This work assessed the quality of effluents from a paper recycling plant and its effect on the physico-chemical quality of the receiving Imo River system.Upon receiving effluents, the entire quality of the river changed.The river was discovered to have a good potential for recovery from the discharge of waste water from the paper mill as the waste water effluent has not overwhelmed the self purification ability of the river water.Besides, comparison of its quality with the Federal Environmental Protection Agency (FEPA) (1990) guidelines for maximum concentrations allowed for effluent...