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[...]All-round building protection with tested security We must eliminate the risk of any manipulation of our drinking water and its quality. Access to the free water surface must be prevented and the plan[...]

[...]Sustainable processing and recycling of mineral waste Mineral-rich wastes such as street sweepings, sludge from sewer flushing and cleaning of stormwater tanks and gullies, and grit trap material cont[...]

[...]Grit washing for Reduction of the Organic Matter Contained in Grit Grit and mineral substances from the grit chambers of municipal wastewater treatment plants usually contain a large to very large pro[...]

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