CASE STORY Haarslev Industries supplies four sludge treatment drying lines to Ljuberzy. 560 t wet sludge per day will be mechanicaly dewatered so that it contains 25% dry substance. It will be dried to a dry substance of 90%. The drying will take place in four ROTADISC ® dryers, which are indirect heated by saturated steam. The incurred vapours of two dryers will showered down into one two step vapour condenser unit. In the first step

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