Search

The article discusses the development of the wet electrostatic precipitator (Wet ESP) as an answer to a demand for better gas cleaning technology in the U.S. It highlights the technical and mechanical advantages of the technology and the distinction between dry and wet precipitation. It examines the use of the wet precipitation process on a variety of gas-cleaning applications. It presents several advancements which have enhanced the technology and the development of wet ESPs from a range of materials.

The article describes a system evaluation tool to guide business enterprises regarding mercury compliance strategy in the U.S. Several states have mandated faster and/or deeper reductions in power plant mercury emissions than those called for by the U.S. Clean Air Mercury Rule (CAMR). Unfortunately, differences between plants make accurate evaluation of control options difficult. The modeling tool developed by the company Niksa Energy Associates called MercuRator solves that problem. Because it is based on dynamic reaction analysis (DRA), its equations account for the rates of all chemical reactions in a gas cleaning system that affect mercury emissions.

Reports on the identification of the Illinois Community High School, the first institution to have its heat and electrical production powered by landfill gas. Installation of the gas cleaning and compression system; Decrease in emissions through reduced need for traditional electrical generation sources; Advantages of microturbine technology over traditional internal combustion engines.

The article reports on the confirmation by the U.S. National Oceanic and Atmospheric Administration (NOAA) on the efforts of Georgia Tech to measure hydroxyl (OH) radical, the key molecule for removing greenhouse gases from the atmosphere. At first the company's efforts has been responded with apprehension by the scientists because OH is so reactive and exists in low concentrations. In the test conducted by George Mount from the NOAA, he used a long patch laser spectroscopic absorption technique while in Georgia's test, conducted by Fred Eisele, he used an ion assisted chemical analysis.