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This research focused on the use of sonication to destroy surfactants and surface tension properties in industrial wastewaters that affect traditional water treatment processes. We have investigated the sonochemical destruction of surfactants and a chelating agent to understand the release of metals from surfactants during sonication. In addition, the effects of physical properties of surfactants and the effect of ultrasonic frequency were investigated to gain an understanding of the factors affecting degradation.
Successful partial or total destruction of surfactants resulting in the release of metals bound to surfactants may result in a significant cost savings of treatment plants.
Cryptosporidium Removal, Occurrence, and Inactivation Methods for Wastewater
Treatment of drinking water was once considered sufficient for reducing the risk of infection from pathogenic organisms. However, as our knowledge of established and emerging pathogens in water...
Diagnostic Tools to Evaluate Impacts of Trace Organic Compounds (Prioritization Framework for TOrCs)
With the advent of improved analytical detection capabilities, a variety of organic chemicals have been found in trace amounts (Trace Organic Chemicals, TOrCs) in surface waters, sediment, and...
Development of a Protocol for Risk Assessment of Microorganisms in Separate Stormwater Systems
Recent research has shown that the concentrations of microbial indicator organisms (e.g., fecal coliforms) in stormwater may be quite high. However, studies have not clearly established...
Identification of Barriers to Energy Efficiency and Solutions to Promote These Practices
Successful deployment of energy efficiency initiatives may be increased by recognizing barriers and advancing strategies that overcome them. A national survey recently collected input on barriers...
Desalination Technology
Desalination Technology: Health and Environmental Impacts covers the latest developments in desalination, examining the environmental and public health-related impacts of these technologies....
Strategic Risk Communications Process for Biosolids Land Application Programs
The long-term viability and sustainability of biosolids land application is dependent on continuously earning stakeholder confidence, trust and support. This requires ongoing and effective...
Pharmaceuticals in the Environment
About 4000 medical compounds are being used in the drugs applied today. It is estimated that worldwide consumption of active compounds amounts to some 100 000 tons or more per year. Consequently,...
Application and Optimization of the Galvano-Coagulator Process To Heavy Metal Waste Streams
The galvano-coagulator is a technology developed in the former Soviet Union in the 1980s. The major feature of the technology is that it appears to be an effective process in hexavalent chromium...