نتایج جستجو برای: kashan rural water and wastewater company
تعداد نتایج: 16978332 فیلتر نتایج به سال:
The aim of this project was to remove chloride ions from Eshidiya industrial waste water to be reused in the flotation cells. The industrial wastewater was treated by passing it through ion exchange column. During the experiments, two types of resins were used: anion resin and mixed resin (cation / anion).The selectivity coefficient and the separation factor were calculated in those experiments...
The aim of this study was to investigate the impact of management information system on employees’ performance of Tehran Province Water and Wastewater Company in district 5. The present study was an applied research in terms of purpose and a descriptive correlational survey in terms of method. Cochran's formula was used to determine sample size which was 219 employees. The statistical sample wa...
This study was undertaken to evaluate a novel aerobic wastewater treatment model for the remediation of refinery effluents and to assess the removal efficiency of Bulkholderia cepacia strain AJI and Corynebacterium kutscheri strain AJ2 to clean oil waste from petrochemical company. Wastewater quality parameters including pH, BOD5, COD, TDS, OIL & GREASE, PHENOL concentration, TPH and THC were m...
Background and Objective: Scaling and corrosion both are destructive to materials (usually metals) in water supply systems. A dataset (from 2002 to 2013) of groundwater resources (including springs, qanats, deep wells and semi-deep wells) were examined for water tendency to corrosion or scaling in rural regions of Kashan, a city in Isfahan, central Iran. Materials and Methods: Water quality pa...
introduction: water scarcity is an important challenge worldwide, especially in arid and semi-arid regions. in these areas, the excessive exploitation of groundwater for irrigation, inefficient irrigation methods, irrigation with low-quality water and uncontrolled utilization of fertilizers in agricultural lands in addition to contamination of water resources by domestic and industrial wastewat...
Background and purpose: Acanthamoeba spp. are an opportunistic protozoan in environmental sources that can cause respiratory infection and keratitis. The present study was conducted to determine the prevalence and genotypes of Acanthamoeba in rural drinking water sources in Kashan and Aran-Bidgol, Iran. Materials and methods: In this study, 162 samples from 54 drinking water sources were colle...
in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...
Cryptosporidium and Giardia pose a threat to human health in rural environments where water supplies are commonly untreated and susceptible to contamination from agricultural animal waste/manure, animal wastewater, septic tank effluents and septage. Our goals for this paper are to: (1) explore the prevalence of these protozoan parasites, where they are found, in what quantities, and which genot...
*Department of Microbiology, Kashan University of Medical Sciences and Health Services, Kashan, Iran. **Department of Neonatology, Kashan University of Medical Sciences and Health Services, Kashan, Iran. ***Department of Pediatrics, Kashan University of Medical Sciences and Health Services, Kashan, Iran. ****Department of Statistics, Kashan University of Medical Sciences and Health Services, Ka...
introduction food security over the past decade was one of the main objectives of rural development policies in many countries. agricultural policies such as productive improvement, conservation and utilization of water and land resources are being considered in the heart of development projects. among these initiatives to achieve improved quality of infrastructure, environment and welfare is t...
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