Proposal of upgrading Isfahan north wastewater treatment plant: An adsorption/bio-oxidation process with emphasis on excess sludge reduction and nutrient removal

The Wilderness Wastewater Treatment Plant (WWTP) located in Orange County, Virginia is a four concentric ring oxidation ditch activated sludge system with a rated capacity of 1,935 m3/day. The three outer rings are used for wastewater treatment and the inner ring is used as an aerobic digester. The flow capacity has been increased from 1,935 to 3,760 m3/d, however, the desired design capacity has since been increased to 3,870 m3/d, and there are plans to eventually expand to approximately 4,840 m3/d with improved nitrogen removal. The design goal for the planned upgrade is to discharge an effluent that contains less than 10 mg/l total nitrogen (TN) at all times, with an annual average of 8 mg/l or less. In this study, the pre-upgrade performance of the Wilderness Wastewater Treatment Plant was evaluated and several modifications were recommended for the incorporation of biological nutrient removal (BNR).

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Full-scale sludge reduction in the water line of municipal wastewater treatment plant

Journal of Environmental Management ◽

10.1016/j.jenvman.2020.110714 ◽

2020 ◽

Vol 269 ◽

pp. 110714 ◽

Cited By ~ 4

Author(s):

Claudio Di Iaconi ◽

Marco De Sanctis ◽

Valerio Guido Altieri

Keyword(s):

Wastewater Treatment ◽

Wastewater Treatment Plant ◽

Municipal Wastewater ◽

Treatment Plant ◽

Full Scale ◽

Sludge Reduction ◽

Municipal Wastewater Treatment ◽

Water Line ◽

Municipal Wastewater Treatment Plant

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Wastewater reclamation for use in snow-making within an alpine resort in Australia - resource rather than waste

Water Science & Technology ◽

10.2166/wst.2002.0692 ◽

2002 ◽

Vol 46 (6-7) ◽

pp. 297-302 ◽

Cited By ~ 5

Author(s):

Z. Tonkovic ◽

S. Jeffcoat

Keyword(s):

Wastewater Treatment ◽

Nutrient Removal ◽

Wastewater Treatment Plant ◽

Treatment Plant ◽

Additional Treatment ◽

Wastewater Reclamation ◽

Reclaimed Wastewater ◽

Pathogen Removal ◽

Ski Resorts ◽

Treated Effluent

The Mt Buller Alpine Resort is located approximately 200 km north of Melbourne, in Victoria, Australia. A wastewater treatment plant services the resort and currently treats to advanced nutrient removal standards. The treated effluent is presently discharged into the Howqua River. Most Australian ski resorts are not blessed with abundant snow cover on a regular basis. Artificial snow allows most of the popular ski runs to operate for the whole of the season. At the Mt Buller resort, snow-making is presently limited by lack of water supply in the catchment. The conditions at Mt Buller resort present a unique opportunity to utilise reclaimed wastewater to allow increased snow-making capacity. It is one of the unique opportunities where the wastewater is valued as a resource rather than merely viewed as a waste problem. Wastewater reclamation for snow-making will require additional treatment for pathogen removal. It is proposed that following advanced nutrient removal, the effluent will require further treatment, including membrane ultrafiltration, so as to ensure a minimum of four barriers for pathogen removal. Pilot plant operation of a membrane ultrafiltration system commenced in June 2000 and will continue until the end of 2001, to primarily demonstrate the extent of pathogen removal.

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