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Effect of volatile and acid accumulation in dung digestion

Journal Article:

Abstract

In continuation of laboratory experiments on the anaerobic digestion of cow dung experiments were carried out to determine the limiting concentrations of volatile acids and to investigate methods of regenerating digestion after failure. Volatile acids were increased by adding acetic acid to digesting dung slurry; digestion failed completely when volatile-acid concentration was 6194 mg per litre, at pH 4.4. Attempts were made to regenerate digestion by adding lime, after dilution with water, but although over a period the volatile-acid content was reduced from 5650 to 3730 mg per litre, and the pH value rose on average from 4.5 to 6.3, gas production remained at a low value until additional digested slurry was introduced, leading to resumption of normal digestion.
Publication Date:
Jan 01, 1966
Product Type:
Journal Article
Reference Number:
EDB-78-078064
Resource Relation:
Journal Name: Environ. Health (Nagpur); (India); Journal Volume: 8
Subject:
09 BIOMASS FUELS; MANURES; ANAEROBIC DIGESTION; METHANE; BIOSYNTHESIS; ACETIC ACID; BENCH-SCALE EXPERIMENTS; CARBOXYLIC ACIDS; COWS; FAILURES; PH VALUE; REGENERATION; AGRICULTURAL WASTES; ALKANES; ANIMALS; BIOCONVERSION; CATTLE; CRYOGENIC FLUIDS; DIGESTION; DOMESTIC ANIMALS; FLUIDS; HYDROCARBONS; MAMMALS; MANAGEMENT; MONOCARBOXYLIC ACIDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; PROCESSING; RUMINANTS; SOLID WASTES; SYNTHESIS; VERTEBRATES; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; 090122* - Hydrocarbon Fuels- Preparation from Wastes or Biomass- (1976-1989)
OSTI ID:
5078922
Country of Origin:
India
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: ENHEA
Submitting Site:
TIC
Size:
Pages: 194-196
Announcement Date:

Journal Article:

Citation Formats

Rajagopal, G, and Pathak, B N. Effect of volatile and acid accumulation in dung digestion. India: N. p., 1966. Web.
Rajagopal, G, & Pathak, B N. Effect of volatile and acid accumulation in dung digestion. India.
Rajagopal, G, and Pathak, B N. 1966. "Effect of volatile and acid accumulation in dung digestion." India.
@misc{etde_5078922,
title = {Effect of volatile and acid accumulation in dung digestion}
author = {Rajagopal, G, and Pathak, B N}
abstractNote = {In continuation of laboratory experiments on the anaerobic digestion of cow dung experiments were carried out to determine the limiting concentrations of volatile acids and to investigate methods of regenerating digestion after failure. Volatile acids were increased by adding acetic acid to digesting dung slurry; digestion failed completely when volatile-acid concentration was 6194 mg per litre, at pH 4.4. Attempts were made to regenerate digestion by adding lime, after dilution with water, but although over a period the volatile-acid content was reduced from 5650 to 3730 mg per litre, and the pH value rose on average from 4.5 to 6.3, gas production remained at a low value until additional digested slurry was introduced, leading to resumption of normal digestion.}
journal = {Environ. Health (Nagpur); (India)}
volume = {8}
journal type = {AC}
place = {India}
year = {1966}
month = {Jan}
}