PHYSICO-CHEMICAL ANALYSIS OF TEXTILE EFFLUENT COLLECTED FROM TIRUPPUR BEFORE AND AFTER TREATMENT WITH CRAB (PORTUNUS SANGUINOLENTUS) SHELL CHITOSAN

Abstract

Textile industries are one of the main sources of wastewater containing high amounts of colour, pH,BOD, COD, DO, TDS, TSS, alkalinity, chloride, phosphate, hardness, chemicals and heavy metals.They contaminate the water bodies and its ecosystem. In the present investigation, textilewastewater was collected from the discharge tank of a Tiruppur textile industry to investigateeleven physico-chemical parameters such as colour, total solids, TDS BOD, COD, Total alkalinity,Total hardness, chlorides, sodium, sulphates and iron. Chitosan extracted from crab shell is selectedas an absorbent to reduce most of the aforesaid parameters present from the textile industrial wastewater. The percentage removal of colour, total solids, TDS BOD, COD, total alkalinity, totalhardness, chlorides, sodium, sulphates and iron were 32.61 mg/l, 90.97 mg/l, 91.81 mg/l, 61.72mg/l, 55.66 mg/l, 91.57 mg/l, 45.90 mg/l, 96.76 mg/l, 66.73 mg/l, 80.77 mg/l and 94.79 mg/l respectively.