As oil prices remain high, the U.S. is in the midst of a nationwide initiative to seek renewable sources of energy to increase energy efficiency and energy security. Renewable energy accounted for 13.2% of the domestically produced electricity in 2012. Among the sources of renewable energy is the production of biogas from landfill gas (LFG) or digester gas. The production of biogas is an anaerobic process in which microorganisms break down (digest) biodegradable material in the absence of oxygen.
For the Santa Cruz Wastewater Treatment Facility (WWTF), dependability matters. Since 1989, this state-of-the-art WWTF, nestled in a shallow canyon in the coastal city of Santa Cruz, Calif., has been leading the way for renewable energy programs and environmental protection in the West.
Santa Cruz WWTF generates its own electric power by using internal combustion engines that burn a mixture of methane gas produced by the sewage digestion process and purchased natural gas, producing 7.4 million kWh of electric power per year.
In 2008, after experiencing two years of drought and the driest spring in recorded history, water reserves in California were desperately low.
Carmel Riviera, which serves up to 600 residents living along California’s Big Sur Coast, made the choice to upgrade to high-performance flow measurement instrumentation to understand exactly where water was going.
Flowmeters provide more efficient aeration basin flow monitoring