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Air Stripping of Volatile Organic Compounds Using Structured Media
Publisher: American Society of Civil Engineers
Abstract: Two types of structured media were evaluated for air stripping of volatile organic compounds. Both media proved effective in removing trichloroethylene, cis‐1,2 dichloroethene, chloroform and bromoform under a wide range ...
Molecular Weight Effects on THM Control by Coagulation and Adsorption
Publisher: American Society of Civil Engineers
Abstract: Three natural waters containing substantial levels of dissolved organic carbon were studied to assess the removal of aquatic organic matter and humic substances by coagulation and adsorption. As a general trend, alum ...
Incorporation of Submicron Colloids into Larger Floc in Water Treatment
Publisher: American Society of Civil Engineers
Removal of Dissolved Organic Matter by Nanofiltration
Publisher: American Society of Civil Engineers
Abstract: "A nanofiltration module is studied to determine its ability to remove dissolved organic matter (DOM) from two water sources: An effluent-impacted ground water and a low-turbidity surface water. Both feed and product waters ...
Interactions between Ozone, AOM, and Particles in Water Treatment
Publisher: American Society of Civil Engineers
Abstract: Algogenic organic matter (AOM) was extracted from each of two algae (
Modeling of NOM-Facilitated PAH Transport through Low- <i>f <sub>oc</sub></i> Sediment
Publisher: American Society of Civil Engineers
Abstract: A finite-difference model was developed to more closely examine the observation that polycyclic aromatic hydrocarbon (PAH) transfer to and from low-organic-carbon aquifer sediment and aqueous natural organic matter (NOM) ...
Evaluation of Factors Affecting Performance of Direct Filtration
Publisher: American Society of Civil Engineers
Abstract: The effects of selected initial conditions and operating parameters on the direct filtration process are evaluated by using a synthetic water/benchscale apparatus. An orthogonal design of the controlled experimental ...
Removal of Organic Matter in Water Treatment
Publisher: American Society of Civil Engineers
Abstract: The performance of several types of water treatment plants in removing various molecular weight (MW) fractions of naturally occurring aquatic organic matter and humic substances is described. An assessment was made of the ...
Empirical Models for Disinfection By-Products in Lakes and Reservoirs
Publisher: American Society of Civil Engineers
Abstract: Simple budget models and correlations have been useful in providing order-of-magnitude estimates of eutrophication variables and toxic organic chemicals in lakes and reservoirs. A similar approach is used here to develop ...
Molecular Ozone and Radical Pathways of Bromate Formation during Ozonation
Publisher: American Society of Civil Engineers
Abstract: An understanding of bromate formation mechanisms is critical for minimization and control of bromate formation during ozonation. Bromate formation observed in different natural source waters in the presence of a hydroxyl ...
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