This paper deals with the experimental results obtained by the pilot plant of an upgraded Rotating Biological Contactor(RBC). This is a two-story RBC which is designed to simultaneously achieve the biological oxidation and removal of detached biomass in the trough. The authors constructed a three-stage pilot plant with an octagonal stainless mesh contactor 2 m across to collect the design information of an upgraded RBC. The municipal wastewater treatment was conducted to examine the RBC's performance. According to experimental results, with a contactor rotating speed of 2 rpm.the effluent TOC and NH4−N concentrations were about 10 g/m3 and 5 g/m3, respectively, at the hydraulic loading of 70 l/m2/d, corresponding to a BOD loading of about 8 g/m2/d. The electrical power consumption of the RBC was 0.005 kWh/m2/d at a contactor rotating speed of 1 rpm. A jet mixed separator(JMS) was used as the physico-chemical pre-treatment unit of the RBC. With the addition of a coagulant,simultaneous flocculation and sedimentation of the suspended particles occurred in the JMS. This combined system of the JMS and RBC produced a clean effluent.
Research Article|November 01 1993
Pilot Plant Study of an Upgraded Rotating Biological Contactor
Water Sci Technol (1993) 28 (10): 361-368.
Y. Watanabe, Y. Iwasaki, S. Masuda; Pilot Plant Study of an Upgraded Rotating Biological Contactor. Water Sci Technol 1 November 1993; 28 (10): 361–368. doi: https://doi.org/10.2166/wst.1993.0254
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