نتایج جستجو برای: water quality standards

تعداد نتایج: 1337944  

Journal: :اکو هیدرولوژی 0
عبدالرسول زارعی استادیار، گروه مرتع و آبخیزداری، دانشکدۀ کشاورزی، دانشگاه فسا محمد جواد امیری استادیار، گروه مهندسی آب، دانشکدۀ کشاورزی، دانشگاه فسا

quality properties of groundwater is one of the major components which can used for water resources management. in this study, spatial variability of groundwater quality for drinking uses (schoeller standards) and agricultural uses (wilcox standards) was investigated during 1387-1392.in this research, we use information of 24 observation wells in fasa plain, to investigate the spatial variabili...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه خلیج فارس - دانشکده مهندسی 1393

in civil engineering concrete is a material combined of hydraulic cement, sand, gravel and water. gravel and sand compose 60 to 70 percent of concrete. these aggregates support compression force of concrete. cement paste acts as glue to stick grain together. in bushehr factories producing aggregates do not operate according to astm standards, so that fineness modulus (fm) of the produced sands ...

Journal: :Journal of environmental quality 2012
P A Chambers J M Culp E S Roberts M Bowerman

Global increases in consumption of chemical nutrients, application of pesticides, and water withdrawal to enhance agricultural yield have resulted in degraded water quality and reduced water availability. Efforts to safeguard or improve environmental conditions of agroecosystems have usually focused on managing on-farm activities to reduce materials loss and conserve habitat. Another management...

Journal: :Revista Panamericana de Salud Pública 2001

پورمقدس, حسین ,

Ground water is considered as a valuable resource for drinking, agricultural, and industrial uses. As human activities are known to affect water quality, studies of this source are necessary to maintain quality standards. Despite heavy agricultural and industrial activity in the Lenjanat region (Isfahan), there has been no evaluation of ground water quality in this area.In this research project...

Journal: :Journal of environmental management 2007
Jie-Chung Lou Wei-Li Lee Jia-Yun Han

Two surveys of consumer satisfaction with drinking water conducted by Taiwan Water Supply Corp. are presented in this study. The study results show that although a lot of money was invested to modify traditional treatment processes, over 60% of local residents still avoided drinking tap water. Over half of the respondents felt that sample TT (from the traditional treatment process) was not a go...

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