Bentazone is one of the toxic insecticides used to control forest tent caterpillar moths, boll weevils, gypsy moths, and other types of moths in various field crops. We report the efficacy of biochar prepared from the Azardirachta Indica waste biomass as adsorbent for removal of Bentazone. Biochar material was prepared by pyrolysis process under limited oxygen conditions. Biochar material was characterized by proximate and ultimate analysis, SEM analysis, FTIR analysis and TG/DTA analyses. The Bentazone adsorption capacity by biochar from aqueous solutions was assessed. Effect of time, adsorbent dosage, insecticide concentration and pH on the adsorption characteristics of the biochar were evaluated. Adsorption parameters were obtained at equilibrium contact time of 150 min, with biochar dosage of 0.5 g at pH 8. From the optimization studies, desirability of 0.952 was obtained with response (adsorption uptake) of 79.40 mg/g, for initial concentration of insecticide (50 mg/L), adsorbent dosage (0.448 g), time 30.0 min and pH 2. The adsorption isotherm data for the removal of Bentazone fitted well with the Freundlich isotherm. This study indicates that the biochar produced from the bark of Azardirachta Indica biomass could be employed as a potential adsorbent for removal of synthetic organic pollutants from the water streams.

中文翻译：

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生物炭在从流域系统中去除有机农药Bentazone的功效。

Bentazone是一种有毒杀虫剂，用于控制各种大田作物中的森林帐篷毛毛虫蛾，铃bo，吉普赛蛾和其他类型的蛾。我们报告了由印度苦zar废生物质制备的生物炭作为吸附剂去除Bentazone的功效。生物炭材料是在有限的氧气条件下通过热解工艺制备的。生物炭材料的特征是通过近距离和最终分析，SEM分析，FTIR分析和TG / DTA分析来表征。评估了生物炭从水溶液中对戊二酮的吸附能力。评估了时间，吸附剂量，杀虫剂浓度和pH值对生物炭吸附特性的影响。在平衡接触时间为150分钟，pH为8的生物炭剂量为0.5 g的条件下获得了吸附参数。对于杀虫剂的初始浓度（50 mg / L），吸附剂剂量（0.448 g），时间30.0 min和pH 2，对于响应（吸附吸收）为79.40 mg / g，期望值为0.952。 Bentazone产品与Freundlich等温线非常吻合。这项研究表明，从印度Azardirachta Indica生物质的树皮中产生的生物炭可作为潜在的吸附剂从水中去除合成有机污染物。