nitrate in drinking water Articles
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Ionex- Versatile ion exchange technology for Nitrate removal
Belgian separations technology company PuriTech (www.puritech.be) has designed an ion exchange system that improves liquid–resin contact efficiency while reducing plant operating costs and capital expenditure. Targeted at a broad range of industries, one area where the system is now showing its strength is in the removal of nitrates from drinking water, asPuriTech's Filip Rochette explains. ...
By PuriTech Ltd
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The risk of cancer as a result of elevated levels of nitrate in drinking water and vegetables in Central India
The objective of the present study was to determine the effect of nitrates on the incidence of gastrointestinal (GI) cancer development. Nitrate converted to nitrite under reducing conditions of gut results in the formation of N-nitrosamines which are linked to an increased gastric cancer risk. A population of 234 individuals with 78 cases of GI cancer and 156 controls residing at urban and ...
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Study Quantifies Drinking Water Nitrate’s Role in U.S. Cancer Cases
Negative health outcomes from nitrate in drinking water hit farming communities particularly hard A new Environmental Working Group (EWG) study, published inEnvironmental Research, has estimated that nitrate contamination of drinking water will cause thousands of cancer cases annually in the United States. The cancers are also expected to run up $1.5 billion in medical bills each year, with ...
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Poly (Ε-caprolactone) as substrate for water denitrification
In this paper, poly (Ε-caprolactone) (PCL) was used as carbon source and biofilm supporter in a fixed bed bioreactor to biologically remove nitrate from drinking water. The experimental results showed that denitrifying microorganisms could easily adapt to PCL as carbon source and attach to the surface of PCL granules. The fine biofilm could form on the surface of PCL granules within 15 days. ...
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Effects of sulfate and nitrate on the taste of water: a study with a trained panel
The role of sulfate and nitrate in the taste of drinking water is not entirely clear. Taste threshold concentrations (TTCs) were estimated for these two species by the 3-AFC method by a trained panel, as sodium and calcium salts. In both cases TTCs for nitrate were about 100 mg NO3/L, twice the usual reference value of international recommendations. TTCs for sulfate were about 160 mg SO4/L ...
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Nitrate Removal by Countercurrent Ion Exchange
Nitrate removal technology by continuous countercurrent ion exchange from potable water. High flow capacity, low waste generation. This ICHEM award winning technology is the industry standard used in the United Kingdom. More than 20 installations installed. PuriTech's patented multi-port valve is at the center of each production skid. At average, each unit produces a maximum waste of 0,5% of the ...
By PuriTech Ltd
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Testing for Nitrates in Water, what are the Options?
Nitrate is a naturally occurring substance in the environment and is commonly found in most water sources, it is usually only a cause for concern in areas where water supplies can be affected by farm runs offs and agriculture, its use as a fertiliser can cause increased levels in water supplies The UK safe limit for nitrates in Drinking water is 50mg/l as described in the current advice on ...
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How can you remove nitrates from your well water?
Well contamination is increasing across the US Across the United States, more drinking water wells in agricultural areas are being contaminated with nutrients leaving farms and other agricultural operations. One of these common nutrients is nitrate or NO3. Nitrate is a primary drinking water standard. The maximum nitrate (MCL) allowed in drinking water is 10 mg/L of nitrate as nitrogen or NO3-N. ...
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Nitrate Analysis of Water Samples Using a Benchtop UV-Vis Spectrophotometer
Nitrogen is naturally found in groundwater and surface water in the form of nitrate, nitrite, or ammonium. The EPA has established a maximum contaminant level of nitrate-nitrogen in potable water of 10ppm. This application presents results of UV-Vis analysis of nitrate concentrations in drinking water, ground water, and industrial wastewater, showing that the manual colorimetric method is ...
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Nitrate Pollution Affects Millions in U.S.
According to new study, the water contamination disproportionately affects poor and Hispanic Americans Runoff of agricultural fertilizer is a major source of nitrate pollution in drinking water. A new study in the journal Environmental Justice has determined that 5.6 million Americans served by community water systems (CWSs) in the United States are exposed to excessive nitrate levels in ...
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Nitrate Monitoring Simplifies Drinking Water Management
Nitrate in source water can be challenging to manage and lead to potential non-compliance issues. Continuous monitoring of nitrate enables you to keep a real-time pulse on nitrate concentrations from source water to finished water, offering many benefits: Compliance with drinking water standards for nitrate Optimized blending ratios to maximize water use Efficient nitrate treatment with ion ...
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What are the 8 water quality testing parameters?
Water is an essential resource, and its quality is vital to ensure the well-being of individuals and the environment. Therefore, water quality testing is a crucial process that needs to be conducted periodically to assess the suitability of water for various purposes. In this blog post, we will discuss the eight parameters that are commonly tested to determine water quality. 1. pH Level The pH ...
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Case Study: WTP Optimizes Well Blending with Online Nitrate Analyzer
The Village of Port Williams is a thriving agricultural community in Nova Scotia, Canada. Like many agricultural communities, long-term fertilizer application to the land has led to elevated levels of nitrate in groundwater. Nevertheless, the local water supply plant continuously produces high quality drinking water. With a reliable nitrate monitoring system from Real Tech and a solid management ...
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Groundwater Nitrate Monitoring Applications
Nitrate in source water can be challenging to manage and lead to potential non-compliance issues. Continuous monitoring of nitrate enables you to keep a real-time pulse on nitrate concentrations from source water to finished water, offering many benefits: Compliance with drinking water standards for nitrate Optimized blending ratios to maximize water use Efficient nitrate treatment with ion ...
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Wastewater. One Name, Many Terms | A Wastewater Glossary | YASA ET Tips
Wastewater, also referred to as sewage, includes water from household or building use (such as toilets, showers, and sinks) that can contain human faecal waste, as well as water from non-household sources (such as rain and industrial use) which for this reason contain organic and inorganic substances that can damage health and the environment. These types of water, after their use, cannot ...
By YASA ET
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How does our nitrate removal system differ from reverse osmosis (RO) systems?
Reverse osmosis (RO) systems are the workhorse of the drinking water purification market. They are extremely effective in separating water impurities above a certain size (molecules or particles slightly large than a water molecule are filtered or removed). So, does RO eliminate or reduce nitrate? The answer is no. Some RO membranes will remove the nitrate molecule from the incoming water and ...
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Public health perspectives of channelized and unchannelized headwater streams in central Ohio: a case study
Headwater streams constitute the majority of watersheds in the United States and many in the midwest have been channelized for agricultural drainage. Public health implications of water chemistry and aquatic insects within channelized and unchannelized headwater streams have not been explored. We sampled water chemistry and aquatic insects in two channelized and two unchannelized headwater ...
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Nitrate Pollution of Groundwater
What are some of the environmental and health issues surrounding nitrate in groundwater, and options to resolve them? Nitrogen is a naturally occurring element that is essential for life on Earth. It makes up 78% of the air we breathe and is essential for plant and animal growth. However, when too much nitrogen is present in fresh water, it can cause environmental problems and contaminate ...
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Nitrate and Nitrite Levels of Potable Water Supply in Warri, Nigeria: A Public Health Concern
In this study, the authors investigated the nitrate and nitrite in different water sources (surface water, shallow well water, and borehole water) in the market and industrialized areas of Warri in the Niger Delta area of Nigeria. The authors’ goal was to find the comparative levels of nitrates and nitrites from these two parts of the community. They selected five sampling sites from ...
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U.S. EPA approves first enzymatic method for SDWA reporting of nitrate
The US Environmental Protection Agency periodically updates methods laboratories can use for protecting the quality of the nation's drinking water. The Safe Drinking Water Act office of the EPA published its list of Alternate Test Protocols (ATP) in the Federal Register in July 2016. The list includes NECi Superior Enzymes' enzyme-based nitrate test method. NECi/SE, a small biotechnology firm ...
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