Reservoir Tank Is One of A Kind   Water & Wastes Digest May 2005   By Judy Horning
This expansion project is part of a long-term citywide capital improvement program to improve the infrastructure and services that provide San Diegans with safe drinking water.

Technological Improvements for the Aerobic Digestion of Sludge   Water Engineering & Management August 2001   Izrail S. Turovskiy, D. Sc.
Aerobic digestion of low concentrated activated sludge with the heating of digested sludge can produce biosolids that meet 503 Class A sludge regulations.
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Innovative Odor Control -- A Good Neighbor Program   Water & Wastes Digest February 2001
The Water and Wastewater Utility Department of the city of Austin, Texas, manages the operation of a regional sludge processing facility where they faced an odor problem. Working with a consultant, they purchased a fixed bed, iron oxide based odor control system from The SulfaTreat Company.
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Water Reuse for Drought-proof Industrial Water Supply in San Diego   Water & Wastes Digest November 2000
A 200,000 gallon per day (gpd) advanced microfiltration system treats secondary wastewater effluent for reuse as process water for Toppan Electronics, Inc. in San Diego, Calif.

Pennsylvania Filtration Plant Helps Meet NPDES Discharge Requirements   Water & Wastes Digest October 2000
In the early 1990s, the Milford-Trumbauersville Area Sewer Authority in Bucks County, Pennsylvania, recognized the need to upgrade the existing sewage treatment plant. This was necessary to increase capacity and to meet future more stringent requirements set by the Pennsylvania Department of Environmental Protection for Unami Creek.

Filtration Process Restores Murky Pools   Water Engineering & Management March 1999   Jim Jebbia and David Simon
One Hawaiian hotel was able to quickly fix a filter problem that was turning its tropical ponds into a milky and murky mess.

Traveling Bridge Filter Problems Eliminated   Water & Wastes Digest March 1999
Bethel Park, Pennsylvania installed two 4MGD traveling bridge filters in 1980. According to Joe Witkowski, who manages the facility, "We had serious media leakage with our old filters. We had continuous backwashing and mechanical problems - they just couldn't handle high flows. Plus, they had serious media leakage problems."

Underdrain Plate for Potable Water Filtering Provides for Retention of Media   Water Engineering & Management November 1998

Large Anthracite Media Does the Job   Water & Wastes Digest September 1998   Bill Scully
Tertiary Filtration Piloting conducted at two different WWTPs demonstrate improved performance of large anthracite media compared to dual and single sand media filtration.

Membrane Technology Offers High Quality Water at Low Cost for Ontario Municipality   Water Engineering & Management July 1998
Two factors have significantly changed the course of the Township of Ernestown's, located in eastern Ontario, search for a cost-effective approach to upgrading its Amherst (population 6,100) water system.

Reverse Osmosis Used to Purify and De-nitrify Water in a Municipal Plant   Water Engineering & Management May 1998

A Clear View of the Titanic   Water Engineering & Management March 1998

Ozone, Direct Filtration System Performance Prove Technology's Value   Water Engineering & Management March 1997
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.

Granular Activated Carbon Filtration and Nitrification   Water Engineering & Management February 1997   Shin-ichi Tokuno
GAC filter media is widely used for filtration and absorption, but potential problems with bacteria in GAC's application need to be explored.
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Media-Bed Filtration: Painstaking Analysis of Situation Leads to a Long-Term Solution   Water Engineering & Management October 1996   E. Marvin Greenstein
Many filtration products are available. Asking the correct questions is important in obtaining an optimum product for the desired application.

Cost-Effective Treatment for High Quality Water Sources: Extreme/High-Rate Serial Filtration   Water Engineering & Management February 1996   Craig M. Thompson
Pilot tests have demonstrated that EHRSF can meet Surface Water Treatment Rule requirements.

Membrane Applications in Water Plants   Water Engineering & Management August 1995   Ian Lisk
Faced with upgrading aging facilities, a Florida water utility decided to incorporate reverse osmosis.

Membrane Specialists Gather for International Conference   Water Engineering & Management May 1995   Ian Lisk
The latest on membrane technology for water treatment.

Automated High Rate Filters Improve Performance, Reduce Costs   Water Engineering & Management April 1995   Morrison Coulter
A Philadelphia water company improved the performance of and reduced the operating costs of its filtration system with modernized high-rate gravity filters.

Pennsylvania Program Helps Improve Drinking Water Safety and Quality   Water Engineering & Management March 1995   Phil J. Consonery
One state's plan to improve the performance of surface water filtration plants and achieve better water quality.