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Environmental Engineering Commons™

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1998

Articles 1 - 4 of 4

Full-Text Articles in Environmental Engineering

Sorption Measurements And Behavior Of Monosodium Methanearsonate And Arsenic (+5) In Aqueous Suspensions Of Floridian Soil Fractions, George William Di Carlo Aug 1998

Sorption Measurements And Behavior Of Monosodium Methanearsonate And Arsenic (+5) In Aqueous Suspensions Of Floridian Soil Fractions, George William Di Carlo

FIU Electronic Theses and Dissertations

Adsorption experiments using both monosodium methanearsonate (MSMA) and its inorganic degradation by-product species As(+5), as sodium arsenate Na2AsO4, were conducted to evaluate the sorptivity of these constituents to various fractions of soil samples taken from the West Palm Beach Country Club. Adsorption data were analyzed with common isotherm equations (i.e., Linear, Freundlich, Langmuir) to determine Kd for each arsenic (As) species/soil fraction. Simulations using a one-dimensional pesticide transport model, PRZM 2.0, were completed to evaluate possible dissolved concentrations of arsenic at the water table interface under 8 different application scenarios for the soil profile found …

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Managing Infiltration Inflow In Wastewater Collection Systems (1998), Sharon Rollins Jul 1998

Managing Infiltration Inflow In Wastewater Collection Systems (1998), Sharon Rollins

MTAS Publications: Full Publications

An overview of I/I problems caused by ground water and surface or rainwater.

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Binder Containing Plant Protein And Densified Refuse Fuel Cubes Made Using Same And Methods Of Making Them, Jerry D. Eastin, David Jones, Darin Dux, Harold Earl Egger Jan 1998

Binder Containing Plant Protein And Densified Refuse Fuel Cubes Made Using Same And Methods Of Making Them, Jerry D. Eastin, David Jones, Darin Dux, Harold Earl Egger

Department of Biological Systems Engineering: Papers and Publications

To form a binder from naturally occurring products or a fuel brick or pellet using the binder without extraction or purification steps, the binder utilizes proteins from the germ or endosperm of cereal grasses or from the seed of buckwheat, oil seed plants, Amaranthus or leguminous plants or from leaves or from grain stillage. The protein has a thermoplastic microstructure with linear polymers of molecular weight of at least 2,000 linked with peptide linkages of at least 50 in number. The binder is mixed with waste such as municipal waste without further processing and processed in a pelleting machine.

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Evaluation Of Toxicity, Bioavailability And Speciation Of Lead, Zinc And Cadmium In Mine/Mill Wastewaters, Mujde Erten-Unal, Bobby G. Wixson, Nord Gale, Jerry L. Pitt Jan 1998

Evaluation Of Toxicity, Bioavailability And Speciation Of Lead, Zinc And Cadmium In Mine/Mill Wastewaters, Mujde Erten-Unal, Bobby G. Wixson, Nord Gale, Jerry L. Pitt

Civil & Environmental Engineering Faculty Publications

The toxicity of common compounds of lead, cadmium and zinc was evaluated in waters similar to that found in the world's largest lead producing area in Missouri. Static, acute toxicity tests were performed using fathead minnows (Pimephales promelas) and water fleas (Daphnia magna) respectively. Test organisms were subjected to varying amounts of sulfide, carbonate, chloride and sulfate salts of lead, zinc and cadmium mixed in hard, alkaline waters typical to this region. Median lethal concentrations were calculated using nominal versus measured metal concentrations. Measured metal concentrations included four different metal fractionation (extraction/filtration) techniques at different pH …

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