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New micro-fiber automatic filter meets tertiary regulations

October 02, 2006
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Recently, the new 10-micron AMF2 technology passed inspection and approval by the South Carolina Department of Health and Environmental Compliance (SCDHEC) for a package WWTP located at Harbor Island near Beaufort, SC. The system not only met the new regulatory limits, but produced a higher quality effluent consisting of 0.3 PPM TSS, <2 PPM BOD, and 0.8 NTU. The new filtration system not only provides great effluent quality, it incorporates a state-of-the-art PLC controller allowing the WWTP operators a full menu of monitoring and remote interface options. Capital costs, foot print size, range of filtration degree, and low O&M expenses were the main reasons Robert Gross, PE & owner decided to invest in the new technology. Although new to the United States, these automatic self-cleaning systems have been extensively used for the last 12 years throughout Europe and Canada for water treatment and removal of cryptosporidium. The design of the filtration elements consists of a series of thread wound cassettes fastened into a carousel assembly that forms a cleaning element; currently available filtration degrees are 3, 7, 10, & 20 microns; with a life expectancy of 15 – 20 years; operating pressure ranges between 3 PSI and 150 PSI.

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