Max-9 is a dust collection technology that combines Discharge Electrodes and Fabric Filters in the same casing to provide Maximum efficiency (99.999+%) and maximum airflows.

The US Environmental Protection Agency (USEPA) partnered with Southern Research Institute (SRI) to develop new technology specifically designed to address fine particulate and the need for a compact footprint. The result of this collaboration was the ESFF, an Electrostatically Stimulated Fabric Filter. The USEPA patented this technology, which uses high voltage discharge electrodes in the same casing with fabric filters. It is fundamentally an electrostatic precipitator that uses fabric filters instead of collecting plates. This new design provides collection efficiencies that are an order of magnitude higher than those achieved by either the best fabric filters or the best precipitators currently on the market, with demonstrated efficiency of 99.999%.

BHA is now the exclusive licensee of this exciting USEPA technology, which we call the Max-9. BHA improved the design of the original test unit and commercialized it for full scale applications. Max-9 electrostatic fabric filters can be used as slipstream units to augment an existing dust collector, as polishing units behind an existing precipitator, baghouse, or scrubber, or alone as a high efficiency replacement for an inefficient precipitator.

Some of the benefits are:

• 60-80% reduction in static pressure across fabric filters, compared to conventional baghouses
• Uses a combination of well known, proven technologies to achieve unprecedented efficiency
• Designed to be used alone or in conjunction with SOx and mercury control systems
• Simple design is scalable to permit rapid installation and short outage duration
• Offers 80-90% reductions in sub-micron particulate matter emissions
• Smaller footprint than any other collector technology
• Allows operation at high air-to-cloth ratios