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Pollutants

Company to Reduce Hazardous Emissions from Mississippi Facility

December 18, 2007

Comments Sought on Endocrine Disruptor Screening Program

December 13, 2007

Superfund Settlement to Cost San Bernardino County $11 Million

November 10, 2007

Maximizing Your Monitoring Power

October 1, 2007By M. Y. Z. Aboul Eish, Ph.D., Robert H. Clifford, PhD

Online water-quality analyzers offer time-saving solutions for dealing with pending EPA regulations related to nutrients in wastewater and water

As water and wastewater facilities prepare for pending U.S. Environmental Protection Agency (EPA) criteria on water nutrient levels, online monitoring systems are proving to be an effective and efficient means of regulating the parameters.

The Public's Health Gets Taken to the Cleaners

October 1, 2007By Laurie Earl

Seeking a new approach to deal with groundwater pollution caused by dry-cleaning chemicals

ABCs of CWT

July 1, 2007By Drew Frye

Centralized waste treatment: the guidelines for treating liquid wastes and how they affect you

As a part of the Clean Water Act, the U.S. Environmental Protection Agency (EPA) is required to provide effluent guidelines to particular industries, whether they discharge wastewater to surface water or publicly owned treatment works (POTW).

Mercury's Rising Impact

June 1, 2007By Constance L. Senior

This contaminant, a combustion byproduct of power plants, is increasingly polluting land and water through air-borne deposition

Mercury is getting a lot of attention, both in the popular press and in state and federal regulatory agencies. Combustion systems, like coal-fired power plants, industrial boilers, incinerators, and cement kilns, are sources of mercury emissions to the air. This article outlines the mercury emission regulations that apply to different combustion systems and the best demonstrated means to control these emissions from combustion sources. This article focuses on utility and industrial combustion systems because they are the highest emitters and face the greatest reductions and tightest scrutiny.

Preparing For a Rainy Day

November 1, 2006By Matthew Van Patten, PE, CHMM, Michael E. Yost

A guide to stormwater maintenance, inspection, and regulatory compliance

When we think of pollution, most of us conjure up images of smokestacks or drums of hazardous waste. But one of the most significant sources of water pollution in the United States today is stormwater runoff, and it merits the full attention of industrial and commercial facilities alike.

Wildcatting In Wastewater

October 1, 2006By Tom Hobson

Record high oil prices are causing manufacturers to seek profitable ways to extract oil from their wastewater

Since last year, when crude oil prices soared and gasoline topped $3 per gallon, requests for skimmers to be used for recycling oil from plant wash water, municipal wastewater, machine shop coolant, and contaminated groundwater have increased 25 percent according to one major supplier of oil skimming equipment.

Resurrecting the Dead Zone

September 1, 2006By Erica Pincus

Reducing U.S. agribusiness' nitrogen runoff could reverse past damage to the Gulf of Mexico

The Dead Zone -- sounds creepy doesn't it? But what is it? It's a crisis that's attacking oceans and bays throughout the world, and a reality more frightening than current governmental policies and actions have led the public to believe.

A Shock to the System

June 1, 2006By Darin St. Germain

A new, stricter arsenic rule is starting to affect small and large water supplies

On Jan. 23, 2006, the arsenic rule was implemented with a new limit of 10 parts per billion (ppb) (the old standard was 50 ppb). The new rule has a broad reach; it affects large and small drinking water treatment systems, including non-community water supplies.

Oxidants on the Job

June 1, 2006By Jason Muessig

Chemical oxidation is proving successful in degrading soil and groundwater contaminants

The need for removal and destruction of contaminants of concern (COC), like petroleum hydrocarbons and chlorinated organics, in soil and groundwater has led to the development of a wide range of technologies for both in ground (in-situ) and above ground (ex-situ) treatment of these contaminants.

Battling the Blue

November 1, 2005By Joseph F. Lorenz, Ronald E. Hutchens

Dense non-aqueous phase liquids can present a unique problem for cleanup operations

What's bright blue, heavier than water and mostly insoluble? In the case of a brownfield site in the Midwest, the answer is a daunting remediation challenge.

Water Quality Management 101

October 1, 2005By W. Wesley Eckenfelder, William Ney Hansard

A basic overview of the key concepts related to treating municipal and industrial wastewater

Over the past few decades there has been an increased awareness of the importance of water quality. Many municipalities and industrial facilities have upgraded or installed new technologies to meet the demand for clean water. Advances in water quality science show that further improvements are needed to ensure a plentiful water supply and to protect the natural environment.

More Results with Less Infrastructure

May 1, 2005By David Laughlin

A low impact remediation strategy for mobile MTBE plumes

Groundwater impacted by methyl tertiary butyl ether (MTBE) continues to challenge remediation efforts around the country, and it remains a high priority for many companies due to the potential for contamination of potable groundwater supplies. MTBE is a flammable liquid that is used as an additive in unleaded gasoline.