DESIGN AND INITIAL PERFORMANCE OF A WASTEWATER RECLAMATION PLANT USING A NOVEL MODIFIED SBR PROCESS
Authors: Wu, Weiguo; Timpany, Peter
Source: Proceedings of the Water Environment Federation, WEFTEC 2002: Session 61 through Session 70 , pp. 303-316(14)
Publisher: Water Environment Federation
Abstract:A novel patented constant level, continuous flow modified SBR process was used as a backbone wastewater reclamation treatment component at the new Incheon International Airport Wastewater Reclamation Plant (WWRP), Incheon, Korea to biologically remove nitrogen and phosphorus. This paper describes the design of the WWRP with emphasis on the major process design challenges that had faced the design engineers. The initial operating results of the WWRP is presented to illustrate the effectiveness and efficiency of the WWRP design in meeting the stipulated water recycle and reuse requirements of the Airport.
The design of the WWRP emphasized efficiency, simplicity, reliability, low construction and O&M costs, and low land area requirement. Due to the fact that the WWRP is in close vicinity to the Airport, strict odor control was required. For ease of odor control, it was decided that all WWRP treatment components were to be either enclosed in buildings or buried underground. As a result, to minimize the construction and O&M costs, a single train treatment system was selected with all equipment of the major treatment component, i.e., the modified SBR process retrievable on the run for ease of repair and maintenance.
The WWRP was commissioned in the middle of 2000, and formally put into operation in March 2001. The five-month influent BOD5, CODmn, TSS, T-N and TP for May through September 2001 averaged at 608, 272, 539, 93.5 and 17.0 mg/L respectively. The final treated effluent BOD5, CODmn, TSS, T-N and TP for the same period averaged 0.90, 8.0, 0.72, 5.8 and 0.15 mg/L respectively. In comparison with the stipulated quality requirements for water reuse for BOD5, CODmn, TSS, T-N and TP of less than 6, 10, 6, 10 and 1 mg/L respectively, the above initial operating results of the WWRP demonstrate that the wastewater reclamation system using the novel modified SBR process is both effective and efficient in meeting the effluent quality requirements for water recycle and reuse at the Airport.
Document Type: Research Article
Publication date: January 1, 2002
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