The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform

Zijian Wang - One of the best experts on this subject based on the ideXlab platform.

  • levels and spatial distribution of chlorophenols 2 4 Dichlorophenol 2 4 6 trichlorophenol and pentachlorophenol in surface water of china
    Chemosphere, 2008
    Co-Authors: Jijun Gao, Linghua Liu, Xiaoru Liu, Huaidong Zhou, Shengbiao Huang, Zijian Wang
    Abstract:

    The chlorophenol pollutants (CPs) have been reported to occur at relatively high concentrations in some Chinese waters. To map the distribution of CPs in the surface water throughout China, samples were collected from over 600 sites in the seven major watersheds and three drainage areas. The samples were analyzed for the representative CPs including 2,4-Dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol. In general, it was observed that 2,4-Dichlorophenol and 2,4,6-trichlorophenol were more frequently detected at higher concentrations in the rivers of North China compared with those of South China. High concentration sites of 2,4-Dichlorophenol and 2,4,6-trichlorophenol mainly Occurred in the Yellow River, Huaihe River, and Haihe River watersheds, while pentachlorophenol contamination mainly occurred in the Yangtze River watershed. The pentachlorophenol was the most ubiquitous CPs being detected in 85.4%) of samples (median = 50.0 ng l (- 1); range < 1.1 - 594.0 ng l (- 1)), 2,4-Dichlorophenol was detected in 51.3% (median = 5.0 ng l (- 1); range < 1.1 - 19960.0 ng l (- 1)) and the 2,4,6-trichlorophenol was detected in 54.4% of water samples (median =2.0 ng l (- 1), range < 1.4 - 28650.0 ng l (- 1)). The results of this investigation indicated that 2,4-Dichlorophenol and 2,4,6-trichlorophenol contaminations of Yellow River, Huaihe River, and Haihe River watersheds were of particular concern, while the pentachlorophenol contamination mainly occurred in the Yangtze River watershed. These results showed that CPs contamination in the surface water of China was similar to other places of the world. (c) 2007 Elsevier Ltd. All rights reserved.

  • Levels and spatial distribution of chlorophenols - 2,4-Dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol in surface water of China.
    Chemosphere, 2007
    Co-Authors: Jijun Gao, Linghua Liu, Xiaoru Liu, Huaidong Zhou, Shengbiao Huang, Zijian Wang
    Abstract:

    The chlorophenol pollutants (CPs) have been reported to occur at relatively high concentrations in some Chinese waters. To map the distribution of CPs in the surface water throughout China, samples were collected from over 600 sites in the seven major watersheds and three drainage areas. The samples were analyzed for the representative CPs including 2,4-Dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol. In general, it was observed that 2,4-Dichlorophenol and 2,4,6-trichlorophenol were more frequently detected at higher concentrations in the rivers of North China compared with those of South China. High concentration sites of 2,4-Dichlorophenol and 2,4,6-trichlorophenol mainly occurred in the Yellow River, Huaihe River, and Haihe River watersheds, while pentachlorophenol contamination mainly occurred in the Yangtze River watershed. The pentachlorophenol was the most ubiquitous CPs being detected in 85.4% of samples (median=50.0ngl(-1); range

Xue-kun Zhao - One of the best experts on this subject based on the ideXlab platform.

  • Sorption behavior of 2,4-Dichlorophenol on marine sediment
    Journal of colloid and interface science, 2003
    Co-Authors: Gui-peng Yang, Xue-kun Zhao
    Abstract:

    The sorption behavior of 2,4-Dichlorophenol on marine sediments treated by different methods was investigated systematically. The sorption of 2,4-Dichlorophenol on marine sediments was completed mainly via ion exchange and surface polar sorption. Both the Freundlich and Langmuir isotherms were fit for describing its sorption behavior. The sorption behavior of 2,4-Dichlorophenol was affected by various factors including aqueous salinity and temperature. The sorption amount of 2,4-Dichlorophenol on marine sediments increased with increasing ion strength, but decreased with increasing temperature.

Jijun Gao - One of the best experts on this subject based on the ideXlab platform.

  • levels and spatial distribution of chlorophenols 2 4 Dichlorophenol 2 4 6 trichlorophenol and pentachlorophenol in surface water of china
    Chemosphere, 2008
    Co-Authors: Jijun Gao, Linghua Liu, Xiaoru Liu, Huaidong Zhou, Shengbiao Huang, Zijian Wang
    Abstract:

    The chlorophenol pollutants (CPs) have been reported to occur at relatively high concentrations in some Chinese waters. To map the distribution of CPs in the surface water throughout China, samples were collected from over 600 sites in the seven major watersheds and three drainage areas. The samples were analyzed for the representative CPs including 2,4-Dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol. In general, it was observed that 2,4-Dichlorophenol and 2,4,6-trichlorophenol were more frequently detected at higher concentrations in the rivers of North China compared with those of South China. High concentration sites of 2,4-Dichlorophenol and 2,4,6-trichlorophenol mainly Occurred in the Yellow River, Huaihe River, and Haihe River watersheds, while pentachlorophenol contamination mainly occurred in the Yangtze River watershed. The pentachlorophenol was the most ubiquitous CPs being detected in 85.4%) of samples (median = 50.0 ng l (- 1); range < 1.1 - 594.0 ng l (- 1)), 2,4-Dichlorophenol was detected in 51.3% (median = 5.0 ng l (- 1); range < 1.1 - 19960.0 ng l (- 1)) and the 2,4,6-trichlorophenol was detected in 54.4% of water samples (median =2.0 ng l (- 1), range < 1.4 - 28650.0 ng l (- 1)). The results of this investigation indicated that 2,4-Dichlorophenol and 2,4,6-trichlorophenol contaminations of Yellow River, Huaihe River, and Haihe River watersheds were of particular concern, while the pentachlorophenol contamination mainly occurred in the Yangtze River watershed. These results showed that CPs contamination in the surface water of China was similar to other places of the world. (c) 2007 Elsevier Ltd. All rights reserved.

  • Levels and spatial distribution of chlorophenols - 2,4-Dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol in surface water of China.
    Chemosphere, 2007
    Co-Authors: Jijun Gao, Linghua Liu, Xiaoru Liu, Huaidong Zhou, Shengbiao Huang, Zijian Wang
    Abstract:

    The chlorophenol pollutants (CPs) have been reported to occur at relatively high concentrations in some Chinese waters. To map the distribution of CPs in the surface water throughout China, samples were collected from over 600 sites in the seven major watersheds and three drainage areas. The samples were analyzed for the representative CPs including 2,4-Dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol. In general, it was observed that 2,4-Dichlorophenol and 2,4,6-trichlorophenol were more frequently detected at higher concentrations in the rivers of North China compared with those of South China. High concentration sites of 2,4-Dichlorophenol and 2,4,6-trichlorophenol mainly occurred in the Yellow River, Huaihe River, and Haihe River watersheds, while pentachlorophenol contamination mainly occurred in the Yangtze River watershed. The pentachlorophenol was the most ubiquitous CPs being detected in 85.4% of samples (median=50.0ngl(-1); range

Gui-peng Yang - One of the best experts on this subject based on the ideXlab platform.

  • Sorption behavior of 2,4-Dichlorophenol on marine sediment
    Journal of colloid and interface science, 2003
    Co-Authors: Gui-peng Yang, Xue-kun Zhao
    Abstract:

    The sorption behavior of 2,4-Dichlorophenol on marine sediments treated by different methods was investigated systematically. The sorption of 2,4-Dichlorophenol on marine sediments was completed mainly via ion exchange and surface polar sorption. Both the Freundlich and Langmuir isotherms were fit for describing its sorption behavior. The sorption behavior of 2,4-Dichlorophenol was affected by various factors including aqueous salinity and temperature. The sorption amount of 2,4-Dichlorophenol on marine sediments increased with increasing ion strength, but decreased with increasing temperature.

Agenor Furigo - One of the best experts on this subject based on the ideXlab platform.

  • obtaining soybean peroxidase from soybean hulls and its application for detoxification of 2 4 Dichlorophenol contaminated water
    Journal of environmental chemical engineering, 2020
    Co-Authors: Mylena Fernandes, Diego Hoefling Souza, Rosana Oliveira Henriques, Mauricio Vicente Alves, Everton Skoronski, Agenor Furigo
    Abstract:

    Abstract This work aimed to evaluate the performance of soybean peroxidase on 2,4-Dichlorophenol bioconversion. Soybean peroxidase was obtained from transgenic cultivar and purified to homogeneity followed by enzymatic characterisation using pyrogallol as standard substrate and applied to 2,4-Dichlorophenol bioconversion. The results demonstrated that soybean peroxidase optimal conditions of pH and temperature were 6.5 and 71.6°C using pyrogallol as substrate. Regarding the 2,4-Dichlorophenol bioconversion, removal of 80 % and 96 % was achieved in 1 and 24 h reaction time, respectively, using the purified enzyme. In comparison, the use of soybean hulls bioconverted only 30 % 2,4-Dichlorophenol in 24 h. The toxicity effect of the treated water was evaluated using Lactuca sativa L. var. Buttercrunch as bioindicator. The decreasing in the toxicity after the treatment leads to 100 % germination and 54 % seed root elongation assessments. Overall, we conclude that the studied enzyme and the presented methodology is of interest for soybean hulls lower-value commodity valorisation from a transgenic cultivar.