Biogas & Electric LLC is developed technology to reduce emissions in biogas engines to make the anaerobic digestion process cleaner. Automobiles and other mobile sources contribute about half of the NOx that is emitted while electric power plant boilers produce about 40% of the NOx emissions from stationary sources. Substantial emissions are also added by industrial boilers, incinerators, gas turbines, reciprocating spark ignition and diesel engines in stationary sources, iron and steel mills, cement manufacture, glass manufacture, petroleum refineries, and nitric acid manufacture. Natural sources of nitrogen oxides include lightning, forest fires, grass fires, trees, bushes, grasses, and yeasts. The firm is focusing on the creation of a low cost NOx emissions solution for biogas engine exhaust. Called NOxRx, the project is capable of bringing existing and proposed biogas projects into compliance with strict air quality regulations. In addition to a lower installation cost, NOxRx will also have lower operating costs than other solutions that incur continual catalyst or reactive agent purchases, representing a significant operating cost savings over competing NOx reduction solutions. Anaerobic digestion may serve as a renewable energy source, and reduce methane when utilized at wastewater treatment plants, dairies, and landfills. One of the biggest challenges for the anaerobic digester industry was the reduction of harmful emissions generated by the process. Stringent standards enforced by the California Air and Resources Board (CARB), and other regional air boards require the reduction of oxides of nitrogen (NOx) emitted during the anaerobic digestion process. NOx is known to cause an array of health problems including asthma.
