Modeling Membrane Concentrate Disposal Options

Membranes in Water Treatment
Membrane technology, using reverse osmosis to treat drinking water, is a promising alternative to conventional treatment. The method is now being used for desalination in a growing number...

Validity of Electro-Osmosis for Soil Decontamination
The subject matter of this paper is electro-osmosis in fine grained soils. A simple instrument has been developed to simulate this phenomena in the laboratory. A series of experiments...

Economic Evaluation of Treatment Alternatives for Nitrate-Contaminated Water Supplies
This paper discusses the economic feasibility of removing nitrates from water supplies. Potential nitrate treatment methods include ion exchange, reverse osmosis, bio-denitrification,...

Development of a Two-Stage Membrane-Based Wash-Water Reclamation Subsystem
A two-stage membrane-based subsystem was designed and constructed to enable the recycle of wash waters generated in space. The first stage is a fouling-resistant tube-side-feed hollow-fiber...

Agricultural Contaminants Removal from Groundwater by Carbon and Reverse Osmosis

Initial Results From an In-Situ Consolidometer
An In-Situ Consolidation Evaluation Device (ICED) was developed for field measurement of consolidation parameters by electro-osmosis. A brief description of the test apparatus and the...

Conventional Machinery/Unconventional Applications
The U. S. Bureau of Reclamation has become increasingly involved in small-scale hydroelectric projects involving unconventional applications for conventional hydraulic machinery. One ongoing...

Problems in Design of Small Reverse Osmosis Water Purification Systems
Small reverse osmosis water purification systems may be defined as those systems which produce from 100 to 20,000 gallons of water per day. This paper identifies some of the common problem...

Ion Exchange and Membrane Processes for Nitrate Removal from Water

Dewatering Coal Sludge by Pressurized Electroosmosis

Practical Use of RO in Wastewater Reclamation

Electro-Osmosis Chemistry and Water Quality
Electro-osmosis (E-O) is an effective method for stabilizing fine grained soils; the process has been used for man years for stabilizing cut slopes and embankments, and for dewatering...

Organics in Water — An Engineering Challenge
Efforts should be made to reduce the presence of organic contaminants in water because of their potential for causing cancer, a disease equal in magnitude to the infectious diseases of...

Small Water Systems: Role of Technology
Over 90% of the nation's water supplies serve fewer than 10,000 people, less than 25% of the total population. Many of these small systems have problems. One of the major...

In-Situ Volume-Change Properties by Electro-Osmosis - Theory
The basic concept involves incorporation of a simple electrode system in a field probe, measurement of pore-water pressure changes at the electrodes as a function of time in response to...

In-Situ Volume-Change Properties by Electro-Osmosis — Evaluation
A method of in-situ testing using electro-osmosis to obtain mass consolidation properties of fine-grained soils under load was evaluated by experimental studies conducted in the laboratory...

Judiciously Planned Bench Scale Studies are Extremely Valuable in AWT Process Selection

Alternatives for Reducing Nitrate in Municipal Supplies at McFarland, Calif.

Occurence of Organic Compounds and Removal by AWT Processes

 

 

 

 

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