Evaluation of Current Industrial Effluents in Port City Chattogram, Bangladesh

The study area is Chattogram, the second largest metropolis of Bangladesh and the economic area of the country, is situated on the right bank of the river Karnaphuli. The study was carried out in five industries as a sampling station before and after treatment of industrial discharges and covered mainly two seasons, winter and dry seasons from October 2017 to June 2019.The range of results of waste water obtained were 163 – 197 mg L-1 for total suspended solids (TSS), 2015 – 2,505 mg L-1 for total dissolved solids (TDS), 2407- 2656 mg L-1 for Total solids,148 – 192 mg L-1 for hardness, 4.01 – 6.08mg L-1 for dissolved oxygen, 76 – 112 mg L-1 for biochemical oxygen demand (BOD), 249 – 281 mg L-1 for chemical oxygen demand (COD), 0.008 mg L-1 for Cd. From this research work, it is seen that almost all the parameters of industrial discharges are out of range prescribed by the Department of Environment (DoE), Bangladesh which is so much alarming for us. So, the accurately untreated industrial waste water mainly heavy metals are deposited in our bodies through food cycle and impacts on our body. From this research work it is observed that all of the industries in designated area do not establish the ETP section. Most of the experimental industries used almost analogous types of ETP and their effluent treatment ways were capable to reduction their different parameters but not