Polishing of Chemical Oxygen Demand (COD) Using Moving Bed Bio-Reactor

Abstract

Abstract. The pilot-scale experiment in moving bed biofilm reactor (MBBR) with a capacity of 433 L was carried out for this study with real life situations, it was decided that the complete research work must be done under as realistic conditions as possible, i.e. with real municipal wastewater, chemical free and with local commercially available products such as carriers for biofilm reactor. The reactor was start-up in 30/9/2013 up to date, Effluent from clarifier of STP used as influence of MBBR for polishing. MBBR is using continues down flow to polish effluent municipal wastewater from a faculty of new building engineering community in UKM to get the water free from main pollutant parameters, for reuse in the irrigation or discharge to the river. Laboratory experiments will conduct with different hydraulic retention time (HRT), filling ratio of plastic (Enviro Multi Media) in the MBBR about 5%. Aerobic reactors used the majority of the decaying organic material. An average removal rate of 41.75%, 32.85%, 24.80% and 35.77% of initial chemical oxygen demand (COD) were achieved under a HRT of 24hr, 12hr, 6hr and 2hr, respectively. The model simulated results showed good agreements with experimental results. The model could be employed in the design of a full-scale MBBR process for simultaneous removal of organic carbon from effluent STP.

Shifts in microbial community structure and diversity in a novel waterfall biofilm reactor combined with MBBR under light and dark conditions

“…3 MBBRs have been designed to meet a wide range of effluent quality standards, including stringent nutrient limits and also applicable to wide range wastewater ows ranging from 10 000 to 150 000 m 3 per day. 4 MBBRs have become an interesting alternative for wastewater treatment as it is reliable and compact systems due to development in their designs and operation which has resulted in decreased process, signicantly lower suspended solid production, consistent production of high quality and reusable water and minimal waste disposal. 5 Aeration rate and oxygen transfer efficiency played very important role in the MBBR treatment, while the oxygenation capacity of aerator which used in MBBR usually decreased relatively rapidly, and the replacement of aerator are still a problem in real wastewater treatment.…”

Biological treatment methods of ship sewage: Case study

“…Biofilm process advantages are simple operation, its eco-friendly approach, and cost-effectiveness (Al-Amshawee et al, 2020; Kalnina & Ivaninoka, 2020). The attached biomass in the biofilm process can operate at high concentrations of active biomass (Kawan et al, 2016). The biofilm process disadvantage is that unsteady bioremediation could occur, because an ineffectively designed carrier disturbs microbial growth (Al-Amshawee et al, 2020).…”

Improvement of MBBR Performance by the Addition of 3D-Printed Biocarriers Fabricated with 13X and Bentonite

“…operating worldwide and processing either urban wastewater or industrial wastewater [1]. MBBR technology is an advanced technology with low cost of capital, low operating, maintenance and replacement costs while at the same time it is also simple, reliable and stable to use, and allows all processes to take place in one tank [2,3]. Compared to other wastewater treatment methods, MBBR is a financially and environmentally competitive method, as it does not require the constant addition of costly reagents and it does not produce dangerous residuals [1,4,5].…”