An evaluation of a laboratory scale chemical coagulation using aluminium chlorohydrate (1%) and polyamine (1%) coagulants on its effectiveness in the removal of bulk inert pollutant contents such as particulate chemical oxygen demand (COD) and turbidity to obtain clean effluent discharge and most cost-effectively treated effluent using a jar test was conducted in this current study. This study aimed to find the viable inert removal coagulant between the two above-mentioned coagulants in order to achieve zero liquid effluent discharge (ZLED). The preliminary results showed that adding variable dosages of polyamine and 50% aluminium chlorohydrate combined coagulants dosages presented an improved particulate chemical oxygen demand, color, and turbidity removal efficiencies. The ascertained turbidity removal efficiency using the combined coagulation dosage of polyamine–aluminium chlorohydrate (PAC) treatment was 90.50% and 59.36% particulate chemcial oxygen demand removal, as comparable to polyamine alone with particulate chemical oxygen demand removal of 50% and turbidity of 75%. Likewise, an appreciable removal efficacy was observed as the aluminium chlorohydrate treatment alone was for particulate chemical oxygen demand and turbidity was 37% and 54%, respectively. In essence, this study emphasized the knowledge gap of the significant effect of the polymeric polyamine flocculant strength in adopting the combined coagulation dosage method to improve its coagulation efficiency and the high agglomeration on suspended solids, thereby, removing more of the unwanted inert contents from brewery wastewater. To determine zero liquid effluent discharge, this study clearly recommended an integrated treatment approach, microbial fuel cell integrated with a lab scale chemical coagulation technique for efficient non-biodegradable pollutant removal.

中文翻译：

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南非啤酒废水中化学混凝工艺的处理效果：多胺和氯化铝混凝剂的比较

使用氯化铝 (1%) 和多胺 (1%) 混凝剂对实验室规模的化学混凝进行评估，以评估其去除大量惰性污染物含量（如颗粒化学需氧量 (COD) 和浊度）以获得清洁排放物和在当前的研究中，使用罐子测试进行了最具成本效益的污水处理。本研究旨在寻找上述两种混凝剂之间可行的惰性去除混凝剂，以实现零液体流出物排放（ZLED）。初步结果表明，添加不同剂量的多胺和 50% 水合氯化铝的组合混凝剂剂量可提高颗粒化学需氧量、颜色和浊度去除效率。使用聚胺-氯化铝 (PAC) 处理的组合混凝剂量确定的浊度去除效率分别为 90.50% 和 59.36% 的颗粒化学需氧量去除率，与单独的多胺相比，颗粒化学需氧量去除率为 50%，浊度为 75% . 同样，观察到明显的去除效果，因为单独的氯化水合铝处理用于颗粒化学需氧量，浊度分别为 37% 和 54%。从本质上讲，本研究强调了聚合聚胺絮凝剂强度在采用组合混凝剂量法以提高其混凝效率和对悬浮固体的高附聚作用的显着影响的知识差距，从而去除了啤酒厂中更多不需要的惰性成分废水。