The Central Effluent Treatment Plant (CETP) at Savar's leather industry has the capacity to treat only 20,000 to 22,000 cubic metres of liquid waste a day. However, during busy leather-processing periods, the tanneries generate 30,000 to 40,000 cubic metres of effluent daily, leaving the excess untreated and discharged directly into the Dhaleshwari River. Photo: Shamsul Haque Ripon