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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.
Protocols for Assessing Condition and Performance of Water and Wastewater Assets
The purpose of this research was to provide a road map for the effective use of condition and performance assessment tools and techniques by water and wastewater utilities within the...
Reducing Peak RDII Flow Rates: Case Studies and Protocol
The purpose of this research project was to examine construction projects that successfully reduced Rainfall Dependent Infiltration/Inflow (RDII). The research began with a literature...
An Investigation into Biosolids Sampling and Handling Methods for U.S. EPA-Approved Microbial Detection Techniques
The objective of this research was to develop guidance for collecting samples of biosolids for microbial analysis to ensure representative samples are tested. The types of biosolids products...
Accounting for Toxicity Test Variability in Evaluating WET Test Results
Characterizes sources of WET test variability and evaluates existing and new methods that integrate variability into decision making. Will identify technically defensible methods to improve the...
State of the Science: Review of Quantitative Tools to Determine Wastewater Soil Treatment Unit Performance
The literature review described in this report is part of a larger research project to assess STU performance with respect to treatment of important wastewater constituents. The overall goal of...
Trace Organic Compound Indicator Removal During Conventional Wastewater Treatment
Available as eBook only
Because of concerns related to public and aquatic health, there is increasing interest in evaluating occurrence and removal of trace organic...
Membrane Bioreactors
Membrane Bioreactors (MBR) are becoming increasingly important in the treatment of municipal wastewater. Compared to traditional treatment techniques, MBR’s require far smaller...
The Regulation of Water and Waste Services:
The public water supply, urban wastewater and urban waste management services are essential to the well-being of citizens, public health and economic activities. These are generally provided under...