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What are the most common types of biological treatment systems used in wastewater treatment?

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The most common types of biological treatment systems used in wastewater treatment include aerobic biofiltration systems, which utilize attached biomass to degrade pollutants. These systems are engineered to remove a variety of contaminants like organic matter and micropollutants, with popular methods being trickling filters, aerated biological filters, and membrane bioreactors. Additionally, aerobic treatment processes, both suspended and attached growth, play a crucial role in converting organic matter into carbon dioxide and biomass in the presence of oxygen. The development of aerobic biofilm systems has been driven by the need to treat complex industrial wastewater compositions effectively, with a focus on microbial metabolisms and community structures. Furthermore, biological treatment processes, such as activated sludge, extended aeration, and membrane bioreactors, rely on the concerted activity of microorganisms for efficient wastewater treatment.

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Book Chapter•DOI Immobilized enzyme systems for wastewater treatment 01 Jan 2023	Immobilized enzyme systems are commonly used in wastewater treatment for degrading various chemical compounds, offering cost-effectiveness, eco-friendliness, and ease of use compared to other biological treatment systems.
Book Chapter•DOI Biofiltration treatment of wastewater through microbial ecology Satyendra C. Tripathi, Touseef Hussain - Show less +1 more 01 Jan 2022 3 Citations	Activated sludge process, extended aeration, fluidized bed reactor, sequential batch reactor, and membrane bio-reactor are common biological treatment systems used in wastewater treatment.
Book Chapter•DOI Aerobic biofilm systems for biological wastewater treatment 01 Jan 2022	The most common types of biological treatment systems in wastewater treatment are traditional, advanced, and hybrid aerobic biofilm technologies, each with varying advantages and disadvantages.
Book Chapter•DOI Biofiltration in wastewater treatment plants: An overview K.N. Yogalakshmi, Avimanu Sharma, Sunil Mittal - Show less +2 more 01 Jan 2022 1 Citations	The most common types of biological treatment systems used in wastewater treatment are trickling filters, aerated biological filters, and membrane bioreactors, known for their efficiency and low energy requirements.
Book Chapter•DOI Aerobic Wastewater Treatment Systems Caroline Lesemann-Elliott 01 Jan 2022	The most common types of biological treatment systems used in wastewater treatment are aerobic, anoxic, and anaerobic systems, with aerobic systems being the focus of this paper.

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