water quality Articles
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Dissolved Oxygen and Water Quality
Water is essential to life, and the quality of water is important for human health, aquatic life, and ecosystem balance. One important aspect of water quality is dissolved oxygen (DO), which is the amount of oxygen gas dissolved in water. In this article, we will discuss the significance of dissolved oxygen in water and how it affects water quality. ...
By LG Sonic
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Water Quality and Purity
Even an advanced country like the United States is facing significant water problems relating to availability, purity, and quality. Over 700 chemicals have been detected in U.S. drinking water as it comes out of the tap. EPA has classified 129 of them as being particularly dangerous. Drinking bottled water does not assure the absence of ...
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Water Quality - UN Water Policy Brief
This policy brief is a collaborative output of UN-Water members and partners directed at practitioners, policymakers and decision-makers in water resource management and other relevant sectors. The policy brief outlines the challenges and trends, drivers and impacts related to water quality. It also presents four strategies that form the basis of policy solutions. It concludes by detailing a ...
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Drinking Water Quality
The quality of drinking-water is a powerful environmental determinant of health. Drinking-water quality management has been a key pillar of primary prevention for over one-and-a-half centuries and it continues to be the foundation for the prevention and control of waterborne diseases. Water is essential for life, but it can and does transmit disease in countries in all continents – from the ...
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Water Quality Modelling
Water quality modelling involves the prediction of water pollution using mathematical simulation techniques. A typical water quality model consists of a collection of formulations representing physical mechanisms that determine position and momentum of pollutants in a water body. Models are available for individual components of the hydrological system such as surface runoff; there also exist ...
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Data capture ensures stable water quality
Blue Unit has over the last year and a half participated in a project that focuses on developing danish technologies. The case was given the title “Data capture ensures stable water quality”. You can read more in this case ...
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Ecological Water Quality - Water Treatment and Reuse
This book attempts to cover various issues of water quality in the fields of Hydroecology and Hydrobiology and present various Water Treatment Technologies. Sustainable choices of water use that prevent water quality problems aiming at the protection of available water resources and the enhancement of the aquatic ecosystems should be our main target. Continue reading the full ...
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Water quality measurement extreme
Background The characteristics of the Rio Tinto in the south-west of Spain, near Sevilla, are his ruby colour and the extremely sour pH-value between 0 and 2 pH-units. The river carries a mixture between poisonous heavy metals like copper, nickel, arsenic, iron and cadmium, dissolved in high-percent sulphuric acid. It’s not proved where these unusual conditions come from. As per current ...
By OTT HydroMet
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Recycled Water Quality
Matching recycled water quality to beneficial uses requires an understanding of health and environmental requirements. Measures to achieve appropriate recycled water quality are determined firstly by treatment. The degree of treatment depends in part on the source and the hydraulic and biochemical characters of the wastewater. Overall recycled water outcomes may also be controlled ...
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Do Septic Systems Affect Water Quality?
Around 25% of homes in the United States are not connected to the community sewage systems and have a separate septic system installed. The Environmental Protection Agency has found that at least 48.5% of homes in the State of North Carolina also have a septic system installed. For more information check out this blog: http://www.lakenormanseptic.com/do-septic-systems-affect-water-quality/ ...
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Water Quality Models
' In order to determine the impacts of a particular discharge on ambient water quality, it is usually necessary to model the diffusion and dispersion of the discharge in the relevant water body. The approach applies both to new discharges and to upgrading of existing sources. This note provides guidance on models that may be applicable in the context of typical Bank projects.' Introduction ...
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Water quality in healthcare
Rivers are important freshwater resources for many countries and human beings around the world. Social well being, economics and political development have been largely related to the availability and distribution of these freshwater resources. In many parts of the world the adverse health impacts of water supply from rivers, dam construction, irrigation development and flood mitigation have led ...
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Drinking Water Quality
Drinking water or potable water is water of sufficiently high quality that it can be consumed or used without risk of immediate or long term harm. In most developed countries, the water supplied to households, commerce and industry is all of drinking water standard, even though only a very small proportion is actually consumed or used in food preparation. Over large parts of the world, humans ...
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Bushfire and water quality
Bushfires pose a great risk to drinking water quality in water tanks, water catchment facilities and water supply infrastructure. Generation of large amounts of smoke, ash and debris leads to contamination of water in water tanks and on roof catchment infrastructure like gutters. In extreme cases, it is possible that fire retardants or foams used to control the fire may also be deposited on roof ...
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Water Quality Sensors
Background Water is the source of life, human life and production activities can not do without water. The quality of drinking water is closely related to human health. Water quality monitoring and control has become an important subject of modern science. The on-line water quality monitoring system can accurately, timely and comprehensively reflect the current water quality and development ...
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Meeting water quality specifications for 300 mm processing
Abstract This paper reviews the historical ultrapure water specifications and compares them to the specifications for state of the art 300 mm manufacturing. As the design rule has evolved to 0.13 μm, the ultrapure water specifications have made similar evolutions. This paper discusses these evolutions and focuses on the state of the art technologies that are available to meet these ...
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Water quality characteristics of different industrial wastewater by Delphi water quality index method
Water quality index (WQI) is a single value numerical expression, which can evaluate the quality of given water body at particular position and time. Five different industrial wastewaters WQI are formulated by Delphi process (before and after treatment) and the results obtained for each samples are reported. It has been observed that the individual parameters vary quite widely whereas when it is ...
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Water Quality Monitoring and Assessment
The book attempts to covers the main fields of water quality issues presenting case studies in various countries concerning the physicochemical characteristics of surface and groundwaters and possible pollution sources as well as methods and tools for the evaluation of water quality status. This book is divided into two sections: Statistical Analysis of Water Quality Data;Water Quality Monitoring ...
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