Analysis of Gray Water Recycling by Reuse of Industrial Waste Water for Agricultural and Irrigation Purposes

Safieh Javadinejad (Water Resource Engineering, Isfahan University of Technology, Isfahan, Khomeyni Shahr, Daneshgah e Sanati Hwy, Iran)
Rebwar Dara (Hydrogeology, University of Salahaddin, Erbil, Iraq)
Masoud Hussein Hamed (Department of Geology, College of Science, University of Salahaddin, Erbil, Iraq)
Mariwan Akram Hamah Saeed (Department of Geology, College of Science, University of Salahaddin, Erbil, Iraq)
Forough Jafary (Water resource management, University of Birmingham, Edgbaston St., B152TT, UK)


Isfahan industrial province with its numerous industrial estates in its areaand consequently the amount of wastewater produced by these settlementsis very difficult to deal with. Therefore, the need for proper wastewatertreatment and efficient management of industrial waste water from the industrial estates of this province should be seriously addressed and followedup by the authorities. The purpose of this study is the feasibility of reuseof wastewater from industrial settlements for agricultural and irrigationpurposes. The present study is a descriptive cross-sectional study. In thisstudy, the average values obtained from the sampling and the results of theexperiments on waste water from the industrial waste water treatment plantin Isfahan, 2017, have been used. Average values of BOD5, COD, TSS andso on were compared with the standards set by the Environmental Protection Agency and analyzed in Excel software. According to the results, theaverage values of COD, BOD5, TSS, SO4, pH and catalyst quality parameters were determined from wastewater effluents of 315,162,93,164 (mg /L), 8.3 and 32.5 (NTU) respectively. The results of the study show that the average values of the quality parameters examined from the effluent of the treatment plant other than BOD5 and COD are within the standard rangeand the limit for agricultural and irrigation purposes, which may lead toundesirable environmental performance of these two parameters.


Gray water; Water recycle; Water quality; Irrigation water users ;Industrial users

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