sewage treatment station |
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| navigate by keyword : blackwater chemical construction contamination dirty drainage ecology ecosystem environment environmental facility factory filtration gray groundwater industrial industry liquid nature overflow pipe plant pollution purification purity recycled recycling reservoir sanitary sanitation sedimentation separation sewage sewer sewerage sludge station storage system tank toxic treatment tube unhygienic wastewater water |
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| Salvador, bahia, brazil - january 15, 2021: workers from Empresa Baiana de Saneamento - Embasa, are seen at a sewage treatment plant on Barra beach in the city of Salvador |
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