Heave Distress Problems in Chemically-Treated Sulfate-Laden Materials

Estuarine Acidification Caused by Drainage of Pyritic Sediments in Coastal Lowlands

Fouling of Nanofiltration Membranes due to Calcium Sulfate Precipitation in Treatment of Agricultural Drainage Water

Limited Aeration of Methanogenic Systems for Treatment of Sulfate-Containing Wastewater

Environmental Design Factors for Concrete Pressure Pipe

Freeze-Thaw Durability of Concretes With and Without Class C Fly Ash

California Aqueduct Modeling Package (CAMP)

Comparison of Mass Size Distribution and Flux of Sulfate and Nitrate in Urban and Non-Urban Areas

Fluxes and Mineralizers in the Clinkering Process

Sensitized Photooxidation of Dissolved Sulfides in Water
The ability of methylene blue (MB) and riboflavin (RF) to sensitize dissolved sulfides for photooxidation was investigated. Both MB and RF were found to be effective sensitizers for the...

Biological Removal of Heavy Metals by Sulfate Reduction Using a Submerged Packed Tower

A Modified Sulfate Process to Lunar Oxygen
A modified sulfate process which produces oxygen from iron oxide-bearing minerals in lunar soil is under development. Reaction rates of ilmenite in varying strength sulfuric acid have...

Acidic Polysaccharides from Marine Organisms
Different types of acidic polysaccharides have been extracted from various marine organisms. The chemical composition and structural studies of these molecules established that the main...

Interruption of Sewer Crown Corrosion—Ecological Solutions
Competitive inhibition of acid production by thiobacilli was investigated by encouraging the growth of potential competitors. Two-organism competition experiments (Thiobacillus sp. vs....

Effects of Uranium Mining, Puerco River, New Mexico
Effluent from uranium-mine dewatering and acidic water released by a tailings-pond dike failure increased radionuclide activities in streamflow in the Puerco River in New Mexico and Arizona....

Use of Polyaluminum Sulfate

Permeability Effects on the Sulfate Resistance of Concrete
A laboratory study was conducted to determine the effect of permeability on the sulfate resistance of concrete containing fly ash. Concrete specimens were moist cured for 7 and 100 days...

Sulfate Attack on Concrete Containing Fly Ash
The use of fly ash as a portland cement replacement in concrete may provide many technical and economic advantages. One such technical advantage is to improve the resistance of concrete...

Sulfated Polysaccharides from Marine Invertebrates
The authors Laboratory is involved in the chemical and structural determination of sulfated polysaccharides from different sources. The main purpose of such studies is to compare these...

Fate and Effect of Carbon Tetrochloride and O-Xylene on Anaerobic Systems with Sulfate Reducing Bacteria
The fate and effects of o-xylene and carbon tetrachloride on methanogens and sulfate reducing bacteria were investigated using serum bottles. Up to 750 mg/1 of o-xylene did not cause any...

 

 

 

 

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