The Force of Law: Increasingly Complexity of Environmental Problems
During the 1970s, environmental issues seemed straight-forward. Today, the increased number of chemicals that have been introduced into the environment are producing greater risks, and the complexity of the effects of those risks are better understo...
The Paint and Surface Coating Industries: The Auto Body Industry
For decades, workers in the auto body industry were exposed to hazardous emissions, and pollutants were leached into the air. As a result, auto paint manufacturers resolved to develop more environmentally friendly paints. Today's auto paints are g...
Petroleum Refining and Waste Minimization: Waste Minimization
Environmental professionals constantly monitor, analyze and audit the treatment and disposal of both hazardous and non-hazardous wastes--a challenging assignment given the number of solid, liquid and gaseous waste streams created at a refinery.
The Paint and Surface Coating Industries: Architectural Coatings
The dangers of lead-based paints were essentially unknown to the public until the 1970's. At that time, over four million children were found to have elevated levels of lead in their blood as a result of breathing dust from deteriorating lead-based...
Thermal Treatment Technologies: Hazardous Waste Incinerators
Because most hazardous wastes cannot be landfilled, incineration provides an alternative. Whereas municipal waste incineration must meet the requirements of the Clean Air Act, hazardous waste incineration must comply with the Resource Conservation ...
Thermal Treatment Technologies: Municipal Waste and Reciprocating Grate Systems
One of the thermal treatment technologies that strives to make the best use of time, temperature and turbulence is the reciprocating grate incinerator, used by nearly 250 municipalities.
The Force of Law: Developing Environmental Regulations
The Environmental Protection Agency is charged with setting appropriate environmental standards; doing so based on credible scientific research, peer review, public review, and independent of the influence of special interests.
Chemical Treatment Technologies: Oxidation and Reduction: An Overview
While some metals can be readily precipitated, others cannot be until they are reduced. The clarified water resulting from these processes can then be discharged into a municipal wastewater treatment system.
Chemical Treatment Technologies: Innovative Oxidation Processes
To reduce the reliance on harmful chlorinated oxidizing agents, the EPA has conducted numerous demonstrations of the effectiveness of safer oxygen-based compounds. The performance of these oxidizers can be enhanced by the addition of powerful ultra...
Chemical Treatment Technologies: Ozonation
Traditionally, chlorine has been used as a disinfectant to kill viruses and bacteria in drinking water. However, chlorine has the disadvantage of reacting with organics in the water, producing potentially carcinogenic by-products. Ozonation, an ox...