PILOT PLANT STUDY OF AN UPGRADED ROTATING BIOLOGICAL CONTACTOR = 應集沈澱槽와 回轉生物接觸槽을 結合한 새로운 下水處理 System의 開發

다국어 초록 (Multilingual Abstract)

This paper deals with 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 2m 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 2rpm, the effluent TOC and NH₄-N concentrations were about 10g/㎥ and 5g/㎥, respectively, at the hydraulic loading of 70L/㎡/d, corresponding to a BOD loading of about 8g/㎡/d. The electrical power consumption of the RBC was 0.005kwh/㎡/d at a contactor rotating speed of 1rpm. 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.