If the waste products distributed without any treatment in aquatic
recourses, they create several problems (e.g. the pathogenicmicro-organisms are responsible for illnesses
© IWA Publishing 2013 Water Practice & Technology Vol 8 No 3-4
433 doi: 10.2166/wpt.2013.044
transmission in human being and in other organisms, while the organic components, nitrogen and phosphorus
are mainly responsible for the unpleasant/undesirable pollution phenomena).