Tota-Maharaj, Kiran, Akunna, Joseph and Cheddie, Denver (2017) Municipal wastewater treatment and associated bioenergy generation using anaerobic granular bed baffled reactor. The Journal of the Association of Professional Engineers of Trinidad and Tobago, 45 (1). pp. 11-19. ISSN 1000-7924

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Abstract

This study assesses a modified anaerobic granular bed baffled reactor (GRABBR) which was assessed for municipal wastewater treatment at high organic loading rates (chemical oxygen demand ≥ 1,100 mg/l) under varying temperatures. For the two mesophilic temperatures tested (37⁰C and 25⁰C) under steady state conditions, the removal of Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) was 80 to 90 %. At lower organic loadings, the reactor operated as a completely mixed system with most of the treatment occurring in the first two compartments. The GRABBR also showed very high solids retention with low effluent suspended solids concentration for all organic and hydraulic conditions. Applications of GRABBR as a single unit, two-phase treatment system could be an economical option reducing the cost to achieve similar treatment goals for high strength wastewaters. The findings of this research suggest that the application of GRABBR is suitable for the treatment of multiple pollutants present in wastewater where each compartment acts as a specialised treatment stage with biogas production.

Item Type:	Article
Uncontrolled Keywords:	Anaerobic baffled reactor, Bioenergy, Domestic wastewater treatment, Methane
Subjects:	T Technology > TD Environmental technology. Sanitary engineering
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Engineering (ENG)
Related URLs:	Publisher
Last Modified:	25 Sep 2017 15:23
URI:	http://gala.gre.ac.uk/id/eprint/17508

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