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Environment, Health, Safety & Security

Scaleup for a CO2 mineralization process

A pilot plant will be established at the University of Newcastle (Newcastle, Australia; www.newcastle.edu.au) to test a new technology for the sequestration of CO2 through mineral carbonation — the reaction with magnesium silicate minerals, such as serpentine, to form mineral…

A ‘new’ concept for CO2 capture: birds’ lungs

Researchers at the University of California Irvine (UCI, Irvine CA; www.chem.uci.edu) have taken a cue from nature in devising a way to remove carbon dioxide from fluegas. They are developing a synthetic membrane based on the design and function of…

Ceramic membranes and O3 combine to treat wastewater

High fluxes and micro-contaminant reduction have been achieved in a 2.5-m3/h pilot plant to test the performance of ceramic membranes and ozonation in treating wastewater at Melbourne Water’s (www.melbournewater.com.au) Eastern Treatment Plant. The project, to be completed in a few…

Focus on Safety Equipment

Newson Gale Avert static electricity buildup with this hose-continuity tester The OhmGuard Hose-Continuity Tester is designed to continuously ensure that a string of assembled hoses are safely grounded to the transferring vehicle during operations that may produce potentially combustible gas,…

A solid way to eliminate contaminants from wastewater

CSIRO Minerals Down Under Flagship (Perth, Western Australia; www.csiro.au/MDU) has developed a method that uses hydrotalcite formation to simultaneously remove contaminants from mining and industrial wastewaters in a single step. Current wastewater-treatment processes typically produce lime-based slurries, often with large…

Securing Industrial Control Systems

Security of SCADA (supervisory control and data acquisition) and other industrial control systems (ICSs) is a complex subject, and one that has received much attention in recent years. While modern industrial control systems use many of the same computers, operating…

A gas turbine with low NOx emissions

NEDO  and Hitachi Ltd. (Tokyo, www.hitachi.com) have developed a new combustion technology that could reduce the emissions of oxides of nitrogen (NOx) to below 10 ppm without the addition of diluents. As part of the CCS-IGCC project (carbon capture and…

Burner technology enables reduced NOx with short flame length

To comply with increasingly stringent regulations for NOx emissions, operators of industrial plants often turn to low-NOx burners to avoid much more costly post-combustion treatment approaches like selective catalytic reduction (SCR). But low-NOx burners are plagued by significant losses in…

These scavengers of water pollutants have a magnetic attraction

A process that uses magnetic nanoparticles, coated with a reactive material, to clean up contaminated water for human use is being developed at Stanford University (Stanford, Calif.; www.stanford.edu). The nanoscavengers, as they are called, are distributed in the water to…

A salty way to scrub CO2

Ammonia is a promising candidate for scrubbing carbon dioxide from fluegas, since each ammonia molecule can absorb one molecule of CO2, whereas amine absorbers require two molecules to do the same job. However, because ammonia is volatile, the fluegas must…