Dust Control – Soil Stabilization – Erosion Control

Archive for the ‘fugitive dust’ Category

ACE Engineering in La Verne, CA won a contract worth up to $73.7 million to carry out multiple paving projects at Nellis and Creech Air Force Bases, Tonapah Test Range, and other related US Air Force sites in Nevada in order to improve on dust control.

ACE will provide labor, supplies, materials, supervision, transportation, and equipment to repair, maintain, or build asphalt or cement roads, parking lots, runways, taxiways and shoulders at the bases and range.

An environmental assessment report [pdf] on Nellis and the test range prepared by the US Air Force in May 2007 noted that unpaved roads on the USAF facilities contributed to air pollution in the region.

According to the Draft Environmental Assessment for the Integrated Natural Resource Management Plan at Nellis Air Force Base and the Nevada Test and Training Range, there is a concern about air pollution and dust control at the facilities:

“Exceedances in particulate matter are due to the release of dust from construction, unpaved roads, and unprotected soil surfaces….Some air pollutants are released during the explosion of ordnance….Movement of vehicles along gravel and unpaved roads also results in the release of fugitive dust in localized areas.”

Fugitive dust [pdf] is fine particles that can carry heavy metals and cancer-causing organic compounds into the deepest and most susceptible part of the lungs. The smaller the size of particles matter, the farther it can travel into the lungs and get trapped in the air sacs, causing an inflammatory response that increases the potential for respiratory disease and heart attack.

The work being performed by ACE should help lessen the risks from fugitive dust. The contract has a base year with the option to extend it up to 4 additional years. At this time, $100,000 has been obligated. The 99th Contracting Squadron at Nellis Air Force Base manages the contract (FA4861-09-D-A010).

Australian Dust Control  designs a range of shaker dust extractors that are energy efficient, environmentally friendly and can be delivered ready to be installed by the customer.

This type of shaker dust extraction system can be delivered to site preassembled and then easily placed on the base framework.

Located in Harvey Bay, timber flooring and cladding supplier Urbanline commissioned Australian Dust Control to supply a shaker dust collector with an 18.5kw fan that they were able to easily install themselves

These types of shaker dust extractors are also suitable for school woodworking rooms and industrial design classrooms. The dust extractors will ensure that students have access to high standards of protection.

All dust and fume extraction systems designed by Australian Dust Control comply with selection criteria and OH&S regulations.

Research and Markets has announced the addition of Frost & Sullivan’s new report “South African Air Pollution Control Market” to their offering.

Research Overview

This Frost & Sullivan research service titled South African Air Pollution Control Market provides a strategic overview of the total air pollution control market. In this research, Frost & Sullivan’s expert analysts thoroughly examine the current trends in air pollution control and how market participants can take advantage of opportunities that are expected to arise. The following market sectors are covered in this research: energy and power, chemicals and petrochemicals, steel and metals, pulp and paper and cement and brick manufacturing. Fabric filters, electrostatic precipitators, scrubbing equipment, flue gas desulphurization and dust suppression are some of the technologies examined in the research. Read the rest of this entry »

Among the range of solutions that Odourdust Dust Control can offer for stopping dust rise or to suppress it from the air is Buffalo Turbine’s Monsoon. This unit will move water or other fluid through a proprietary gyrating atomizing nozzle, which will expel solution from a rotating hub through a screen at the perimeter of the atomizing nozzle. This results in a high speed impact that pulverises the fluid into a uniform spectrum of droplets.

When formed the tiny droplets will mix with the highly turbulent airflow generated by the Buffalo Turbine 14" single stage turbine, and will be projected into the air. The 50-200 micron size droplets will collect and trap airborne Dust Particulates and odours, ultimately resulting in an immediate reduction of pollution on site.

No generator is required for this diesel-driven, portable unit. Wireless nozzle and throttle control and oscillating stand and a reach of 40 m provides controlled dust suppression for a range of sites.

This story is not uncommon to us. many time good intentions don’t always end up the way we want them to. In this case the method used for erosion control is not exactly panning out the way they expected, now they have a dust control problem as well as an erosion control nightmare about to take place.

Had anyone else built this hillside near the U.S.-Mexico border, it would look nothing like it does. The barren hill would be alive with native plants, the earth would be solidly rooted and not a threat to tumble down into the Tijuana Estuary, a lush, 2,500-acre salt marsh that starts 600 feet away.

But along the newly constructed border fence near the Pacific Ocean in Border Field State Park, inch-thick tan clumps of seeds and mulch still blanket the ground. They haven’t been watered, so no plants have grown.

When Top-Seal is used for erosion control and or dust control, the application can be adjusted so that the end result will promote growth of new vegetation. In farming there is a practice called moisture banking. The objective is to leave the soil undisturbed after there has been a long soaking rain. This rain will create a protective crust on the surface of the soil. This crust will help keep the moisture in the soil. When Top-Seal is used to create this protective layer for either erosion control or dust control, the effects are even more drastic. In the long run, the moisture that is banked and the sealed, is there for the seeds to utilize for growth.

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An advisory for blowing dust has been issued for the Las Vegas Valley and surrounding areas as gusty winds are expected Tuesday afternoon through Wednesday afternoon.

The Clark County Department of Air Quality, dust control  and Environmental Management is advising residents and construction site operators to prepare ways to reduce windblown dust grains as gusts could reach up to 60 mph Tuesday afternoon and into Wednesday.

As part of the county’s dust control program, air quality officials are sending notice to construction sites asking them to take precautions to prevent blowing dust. Air quality officials will continue to monitor the air and will post an alert on the DAQEM Web site if unhealthy levels of dust occur.

If high winds occur, local or valley-wide areas of blowing dust are likely to occur, air quality officials said. Children, the elderly and people with respiratory diseases are urged to stay indoors during dust storms.

Better late than never, many of the residents, government works and construction site managers have been contacting SCI to try and improve their dust control program. Over the next few months SCI will be assisting customers is Las Vegas to try and improve their dust control operations.

Residents are encouraged to call Air Quality’s dust complaint hot line at 385-DUST to report excessive amounts of blowing dust.

Air Quality officials also recommend residents drive slowly on unpaved roads, not take shortcuts across vacant lots, ride off-road vehicles only in approved areas outside the urban Las Vegas Valley, and fence off barren property or cover it with gravel, rock or desert-friendly landscaping to keep dust down during high winds.

Minneapolis, MN October 1, 2009 — The Proterra™ rider sweeper from Advance combines superior maneuverability, simple operation, and a 64-inch dust-controlled sweeping path to set a new standard of cleaning productivity for rider sweepers. The machine’s five-stage dust-suppression system captures dust at the main broom and side brooms, which minimizes fugitive dust and helps keep manufacturing facilities, parking garages, warehouses and other indoor and outdoor areas clean and free of airborne particles.

The patented DustClear™ Five-Stage Dust Control system begins controlling dust at the side brooms – the greatest source of fugitive dust on other sweepers. The Proterra’s dust suppression system emits a light mist at the side brooms that bonds to dust so that it settles and is immediately swept into the main broom chamber instead of drifting into the air. A vacuumized main broom chamber provides consistent airflow into the broom chamber to ensure all dust is contained in the main hopper. An Ultra-Web® (1) nanofiber filter then removes any remaining dust particles from the air stream. The life and performance of the filter is extended with Proterra’s variable frequency filter shaker system, which aggressively shakes the filter free of fine dust and particles at multiple vibration frequencies.

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