Abstract
Abstract The goal of our research is to study the potential treatment options for the relatively contaminated greywater fraction from washing, in order to use this fraction as an alternative water source. During the research to compare the purification efficiency of different greywater treatment solutions we have created a constant composition synthetic laundry greywater, based on tap water, which represents the real laundry water in the terms of quality. As greywater treatment solutions, in terms of physical pre-treatment procedure we used a sand filtering method, and in terms of chemical processes we used coagulation and oxidation. Based on treatment efficiencies, we can say that the treatment procedures can achieve significant quality improvements, but none of the methods can achieve the required cleaning efficiency by itself. In order to reach the optimum quality parameters, the use of combined methods is required.
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