AdvanTex™-RX Treatment Systems

Photo courtesy of Orenco Systems®










Photo courtesy of Orenco Systems®

Illustration courtesy of Orenco Systems®

Orenco's textile filters have been installed throughout the United States on hundreds of sites, including federal demonstration projects, university testing facilities, single-family homes, commercial properties, and community systems. Marlboro College, in Southern Vermont, is utilizing the AdvanTex™-RX Treatment technology. This system is designed to treat up to 15,000 gallons per day of wastewater. Because of the AdvanTex™-RX's nitrogen reducing ability, it has become the treatment system of choice in coastal regions where nitrogen is of great concern. Click Here to see where AdvanTex™ systems are installed around New England.

In an AdvanTex™-RX Treatment System, wastewater percolates both through and between thetextilemedia, whose complex fiber structure offers an extremely large surface area (>5000 ft2/ft2) for biomass attachment. The textile bed's porosity, after compaction, typically exceeds 90 percent. In terms of treatment, a key factor is the water-holding capacity (field moisutre capacity) of the textile material.

A visible biological film normally develops on the filter medium within a few days. BOD5 and TSS reductions occur almost immediately. Within the filter, aerobic conditions exist that are ideal for microbes that convert ammonia to nitrate (nitrification). Other conditions exist, too, that result in further nitrogen reduction within the media. In Mode #3,the filtrate recirculates back to the high-carbon, low-oxygen (anoxic) environment of the processing tank, which is ideal for microbes that reduce nitrates to nitrogen gas (denitrification). Harmless nitrogen gas is then released freely back into the atmosphere. The acclimation period for nitrification may range between four and eight weeks, or longer in colder conditions.

The AdvanTex™-RX model RX30 with a 1,500 gallon processing tank is capable of treating up to 600 gallons of residential strength effluent. These systems are designed to be easy to install. They are shipped with proper pump, controls, and other components as a complete package - ready to go - with detailed installation instructions.

Like any advanced technology, the AdvanTex™-RX Treatment System should be serviced regularly. AdvanTex™ is easy to service, easy to clean, and generates virtually no troublesome activated sludge.

The AdvanTex™-RX Treatment System comes with an audible alarm to signal maintenance or high water conditions. And it's sized to allow for a minimum of 24 hours of wastewater storage (at average daily flows). That means an operator can provide service to the system during normal working hours, regardless of when the alarm occurs.

The AdvanTex™-RX System's pumps typically run just 90 minutes per day, so AdvanTex™-RX uses very litter power . . . an average of $4 per month (based on the national average of eight cents per kilowatt hour). Compare that to power costs of up to $20-$60 per month for many "activated sludge" aerobic treatment units.

The following chart gives performance expectations for effluent discharged directly from the textile filter:

AdvanTex™ Mode*	BOD5 mg/L	TSS mg/L	TN mg/L
RX-Mode 1	10	10	10-30
RX-Mode 3	10	10	10

* The different modes represented here are different configurations of the AdvanTex™-AX Treatment System. The sought after results dictate which mode is to be used.

Physical Dimensions:

To learn more about AdvanTex™ Treatment Systems, visit Orenco System's AdvanTex™ website.

* Covered by U.S. patent numbers 5,980,748, 5,531,894, 5,480,561, 5,492,635, and 4,439,323. Additional patents pending.