This article discussed the effect of the main operating parameter involved in the operation of algal–bacterial granular sludge (ABGS) systems as promising biological processes for wastewater treatment. The focus was on the operational ranges reported in the literature capable of achieving better granule properties, good stability and high removal capacities. This review identified that hydraulic retention time (HRT), light intensity (LI) and light/dark periods were the most influential operating factors on the formation, stability, settleability and organic pollutant removal efficiency of ABGS. The discussion argued that ABGS systems enhance industrial and domestic wastewater treatment due to additional advantages that provide the symbiotic interactions to process performance, maintaining lesser operating costs concerning aerobic granular sludges (AGS) and microalgae consortia. This review will improve the understanding of the operation of ABGS systems and thus further expand possible operating combinations that help to enhance microbial interactions, microalgae growth and external aeration self-sufficiency in further research with a focus on its scaling up.

中文翻译：

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分析操作条件对废水处理藻菌颗粒污泥工艺性能的影响：综述

本文讨论了藻细菌颗粒污泥（ABGS）系统作为有前景的废水处理生物工艺运行中涉及的主要运行参数的影响。重点是文献中报道的能够实现更好的颗粒特性、良好的稳定性和高去除能力的操作范围。该综述发现水力停留时间（HRT）、光强度（LI）和光/暗周期是对ABGS的形成、稳定性、沉降性和有机污染物去除效率影响最大的操作因素。讨论认为，ABGS 系统具有额外的优势，可以增强工业和生活废水处理能力，为工艺性能提供共生相互作用，并保持好氧颗粒污泥 (AGS) 和微藻群落的较低运营成本。本次审查将增进对 ABGS 系统运行的理解，从而进一步扩大可能的运行组合，有助于在进一步研究中增强微生物相互作用、微藻生长和外部通气自给自足，重点是扩大规模。