جامعة الكوت - University of kut - بحوث ميعاد مكي فيصل

السنة	عنوان البحث	نشر البحث
2025	Efficiency of Treatment Plant and Drinking Water Quality Assessment in Al-Numaniyah City, Iraq.	AL-KUNOOZE SCIENTIFIC JOURNAL
Abstract: This study aimed to know the purity and suitability of drinking water produced from the Al-Numaniyah city water treatment plant, and to compare the properties of this water with Iraqi and international standard drinking water, and to know the presence of potential pollution points. Physical, chemical and biological tests were conducted on drinking water, and monthly samples were taken from September 2022 to August 2023, for a period of one year. This study has found that: water temperature values ranged between (11-35) , turbidity values (2-68) NTU, Electrical conductivity (980-1375) μS. cm-1, and total dissolved solid (655-893) mg/L. It was found that the drinking water at Al-Numaniyah city studied was basophilic (pH =7.2-8.1) with free residual chlorine values recorded varied monthly (0.46-3.1) mg/L. It was evident the total hardness was high and ranged between (320-519) mg / L, and sulphate values ranged between (300-437) mg/L. The highest bacterial count was recorded at raw water (R) the during January 2023 (905 cell /1 ml), whereas the lowest value was found during April 2023 (Zero cell /100ml). whereas numbers of E.coli were (0-433) cell/100 ml. The results of the water quality index (AW-WQI) showed that all the collected drinking water samples were considered to be of poor quality (51-75) to very poor (76-100). The results showed that all the water quality parameters are exceed maximum permissible limit values recommended by World Health Organization (2017) and Iraqi drinking water standards (417/2011), except pH, EC and TDS. In terms of water quality index (AW-WQI), the results showed that poor quality (51 - 75 ) for all season according to the classification of Arithmetic Weighted Index except the winter is very poor (76-100).