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Application of locally available materials for the treatment of organic polluted water

机译:应用当地可获得的材料处理有机污水

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Several types of water treatment technologies including adsorption are how being used to treat polluted water. In this paper the removal of phenol by adsorption will be discussed. Activated carbons are successfully applied for purification of potable water and the removal of organic pollutants in wastewater. This paper is concerned with a low cost approach to treating waste water that is significant especially for those countries where oil palm is an available agricultural product like Malaysia, Ivory Coast, Nigeria, Thailand, Papua New Guinea. In the coastal region coconut is an available agricultural product and activated carbon prepared using coconut shell is also an economical method of water treatment. The materials used in this study were Commercial Activated Carbon (CAC), prepared from coconut shell and Modified Oil Palm Shell (MOPAS) of 1 to 2 mm diameters. The surface area of CAC and MOPAS was 38.5 m(2)/g and 38.2 m(2)/g respectively and the iodine number was determined as 674 and 454 for CAC and MOPAS, respectively. From the study the result shows above 70% removal efficiency for 5 mg/L and 40% removal efficiency for 20 mg/L of phenol solution. The performance efficiency will be discussed based on batch test, following Freundlich adsorption isotherm. The results indicate that CAC exhibits a higher adsorptive capacity (K-f of 0.079) as compared to MOPAS (K-f of 0.048). Hence a better removal efficiency for CAC at lower concentration of phenol. Results from column tests show a better adsorptive capacity for CAC (2.73) as compared to MOPAS (2.48). [References: 14]
机译:如何使用多种类型的水处理技术(包括吸附技术)来处理污水。本文将讨论通过吸附去除苯酚的方法。活性炭已成功应用于饮用水的净化和废水中有机污染物的去除。本文关注的是一种低成本的废水处理方法,这一方法对于马来西亚,象牙海岸,尼日利亚,泰国,巴布亚新几内亚等拥有油棕作为农产品的国家而言尤其重要。在沿海地区,椰子是一种可用的农产品,使用椰子壳制备的活性炭也是一种经济的水处理方法。本研究中使用的材料是商业活性炭(CAC),由椰子壳和直径为1-2毫米的改性油棕壳(MOPAS)制成。 CAC和MOPAS的表面积分别为38.5 m(2)/ g和38.2 m(2)/ g,CAC和MOPAS的碘值分别确定为674和454。根据研究结果,苯酚溶液的5 mg / L去除率超过70%,20 mg / L的苯酚溶液去除率达到40%。将根据Freundlich吸附等温线,基于批处理测试来讨论性能效率。结果表明,与MOPAS(K-f为0.048)相比,CAC表现出更高的吸附能力(K-f为0.079)。因此,在较低浓度的苯酚下,CAC的去除效率更高。柱试验的结果表明,与MOPAS(2.48)相比,CAC的吸附能力(2.73)更好。 [参考:14]

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