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Capital and Operating Cost of Small Arsenic Removal System and their Most Frequent Maintenance Problems
Citation:
Sorg, T. Capital and Operating Cost of Small Arsenic Removal System and their Most Frequent Maintenance Problems. Presented at Water Quality Association Annual Conference, Las Vegas, NV, March 06 - 09, 2012.
Impact/Purpose:
Providing information to Water Quality Associations memebr on the cost of drinking water technology to remove arsenic.
Description:
This presentation will first summarize the capital and operating cost of treatment systems by type and size of the systems. The treatment systems include adsorptive media (AM) systems, iron removal (IR), coagulation/filtration (CF), ion exchange (IX) systems, and point-of-use reverse osmosis. All treatment systems were used for removing arsenic from small community water supplies that included several non-transient non-community water systems (NTNCWS). The capital costs of the treatment systems are broken down into three components - equipment, site engineering and installation. Factors affecting the capital cost included system flowrate, vessel design, material of construction, media type and quantity, pre- and/or post-treatment requirements, and level of instrumentation and controls. The operation and maintenance (O&M) costs are categorized into media replacement (AM systems only), chemical consumption, electricity, and labor. The presentation will conclude with a summary of the most frequent maintenance problems experienced by the 50 treatment systems.