Treatment of wastewater effluent from an industrial park for possible agricultural irrigation was investigated. The treatment method consisted of chemical coagulation, Fenton oxidation and ion exchange. The effectiveness of the combined physical and chemical methods in treating the industrial wastewater effluent was evaluated in terms of the water quality requirements for agricultural irrigation. Experimental tests were conducted to examine the effects of various operating variables of each treatment unit on the water quality and the optimum operating ranges of those variables were identified. The water quality of wastewater effluent after the combined chemical treatments was found to be very good, exceeding the agricultural irrigation standards. A preliminary economic evaluation of the treatment cost is also provided.