Organoclay Provides Membrane Protection for Aircraft Part Manufacturer

A manufacturer of air craft components generates a free and emulsified oily wastewater that results from their machining, milling, cutting and other operations.


Presently, they are using skimmers and dissolved air flotation to remove oil from the water.

Deck: 

Problem Solvers

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11004

Filter Process Removes Cryptosporidial Oocysts From Water Supplies

A backwashable depth filter process removes and destroys these microorganisms with great efficiency.

About The Author: 

James A. Bell, P.E., is the vice-president of technical services at Smith & Loveless, Inc., a manufacturer of water treatment equipment in Lenexa, Kan.

Dr. Graeme K. Pearce is the technical director of Kalsep Ltd. of the United Kingdom.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10811

Pilots Prove that Larger is Better

Tertiary Filtration Piloting conducted at two different WWTPs demonstrate improved performance of large anthracite media compared to dual and single sand media filtration.

Deck: 

Editorial Emphasis

About The Author: 

Bill Scully is the marketing manager for the United States Filter Corporation's General Filter and Microfloc Products. For further information, visit their website at http://usfilter.com

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10825

On-site System Handles Shopping Center Wastewater Treatment

As part of Westbrook Factory Stores' commitment to a clean and safe environment, an advanced ZenoGem® on-site wastewater treatment and reclamation system has been installed.

Deck: 

Problem Solvers

About The Author: 

ZENON Municipal Systems, Inc., Ann Arbor, MI
Phone 313-769-9508

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10828

Nashville Solves CSO Floatables Problem

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.

Deck: 

Problem Solvers

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10698

Ozone, Direct Filtration System Performance Prove Technology's Value

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.

Deck: 

Products at Work

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10636

Granular Activated Carbon Filtration & Nitrification

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.

Deck: 

GAC filter media is widely used for filtration and absorption, but potential problems with bacteria in GAC's application need to be explored

About The Author: 

Shin-ichi Tokuno is a microbiologist with the Water Utilities Laboratory for the City of Corpus Christi, Texas.

Publication Date: 
December 28, 2000
Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10599

City Converts Wastewater Treatment Facility to Sequencing Batch Reactors

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.

Deck: 

Sludge treatment

About The Author: 

Michael J. Waresak, P.E., is a project engineer with McGill Associates, P.A., Asheville, NC. McGill provides consulting services in the fields of water and wastewater engineering planning and site development.

Publication Date: 
December 28, 2000
Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10574

Engineering Parameters in the Design of Evapotranspiration Beds

These systems are a potential alternative for domestic sewage disposal at locations where the evapotranspiration rate exceeds precipitation and wastewater inflows.

Deck: 

Sewage Disposal

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10531

Media-Bed Filtration: Painstaking Analysis of Situation Leads to a Long-Term Solution

Many filtration products are available. Asking the correct questions is important in obtaining an optimum product for the desired application.

Deck: 

Filtration

About The Author: 

E. Marvin Greenstein has a BS in chemical engineering, and a distinguished career in filtration system design and application. He founded LEEM Filtration Products, Inc., Ramsey, NJ, in 1977 and serves as president

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10516
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