Novel two-phase upflow digestion of wet-carbonized peat product water

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6818472

Sajjad, A; Henry, M P; Srivastava, V J; Mensinger, J

This paper presents the development and operating results of a novel two-phase upflow anaerobic digestion process for the conversion of organic matter present in the process effluent generated during the wet-carbonization processing of peat. It exhibited a methane yield of 3.0 SCF/lb chemical oxygen demand (COD) added during thermophilic (55/degree/C) digestion at a short hydraulic retention time of (HRT) 3 days. This yield represents approximately 90% of the ultimate methane yield for this process effluent. About 80% of the feed biological oxygen demand (BOD) and 65% of COD was converted during the anaerobic digestion process. This innovative process has a substantive beneficial impact on the production of net energy and availability of surplus digester methane for conversion to other energy forms such as hot water or low-pressure steam for in-process use. 12 refs., 6 figs., 7 tabs.

• Research Organization: Institute of Gas Technology, Chicago, IL (USA)
• DOE Contract Number: AC22-83PC60775
• OSTI ID: 6818472
• Report Number(s): CONF-870364-5; ON: DE88017156
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
ALKANES
ANAEROBIC DIGESTION
BIOCHEMICAL OXYGEN DEMAND
BIOCONVERSION
CARBONIZATION
CHEMICAL OXYGEN DEMAND
CHEMICAL REACTIONS
DECOMPOSITION
DIGESTION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
METHANE
ORGANIC COMPOUNDS
ORGANIC MATTER
OXYGEN COMPOUNDS
PEAT
PROCESSING
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER
YIELDS