Biological co-metabolism is an economical and efficient technique for treating refractory organic matter, in recent years, it has been widely used the treatment of chlorophenol-containing wastewater. It found that many conditions affect bio efficiency, such as carbon source type, content, microorganism types, environmental factors. The concentration experiment showed when dosage ratio sodium ac...

2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) has been identified as a toxic contaminant of chlorophenols and related hydrocarbons that are widely used in agriculture and industry. It has been implicated in various diseases, including human cases of chloracne (1) and porphyria cutanea tarda (2) and in chick edema (3). Its teratogenicity has been documented in rats (4) and mice (5). Monkeys fed tox...

Introduction Although atmospheric deposition is generally the main source for PCDD/F contamination of food chains, other sources can be important at local and regional scales. The former production and use of chlorinated pesticides, such as chlorophenols (CP), is recognized as an important historical source of PCDD/F that has resulted in numerous hot spot sites. Because of strong bioaccumulatio...

Hairy root cultures are shown to be suitable experimental systems to screen higher plants for tolerance to various inorganic and organic pollutants, and for determining the role of the root matrix in the uptake and further metabolism of contaminants. A number of clones were obtained by infection of carrot tissues with Agrobacterium rhizogenes and two (the fastest and the slowest growing root cl...

The fungicidal activity of pentachlorophenol and its derivatives against 16 species of fungi representing 14 genera was tested. In relation to pentachlorophenol, no increase in fungistatic activity was found for pentachloroanisole, pentachloronitrobenzene, hexachlorobenzene, pentachlorophenyl acetate, o- and p-chloranil, the three isomeric chlorophenols, 2,6-dichlorophenol, the three isomeric t...

The technical chlorophenols and products produced from them, such as the herbicide 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) have been found to contain chlorodibenzo-pdioxins such as 2,3,7,8-tetrachlorodibenzo-pdioxin (TC-DD). TCDD and other chlorodibenzo-p-dioxins are among the most toxic compounds known, and have been implicated in outbreaks of chloracne among chemical workers (1). Hepatic ...