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The air inside factories and heavy manufacturing plants can be hazardous if not treated appropriately. In addition to engineering controls, carbon capture, ventilation systems and good plant hygiene, air cleaners for large areas such as Pure Skies can markedly improve air quality inside plants.
A heavy manufacturing company in Maharashtra was concerned about indoor air pollution
inside their 18,000 m2 facility. The company manufactures earth moving equipment. They faced the problem of very high particle pollutant levels (PM2.5 and PM10) due to heavy welding, metal cutting, and buffing in their premises.
Despite an investment of Rs. 60 lakh (USD 86,000) in fume extractors and ventilation, indoor air quality was dangerously low, with the 24-hour average levels of PM2.5 and PM10 both exceeding 300 mcg/m3. That’s twice as bad as Delhi, even on a bad day! The peak levels of PM were much worse, reaching the 1200-1600 mcg/m3 range each working day.
One Pure Skies 6000 unit was installed on a pedestal in the center of the factory. It occupied very little space, and its power requirement was a modest 30W (peak). A high-end air quality monitor* was installed at an appropriate distance and height from the welding area. The installation took 45 minutes.
After 6 weeks, the 24-hour average levels of PM2.5 and PM10 reduced by a whopping 81% and 70%, respectively (Figure 2)!
Figure 2: Improvement in PM2.5 (left) and PM10 (right) after installing Pure Skies in a heavy manufacturing facility. The red bar indicates baseline values for each pollutant - very high in this case. The green bars depict weekly average values after Pure Skies is turned on. The large decline in pollutant values between the 2nd and 3rd week (green bars) represents when the Smart Technology was turned on.
During the first two weeks, the reduction in pollutant levels was modest (26-35%), typical of Pure Skies during its start. But once our technology actually kicked in, which was by the end of week 2, huge improvements in air quality were evident between weeks 2 and 3. Thereafter, pollution reduced incrementally.
To position our equipment, we considered a number of factors, such as the number of workers, shifts, and welding stations; the amount of weld wire consumed; and factors beyond the plant environment such as weather and traffic density. This data is used to adjust the Pure Skies algorithms – how our pulsed radio waves are broadcast – with real time feedback on efficacy.
Pure Skies is the most advanced air pollution monitoring system available for cleaning ambient air. It uses pulsed radio waves in the Wi-Fi spectrum to affect small particles (and aerosols) < 20-25 microns in diameter, accelerating their clearance through a process called dry deposition. Our pulsed radio wave technology is well suited for air quality control in both indoor and outdoor environments.
Anyone working in a factory where metalworking is done knows how polluting it can be. Welding and other metalworking operations generate fumes containing manganese, lead, hexavalent chromium, and other toxic compounds. Well-designed source capture and facility-wide systems can go a long way in improving air quality inside plants, providing the safest and healthiest working environment possible for employees.
Today, our customer continues to enjoy markedly better air quality, 24x7. There is no adverse impact on plant operations from Pure Skies, and the unit operates silently year-round.
To know how your plant or company can benefit from Pure Skies, book a free consultation with our experts.
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