“InnoDry 2E,” Degrémont’s new sludge treatment technique, has proved its worth at the Suzhou Industrial Park wastewater treatment plant managed by Sino French Water, a SUEZ ENVIRONNEMENT subsidiary. This technique consists in drying waste treatment residues in order to recover them in the form of fuel. After two years in operation, 150,000 metric tons of sludge have been treated using this process, resulting in 41,000 metric tons of avoided CO2 emissions.
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Sino French Water’s website
United Water (USA)
A tripartite relationship between GreenVest, a company specializing in ecosystem management, an airport in New Jersey, and United Water, SUEZ ENVIRONNEMENT’s United States subsidiary, lies at the origin of the plan to restore a 6-hectare wetland.
Indeed, the proposed extension of Teterboro Airport will impinge upon a wetland, so the airport is required to offset the related damage. Meanwhile, United Water owns a wetland area in Closter and Haworth in New Jersey, which was heavily damaged by Hurricane Sandy in 2012. GreenVest has therefore offered to restore and enhance the site to offset the airport extension consequences. Indeed, New Jersey disposes of a highly developed conservation offset banking system. Ultimately, 12 additional acres could be restored. GreenVest will maintain the wetland and monitor the airport extension for five years before handing the wetland over to United Water.
The “Life + Aquaenvec” Project, which was coordinated by Cetaqua, Agbar’s research center, won the 2013 Best Project Award from the European Projects Association. This association supports R&D projects and innovations that are capable of improving living conditions of Europeans. The Cetaqua Project is a water management decisionassistance tool. Based on the fact that this field often lacks of planning and anticipation as regards to the needs of the population, Aquaenvec has the willingness to propose a methodology that enables local authorities and private operators to improve the efficiency of their environmental management systems. The method combines water life cycle assessment tools with a calculation of the related costs. It can be adjusted to local situations and integrate partnerships with the various stakeholders involved.
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Read the press release on Life + Aquaenvec’s project
For economic reasons, sludge digestion processes are often limited to large wastewater treatment plants. At the time of the renewal of the public service delegation contract for the sewage of the urban district of St. Quentin-en-Yvelines, Degrémont has proposed to install a metal digester patented by the company at a medium-size sewage treatment plant (40,000 population equivalent) to boost the plant’s performance thanks to an external supply of fats, oil, and grease (FOG), and to transform the biogas into biomethane for injection into the city gas grid. This innovation was honored at SUEZ ENVIRONNEMENT’s 2014 Innovation Awards.