Scrubber Adsorber Abstracts
SC 07 12 01 “Advanced Air Pollution Abatement System Designed for Municipal
Solid Waste Incineration” by Editor. Canadian Environmental Protection,
October 2006, 1 p.
ALTECH Technology Systems Inc., (ATS) of Toronto, Ontario was contacted by Infratech Corporation, a major Canadian solid waste incinerator manufacturer, to design and supply a complete air pollution control system to meet strict regulatory air emission limits for a diamond mine operation at a remote location in Northern Ontario. Based on successful installations of incinerator air scrubber systems in Europe, System REITHER Venturi Air Scrubber was selected as the preferred technology for this application. This patented design is very well suited for controlling airborne contaminates in situations with limited available space and where high removal efficiencies are needed. Another advantage is the unique spray nozzle design, which allows continuous re-circulation of scrubbing fluid until near saturation without nozzle clogging. This feature is valuable in situations with limited available clean water, which is the case here. ATS was asked to provide a complete air emission conditioning system which included the System REITHER air scrubber, incinerator flue gas quench system with heat exchanger, chemical feed to control quench water and scrubbing fluid pH and connecting duct work.
C ALTECH, W 010 CANADA, S 4953/01 INCINERATOR, MUNICIPAL, IS 367 VENTURI,
S 1499/00 NON METALLIC MINERAL MINING
SC 07 12 02 “Better than Regs Require:Argueso & Co. Achieves Consistent 99%
Efficiency Standard for Particulate Emissions” by Editor. Pollution
Equipment News, 1 p.
M. Argueso & Co. (Muskegon, MI) produces casting wax blends for the investment casting industry, wax products to stabilize parts during machining and specialty wax blends for cosmetic, sculpture, jewelry and other uses. The company’s first priority was to identify a system that would collect fugitive wax particulate with consistently high efficiency. Low utility cost and minimal maintenance were also important to the selection process. Wet particulate collection was specified at the outset because the wax vapor carried with the airstream would quickly blind baghouse, cyclonic and other dry systems. After evaluating several wet systems, the nod went to a technology developed by Tri-Mer Corp. called Whirl/Wet. Argueso purchased two Whirl Wet systems, 5000 and 7500 cfm, respectively, one for each of two operations. A rental unit allowed the company to test the effectiveness and operation of the technology before making a final commitment. To control process odors and VOCs, a 3000 lb. active carbon bed filter was placed after the 5000 cfm Whirl/Wets units. Sandwiched between them is a bank of DOP-type “furnace filters” that first remove the smaller (1-3 micron) particulate. Whirl Wet operates in the 99%+ efficiency range for a wide variety of applications and over a wide range of micron sizes for both soluble and insoluble particulate. It is widely used throughout the CPI, and within the food, pharmaceutical and aggregate sectors.
C TRI-MER, IS 234 PARTICULATE, IS 210 EFFICIENCY, IS 340 CHARGED WET SCRUBBERS,
C M. ARGUESO, S 3411/10 METAL FORMING
SC 07 12 03 “Big Push to Improve Pollution Control at South African
Smelters” by Mischa Drotsky. Mining Weekly, March 2006, 1 p.
As a supplier of electric-arc smelting furnaces and related technology to the ferroalloys and base-metals industries, Pyromet Technologies also designs its own in-house gas-cleaning systems for smelter applications, embracing wet and dry systems. Senior mechanical engineer Piet Jonker tells Engineering News that, with increasing pressure for tighter pollution control from government as well as international bodies, Pyromet is constantly focusing on improvements in solutions for pollution control in smelting plants. Projects recently completed by Pyromet include the turnkey supply of reverse air-bag filters, the turnkey supply of the secondary fume-extraction and bag-filter plant for a silicon manganese producer, and complete venturi-scrubber systems on furnaces and secondary emission points for a ferrochrome producer. Current projects include the engineering and erection supervision of the secondary fume-extraction and bag-filter plant, including auxiliaries for five 22 MVA FeMn furnaces, the turnkey supply of dust control and bag filters on two raw-material handling systems, the turnkey supply of secondary fume extraction and bag filter for a ferrochrome producer and the turnkey supply of four venturi-scrubber systems on furnaces for ferrochrome producers.
W 051 SOUTH AFRICA, S 3312/11 STEEL ELECTRIC ARC, IS 367 VENTURI,
S 3313/00 FERROALLOY MANUFACTURING, IS 544 FILTERS, C PYROMET
SC 07 12 04 “Case Study: Purafil ESD Eliminates Wastewater Odors in
Barcelona, Spain” by Shari Blalock, Purafil Inc., Doraville, GA. Journal
of the American Water Works Association, September 2007, 3 p.
The recently renovated Besos Wastewater Treatment Plant (WWTP) in northeastern Barcelona, Spain, on the Mediterranean Sea, is a revolutionary solution for its more than 2 million inhabitants. The new 900,000-sq. ft underground facility, the last stage in the city’s water cycle, treats more than 70% of the wastewater for the city of Barcelona and surrounding towns of Sant Adria de Besos, Santa Coloma de Gramanet, Badalona, Montgat, and Tiana. A total of 16 side access units containing various media customized to the specific needs of the wastewater treatment plant were added during the renovation. The plant’s odor control solution included the addition of nearly 100 drum scrubbers that trap odorous gases in the media and discharge clean air. A division of Purafil Inc., Purafil ESD manufactures a broad range of dry-chemical media and scrubbers that remove odors, prevent toxic gas releases, and prevent corrosion of electronics. MediaSAKS™ containing Purafil Odoroxidant™ and Odormix™ media sit inside the drum scrubbers in the Besos WWTP. Once the air enters the scrubber, the odorous gases are trapped within the media, and the clean air is discharged out of the scrubbers’ centrifugal air ventilator.
W 052 SPAIN, C PURAFIL, IS 245 ODOR CONTROL,
S 4952/20 WASTEWATER, MUNICIPAL, IS 245 ODOR CONTROL
SC 07 12 05 “Consider Options for Automation” by Editor. Chemical
Processing, November 2006, 2 p.
In this article, readers suggest ways to automate an HCl absorber.
S 2819/13 HCl ABSORPTION, S 3312/00 STEEL MILLS
SC 07 12 06 “EH&S Clinic” by Editor. Products Finishing, March
2006, 3 p.
At the PF forum, subjects discussed included: Switching from lime to magnesium hydroxide, OSHA regulations on employee safety and can wastewater from scrubber drain to sewer?
S 3471/60 METAL FINISHING, C OSHA, IS 860 SAFETY, S 4952/21 WASTEWATER, INDUSTRIAL
SC 07 12 07 “How to: Control Submicron Particulate” by Tri-Mer
Corporation. Pollution Engineering, November 2006, 1 p.
Tri-Mer’s Cloud Chamber System® (CCS®) simultaneously treats submicron, fine, coarse and condensable particulate, and soluble gases. Based on advances in electrofluidics, CCS treats submicron particulate with efficiency 99% or greater, while simultaneously removing condensables and soluble gases. CCS technology works by passing the gas stream through a chamber containing a “scrubbing cloud” of high-density, charged water droplets. Billions of charged droplets rapidly interact with the particle-bearing process stream. When a particle and droplet pass within 20 microns, electrical forces cause the particle to be pulled into the droplet. Droplets collect particles as they interact with the gas stream, then “rain” into a sump. Captured particles agglomerate within the sump, settle, and are removed as low volume slurry. Since the charged droplets are particle collectors, CCS has no need for fibrous filters, collector plates, venturi throats, layered pads, bags or cartridges.
C TRI-MER, IS 234 PARTICULATE, IS 232 PARTICLE SIZE, IS 340 CHARGED WET SCRUBBERS
SC 07 12 08 “Manufacturing Plant Receives Environmental Award for
Substantially Reducing Solid Waste and Air Pollution Emissions” by Rodney
L. Pennington. Canadian Environmental Protection, October 2006, 1 p.
DuPont’s Front Royal plant has continually reduced solid waste generation and air emissions over the past five years. Since 2000, the plant has reduced solid waste by 30 percent and installed additional abatement systems to reduce air emissions by more than 50 percent. The plant’s latest project included a unique modular, skid-mounted, multiple-function VOC/HAP control system furnished by Dürr Systems Inc.’s Environmental and Energy Systems group. The system provided control for several areas, including manufacturing process vents, solvent storage tank vents, resin manufacturing process vents and solvent recovery process vents. All of the various areas had different process flows, solvent types, solvent concentrations and operating schedules, so a specialized control approach was necessary in order to minimize operating costs and maximize control performance.
C DUPONT, C DÜRR, IS 365 SOLVENT VAPOR RECOVERY, IS 374 VOC REMOVAL,
S 3900/00 MANUFACTURING INDUSTRIES, MISCELLANEOUS
SC 07 12 09 “Revision of Source Category Lists for Standards Under Sections
112(c) and 112(k) of the Clean Air Act; and National Emission Standards for
Hazardous Air Pollutants for Area Sources: Electric Arc Furnace Steelmaking
Facilities; Proposed Rule” by U.S. EPA. Federal Register, Vol. 72,
No. 182, September 20, 2007, 24 p.
EPA is adding electric arc furnace steelmaking facilities to the list of source categories subject to regulation under Clean Air Act (CAA) section 112(c)(6) and revising the area source category list for the Integrated Urban Air Toxics Strategy. At the same time, EPA is proposing national emission standards for electric arc furnace steelmaking facilities that are area sources of hazardous air pollutants (HAP). The proposed standards establish requirements for the control of mercury emissions that are based on the maximum achievable control technology (MACT) and requirements for the control of other hazardous air pollutants that are based on generally available control technology or management practices.
IS 204 HEAVY METALS, IS 150 LEGISLATION & REGULATION, IS 378 AIR TOXICS, S 3312/11 STEEL ELECTRIC ARC
SC 07 12 10 “Sustainable Solution Full of Energy” by Dave Blurton,
Neenah, WI. Water & Wastes Digest, November 2006, 3 p.
A commercial-scale vitrification of high-volume municipal wastewater treatment residuals has been initiated at the North Shore Sanitary District (NSSD). Located just north of Chicago, the NSSD owns and operates more than 100 miles of intercepting sewer lines and pumping stations that collect and convey wastewater to its three treatment plants in Gurnee, Waukegan and Highland Park, IL. As of October 2006, all three plants now send their dewatered sludge to NSSD’s new sludge recycling facility located in Zion, IL. At the heart of the NSSD’s sludge recycling facility is Minergy’s GlassPack vitrification process. The GlassPack technology utilizes a patented closed-loop oxygen-enhanced combustion process to convert the biosolids into a renewable fuel source and produce the marketable glass aggregate product. Oxygen-enhanced combustion provides significant process benefits, including higher radiant heat energy, higher thermal transfer efficiency, improved ignition characteristics and greater flame stability. These process efficiencies lead to greater heat transfer to the biosolids and produce the temperatures necessary to sustain the melting process. Preserving open land by reducing the need to landfill has been at the forefront of the NSSD’s strategic and environmental objectives. The glass aggregate process offers environmental and economic benefits to municipal wastewater treatment systems, sludge-producing industries and surrounding communities. These benefits include reducing long-term dependence on land spreading or landfill disposal, providing a cost-effective alternative for managing sludge, and offering a more comprehensive and sustainable approach to solid waste management.
S 3210/00 GLASS PRODUCTS, C WWTP — NORTH SHORE SANITARY DISTRICT, IL, C MINERGY,
S 4952/25 DEWATERED SLUDGES, S 4952/20 WASTEWATER, MUNICIPAL