Tertiary Filtration Piloting conducted at two different WWTPs demonstrate improved performance of large anthracite media compared to dual and single sand media filtration.
When the Nashville, Tenn., Metropolitan Government needed a cost-effective solution to remove floatables from their the combined sewer overflow (CSO) system, they selected the patented Netting TrashTrap system supplied by Fresh Creek Technologies, Inc.
A three-year test of ozone and direct filtration so convinced the Altoona City Authority (ACA) of its merits that the central Pennsylvania water authority is now installing the technology at six new treatment plants and will retrofit another by 1999.
Products at Work
Granular activated carbon (GAC) has been used in the water and wastewater industries to reduce taste, odors and dissolved organic compounds. GAC filter media in potable water treatment plants serve a dual purpose: filtration and adsorption. This article will focus on potential problems with bacteria in the application of GAC at a potable water treatment plant.
GAC filter media is widely used for filtration and absorption, but potential problems with bacteria in GAC's application need to be explored
Batch system provides solution to the ever-increasing influx of wastewater and more stringent limits in Lenoir, North Carolina.The City of Lenoir, North Carolina, has recently completed an expansion of its Gunpowder Creek Water Reclamation Facility (WRF), that included the conversion of the four existing process treatment tanks to a four basin sequencing batch reactor (SBR) facility. The plant, owned and operated by the City, was originally constructed during 1976 as a 1.0 million gallon per day (MGD) dual-train contact stabilization wastewater treatment plant.
These systems are a potential alternative for domestic sewage disposal at locations where the evapotranspiration rate exceeds precipitation and wastewater inflows.
Many filtration products are available. Asking the correct questions is important in obtaining an optimum product for the desired application.
Containment and processing of odors, as well as emissions of VOCs (volatile organic compounds) and HAPs (hazardous air pollutants), whether regulatory-driven or good neighbor-/community-driven, are forcing municipal and industrial wastewater facilities to evaluate and re-formulate their processes so they can achieve the mandated or desired atmospheric emission levels.
Wastewater treatment facilities are being force to re-evaluate procedures for containing and processing odors and emissions of VOCs and HAPs as a result of new regulations
You are familiar with the water quality problems in your area, but finding a line of equipment that you can have faith in, that is reliable and consistently performs as claimed, may not be as easy as it first appearsThe water treatment business is growing rapidly and all signs point to a continued steady growth. As new technologies emerge, the already complicated business of selling water treatment equipment becomes more complex.
By adding filtration and disinfection to their wastewater treatment plantthe East Chicago Sanitary District has found some strange and welcome inhabitants in the disinfection contact chamber.