As utilities are implementing perchlorate, nitrate, and arsenic treatment technologies to
meet increasingly stringent regulations, using/finding effective means for residual management
is becoming more important. The goals of this project were: to develop and evaluate alternatives
to minimize production of residuals and wastes generated during treatment of drinking waters
containing arsenic, perchlorate, or nitrate; and, to treat residuals that are generated from the
drinking water treatment processes. As more stringent state and federal drinking water
regulations are adopted to limit these contaminants in drinking water, critical evaluation of not
only the primary treatment methods but also the brine management and disposal issues need to
be carefully addressed to implement new treatment systems. Specifically, the objectives of this
study were to:
identify different types of residuals generated from perchlorate, nitrate, and arsenic treatment
processes;
identify approaches required to meet overall perchlorate, nitrate, and arsenic treatment goals
in drinking water and residuals;
develop and evaluate processes to minimize, manage, and treat concentrate waste streams;
review pertinent regulations and compare costs and implementation issues associated with
various treatment and disposal scenarios; and,
summarize the results of this work in a format that will serve as a guidance tool for helping
utilities develop effective residual minimization and handling strategies. This project provides
treatment alternatives for residuals from nitrate, perchlorate, and arsenic treatment processes.
Some of the results presented here are based on the technologies that are already available while new
and innovative methods and concepts have also been demonstrated during the project. An
important aspect of this project was to collect and disseminate information on residual treatment,
which is often overlooked in making a process selection. Includes reference, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 330 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 5 |
| Published : | 06/17/2004 |
