Hybacs Process Performs Well In Pilot Trials
Bluewater Bio International has announced that its Hybacs process is continuing to show high performance in independent pilot trials carried out by Severn Trent Water in the UK and Aqualia in Spain. Both pilot trials are ongoing but at different stages. The collaboration with Severn Trent Water, which began the trial earlier, is now progressing with consideration being given to the potential of a full-scale installation.
Results from pilot plants installed at operational sites managed by Severn Trent Water and Aqualia verify that the Hybacs (hybrid bacillus activated sludge) process can remove nutrients from municipal-type wastewaters to comply with European regulations. More specifically, the plans have demonstrated Hybacs' efficacy in removing ammonia, nitrogen and phosphorus (key indicators of nutrient levels) to levels that comply with the general requirements of the sensitive area regulations in the European Union Urban Wastewater Treatment Directive.
Severn Trent Water sewage treatment works in Coleshill, near Birmingham, treats municipal wastewater containing discharges from a light industry park. Over the course of 10 weeks from June to August 2009, the Hybacs plant removed more than 97 per cent of ammonia and more than 70 per cent of TN (total nitrogen), with TN removal levels in the final week peaking at an average of 93 per cent.
Similarly, the Aqualia plant has demonstrated more than 90 per cent removal of TP (total phosphorous) over recent weeks. Hybacs plants can achieve this performance while reducing power consumption by at least 40 per cent, according to Bluewater Bio International. In addition to power savings, the Hybacs process offers Capex reductions of up to 30 per cent, and a land-area footprint reduction of up to 40 per cent compared with conventional treatment technologies. Hybacs' modular format is said to be ideal for upgrading existing plants since generally all of the existing infrastructure can be leveraged for use in the Hybacs plant.
In most circumstances, Hybacs eliminates the need for water companies to construct large additional tanks of the type needed to upgrade conventional treatment plants to deliver nutrient removal performance. Hybacs can also be used to upgrade the general treatment capacity of conventional plants. Following the trials, Bluewater Bio is undertaking feasibility work with Severn Trent regarding the potential implementation of the Hybacs process within its region.
Results from pilot plants installed at operational sites managed by Severn Trent Water and Aqualia verify that the Hybacs (hybrid bacillus activated sludge) process can remove nutrients from municipal-type wastewaters to comply with European regulations. More specifically, the plans have demonstrated Hybacs' efficacy in removing ammonia, nitrogen and phosphorus (key indicators of nutrient levels) to levels that comply with the general requirements of the sensitive area regulations in the European Union Urban Wastewater Treatment Directive.
Severn Trent Water sewage treatment works in Coleshill, near Birmingham, treats municipal wastewater containing discharges from a light industry park. Over the course of 10 weeks from June to August 2009, the Hybacs plant removed more than 97 per cent of ammonia and more than 70 per cent of TN (total nitrogen), with TN removal levels in the final week peaking at an average of 93 per cent.
Similarly, the Aqualia plant has demonstrated more than 90 per cent removal of TP (total phosphorous) over recent weeks. Hybacs plants can achieve this performance while reducing power consumption by at least 40 per cent, according to Bluewater Bio International. In addition to power savings, the Hybacs process offers Capex reductions of up to 30 per cent, and a land-area footprint reduction of up to 40 per cent compared with conventional treatment technologies. Hybacs' modular format is said to be ideal for upgrading existing plants since generally all of the existing infrastructure can be leveraged for use in the Hybacs plant.
In most circumstances, Hybacs eliminates the need for water companies to construct large additional tanks of the type needed to upgrade conventional treatment plants to deliver nutrient removal performance. Hybacs can also be used to upgrade the general treatment capacity of conventional plants. Following the trials, Bluewater Bio is undertaking feasibility work with Severn Trent regarding the potential implementation of the Hybacs process within its region.
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