Pall Aria™ Installations for Wastewater Treatment
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Some Pall Aria Installations for Wastewater Treatment
| Project Location | Type of Wastewater | Treatment | Water Use | Flow (mgd) |
|---|---|---|---|---|
| Chandler,AZ | Electronics mfg. | MF + RO | Aquifer recharge | 1.75 mgd (275 m3/hr) |
| Luggage Point, Brisbane,Australia |
Municipal | MF + RO | Industrial process | 4.2 mgd (670 m3/hr) |
| Panel Rey, Mexico (Automotive Mfg.) |
Industrial | MF + RO | Industrial process | 0.3 mgd (35 m3/hr) |
| Sonoma County,CA | Municipal | MF only | Irrigation & groundwater recharge |
3 mgd (460 m3/hr) |
Data for wastewater and secondary effluent processing shows that the performance efficiency of the Pall Aria system can vary greatly with the feedwater quality. Effluent quality will remain consistent, regardless of the feedstream, because of the absolute nature of membranes.
Lagoon effluent treated to irrigate vineyards
The Sonoma County, California Water Agency needed to find a resource to supply local vineyards with water for their drip irrigation systems. The decision was made to use lagoon effluent with a 3 mgd Pall Aria microfiltration system to remove the solids and pathogens. A process of microfiltration followed by chlorination has enabled Sonoma County vineyards to be supplied with water that meets the California Code of Regulations Title 22 standards for food crop irrigation. The new system has ensured that the vineyards will receive a constant supply of high-quality filtered water with low suspended solids, even when drought conditions exist.
Wastewater becomes safe water
Treated secondary effluent is discharged into watersheds that collect and store the public drinking water supply. This water frequently requires further treatment to increase its safety. The New York State Department of Corrections facility in Bedford Hills discharges its processed wastewater into a New York City watershed. This water is not treated at the reservoir, so a Pall Aria system processes the secondary effluent and removes pathogens prior to discharge. The system has achieved >6 log (99.9999%) reduction of Giardia and Cryptosporidium and a >4 log reduction of coliform bacteria.
Aquifer recharge water produced from wastewater
The challenge presented to the Fountain Hills, Arizona Sanitation District was to find a more efficient wastewater treatment system that could recharge the groundwater aquifer. Both treatment process and product had to meet stringent environmental regulations, and total treatment cost had to be reduced.
Based on these factors, the decision was made to upgrade the plant with the AquaMB Process, which incorporates the Pall Aria system. At the conclusion of the process, the water that leaves the Pall Aria system is injected into deep wells to recharge the groundwater aquifer. It is stored during the winter months and becomes available in the summer months when Arizona can experience severe drought conditions.
Treatment of nuclear plant condensate
At each of the two Philadelphia Electric (PE) nuclear power plants, the plant managers chose Pall Septra™ filters to reduce the suspended solids in the condensate. As a result, PE is able to reduce radiation levels in the water and increase the service life of critical system components. Each Septra system treats total condensate flow to 30,000 gpm (43 MGD) and has been in continuous service at the station since 1995.
