Problem: Nitrate, the most stable form of nitrogen in water, is found in both ground and surface water and originates from both natural and anthropogenic sources. Due to its high solubility in water, nitrate is not filtered out from groundwater like other contaminants. Removing nitrates from source water is important as elevated levels in drinking water can cause serious health effects when ingested.
By Real Tech Inc. based in Whitby, ONTARIO (CANADA).
Enhanced anaerobic biodegradation is the practice of adding hydrogen (an electron donor) to groundwater and/or soil to increase the number and vitality of indigenous microorganisms performing anaerobic bioremediation (reductive dechlorination) on any anaerobically degradable compound or chlorinated contaminant. The most commonly targeted chlorinated groundwater contaminants are primarily used in industry as degreasing agents and include: Perchloroethylene (PCE), Trichloroethylene (TCE), Dichloroethylene (DCE), Vinyl Chloride (VC).
Other anaerobically degradable compounds include: carbon tetrachloride, chloroform, methylene chloride, certain pesticides/herbicides, perchlorate, nitrate, nitroaromatic explosives (TNT, RDX), dyes and chlorofluorocarbons (CFC’s).
By Regenesis based in San Clemente, CALIFORNIA (USA).
Since nitrates are very soluble and do not bind to soils, they have a high potential to migrate to groundwater. For the short-term, excessive levels of nitrate in drinking water have caused serious illness and sometimes death. The serious illness in infants is due to the conversion of nitrate to nitrite by the body, which can interfere with the oxygen-carrying capacity of the child’s blood. This can be an acute condition in which health deteriorates rapidly over a period of days. Symptoms include shortness of breath and blueness of the skin.
By PuriTech Ltd based in Herentals, BELGIUM.
Determination of water-soluble forms of inorganic and organic anions in soils, clays, peat, wastewater silt, activated sludge, and bottom sediments
The method allows determination of water-soluble forms of inorganic (chlorides, sulfates, nitrates, fluorides and phosphates) and organics (acetates, formates, and oxalates) anions in soils, clays, peats, wastewater silts, activated sludges and bottom sediments by capillary electrophoresis method.
By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).
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