制革厂废水处理物理,化学和反渗透方法分析

Analysis of physical,chemical and reverse osmosis methods for tannery wastewater treatment

皮革鞣制过程中会产生有害的化学和有机污染物。本研究探讨物理和化学处理方法,以处理废水。多个废水流代表在鞣制和废水处理过程的各种阶段的最初表征,并随后处理通过化学凝固和手段FL絮凝,吸附,音响过滤和反渗透。通过一系列广口瓶测试实验,使用多种工业级聚合物作为化学混凝剂可大大降低铬的浓度和浊度。结果表明,RO处理可用于将废水处理至与所用饮用水相似的条件。测试了四种不同的废水处理方法后,与传统方法相比,使用聚合物作为凝结剂最成功地去除了铬并提高了透明度。作为一种替代方法,由于所生产水的原始质量,反渗透系统被证明是最成功的。

harmful chemical and organic pollutants will be produced in leather tanning process.In this study,physical and chemical treatment methods are discussed to treat wastewater.A number of waste streams represent the initial characterization at various stages of the tanning and wastewater treatment process,followed by treatment by chemical coagulation and means of FL flocculation,adsorption,acoustic filtration and reverse osmosis.Through a series of wide mouth bottle test experiments,the concentration and turbidity of chromium can be greatly reduced by using a variety of industrial grade polymers as chemical coagulants.The results show that RO treatment can be used to treat wastewater to the conditions similar to the drinking water used.After testing four different wastewater treatment methods,compared with the traditional method,using polymer as coagulant can remove chromium most successfully and improve the transparency.As an alternative,the RO system has proven to be the most successful due to the original quality of the water produced.