Abstract
The study focused on evaluation of physicochemical and bacteriological properties of raw and treated paint effluents, treatment efficiency of activated rice husk, as well as correlation between the effluents with controlled standards of World Health Organization (WHO). Parameters were investigated via standard techniques. The values of temperature, pH, electrical conductivity and total dissolved solids for treated effluent were within the range of 7.1-7.8, 29.1-29.40C, 590980gS/cm and 320-660mg/L respectively, while the raw effluent had values of 6.6, 28.1 0C, 1220pS/cm and 810mg/l for pH, temperature, EC and TDS respectively. Also noted were the range of total suspended solids (TSS); 170-260mg/L, chloride; 62.06131.18mg/L, dissolved oxygen (DO); 1.70—2.90mg/L, biochemical oxygen demand (BOD); 19.61—48.47mg/L, chemical oxygen demand (COD); 45.34—93.18mg/L, sulphate; 4.17—8.37mg/L, zinc; 0.514-0.669mg/l, lead; 0.039-0.078mg/l, cadmium; 0.0060.01 Img/l and copper; 0.033-0.052mg/l, while nickel was below detection limits. The raw sample had a value of 280mg/l for TSS, 187.21mg/l for chloride, no detection for DO, 72.18mg/l for BOD, 156.93mg/l for COD, 14.75mg/l for sulphate, 0.426mg/l for zinc, 0.141mg/l for lead, 0.018mg/l for cadmium, 0.093mg/l for copper, while nickel was below detection limit. The total coliform count (TCC) in raw sample was 740MPN/100ml, and dropped to a range of 580220MPN/ml in treated effluents. The finding has proven that rice husk is effective for the treatment of industrial effluents, thus reduces the physico-chemical properties of paint effluent

Key words: Physicochemical, Paint, Treatment, Effluents