Volatile sulfur compounds from a redox-controlled-cattle-manure slurry

Journal Article · Sat Jan 01 04:00:00 EST 1983 · J. Environ. Qual.; (United States)

DOI:https://doi.org/10.2134/jeq1983.00472425001200010020x· OSTI ID:5900229

Beard, W E; Guenzi, W D

Volatile S compounds have been implicated as contributors to the odor problem from cattle-feedlots. This study was designed to evaluate the effects of oxidation-reduction potentials (E/sub h/) on the type and amount of volatile S compounds released from cattle manure. The laboratory experiment utilized a manure slurry controlled at pH 7, 30/sup 0/C, and a preselected E/sub h/ levels. The E/sub h/ of the slurry was initially controlled at +300 mV, and subsequently decreased in increments of 100 mV/week through -200 mV. Effluent gases from the incubation flask were trapped, and the S gases analyzed by gas chromatography. Carbonyl sulfide (COS) and carbon disulfide (CS/sub 2/) production was low (less than or equal to 0.07 ..mu..g/g manure/d) at all redox levels. Dimethyl sulfide (DMS) and dimethyl disulfide (DMDS) were highest at 0 mV, while hydrogen sulfide (H/sub 2/S) and methanethiol (MeSH) were greatest at -100 mV. The total amount of S volatilized from the manure slurry as each compound was: H/sub 2/O, 155 ..mu..g; MeSH, 135 ..mu..g; DMS, 83..mu..g; DMDS, 27 ..mu..g; COS, 8 ..mu..g; and CS/sub 2/, 3 ..mu..g; representing about 1.7% of the total manure S.

• Research Organization: USDA, Fort Collins, CO
• OSTI ID: 5900229
• Journal Information: J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 12:1; ISSN JEVQA
• Country of Publication: United States
• Language: English

Related Subjects

510200* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AGRICULTURAL WASTES
ANIMALS
BENCH-SCALE EXPERIMENTS
CATTLE
CHROMATOGRAPHY
DISPERSIONS
DOMESTIC ANIMALS
ENVIRONMENTAL TRANSPORT
GAS CHROMATOGRAPHY
GASEOUS WASTES
MAMMALS
MANURES
MASS TRANSFER
MIXTURES
ODOR
ORGANIC WASTES
ORGANOLEPTIC PROPERTIES
PH VALUE
REDOX POTENTIAL
RUMINANTS
SEPARATION PROCESSES
SLURRIES
SULFUR COMPOUNDS
SUSPENSIONS
VERTEBRATES
VOLATILITY
WASTES