Membrane Filtration as Post-Treatment of Rotating Biological Contactor for Wastewater Treatment
نویسندگان
چکیده
A rotating biological contactor (RBC) offers a low energy footprint but suffers from performance instability, making it less popular for domestic wastewater treatment. This paper presents study on an RBC integrated with membrane technology in which filtration was used as post-treatment step (RBC–ME) to achieve enhanced performance. The and RBC–ME systems were operated under different hydraulic retention times (HRTs) of 12, 18, 24, 48 h, the effects HRT effluent filterability assessed. results show that demonstrates superior than standalone RBC. bioreactor achieved 87.9 ± 3.2% chemical oxygen demand (COD), 98.9 1.1% ammonium, 45.2 0.7% total nitrogen (TN), 97.9 0.1% turbidity removals. comparison HRTs showed COD TN removal efficiency highest at 92.4 2.4% 48.6 1.3% efficiencies, respectively. longer also lead better filterability. steady-state permeability increased respectively by 2.4%, 9.5%, 19.1% compared 12 h. Our analysis fouling shows resistance decreased higher HRTs. Overall, offered promising alternative traditional suspended growth processes microbial activity performance, is line requirements sustainable development environment-friendly
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ژورنال
عنوان ژورنال: Sustainability
سال: 2021
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su13137287