收藏
页码:301 / 306
页数:6
相关论文
共 23 条