Changes of catabolic genes and microbial community structures during biodegradation of nonylphenol ethoxylates and nonylphenol in natural water microcosms
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چکیده
منابع مشابه
Uptake of nonylphenol and nonylphenol ethoxylates by crested wheatgrass.
Nonylphenol (NP) and other hydrophobic biodegradation intermediates of nonylphenol ethoxylate (NPE) surfactants have been identified in wastewater treatment biosolids. These biosolids often are land applied, but little is known regarding the potential uptake of biosolid-derived contaminants by plants. Hydroponic experiments, 11 to 14 weeks in duration, were conducted to examine the uptake and t...
متن کاملSeasonal changes in nonylphenol ethoxylates and their metabolites in water and sediment of urban river polluted by nonylphenol.
The concentrations of nonylphenol (NP), nonylphenol ethoxylates (NPnEOs: n = 1-15) and nonylphenoxy acetic acids (NPmECs: m = 1-10) in river water and sediment were determined seasonally at four sampling sites in the Kamo River, which is a typical urban river and was already known to be polluted by NP. In the water, the concentrations of NP, NPnEOs and NPmECs ranged from 0.13 to 3.65 microg/L, ...
متن کاملNonylphenol and nonylphenol ethoxylates in fish, sediment, and water from the Kalamazoo River, Michigan.
A survey measuring concentrations of nonylphenol (NP) and its ethoxylates (NPEs) in fish was performed in the Kalamazoo River, Michigan, USA, in 1999. Of 183 fish analyzed, 59% had no detectable NP or NPE. Detected concentrations were reported to range from 3.3 (limit of detection) to 29.1 ng NP/g wet weight. To further explore the means of exposure of NP and NPE in the fish, concentrations of ...
متن کاملEnvironmental Fate and Safety of Nonylphenol Ethoxylates
lkylphenol ethoxylates are nonA ionic surfactants widely used in many institutional and household cleaning products and industrial processes. They have been popular for their effectiveness, economy and ease of handling and formulating for more than 40 years. They function as emulsifiers, detergents, wetting agents and dispersants. One of the largest application areas for alkylphenol ethoxylates...
متن کاملBiodegradation of Nonylphenol Monopropoxyethoxylates
Aerobic biodegradation behavior of nonylphenol monopropoxyethoxylates was investigated in two tests with different inocula-sewage sludge and river water. Both primary biodegradation and formation of different biodegradation intermediates were studied. Primary biodegradation of nonylphenol monopropoxyethoxylates was relatively fast and complete with the sewage sludge as the inoculum. On the othe...
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ژورنال
عنوان ژورنال: Biochemical Engineering Journal
سال: 2008
ISSN: 1369-703X
DOI: 10.1016/j.bej.2007.09.015