abstract from 165 millions cubic meters of water which is used in kalat region, 60 millions cubic meters is surface water and 105 millions cubic meters is underground water. most of water needed in this region, is provided by the rivers. there is not any problem for providing water in agricultural section, drinking water and hygiene sections in the region. the most important problem in the regi...

BACKGROUND Provision of good quality household drinking water is an important means of improving public health in rural communities especially in Africa; and is the rationale behind protecting drinking water sources and promoting healthy practices at and around such sources. OBJECTIVES To examine the microbial content of drinking water from different types of drinking water sources in Manonya...

Biological stability of drinking water refers to the concept of providing consumers with drinking water of same microbial quality at the tap as produced at the water treatment facility. However, uncontrolled growth of bacteria can occur during distribution in water mains and premise plumbing, and can lead to hygienic (e.g., development of opportunistic pathogens), aesthetic (e.g., deterioration...

AIMS The objective of the study was to compare ultraviolet (u.v.) inactivation kinetics of indigenous aerobic spores in surface water with their laboratory-cultured spore isolates and to investigate the relationship between physicochemical characteristics and u.v. inactivation kinetics of spore isolates. METHODS AND RESULTS Lake water samples were analysed for the presence of indigenous aerob...

Abstract The problems of providing the population with high-quality water for territories where sources are absent or do not meet hygienic requirements presented. It is shown that there no proper relationship between quality drinking and investments directed modernization treatment transportation technologies. it practically impossible to justify in supply within current tariffs water. possibil...

Introduction: Current legislation permits a phased achievement of drinking water quality standards by making decisions on temporary deviations from hygienic for the period design, construction, and/or upgrade supply facilities. Objective: To substantiate mechanism coordinating concentrations certain chemicals in implementing measures improvement. Materials and methods: We applied methods sanita...

The fully automated Colifast ALARM™ has been used for two years for daily monitoring of the presence/absence of Escherichia coli in 100 mL raw water at Oset drinking water treatment plant in Oslo, Norway. The raw water is extracted from 35 m depth from the Lake Maridalsvannet. E. coli was detected in 18% of the daily samples. In general, most samples positive for E. coli were observed during th...