Composting process design criteria. II. Detention time

Journal Article · Mon Sep 01 00:00:00 EDT 1986 · BioCycle; (United States)

OSTI ID:5657623

Haug, R T

Attention has always been directed to detention time as a criteria for design and operation of composting systems. Perhaps this is a logical outgrowth of work on liquid phase systems, where detention time is a fundamental parameter of design. Unlike liquid phase systems, however, the interpretation of detention time and actual values required for design have not been universally accepted in the case of composting. As a case in point, most compost systems incorporate facilities for curing the compost product. However, curing often is considered after the fact or as an add on with little relationship to the first stage, high-rate phase, whether reactor (in-vessel), static pile, or windrow. Design criteria for curing and the relationships between the first-stage, high-rate and second-stage, curing phases of a composting system have been unclear. In Part 2 of this paper, the concepts of hydraulic retention time (HRT) and solids residence time (SRT) are applied to the composting process. Definitions and design criteria for each are proposed. Based on these criteria, the first and second-stages can be designed and integrated into a complete composting system.

• OSTI ID: 5657623
• Journal Information: BioCycle; (United States), Vol. 27:8
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
SEWAGE SLUDGE
BIODEGRADATION
COMPOSTING
DECOMPOSITION
WASTE PROCESSING PLANTS
DESIGN
COMPOST
EXPERIMENTAL DATA
MUNICIPAL WASTES
CHEMICAL REACTIONS
DATA
INDUSTRIAL PLANTS
INFORMATION
MANAGEMENT
NUMERICAL DATA
PROCESSING
SEWAGE
SLUDGES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
420900* - Engineering- Waste Processing Plants & Equipment- (-1989)