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This paper presents a case study of a leading edge wastewater treatment solution for wastewater produced at a specialty potato products processor. Traditionally, the potato processor had been storing wastewater in large on-site tankage, and then applying the wastewater on local farmland during times of the year when weather permitted. However, odor was a concern, and the company wanted to expand production, thereby making it more challenging to find enough land to apply the wastewater. Several options were considered, including anaerobic treatment and activated sludge.

In early 2005, Les Aliments Bari commissioned ADI Systems to conduct an on-site membrane bioreactor (MBR) pilot study after determining that the MBR process offered the lowest capital cost solution and the most compact footprint. It was also evident that the MBR process provided the best solution for meeting the very strict effluent requirements given by the Quebec government for BOD (< 10 mg/l), TSS (< 10 mg/l), and total phosphorus [TP] (< 1 mg/l). The receiving stream was small, thus the effluent limits were strict, and the wastewater was very strong. The MBR system appeared to be the most economical and best technology for this case and a full-scale system was built and commissioned. The first eight months of the full-scale MBR operating results are discussed.

Document Type: Research Article


Publication date: 2007-01-01

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