watertreatment |
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| navigate by keyword : aeration biochemistry biology biotechnology circle cleaning clearance coagulation concretion construction defend dirty effluent engineering experiment factory filter flotation flowing horizontal hydrology industrial iron liquid measurement microbiology modern pollution pool rails recycling refining removing research reservoir resource rotates scouring scraper sewage sludge steel storage technology treatment turbidity wastewater water watertreatment |
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| Sludge scraper, Along rails in circle rotates - it separates sludge |
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