Pollution Engineering - September 2008 - (Page 33)

ing the town of Kellogg. This location was known as the “Silver Valley” because of the large silver, zinc and lead deposits mined there. The Bunker Hill Superfund site encompasses approximately 21 square miles in the Silver Valley of northern Idaho and includes a 365-acre abandoned lead/zinc mining and smelting industrial complex as well as numerous confined and unconfined waste deposits. FPXRF was used extensively to map sites and identify mine waste piles and tailings for lead, zinc, arsenic and other chemicals of concern, also called COCs. FORD: One project involved the Saginaw and Palo Verde mine sites in Arizona. Saginaw Hill is located on a 540-acre parcel of BLM [Bureau of Land Management] land, which the local county was interested in acquiring as recreation land. Sulfide mining and smelting occurred at the sites from the late 1800s through the mid-1900s. In-Situ NITON XRF unit soil testing with a global positioning unit. FILTRATION TRENDS New Filtration Technology Keeps Cooling Tower Water Clean Typical Full Flow filtration using existing pump. ORIVAL Cooling Tower ORIVAL Cooling Tower Typical Side Stream filtration of basin using a recirculating pump. Typical Side Stream filtration using existing pump. Typical Side Stream filtration using a booster pump. O RI VA L Cooling Tower Cooling Tower E www.orival.com • filters@orival.com specific gravity, even lighter than water. Typical examples include: airborne particles, microbiological growth, bugs, sand, scale, algae, rust, etc. Line pressure powered, they permit use of the existing cooling tower pump, lowering initial system cost. The fully automatic self cleaning cycle takes seconds and does not interrupt flow. Reclaim units recirculate rinse water making filtration a zero discharge operation. For more information and system design assistance, contact: Orival, Automatic SelfCleaning Filters, 40 N. Van Brunt St., Englewood, NJ 07631. (201) 568-3311, (800) 567-9767, Fax: (201) 568-1916. very cooling tower has its unique dirt conditions, space constraints and other special characteristics. Filtration systems must take these into account in order to maintain particle free water. Orival filters are versatile enough to meet these criteria. They remove a wide range of dirt down to micron size, of any See us in WEFTEC Booth #27171 SEPTEMBER2008 www.pollutionengineering.com 33 O RI VA L http://www.orival.com http://www.pollutionengineering.com

Table of Contents Feed for the Digital Edition of Pollution Engineering - September 2008

Pollution Engineering - September 2008 Contents The Editor’s Desk Reader Comments EnviroNews PE Events Legal Lookout Environmental Management The Green Files Guest Dialog 500-Year Storm Control How Do You Clean Up 100 Years of Pollution? SPCC: Don’t Wait and See The Next Wave in Air Purification An Invitation to the Windy City Flood Control Infrastructure Saves ‘Green’ Puts a New Spin on Pest Control Instrumentation Products Material Safety and Storage Equipment PE Products Classified Marketplace Advertisers Index State Rules

Pollution Engineering - September 2008

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