Replacing Water Hygiene Managemet Model with Water Quality Engineering Model, A Strategy for More Efficient Management of Potabale Water Supply and Distribution

Water quality is subject to judgement by three components: the protection of public health, public acceptance and impact on the acceptability and durability of facilities. In modern times, extraction of water resources before they are restored with a lack of discipline and regulations for efficient management of pollutants and protection of water has accelerated the deterioration of water quality and has caused unwanted changes in water resources. However, the social demand regarding the issue of water quality has extended beyond being healthy and having effect on public to areas of social satisfaction and facility protection. In such circumstances, water sanitation units in water companies will not be able to meet the demand of the public on the issue of water quality with traditional structure inspired by health institutions which judges the quality of water on aspects of its effect on the public health, so it is necessary for them to replace "water hygiene" model with "water quality engineering" model, considering the favorable idealistic horizon and having an evolutionary view. In this model, water quality engineer presents the best and most accurate inferences with a complete knowledge of the scientific principles and with the requirements of adaptive management, from raw data, laboratory indicators of efficient management, extraction and taking into account economic orders, risk assessment and technical and social requirements. Giving his opinion in decisions related to designing treatment processes and structures, storage and transport of water and selection of materials, he realizes the idea of engineering water quality.