Demands of high energy in wastewater treatment plant and water pollution due to grey water made the situation from bad to worse. Therefore, simultaneous removal of pollutant and fulfil the energy demand compel to carry out the current study. This study represented a trade-off between biogas upgrading and pollution removal by anaerobic co-digestion of brewery wastewater and malt sprout derived biochar. This study majorly aimed to define the effect of malt sprout derived biochar addition on anaerobic treatment performance of brewery wastewater in terms of grey water footprint (GWF) reduction and biogas upgrading. The results showed that chemical oxygen demand (COD) removal efficiency was enhanced by 2.375 times. Also, the effects of biochar addition on biogas production and content were investigated. Methane (CH4) production was improved by 2.48 times in terms of CH4 production yield. In this study, average reduction of GWF was 60.6 % after biochar addition. The addition of biochar upgraded the biogas production by 59.36 %. A new pollution reduction index (PRIB-GWF) and biogas boosting indicator (BBI) were developed.

中文翻译：

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在啤酒厂废水厌氧处理中，通过添加麦芽衍生的生物炭来权衡沼气升级和减少污染

污水处理厂对高能耗的需求和灰水造成的水污染使情况每况愈下。因此，同时去除污染物和满足能源需求迫使进行当前的研究。这项研究代表了沼气升级与通过啤酒厂废水和麦芽芽衍生的生物炭的厌氧共消化去除污染之间的权衡。本研究主要旨在确定麦芽衍生的生物炭添加量对啤酒厂废水厌氧处理性能的影响，包括减少灰水足迹 （GWF） 和沼气提纯。结果表明，化学需氧量 （COD） 去除效率提高了 2.375 倍。此外，还研究了生物炭添加对沼气产量和含量的影响。甲烷 （CH4） 产量与 CH4 产量相比提高了 2.48 倍。在本研究中，添加生物炭后 GWF 的平均降低为 60.6%。生物炭的添加使沼气产量提高了 59.36%。开发了新的污染减少指数 （PRIB-GWF） 和沼气增压指标 （BBI）。