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Hanging sponge aerobic bioreactor and membrane - adsorption hybrid system: a novel two stage system in wastewater reuse.

Project Member(s): Vigneswaran, S., Ngo, H.

Funding or Partner Organisation: Australian Research Council (ARC Discovery Projects)
Australian Research Council (ARC - Other Funds)

Start year: 2002

Summary: A novel two-stage system consisting of a downflow hanging sponge biological reactor (DHS) and submerged membrane-adsorption hybrid system (SMAS) will be developed in this study. The DHS modified to incorporate solid separation and superior organics, and nitrogen removal will be an excellent pretreatment system that features minimum energy requirement and on sludge production. The post treatment of SMAS is to be studied to optimize aeration, biological activity on activated carbon will remove the remaining organics, solids, bacteria and majority of viruses. The developed hybrid system will be a cost- effective system in water reuse in small communities. ''

Publications:

Guo, W, Shim, WG, Vigneswaran, S & Ngo, H 2005, 'Effect of Operating Parameters in a Submerged Membrane Adsorption Hybrid System: Experimental and Mathematical Modelling', Journal of Membrane Science, vol. 247, no. 1-2, pp. 65-74.
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Guo, W, Vigneswaran, S & Ngo, H 2005, 'Effect of Flocculation and/or adsorption as pretreatment on the critical flux of crossflow microfiltration', Desalination, vol. 172, no. 1, pp. 53-62.
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Shon, H, Guo, W, Vigneswaran, S, Ngo, H & Kim, IS 2004, 'Effect of flocculation in membrane-flocculation hybrid system in water reuse', Separation Science And Technology, vol. 39, no. 8, pp. 1871-1883.
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Shon, H, Vigneswaran, S, Kim, IS, Cho, J & Ngo, H 2004, 'The effect of pretreatment to ultrafiltration of biologically treated sewage effluent: a detailed effluent organic matter (EfOM) characterization', Water Research, vol. 38, pp. 1933-1939.
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Guo, W, Vigneswaran, S & Ngo, H 2004, 'A Rational Approach In Controlling Membrane Fouling Problems: Pretreatments to a submerged Hollow Fibre Membrane System', Water Environment - Membrane Technology Proceedings, IWA Specialty Conference, Water Environment-Membrane Technology, IWA, Seoul, Korea, pp. 517-524.

Chaudhary, DS, Vigneswaran, S, Jegatheesan, V, Ngo, H, Moon, H, Shim, WG & Kim, SH 2003, 'Granular activated carbon (GAC) adsorption in tertiary wastewater treatment: experiments and models', Water Science And Technology, vol. 47, no. 1, pp. 113-120.
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Chaudhary, DS, Vigneswaran, S, Ngo, H, Kim, SH & Moon, H 2003, 'Comparison of Association Theory and Freundlich Isotherm For Describing Granular Activated Carbon Adsorption of Secondary Sewager Effluent', Journal of Environmental Engineering and Science, vol. 2, no. 2, pp. 111-118.
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Chaudhary, DS, Vigneswaran, S, Ngo, H, Kim, SH & Moon, H 2003, 'Effects of biodegradation and background inorganic substances on granular activated carbon adsorption of wastewater', Separation Science And Technology, vol. 38, no. 11, pp. 2515-2531.
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Vigneswaran, S, Chaudhary, DS, Ngo, H, Shim, WG & Moon, H 2003, 'Application of a PAC-membrane hybrid system for removal of organics from secondary sewage effluent: Experiments and modelling', Separation Science And Technology, vol. 38, no. 10, pp. 2183-2199.
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Guo, W, Vigneswaran, S, Ngo, H & Ben Aim, RM 2003, 'Evaluating the Efficiency of Pretreatment to Microfiltration: Using Critical Flux As a Performance Indicator', IMSTEC 2003, International Membrance Science and Technology Conference, AWA-UNESCO Membrane Centre, Sydney, Australia, pp. 1-6.
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Guo, W, Vigneswaran, S, Ngo, H, Shon, H & Shimohoki, S 2003, 'Improving the Performance of a Crossflow Microfiltration in Tertiary Wastewater Treatment and Reuse By Specific Pre-Treatment Processes', ASIAN WaterQual 2003, IWA Asia-Pacific Regional Conference, IWA-Regional Publication, Bangkok, Thailand, pp. 1-8.

Keywords: Downflow hanging sponge reactor Adsorption Membrane hybrid system Aerobic reactor Wastewater treatment and reuse Mathematical models

FOR Codes: Water and Sanitary Engineering, Chemical Engineering not elsewhere classified, Prevention and treatment of pollution, Waste management and recycling