Hong-Bok Choi

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To decrease the HS and induce effective anaerobic digestion of waste-activated sludge (WAS), the micro-organisms concentration within the sludge were ruptured by a mechanical jet stream and smashed under a pressure of 30 bar. Using this procedure, the HS concentration was decreased from 30-50 mg/l of intact WAS to 27-240 μg/l.
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