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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 reduction, with none of the elaborate technology and expensive chemicals required of conventional chrome reduction methods. The technology has also been applied to lead, arsenic and cyanide.The Moscow-based galvano-coagulator manufacturer, O/V Licensintorg, is unclear on the precise mechanism for chromium reduction, and has given unacceptably broad guidelines for designing and operating the units. The described research was intended to identify the mechanism for chromium reduction, and to determine the variables that determine its proper sizing and operating parameters.
Strategies for Sustainable Water Resource Management
Integrated water resource management has been discussed since at least the Civil War; yet, there is still no integrated framework for sustainably managing water. Recognizing this need, the Water...
Utility Benchmarking for Wastewater Synthesis Report
A robust performance evaluation process greatly enhances wastewater utilitys ability to achieve and measure improvement in performance in many key areas. A major contribution from this study is...
Research Digest: Toxicity Screening of Influents Using Bioluminescent Reporter Technology
Influent toxicity can be a critical problem for publicly owned treatment works that use the activated sludge process as part of their treatment regime. In this project, the researchers developed...
Develop and Demonstrate Fundamental Basis for Selectors to Improve Activated Sludge Settleability: Phase 2 Lab Investigation
The primary objective of this research was to compare dilute sludge volume index (DSVI) control in equally-sized single- and multi-stage anoxic and anaerobic selectors relative to a control...
Utility and Infrastructure Management Bundle
Special Offer: Utility and Infrastructure Management Bundle from IWA Publishing
Utility and Water Infrastructure Management books - Available now at over 30%...
A Review of Advanced Sewer System Designs and Technologies
Available as eBook only
This document seeks to collect into one place current and new technologies about, or related to, sewerage system design so that wastewater...
Municipal Water and Wastewater Services Reform in the Russian Federation
Russia is going through a complicated period of transforming its economy with a focus on the expansion of private sector activity. This includes reforms in the field of municipal water supply and...
Mass Transfer Characteristics of Floating Media in MBBR and IFAS Fixed-Film Systems
The goals of this project were to establish a standard protocol for measuring mass transfer rates in biofilm media, and to use the resulting data to develop and calibrate an empirical model. Two...