Landfill leachate and other challenging wastewaters incur rising treatment and disposal costs. Technology developed by Heartland Water Technology, Inc. (Hudson, Mass.; www.heartlandtech.com) can lower costs for treating wastewater by slashing wastewater volumes by 95% or more, using waste heat as…
H2SO4 Catalyst BASF SE (Ludwigshafen, Germany; www.basf.com) has introduced a new catalyst for making sulfuric acid. The cesium-based O4-115 Quattro catalyst has a unique geometrical shape — a combination of four strands — leading to a 30% greater catalytic surface…
In boilers, silicates can volatilize with the generated steam and then form silicate glass on turbine blades, causing an imbalance. Therefore, the concentration of silicates in boiler circuits must be reduced to below 0.5 parts per million (ppm). The conventional…
A new adsorption-based technology can separate ozone from oxygen in O3-generating systems, allowing recycling of unreacted O2. In corona-discharge O3 generation, O2 molecules are split by passage through an electric field to create free oxygen atoms, which quickly combine with…
Researchers at the Georgia Institute of Technology (Ga. Tech; Atlanta; www.gatech.edu) have demonstrated a precision-machining technique to manufacture an entire pumping loop from materials that can withstand temperatures as high as 1,400–1,600°C. These materials are typically thought to be too…
Trash bags Barrier films used in food packaging are difficult to recycle effectively, because they often contain multiple polymers that are not compatible with one another in the mixing steps required for the recycling process. Now, trash bags made from…
For petroleum refineries, the cost of converting hydrofluoric-acid-based alkylation units to the relatively safer sulfuric-acid-based alkylation process (diagram) has been cost-prohibitive and has lacked specific economic benefits. Now, DuPont (Wilmington, Del.; www.dupont.com) has developed a low-cost approach to converting existing…
Microbes inhabiting the extreme environments thousands of feet below the earth’s surface possess unique properties not encountered elsewhere. A research consortium of South Dakota School of Mines and Technology (SDSMT; Rapid City; www.sdsmt.edu), University of Oklahoma (Norman) and Montana State…
Chemists and engineers from the Performance Materials Segment of Evonik Industries AG (Essen, Germany; www.evonik.com) have developed a new process for making methyl methacrylate (MMA). With a yield of over 90%, the so-called Leading in Methacrylates (LiMA) process can be…
A triple-layer, porous membrane system developed at the Functional Materials Laboratory at Eidgenössische Technische Hochschule Zürich (www.fml.ethz.ch) can be fashioned into evaporative curtains to cool and humidify indoor spaces, potentially decreasing the energy demand for climate-control systems. Juxtaposing opposite forces…