Qualitative and Quantitative Parameters to Measure the Output Water of Leachate Treatment Plant Arad Kooh(Kahrizak Tehran) in order to Use it for Agricultural Use and Discharge to Surface Water

Abstract

In this study, the use of backwash, extracted from city waste from Tehran's Kahrizakareawas<br />investigated in agricultural applications as well as in eco system applications. The purpose of this<br />research was to definethe quality of qualitative and quantitative parameters to measure the output of<br />leachate treatment plant Arad Kooh(Kahrizak Tehran) in order to reuse it for agricultural use and<br />discharge to surface water. This research is based on a standard method 2005,ASTAM 2009/1102/1101<br />& DIN 2008. In all, the resultsindicated that as far as the following seven parameters are concerned, the<br />waste backwash at Aradkooh meets theIranian eco system standards (those seven parameters being:<br />PH, EC, zinc, phosphate, nitrate <only for dumping into shallow waters>, total coliform level and the<br />opacity level). In addition, as far the following sixparameters are concerned, the said backwash meets<br />the standards of the International Health Organization (these six being PH, zinc, TDS, nitrate and total<br />coliform). Finally, as far as the following seven parameters are concerned, Aradkooh's backwash<br />meets the standards of the International Wheat and Groceries Organization (these parameters being:<br />PH, zinc, dissolved solids, ammonia, nitrate and total coliforms). However,the study showed that the<br />levels of the heavy metals of cadmium and lead are above the stated standards of the following three<br />organizations: the Iranian eco System Organization, the International Health Organization and the<br />International Wheat and Groceries Organization. The biochemical and chemical oxygen demand<br />parameters have been restricted for irrigation consumption because of they are assumed as pollution.<br />So this backwash is pollutedand it is not useful for irrigation consumption. If we want to use this<br />backwash for irrigation consumption, we have to treat it to reduce that mentioned pollution parameters<br />in accordance to the Iranian eco system standards following International Health Organization and<br />International Wheat and Groceries Organization.