The Best Carbon for the Job: Using the 2010 WERF Protocol to Choose an External Carbon Alternative for Enhanced Nitrate Removal

Sigmon, Cole; Weiric, Scott; Douville, Chris

doi:10.2175/193864714815940938

Cited by 1 publication

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“…On-site testing and process modeling pointed to the same cause of incomplete denitrification: a carbon limitation in the anoxic zones of the WWTF's MLE process (see Sigmon et al, 2014). The use of data from an online TOC Analyzer allowed the City of Boulder WWTF to demonstrate that the diurnal patterns of carbon and nitrogen were offset enough to contribute to the WWTF's carbon limitation.…”

Section: Methods and Objectivementioning

confidence: 99%

Online total organic carbon (TOC) monitoring for water and wastewater treatment plants processes and operations optimization

Assmann

Scott

Biller

2017

Drink. Water Eng. Sci.

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Abstract.Organic measurements, such as biological oxygen demand (BOD) and chemical oxygen demand (COD) were developed decades ago in order to measure organics in water. Today, these time-consuming measurements are still used as parameters to check the water treatment quality; however, the time required to generate a result, ranging from hours to days, does not allow COD or BOD to be useful process control parameters -see (1) Standard Method 5210 B; 5-day BOD Test, 1997, and (2) ASTM D1252; COD Test, 2012. Online organic carbon monitoring allows for effective process control because results are generated every few minutes. Though it does not replace BOD or COD measurements still required for compliance reporting, it allows for smart, data-driven and rapid decision-making to improve process control and optimization or meet compliances. Thanks to the smart interpretation of generated data and the capability to now take real-time actions, municipal drinking water and wastewater treatment facility operators can positively impact their OPEX (operational expenditure) efficiencies and their capabilities to meet regulatory requirements. This paper describes how three municipal wastewater and drinking water plants gained process insights, and determined optimization opportunities thanks to the implementation of online total organic carbon (TOC) monitoring.

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Section: Methods and Objectivementioning

confidence: 99%