Biosolids Management ity than traditionally fabricated Geotube units, yet has the same footprint.
Volume reduction can be as high as 90 per cent.
Prior to the implementation of the Geotube units the raw ash slurry was discharged directly from the plant to onsite lagoons where it was stored and periodically transported offsite.
Performance The performance of Geotube units to date has not only met the expectations of the City of London, but exceeded them. The simplicity of the technology allows operators at the Greenway Pollution Control Plant, to monitor the installation and operate key components of the facility remotely. This means no additional personnel are required to operate the installation and minimal work hours are required by existing staff. Filtrate produced through the dewatering process is transferred to a lift station and then pumped back into the treatment process at the Greenway Plant for further treatment prior to discharge. The plant was designed to provide maximum on-site storage capacity. The City of London has arranged for the dewatered material to be used as an aggregate for concrete, NHHSLQJ LW RXW RI LWV ODQG¿OO 7KLV LV EHLQJ GRQH DW D IDU ORZHU cost than the previous practice of emptying the lagoons. As well as being considered a success by the City, the ash management system was awarded the 2012 Technical Innovation Award, by the Ontario Public Works Association, and the American Public Works Association Technical Innovation Award for 2013. For more information, E-mail: kevin@bishopwater.ca
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