Adsorption and degradation of triazophos, chlorpyrifos and their main hydrolytic metabolites in paddy soil from Chaohu Lake, China

Liang, Bin; Yang, Chengli; Gong, Ming; Zhao, Yanbing; Zhang, Jun; Zhu, Changliang; Jiang, Jiandong; Li, Shunpeng

doi:10.1016/j.jenvman.2011.04.009

Cited by 70 publications

(42 citation statements)

References 30 publications

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“…The available literature also suggests that higher temperature causes more adsorption of organophosphorus pesticides in soil (Ten Hulscher and Cornelissen 1996, ElShafei 2009). The K f values obtained in the study (2.57-9.76) agree with those reported in the literature (Zhu et al 2010, Liang et al 2011. Effect of soil properties on adsorption.…”

Section: Resultssupporting

confidence: 89%

“…(Tomlin 2009). The solubility of the pesticide varies from 30 to 40 mg/L in water with reported half-life varying from 9 to 22 days in soil (Liang et al 2011). Among various pesticides used in agriculture in India, triazophos occupies 10 th position with total annual consumption of 1164 metric tonne (Bhushan et al 2013).…”

mentioning

confidence: 99%

“…Adsorption-desorption processes help us in understanding the mechanism and extent of its movement through soil and water bodies. Very few studies related to sorption behaviour of triazophos in soil are available (Zhu et al 2010, Liang et al 2011. No study related to effect of temperature on sorption behaviour of triazophos on Indian soils of Punjab origin, which are characterized by low organic matter and clay content, is available.…”

mentioning

confidence: 99%

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Effect of temperature on adsorption-desorption behaviour of triazophos in Indian soils

Rani

Sud

2015

Plant Soil Environ.

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The present study investigated the adsorption-desorption behaviour of triazophos on Indian soils at 10, 20 and 40°C using batch equilibrium technique. Results revealed that adsorption isotherms were explained better by Freundlich model and adsorption coefficient (K f ) decreased with increase in temperature indicating that adsorption was affected strongly by temperature. Moreover thermodynamic analysis showed that triazophos adsorption onto soil was spontaneous, exothermic and might have occurred through chemisorptions, hydrogen bonding or ligand-exchange interactions. Desorption results depicted that nearly 90% of the pesticide amount adsorbed by soil was retained by it at 10°C and the amount decreased with increase in temperature. Thus, the pesticide has a potential to contaminate surface and ground water at higher temperature due to weak adsorption on tested soils and release of more adsorbed pesticide during desorption with water. At temperature below 20°C, pesticide became almost immobile and therefore soil remediation may be required. The study highlights the importance of temperature in regulating the application of triazophos in soil.

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Section: Resultssupporting

confidence: 89%

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confidence: 99%

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confidence: 99%

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Effect of temperature on adsorption-desorption behaviour of triazophos in Indian soils

Rani

Sud

2015

Plant Soil Environ.

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“…Although there are numerous reports about the process of adsorption of pesticides in soils 24,[27][28][29][30][31] , there are no studies about the behavior of Captan and only few studies have investigated the behavior of Thiram in natural soils; these found that the adsorption constant Kd increases with increasing organic carbon content 11,32 Therefore our results are in agreement with the adsorption of Captan and Thiram, which increased when Koc increased with biosolid matter.…”

Section: Freundlich Isothermssupporting

confidence: 86%

Adsorption of Fungicides in Chilean Soils Incubated With Biosolids

Copaja

Bravo

Muñoz

2012

J. Chil. Chem. Soc.

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The efficiency of the adsorption process of the fungicides Captan and Thiram was studied in four Chilean soils from the VI [O´Higgins, (HGS) The values of parameters Kf and n from the Freundlich equation indicated an increase in the adsorption of fungicides incubated with biosolids (1% and 10%) with respect to natural soil. A high Kf value (12.1) for DIG-Thiram and a lower Kf value (4.3) for MAO-Captan interaction were observed for natural soils, while in soils incubated with biosolids (10%) the greatest value was (20.3) for DIG-Thiram and the lowest Kf value (10.2) for MAO-Captan. In general the high Kf values for Captan and Thiram were correlated with organic carbon content in the natural and incubated soils, except for the interaction THL-Thiram, in which inorganic compounds of soils (clay) were dominant.The distribution constant between solid-liquid phases (Kd) increased in soils incubated with biosolids; the magnitude of this constant was more significant with Thiram. The same behavior was observed for the constant related to organic carbon constants (Koc).The results of this work confirm that amending soils with biosolids is beneficial for immobilizing fungicides and helps prevent the percolation of Captan and Thiram through the soil profile and into groundwater

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“…Compared to TCP, chlorpyrifos was detected having shorter half-life in soil inoculated with Diaphorobacter sp. GS-1 which was capable of degradating both of them (Liang et al 2011). However, it was also found that the photodegradation rate of TCP in aqueous solution was higher than that of chlorpyrifos at 313 nm, pH 7, 25 • C (Dilling et al 1984).…”

Section: Dynamics Of Chlorpyrifos and Tcp In The Water Of Scirpus Valmentioning

confidence: 93%

Variation Characteristics of Chlorpyrifos in Nonsterile Wetland Plant Hydroponic System

Wang

Zhou

Zhang

et al. 2013

International Journal of Phytoremediation

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Six wetland plants were investigated for their effect on the degradation characteristics of chlorpyrifos in nonsterile hydroponic system at constant temperature of 28 • C. The results showed that the removal rates of chlorpyrifos in the water of plant systems were 1.26-5.56% higher than that in the control without plants. Scirpus validus and Typha angustifolia were better than other hygrophytes in elimination of chlorpyrifos. The removal rates of the two systems were up to 88%. Plants of acaulescent group had an advantage over caulescent group in removing chlorpyrifos. Phytoaccumulation of chlorpyrifos was observed, and the order of chlorpyrifos concentration in different plant tissues was root > stem > leaf. It was also found that chlorpyrifos and its metabolite TCP decreased rapidly at the initial step of the experiment.

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Adsorption and degradation of triazophos, chlorpyrifos and their main hydrolytic metabolites in paddy soil from Chaohu Lake, China

Cited by 70 publications

References 30 publications

Effect of temperature on adsorption-desorption behaviour of triazophos in Indian soils

Effect of temperature on adsorption-desorption behaviour of triazophos in Indian soils

Adsorption of Fungicides in Chilean Soils Incubated With Biosolids

Variation Characteristics of Chlorpyrifos in Nonsterile Wetland Plant Hydroponic System

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