INFLUENCE OF WATER AND SEWAGE TREATMENT PROCESSES ON DECREASING DIARRHEAL DISEASES IN MARSH COMMUNITY OF IRAQ

Abstract

Water contaminated by sewage or human excrement presents the greatest danger to public health associated with drinking water,and pathogens present in water are usually greatly outnumbered by normal intestinal bacteria, which are easier to isolate and identify. The coliform group merits consideration as an indicator of water pollution because these bacteria are always present in the intestinal tracts of humans and other warm-blooded animals and are excreted in large numbers in faecal wastes , so in case of discharging sewage disposals under untreated conditions , coliform group appears as a focus of water contamination . The present study aimed to confirm the influence of rehabilitation water and sanitation facilities on decreasing diarrheal cases among marsh community . Multiple tubes fermentation method was used in present paper, included Measurement of Most Probable Number of E.coli which incubated under 44 C˚. Results of our present study revealed that diarrheal cases among marsh community children have been decreased from 139 to 49 case after construction new water facility and decrease of E.coli from >10 to < 10 colonies per 100ml due to treatment process of waste water . Conclusions of present study confirmed that untreated sewage influents consider the main key factor for possibility of spreading E.Coli in untreated drinking water which contribute in increasing of morbidity cases among children under years of age