نتایج جستجو برای: water quality standards

تعداد نتایج: 1337944  

ژورنال: سلامت و محیط زیست 2020

Background and Objective: Increased untreated wastewater and unsustainable development of agriculture has deteriorated water quality of rivers. The aim of this study was to determine the quality of water in Gorganrud River basin using NSFWQI IRWQISC and Liou Pollution Index and compare them with the global standards. To do this, GIS software.was used Materials and Methods: In this study, 5 sam...

Journal: Geopersia 2013
Amir Saberi Nasr Majid Dashti Barmaki Mohsen Rezaei

Fuzzy Water Quality Index (FWQI) was applied in order to assess the degree of drinking water resources in Yazd province, Iran. Thisstudy has also offered the creation of a new fuzzy water quality index (FWQI) to evaluate this tool’s applicability. 12 chemicalparameters including toxic and non-toxic heavy metals measured in 71 groundwater samples collected from drinking water resourcesin rural a...

Afshin Takdastan, Ramazan Motallebi, Zabihollah Yousefi,

Background: Reverse Osmosis (RO) is an increasingly common method of desalination. A full scale water desalination system by membrane technology (RO) evaluated in a southern city (Jask) in Iran. Methods: First, data collection on water supply and network were performed. Analysis on most of the water quality parameters (Turbidity, pH, EC, Cl-, Na+, Alkalinity, Ca, Na, K, No3, No2, Fe, Mg, Mn, NH...

Raafat Abdeldayem

Drinking water has received considerable attention recently. However, misuse and mismanagement have resulted in a rapid and widespread decline in source-water quality and supply. Water quality guidelines can be used to identify constituents of concern in water, to determine the levels to which the constituents of water must be treated for drinking purposes. Membrane technology for the water cyc...

The aim of this study was to assess the potential impact of Trout farm effluents on water quality of Zaringol stream based on NSFWQI and WQI indexes. Some physicochemical water quality parameters were measured from 14 point during December 2009 to September 2010 seasonality. The average value of NSFWQI is 53.21 and it shows spatial and temporal variation. The maximum value or best water quality...

2010
Ghazi A. Al-Rawas Caterina Valeo

Spatial data analysis, remote sensing and Geographic Information Systems (GIS) were used to study the ground water quality in the A’Seeb area of the Sultanate of Oman. Groundwater samples were collected from 335 wells distributed in A’Seeb in the northwestern part of the capital Muscat, Oman. The aim of this study was to identify the source of the water quality pollution, and characterize its e...

2014

Recent advances in real-time water sensing technology have enabled new opportunities for improved assessment and management of water distribution systems. The implementation of WaterWiSe, a real-time, on-line hydraulic and water-quality monitoring system in Singapore is helping improve efficiency and maintaining supply standards across the water distribution network. As its primary data source,...

2015
Hussein Ali Salah Mariana Mocanu Adina Magda Florea

A wide variety of specific Decision Support Systems have been and can be built using Internet and Web technologies. This paper was focused and developed application of water DSS (Building Web-based and Inter organizational Decision Support Systems for water management). This paper aims at presenting an application for decisions in ecosystem analysis. We consider contemporary Decision Support Sy...

2014
Meha Jain Yili Lim Javier A. Arce-Nazario María Uriarte

Identifying which factors influence household water management can help policy makers target interventions to improve drinking water quality for communities that may not receive adequate water quality at the tap. We assessed which perceptional and socio-demographic factors are associated with household drinking water management strategies in rural Puerto Rico. Specifically, we examined which fa...

Journal: :Water environment research : a research publication of the Water Environment Federation 2015
Kenneth Schiff Brenda Luk Dominic Gregorio

Marine protected areas worldwide limit harvest to protect sensitive fisheries, but rarely do they address water quality goals that may have equally demonstrable impacts. California has over 500 coastal shoreline miles of marine protected areas designated as Areas of Special Biological Significance (ASBS), but receives untreated wet weather runoff discharges from over 1600 storm drain outfalls. ...

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