نتایج جستجو برای: environmental harms and water discharge standards
تعداد نتایج: 16990906 فیلتر نتایج به سال:
In attention to healthy risks of effluent discharge of wastewater from treatment plants to water sources and use in agriculture , this study was carried out for quality assessment of effluent discharge from Serkan wastewater treatment plant in Serkan , Hamadan, Iran in summer 1999. ...
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...
Constructed wetlands are engineered to duplicate the processes occurring innaturalwetlands. Themain purpose of structure is remove contaminants or pollutants from wastewater. wetland a new, creative, cost-effective, and green technology compared conventional treatment systems. Water hyacinth couldbe cultivated for wastewater utilised aid purification either industrial sewer water. Consequently,...
Background and Objective: Nowadays, swimming pools as a sport and entertainment center have found more popularity. Violation of health based standards in terms of physicochemical, microbial and environmental health indices can turn pools into a potential source of disease transmission and spread. Due to the importance of maintaining swimmers’ comfort, health, and safety, the present study was a...
Knowledge of river discharge and water-quality trend can be useful for planning and management of water resources. Due to the fact that the river base flow is supplied by ground water, considering of base flow for managing environmental demand. The Mann-Kendall's test is one of the approaches which is used for investigating of the trend in time series. In this study, the Mann-Kendall's tes...
In this study, the Li-ion batteries temperature increase during the discharge process was measured empirically and evaluated using numerical simulation. Moreover, the battery packs cooling using the water, air and water-nano composition fluids such as water-alumina, water-copper oxide, and water-gold was studied through numerical simulation. Accordingly, the battery cooling was simulated by CFD...
Background and Objective: Due to the vulnerability of water resources, quality control of surface water is one of the key issues in environmental conservation programs. In recent years, Anzali wetland has been exposed to numerous threats, including environmental pollutants. TOPSIS is an efficient and reliable way to assess the quality of water resources. Materials and Methods: In order to eval...
in this research the focus of the researcher is on the influence of american myths that have long been held and offered by the american culture and ideologies. sam shepard is conceived to be one of the greatest playwrights of the contemporary american theater. in his works he depicts broken characters who are struggling to keep up with the national expectations but are ceaselessly borne back to...
introduction coastal towns have specific positions due to the possible utilization of sea and attraction tourists. finding useful methods of sewage disposal at lower costs and higher efficiency and also expandable in terms of the capacity of coastal towns is very important. releasing residential sewage of chalous city into the caspian sea makes marine environment a source of raw wastewater and ...
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