Water Selenium Articles & Analysis
11 articles found
Summary Effluent water from client containing 184 ppb total and 182 ppb dissolved selenium at pH 7.62 was sampled for investigation of chemisorption removal by Sorbster® media. Selenium in this water was reduced an average of 76% by Sorbster® media to levels as low as 35 ppb at a 25 minute water-to-media ...
A pond water containing 8.0 ppb dissolved selenium @ pH 7.00 was sampled to Sorbster for investigation of chemisorption removal by Sorbster® media. Selenium in this water was removed by Sorbster® media to an average of 2.25 ppb in a single column pass at a 26.7 minute water-to-media contact time to ...
The selenium in these waters is generally present in a dissolved state and speciation studies report that the majority of this soluble selenium is present as the selenate (Se+6, SeO4) species. The University of West Virginia1 found that 90% of the selenium in the Mud River, WVA was present as selenate and selenate was measured at ...
A pond water containing 8.0 ppb dissolved selenium @ pH 7.00 was sampled to Sorbster for investigation of chemisorption removal by Sorbster® media. Selenium in this water was removed by Sorbster® media to an average of 2.25 ppb in a single column pass at a 26.7 minute water-to-media contact time to ...
The Sorbster® Selenium Removal System treats selenium contamination in industrial process, ground and wastewater systems. The system combines Sorbster® Se-1, a highly effective adsorbent media for selenite and selenate removal with selected pretreatments to maximize selenium removal. Pretreatments utilizing a silica removal media, ...
In order to study the hydrochemical characteristics and trace element contents of the natural waters of this region, 62 water samples were collected from Lan'gao area in the NDM. ...
Chlorinated water may have disagreable taste and smell. Some water works use aluminium salts to clean the water. ...
Predicting selenium bioaccumulation is complicated because site‐specific conditions, including the ionic composition of water, affect the bioconcentration of inorganic selenium into the food web. Selenium tissue concentrations were measured in Lemna minor and Pseudokirchneriella subcapitata following exposure to selenate and ...
An in situ caging study was conducted downstream of a metal mine in northern Canada to determine the significance of surface water vs. sediment exposure on selenium (Se) bioaccumulation in the benthic invertebrate Chironomus dilutus. Laboratory‐reared C. dilutus larvae were exposed to either site‐specific whole‐sediment and surface water or ...
Topics include analysis of effective water conservation case studies in the US; original survey insights on campus water efficiency implementation plans in the Northeast; the water-energy relationship; and strategic recommendations for water, energy and cost savings. ...
Chemical elements such as selenium, fluoride, iron, calcium and magnesium are essential to the human being, although some are toxic when absorbed in high doses. In this paper, the risks associated with insufficient and excessive intake of selenium in the diet are reviewed, focusing on drinking water. Two different approaches are used to derive ...