Abstract:
ABSTRACT
Textile industry is one of the largest production sectors in Bangladesh. These industries use high
volume of water and large quantity of harmful chemical compounds throughout its operation and finally
dump this polluted water in nearby water bodies. In Chittagong, Karnafuli River is the victim of such
incident. This study is focused to find out the negative effects of textile wastewater on Karnafuli River.
The study took wastewater sample of five textile industries near Kalurghat Industrial Area and different
confluence points of river Karnafuli and analysed different water parameters including pH, BOD, COD,
TS, TSS, TDS, Total alkalinity, Chloride, Faecal coliform, Electrical conductivity. It also performs
heavy metal tests including Na, Ca, Mg, Mn, Zn, Cu, Pb, K and Cd. All the test results are compared
with few international standards along with the Bangladesh drinking & industrial effluent standards.
The comparison shows that the values of TDS & TSS in the river & the value of Turbidity in the
confluence points are much higher than the standard limit. The heavy metal test shows nothing
remarkable. The effects of high concentration of earlier mentioned parameters on human life and
aquatic life are also discussed in this study.
