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Lower emission limits for biogas engines in SCAQMD as of January 2016

SCAQMD rule for biogas effective 2016 limits emissions to 11 ppmv NOx – 30 ppmv VOC – 250 ppmv CO Stakeholders have commented that the capital and operating costs for cleaning up the biogas are very high and post-combustion control technologies such as Catalytic Oxidation and Selective Catalytic Reduction (SCR) are expensive to install and operate and argued that many of them will resort to flaring as a less costly alternative. Response: •The costs are significant but the environmental benefits are also significant. •Proposed controls are very cost effective. •Reasonable emission reductions such as those from biogas engines needed to meet the ambient air quality standards. •Flaring of a renewable energy source is undesirable. •Biogas flaring, except for a small Greenhouse Gas disbenefit, has a much lower criteria pollutant footprint compared to biogas engines, even considering power that needs to be generated by central power plants.

Revision Date:  8/23/2016

Tags:  562212 - Solid Waste Landfill , Regulation, SCAQMD, Emissions Control

Multiple routes for siloxane removal from biogas

Cormetech cites low persmissib levels of siloxane. Wastewater treatment plants and landfills have higher siloxane levels. A variety of treatment methods include consumables such as as activated carobn, regenerative with resins, and even chlller/adsorbers.

Revision Date:  8/23/2016

Tags:  562212 - Solid Waste Landfill , Siloxane, Emissions Control

CEMS for Calabas Landfill Gas by Len Richter, Cisco - Hot Topic Hour April 17, 2014

Cilsco supplied the CEMS for this California land fill gas project which uses solar turbines. NOx is 7 ppm and CO is 3 ppm

Revision Date:  4/15/2014

Tags:  562212 - Solid Waste Landfill , 221118 - Other Electric Power , Cisco, Solar Turbines, Analyzer - Nox, Continuous Emissions Monitor, Nox Monitoring, Monitoring, USA