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Danfoss Case Study – Global Municipal and Industrial FocusMarselisborg Wastewater Treatment Plant Achieves Surplus Power Generation

By Mr Mandar Vaijanapurkar – Head of Drives Sales, Marketing & Services, Danfoss India Region Introduction: The Marselisborg Wastewater Treatment Plant, located in Aarhus, Denmark, has undergone a remarkable evolution in its approach for energy management, symbolizing a paradigm shift in its operational strategies. Transitioning from a primary goal of minimizing energy usage to maximizing net energy surplus starting in 2010, the plant has redefined its operational framework. Currently, it operates with a surplus in both electricity and heat production, actively contributing energy to power Aarhus’ district heating system. This…

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Lift Station Repairs Demonstrate Efficacy of New Chemical Grout Injection Technology

By Suzan Chin-Taylor Injecting chemicals to stabilize, lift, seal or compact weak soils and rocks is not new. Polyurethane grout material has been used for this purpose since the 1960s. However, the limitations of this process have often been frustrating, not only for asset owners but installers, as well. Historically, material injection has been limited to shallow depths of twenty feet or less, due to the technology, means, and methods of application. As the material is injected, it begins to synthesize (cure) inside the injection tube. While the synthesis rate…

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