چکیده مقاله
Today, heterotrophic bacteria have been considered as HPC index as a supplement to coliformindex in water quality control In the present study, the HPC index in Zahedan drinking water wasevaluated and determined in accordance with the standard 80 water samples were preparedaccording to the national standard of Iran No 4208 based on the population of different areas ofZahedan freshwater distribution network, so that the entire distribution network is covered Samples were taken separately in two seasons, summer and winter 4 areas in areas with newdistribution network and made of polyethylene and 4 areas in areas with old distribution networkand cast iron were selected and 10 samples were taken from each area Samples were tested from8 am to 10 am under standard conditions for HPC, TOC, temperature, turbidity, free residualchlorine, PH and Do HPC test was performed by plate diffusion method In only two points, themaximum HPC level in summer was 300 CFU / ml, which was lower than the standard and withinthe allowable range There was a direct relationship between temperature, turbidity, pH and TOCof water with the growth of heterotrophic bacteria There was also an indirect relationship betweenthe amount of HPC and the amount of chlorine remaining in water and dissolved oxygen Networkage and material had no effect on HPC
کلیدواژهها
نویسندگان
Farzad Kadkhodaei
Master of Environmental Engineering majoring in Water and Wastewater, Islamic Azad University,Bandar Abbas Branch, Iran
Mohsen Vazifedoost
Department of food science and technology, Neyshabur Branch, Islamic AzadUniversity, Neyshabur, Iran
Hadi Hasannia
PhD student in the field of food science and engineering, majoring in food biotechnology, Neyshabur Branch,Islamic Azad University, Iran
Mahdi koolaji
Master of Healthcare Management, Zahedan University of Medical Sciences, Health of School,Environmental Health Engineering Department, Zahedan, Iran
شیوه ارجاع
Kadkhodaei, Farzad and Vazifedoost, Mohsen and Hasannia, Hadi and koolaji, Mahdi,1403,Survey of Microbial quality of drinking water of distribution system using heterotrophicbacteria plate count index in Zahedan-Iran 2011-2012,17th International Conference on Health, Treatment and Health Promotion,Tehran
ارائهشده در
مجموعه مقالات هفدهمین کنفرانس بین المللی بهداشت، درمان و ارتقای سلامت8 تیر 1403 · تهران