Treatment of synthetic wastewater by using submerged attached growth media in continuous activated sludge reactor system

Baker Nasser Saleh Al-Dhawi; Shamsul Rahman Mohamed Kutty; Lavania Baloo; Najib Mohammed Yahya Almahbashi; Aiban Abdulhakim Saeed Ghaleb; Ahmad Hussaini Jagaba; Vicky Kumar; Anwar Ameen Hezam Saeed

doi:10.22712/susb.20220002

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2022 Vol.13, Issue 1 Next Page

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Treatment of synthetic wastewater by using submerged attached growth media in continuous activated sludge reactor system

31 March 2022. pp. 2-10

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Abstract

In wastewater treatment, biological treatment is considered the most efficient among all technologies. An attached-growth system in biological treatment is capable to provide more microorganisms attached to the fixed media and therefore increase the treatment efficiency. Moreover, the conventional wastewater treatment plants can not cope with Malaysian discharge limits. The purpose of this study is to enhance the efficiency of the treatment process using a submerged attached growth system incorporated with the conventional treatment system. Two parallel continuous flow-activated sludge systems treating synthetic wastewater were used. In Reactor A, POC was used as the submerged attached growth media while Reactor B was used as a control reactor. The bioreactor has a volume of 10 L. The studies were carried out at various influent flow rates of 5, 10, 15, 20, 25, and 30 L/d, and constant organic load rate OLR. The influent and effluent were sampled every two days. Parameters COD, MLSS, and MLVSS were monitored. Generally, COD was highly removed. The average removal of COD reached 96% for reactor A while 88% for reactor B. Overall, the system demonstrated higher treatment efficiency of COD removal. Kinetic models, Monod was applied. Monod was ideal for explaining the experimental data in terms of microbial growth parameters. Ks was obtained as 223.97 and 370 g/m³ for reactor A and B respectively, while (µ_max) 0.25 and 0.16 per day with a correlation coefficient (R²) of 0.9435 and 0.8799, for reactor A and B, respectively. Therefore, the models can be used in designing a submerged attach growth system and consequently predict the bioreactor behaviour.

Keywords

synthetic wastewater

COD

media

attach growth

kinetic

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Information

Publisher :Sustainable Building Research Center (ERC) Innovative Durable Building and Infrastructure Research Center
Publisher(Ko) :건설구조물 내구성혁신 연구센터
Journal Title :International Journal of Sustainable Building Technology and Urban Development
Volume : 13
No :1
Pages :2-10
Received Date : 2022-01-19
Accepted Date : 2022-03-09
DOI :https://doi.org/10.22712/susb.20220002

International Journal of Sustainable Building Technology and Urban Development ISSN:2093-761X(Print) 2093-7628(Online)

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