Removal of Selenium in Drinking Water by Manganese Greensand, Iron Oxide-Coated Sand and Ion-Exchange Resin

Remediating Selenium Impacts on Endangered Fish in the Upper Colorado River

Trace Element Investigations Before Irrigation Development

Drainage Ponds and Demonstration Wetlands
In California's southern San Joaquin Valley, subsurface irrigation drainage pumped into shallow evaporation ponds often contains elevated concentrations of selenium. The selenium...

Agroforestry as a Method of Salt and Selenium Management on Irrigated Land in the San Joaquin Valley
Since 1985, several San Joaquin Valley growers, with the support of State and federal agencies, have attempted to manage salt and selenium using agroforestry. Numerous studies and research...

Dynamic vs. Quasi-Static Effluent Limits
Selenium water quality objectives are currently being exceeded in the San Joaquin River, California due to agricultural subsurface drainage discharges. The Federal Clean Water Act requires...

Sources and Circulation of Salt in the San Joaquin River Basin
Historical data and a water quality model were used to quantify the sources of salt, boron and selenium in the lower San Joaquin River (SJR) basin, California. Mean monthly data for sources...

Economic Issues Regarding Water Quality Objectives in the Grassland Basin
A conceptual framework is presented for evaluating the potential costs and benefits of water quality objectives in the Grassland Basin. The investments and expenditures required to achieve...

Selenite Transport in Unsaturated Tuff From Yucca Mountain

Food-Chain Transfer of Trace Elements to Wildlife
Trace elements in agricultural subsurface drainage water may bioaccumulate in wildlife through their feeding on organisms living in evaporation ponds or other habitats that receive the...

Development of a Selenium TMDL for the San Joaquin River
The objective of this study is to devise a user-friendly, reliable method to calculate a screening-level 'Total Maximum Daily Load' (TMDL) for the San Joaquin River and similar western...

Subterranean Disposal of Irrigation Drainage Waters in Western San Joaquin Valley
Subsurface drainage waters in the western San Joaquin Valley of California are laden with selenium and other toxic elements and above-ground disposal creates a hazard problem (Letey et...

Overview of the Department of the Interior's National Irrigation Water Quality Program
The Department of the Interior National Irrigation Water Quality Program was started in 1985 in response to concerns about contamination of water, bottom sediment and biota in National...

Selenium in Soil, Water, Sediment, and Biota of the Lower Sun River Area, West-Central Montana
A U.S. Department of the Interior study started in 1990 examined the source, movement, fate, and possible biological effects of selenium associated with irrigation drainage from the Sun...

Planning for Remediation of Irrigation-Induced Water Quality Problems in the Middle Green River Basin, Utah
Reconnaissance investigations and detailed studies between 1986-1990 under the National Irrigation Water Quality Program of the Department of the Interior identified and quantified elevated...

Pilot-scale Anaerobic Biological Removal of Selenium from Agricultural Drainage Water Using Sequencing Batch Reactors

Effects of Drainage on Water, Sediment and Biota
The U.S. Department of the Interior started a program in 1985 to identify effects of irrigation-induced trace constituents in water, bottom sediment and biota. The program was developed...

Evaluation of Conjunctive Use and Drainage Reduction Strategies
Optimal drainage management strategies for control of salt and selenium contamination problems in the San Joaquin Valley of California must recognize subregional differences in groundwater...

Stochastic Modeling of Water Quality in the San Joaquin River, California, Using Monte Carlo Simulation

Anaerobic Biological Reduction of Selenate
When soils with high concentrations of naturally-occuring selenium are irrigated and drained, selenium is leached from the soil and appears in the drainage water. Selenium has caused death...

 

 

 

 

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