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Adsorption of Nickel on Coarse Loamy Mixed Hyperthermic Fluventic Haplustept Soil of Punjab, North-West India

机译:印度西北旁遮普邦粗壤土混合热化氟化土壤镍镍的吸附

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Nickel (Ni) release into the environment has been increasing continuously as a result of man’s industrial activities and posses a significant threat to the environment and public health because of its toxicity, bioaccumulation in the food chain and persistence in nature ( Adriano, 1986; Alloway, 1995). Nickel input in the environment is mainly derived from phosphate fertilizers, pesticides, bio-solid sources, nickel electroplating, producing & using nickel catalysts, fabricating parts and structures by welding, flame spraying, cutting, grinding, and polishing of nickel containing alloys, manufacturing nickel cadmium batteries, constructing nickel molds in glass bottle factories and spraying nickel containing paints (Mellis et.al.,2004).). Nickel causes gastrointestinal irritation and lung cancer. Adsorption reactions occur at the solid/liquid interface and are the most important mechanisms for controlling the activity of metal ions in soil solution. In a complex system with amphoteric behavior, the comprehension of the mobility, availability and fate of pollutants in the soil system is crucial for the prediction of the environmental consequences and for development of prevention/remediation strategies. The most common remediation techniques are based on adsorption and precipitation phenomena. The present investigation was undertaken to employ alkaline soil of north-west India as a cheapest adsorbent to remove nickel from the water bodies having elevated nickel content.
机译:由于人的工业活动,镍(NI)释放到环境中一直在持续增加,因为它的毒性,食物链中的毒性和公共卫生有重大威胁,对食物链和持久性(Adriano,1986; Alloway 1995年)。环境中的镍输入主要来自磷酸盐肥料,农药,生物固体源,镍电镀,生产和使用镍催化剂,通过焊接,火焰喷涂,切割,镀镍,制造镀镍,制造,制造的零件和结构镍镉电池,在玻璃瓶工厂构建镍模具,并喷洒含镍的涂料(Mellis et.al.,2004)。)。镍导致胃肠刺激和肺癌。吸附反应在固体/液体界面处发生,是控制土壤溶液中金属离子活性的最重要机制。在具有两性行为的复杂系统中,对土壤系统中污染物的移动性,可用性和命运的理解对于预测环境后果和寻求预防/修复策略的发展至关重要。最常见的修复技术基于吸附和降水现象。本研究的研究是为了使用西北印度碱土土壤作为最便宜的吸附剂,以从含镍含量升高的水体中除去镍。

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