AWWA WQTC58798

In October 2001, the US Environmental Protection Agency (USEPA) announced an initiative for additionalresearch and development for cost-effective technologies to help small systemsmeet the new arsenic standard and to provide technical assistance to operatorsof small systems to reduce compliance costs. As part of this initiative to assistsmall community water systems (< 10,000 customers) in complying with the newstandard, USEPA's Office of Research and Development (ORD) proposed a projectto conduct a series of full-scale, long-term, on-site demonstrations of arsenicremoval technologies, process modifications and engineering approachesapplicable to small systems.The objective of the arsenic removal technology demonstration projects was to:evaluate cost-effectiveness of the technologies relative to existing technologiesand gauge simplicity of operation; evaluate the effectiveness of arsenictreatment technologies under varying water quality conditions; comparereliability; document operation and maintenance needs; and, characterizearsenic wastes (residuals) and evaluate management practices.The arsenic treatment technology demonstrations will be conducted at selectedwater systems across the nation due to differences in water chemistry that existin various parts of the country. Because water chemistry is expected to affect theperformance of the treatment technology, the demonstrations will test some ofthe same technologies at different sites. The demonstrations will last a full year.This time frame provides for the gathering of operational information to fullyevaluate the performance of the technology over different temperature rangesand to evaluate any seasonal factors that influence the performance of thetechnology.Water chemistry will be monitored throughout the process and information on thesimplicity of operation, energy costs, operator time and skills will also begathered. These demonstrations are to be conducted in real world conditions,thus, USEPA will not be operating the technology. All operations will be conductedby the operator or operators at the water system. USEPA and its contractor as wellas the technology vendor will support the water system throughout the process. Includes table.

Product Details

Edition:

Vol. - No.

Published:

11/02/2003

Number of Pages:

4

File Size:

1 file , 190 KB