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Mechanical resistance of granular activated carbon media in drinking water treatment
Water and Environment Journal ( IF 2 ) Pub Date : 2019-11-04 , DOI: 10.1111/wej.12535 Marc Philibert 1 , Calini Moser Zacchi 1 , Christian Pottier 1 , Damien Sacareau 1 , Isabelle Baudin 1
Water and Environment Journal ( IF 2 ) Pub Date : 2019-11-04 , DOI: 10.1111/wej.12535 Marc Philibert 1 , Calini Moser Zacchi 1 , Christian Pottier 1 , Damien Sacareau 1 , Isabelle Baudin 1
Affiliation
Organic microcontaminants in resources are a major issue for drinking water treatment plants and granular activated carbon (GAC) adsorption is one of the preferred treatment units used for their removal. GAC particles are small, abrasive and generally have irregular angular shapes. The combination of the particles’ characteristics and GAC filters operations leads to a risk of material loss through abrasion between the particles. Mechanical resistance characterization methods were applied to 14 commercially available GAC products, both new and used as well as reactivated, and concluded that commercially available GACs do not present a high risk of material loss though erosion is expected to be continuous throughout the filter’s life. The evaluation of the reactivation step showed that it had a significant impact on the parameters to evaluate the mechanical resistance of the GAC but did not result in an increased erosion of the material in operation.
中文翻译:
颗粒状活性炭介质在饮用水处理中的机械阻力
资源中的有机微污染物是饮用水处理厂的主要问题,而颗粒状活性炭(GAC)吸附是去除废水中的首选处理装置之一。GAC颗粒小,磨蚀并且通常具有不规则的角度形状。颗粒特性和GAC过滤器操作的结合会导致由于颗粒之间的磨损而造成材料损失的风险。机械阻力表征方法应用于14种市售的GAC产品,包括新产品,二手产品以及重新活化的产品,得出的结论是,尽管预计在过滤器的整个使用寿命中会持续腐蚀,但市售的GAC不会带来很高的材料损失风险。
更新日期:2019-11-04
中文翻译:
颗粒状活性炭介质在饮用水处理中的机械阻力
资源中的有机微污染物是饮用水处理厂的主要问题,而颗粒状活性炭(GAC)吸附是去除废水中的首选处理装置之一。GAC颗粒小,磨蚀并且通常具有不规则的角度形状。颗粒特性和GAC过滤器操作的结合会导致由于颗粒之间的磨损而造成材料损失的风险。机械阻力表征方法应用于14种市售的GAC产品,包括新产品,二手产品以及重新活化的产品,得出的结论是,尽管预计在过滤器的整个使用寿命中会持续腐蚀,但市售的GAC不会带来很高的材料损失风险。