Enzymatic treatment of primary municipal sludge with Trichoderma viride cellulase

Journal Article · Tue Mar 01 04:00:00 EST 1977 · Biotechnol. Bioeng.; (United States)

DOI:https://doi.org/10.1002/bit.260190308· OSTI ID:7278987

Cinq-Mars, G V; Howell, J

Enzymatic hydrolysis of the cellulose in raw primary settled municipal sludge by Trichoderma viride cellulase achieved conversions of up to 75 percent of the cellulose, primarily to cellobiose, in 24 hr. Simultaneously the gel-like characteristic of raw primary sludge was changed to that of a slurry of fine particles in less than 2 hr, causing a radical change in the ability to ultrafilter the sludge. The use of raw primary sludge as a growth medium for T. viride cellulase production was also investigated. It was possible, with nitrogen supplements, to obtain an enzyme with a filter paper activity (FPA) of two compared to over four which is attainable on defined medium of similar strength. The potential use of cellulase treatment as a pretreatment or integral part of waste treatment processes is discussed and the alternatives evaluated.

• Research Organization: SUNY, Buffalo
• OSTI ID: 7278987
• Journal Information: Biotechnol. Bioeng.; (United States), Journal Name: Biotechnol. Bioeng.; (United States) Vol. 19:3; ISSN BIBIA
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320604* -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
BIOMASS
CHEMICAL REACTIONS
DECOMPOSITION
ENERGY SOURCES
ENZYMATIC HYDROLYSIS
FUNGI
HYDROLYSIS
LYSIS
PLANTS
RENEWABLE ENERGY SOURCES
SEWAGE
SEWAGE SLUDGE
SOLVOLYSIS
STABILIZATION
TRICHODERMA VIRIDE
WASTES