Pollution Engineering - February 2009 - (Page 28)

Chile Air Filter leaky or full-filter bags more apparent and easier to maintain, and made it possible to change filter bags in a matter of seconds; tools and/or clamps would not be required to swap bags. In the case of the paper mill, the filter bags also had to accommodate the moisture that was produced from burning No. 6 fuel oil, while still providing full filtering capability for particulate emissions. To meet the requirements of the paper mill and government regulations, special filter media were designed to withstand the harsh processing environment. The filter media also had to provide a long lifetime of effective filtering capability to minimize process downtime. It was designed so that the SO2 present in the exhaust gases along with moisture could be removed by the filter media prior to atmospheric exhaust. The filter media could also withstand the high acidic content of the exhaust emissions. Cost considerations Solinst Multilevel Technology Waterloo Multilevel Monitoring System Engineered seals Modular ports and packers Ideal for deep applications Dedicated sampling pumps and pressure transducers Bedrock or overburden applications Permanent or long-term monitoring Monitor up to 24 isolated zones CMT Multilevel Monitoring System Lower cost than multiple wells Excellent for vertical profiling Fast and easy to drill and install Ideal for shallow wells In-field design flexibility Single tube for effective sealing Install using any drilling method – including direct push 7-Channel or narrow 3-Channel Why Use Multilevels? The result is defensible data. More detailed site characterizations and accurate risk assessments enable increased confidence in decision-making. Monitoring of contaminant plumes is much more affordable, providing data to focus on remediation strategies and target efforts more precisely. Waterloo Emitter™ Engineered for the controlled diffusive release of: Oxygen for aerobicbioremediation Hydrogen for anaerobic bioremediation CO2 for pH adjustment SF6, He, Ar for tracer tests Enhance Bioremediation The Waterloo Emitter™ is designed to assist in-situ remedial biodegradation of MTBE, BTEX and other contaminants. It enables oxygen (or hydrogen for anaerobic remediation) to diffuse through silicone or LDPE tubing in a controlled uniform manner. The simple, low-cost, patented technology consists of a PVC frame wrapped with tubing that can be pressurized to obtain the desired flow of gas, depending on site-specific needs. Sized for 2", 4" and 6" (50, 100 and 150 mm) wells, the units can be stacked in a well and joined from one well to another, to allow the controlled uniform diffusion of gas into the plume. High Quality Groundwater & Surface Water Monitoring Instrumentation Solinst Canada Ltd., 35 Todd Road, Georgetown, ON L7G 4R8 Tel: +1 (905) 873-2255; (800) 661-2023 Fax: +1 (905) 873-1992; (800) 516-9081 While at press time, the historic rise in price of natural gas that precipitated the switch to No. 6 fuel has been somewhat curtailed by international economic woes, few experts predict the sudden price drops to be permanent. Said Oelker, “even if our client had natural gas available to them, they would use heavy fuel oil, which is more convenient for them and, right now, about 25 percent cheaper than natural gas,” adding, “In practical terms, natural gas is no longer an option.” The lower-cost fuel approach and its supporting environmental control systems have been in place for two years, with no operational problems and with particulate emissions maintained well within government compliance limits. As a bonus, the ash rejected from the process is reused as an energy source by an independent, nonrelated company, and the wastewater from the system’s wet scrubber is treated on-site in full compliance with Chilean environmental regulations. The system has long paid for itself in terms of its reduced fuel costs compared to natural gas, and in the peace of mind that it provides for the paper mill’s managers, knowing that they have found a reliable and available energy source to run their plant without the dramatic price fluctuations common to natural gas in that area. PE Paul A. Tetley is executive vice president of Met-Pro Corp., Harleysville, Pa. Prior to that, he was vice president and general manager at Strobic Air Corp., a subsidiary of Met-Pro Corp. Tetley can be reached at (215) 723-4700 or by e-mail at ptetley@strobicair.com. Visit www.pollutionengineering.com to electronically forward a copy of this article to a colleague or customer. Visit our website: www.solinst.com E-mail: instruments@solinst.com 28 Pollution Engineering FEBRUARY2009 http://www.pollutionengineering.com

Table of Contents Feed for the Digital Edition of Pollution Engineering - February 2009

Pollution Engineering - February 2009 Contents The Guest Dialog EnviroNews PE Events Legal Lookout Casebook Canada Environmental Management When Cleanup is Rocket Science RemTEC Features A Chile Air Filter Safer Waste Handling Reaps Rewards 2009 Environmental Software Review Some Serious Sliplining Environmental Software Products Biosolids Equipment Classified Marketplace Advertisers Index State Rules

Pollution Engineering - February 2009

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