Clean Combustion of Sludge Derived Fuel Part 1 of 2 - Concept to Pilot

Haug, Roger T.; Lewis, F. Michael

doi:10.2175/193864713813537047

Cited by 1 publication

(2 citation statements)

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“…In a similar timeframe, the city of Los Angeles constructed an extensive sludge gasification system with three trains, each with a capacity of 120 dtpd. The system was noted to have operated for 10 years until being decommissioned due to difficulties with the Carver‐Greenfield drying process and other considerations (Haug & Lewis, 2014).…”

Section: Pyrolysis and Gasification Overviewmentioning

confidence: 99%

“…Pyrolysis and gasification have long garnered interest for their ability to convert difficult‐to‐handle organic feedstocks into gaseous or liquid fuels that can more easily be stored and used in conventional combustion applications (Bridle & Skrypski‐Mantele, 2004; Haug & Lewis, 2014; Kroll et al, 1983). Additionally, these techniques can process the solid phase material into a carbon‐rich product, called char or biochar, with unique and valuable properties for agricultural and industrial applications (Callegari & Capodaglio, 2018).…”

Section: Pyrolysis and Gasification Overviewmentioning

confidence: 99%

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Pyrolysis and gasification at water resource recovery facilities: Status of the industry

Winchell

Ross

Brose

et al. 2022

Water Environment Research

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Wastewater treatment generates solids requiring subsequent processing. Costs and contaminant concerns (e.g., per‐ and polyfluoroalkyl substances [PFAS]) are challenging widely used landfilling and land application practices. These circumstances are partly driving the re‐emergence of pyrolysis and gasification technologies along with beneficial reuse prospects of the char solid residual. Previously, technologies experienced operational challenges leading to revised configurations, such as directly coupling a thermal oxidizer to the reactor to destroy tar forming compounds. This paper provides an overview of pyrolysis and gasification technologies, characteristics of the char product, air emission considerations, and potential fate of PFAS and other pollutants through the systems. Results from a survey of viable suppliers illustrate differences in commercially available options. Additional research is required to validate performance over the long‐term operation and confirm contaminant fate, which will help determine whether resurging interest in pyrolysis and gasification warrants widespread adoption. Practitioner Points Pyrolysis and gasification systems are re‐emerging in the wastewater industry. Direct coupling of thermal oxidizers and other modifications offered by contemporary systems aim to overcome past failures. Process conditions when coupled with a thermal oxidizer will likely destroy most organic contaminants, including PFAS, but requires additional research. Three full‐scale facilities recently operated, several in construction or design that will provide operating experience for widespread technology adoption consideration.

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Section: Pyrolysis and Gasification Overviewmentioning

confidence: 99%