Chang JS, Chen AC, Hung MY, Shih M. The operational strategy of intermittent cycle extended aeration system in treating sewage. J. Chem. Technol. Biotechnol. 1999;74:688-692.
Morgenroth E, Obermayer A, Arnold E, Brul A, Wagner M, Wilderer PA. Effect of long-term idle periods on the performance of sequencing batch reactors. Water Sci. Technol. 2000;41:105-113.
Yilmaz G, Lemaire R, Keller J, Yuan Z. Effectiveness of an alternating aerobic, anoxic/anaerobic strategy for maintaining biomass activity of BNR sludge during long-term starvation. Water Res. 2007;41:2590-2598.
Archibald F, Young F. Common stresses affecting activated sludge health and performance--what the four-assay set can tell us. Water Sci. Technol. 2004;50:49-55.
Lopez C, Pons MN, Morgenroth E. Endogenous processes during long-term starvation in activated sludge performing enhanced biological phosphorus removal. Water Res. 2006;40:1519-1530.
Lu H, Keller J, Yuan Z. Endogenous metabolism of Candidatus Accumulibacter phosphatis under various starvation conditions. Water Res. 2007;41:4646-4656.
Barbusinski K, Koscielniak H. Activated sludge floc structure during aerobic digestion. Water Sci. Technol. 1997;36:107- 114.
Nellenschulte T, Kayser R. Change of particle structure of sewage sludges during mechanical and biological processes with regard to the dewatering result. Water Sci. Technol. 1997;36:293-306.
Moon BH, Seo GT, Lee TS, Kim SS, Yoon CH. Effects of salt concentration on floc characteristics and pollutants removal efficiencies in treatment of seafood wastewater by SBR. Water Sci. Technol. 2003;47:65-70.
Ministry of Environment. Korean Standard Methods. Gwacheon: Ministry of Environment; 2002.
Guan J, Waite TD, Amal R, Bustamante H, Wukasch R. Rapid determination of fractal structure of bacterial assemblages in wastewater treatment: implications to process optimization. Water Sci. Technol. 1998;38:9-15.
Coello Oviedo MD, Lopez-Ramirez JA, Sales Marquez D, Quiroga Alonso JM. Evolution of an activated sludge system under starvation conditions. Chem. Eng. J. 2003;94:139-146.
Martins AM, Heijnen JJ, van Loosdrecht MC. Effect of feeding pattern and storage on the sludge settleability under aerobic conditions. Water Res. 2003;37:2555-2570.
Noutsopoulos C, Mamais D, Andreadakis A. Effect of solids retention time on Microthrix parvicella growth. Water SA 2006;32:315-321.
Siegrist H, Brunner I, Koch G, Phan LC, Le VC. Reduction of biomass decay rate under anoxic and anaerobic conditions. Water Sci. Technol. 1999;39:129-137.
Lee Y, Oleszkiewicz JA. Effects of predation and ORP conditions on the performance of nitrifiers in activated sludge systems. Water Res. 2003;37:4202-4210.
Wilen BM, Jin B, Lant P. The influence of key chemical constituents in activated sludge on surface and flocculating properties. Water Res. 2003;37:2127-2139.
Wilen BM, Balmer P. The effect of dissolved oxygen concentration on the structure, size and size distribution of activated sludge flocs. Water Res. 1999;33:391-400.
Govoreanu R, Seghers D, Nopens I, et al. Linking floc structure and settling properties to activated sludge population dynamics in an SBR. Water Sci. Technol. 2003;47:9-18.
Jang H, Schuler AJ. The case for variable density: a new perspective on activated sludge settling. Water Environ. Res. 2007;79:2298-2303.
Carucci A, Kuhni M, Brun R, et al. Microbial competition for the organic substrates and its impact on EBPR systems under conditions of changing carbon feed. Water Sci. Technol. 1999;39:75-85.
Panswad T, Anan C. Specific oxygen, ammonia, and nitrate uptake rates of a biological nutrient removal process treating elevated salinity wastewater. Bioresour. Technol. 1999;70:237- 243.