Anaerobic fermentation of agricultural residues: potential for improvement and implementation. Twelfth quarter progress report, 16 March 1979-15 June 1979 and Addendum describing project activities, 16 June 1979-15 October 1979

Thumbnail image of item number 1 in: 'Anaerobic fermentation of agricultural residues: potential for improvement and implementation. Twelfth quarter progress report, 16 March 1979-15 June 1979 and Addendum describing project activities, 16 June 1979-15 October 1979'.
Thumbnail image of item number 2 in: 'Anaerobic fermentation of agricultural residues: potential for improvement and implementation. Twelfth quarter progress report, 16 March 1979-15 June 1979 and Addendum describing project activities, 16 June 1979-15 October 1979'.
Thumbnail image of item number 3 in: 'Anaerobic fermentation of agricultural residues: potential for improvement and implementation. Twelfth quarter progress report, 16 March 1979-15 June 1979 and Addendum describing project activities, 16 June 1979-15 October 1979'.
Thumbnail image of item number 4 in: 'Anaerobic fermentation of agricultural residues: potential for improvement and implementation. Twelfth quarter progress report, 16 March 1979-15 June 1979 and Addendum describing project activities, 16 June 1979-15 October 1979'.
Showing 1-4 of 56 pages in this report.

PDF Version Also Available for Download.

Description

Five different types of anaerobic fermentor reactor designs were operated, with the majority of effort focused on two full scale reactors (both about 35m/sup 3/), each designed to process the manure residues from up to 65 dairy cows. Three pilot units (5m/sup 3/ volume) are being operated to determine the limits of operation variables - temperature, labor inputs, mixing, and bedding composition. The low-cost full scale plug flow reactor has now been operated for more than one year, including the winter with the lowest temperature for the longest period recorded for the northern New York area. During the twelfth quarter ... continued below

Physical Description

Pages: 53

Creation Information

Jewell, W.J. January 1, 1979.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Author

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

About | Browse this Partner

Contact Us

Corrections Questions

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

Five different types of anaerobic fermentor reactor designs were operated, with the majority of effort focused on two full scale reactors (both about 35m/sup 3/), each designed to process the manure residues from up to 65 dairy cows. Three pilot units (5m/sup 3/ volume) are being operated to determine the limits of operation variables - temperature, labor inputs, mixing, and bedding composition. The low-cost full scale plug flow reactor has now been operated for more than one year, including the winter with the lowest temperature for the longest period recorded for the northern New York area. During the twelfth quarter the full scale plug flow and conventional control reactors were tested in parallel at new conditions of 15 days and 10 days HRT, 35/sup 0/C and 10 to 12% TS manure feed. Steady state results for the 15 day HRT condition once more indicated a more efficient solids conversion with the plug flow design (34.1% TVS destruction efficiency) than with the completely mixed full scale system (27.8% TVS destruction efficiency) when operated on dairy manure (13% TS) at 35/sup 0/C. No serious operational problems have been encountered with either full scale reactor during the twelfth quarter. Thermal data from the plug flow reactor has now been obtained for a full year cycle. The apparent overall efficiency of the boiler and reactor heating systems varied between 40 and 55%. In order to translate the temperature and operating data of the plug flow unit into a comprehensible energy balance, a computer model for the prediction of energy production and for the description of conducted heat losses and feed heating requirements was developed. Data analysis and the development of certain sections of the final report were given considerable attention throughout the twelfth quarter. The preparation of the farmer's feasibility manual was also initiated during this period.

Physical Description

Pages: 53

Notes

Dep. NTIS, PC A04/MF A01.

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Report No.: COO-2981-12
  • Grant Number: EY-76-S-02-2981
  • DOI: 10.2172/5559286 | External Link
  • Office of Scientific & Technical Information Report Number: 5559286
  • Archival Resource Key: ark:/67531/metadc1092371

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

About | Browse this Collection

What responsibilities do I have when using this report?

Digital Files

When

Dates and time periods associated with this report.

Creation Date

  • January 1, 1979

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

Description Last Updated

  • March 21, 2018, 1:06 p.m.

Usage Statistics

When was this report last used?

Congratulations! It looks like you are the first person to view this item online.
More Statistics

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'Anaerobic fermentation of agricultural residues: potential for improvement and implementation. Twelfth quarter progress report, 16 March 1979-15 June 1979 and Addendum describing project activities, 16 June 1979-15 October 1979'.
Thumbnail image of item number 2 in: 'Anaerobic fermentation of agricultural residues: potential for improvement and implementation. Twelfth quarter progress report, 16 March 1979-15 June 1979 and Addendum describing project activities, 16 June 1979-15 October 1979'.
Thumbnail image of item number 3 in: 'Anaerobic fermentation of agricultural residues: potential for improvement and implementation. Twelfth quarter progress report, 16 March 1979-15 June 1979 and Addendum describing project activities, 16 June 1979-15 October 1979'.
Thumbnail image of item number 4 in: 'Anaerobic fermentation of agricultural residues: potential for improvement and implementation. Twelfth quarter progress report, 16 March 1979-15 June 1979 and Addendum describing project activities, 16 June 1979-15 October 1979'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Jewell, W.J. Anaerobic fermentation of agricultural residues: potential for improvement and implementation. Twelfth quarter progress report, 16 March 1979-15 June 1979 and Addendum describing project activities, 16 June 1979-15 October 1979, report, January 1, 1979; United States. (digital.library.unt.edu/ark:/67531/metadc1092371/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.