No Cover Image

Journal article 443 views 98 downloads

Drying dairy manure using a passive solar still: A case study

Larissa Nicholas, Ian Mabbett Orcid Logo

Energy Nexus, Volume: 10, Start page: 100183

Swansea University Authors: Larissa Nicholas, Ian Mabbett Orcid Logo

  • 62980.pdf

    PDF | Version of Record

    This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)

    Download (1.59MB)

Abstract

The pyrolysis of wet biomass such as faecal sludge and cow manure requires an extra drying step to reduce the moisture content before pyrolysis can occur. Open-air solar drying is a technique routinely used to dry faecal sludge and dairy manure. In this method water held within the biomass is lost t...

Full description

Published in: Energy Nexus
ISSN: 2772-4271
Published: Elsevier BV 2023
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa62980
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract: The pyrolysis of wet biomass such as faecal sludge and cow manure requires an extra drying step to reduce the moisture content before pyrolysis can occur. Open-air solar drying is a technique routinely used to dry faecal sludge and dairy manure. In this method water held within the biomass is lost to the atmosphere. A simple solar still was constructed in order to both dry cow manure and to capture water as part of the drying process. Measurements included solar radiation, cover temperature and internal solar still temperature and chemical analysis of the distillate. The maximum internal temperature of the solar still was recorded at 52.9 °C and the minimum recorded at 10.1 °C. The key objectives were to investigate the use of solar still technology in drying cow manure and determine the chemical properties of the distillate with a view to its re-use as irrigation water. The moisture content of the cow manure was reduced by 13%, however, the pathogen content of the resultant distillate contained 8,010 Escherichia Coli per 100 ml.
Keywords: Dewatering, Solar still, Dairy manure, Drying, Sludge, Irrigation water
College: Faculty of Science and Engineering
Funders: Bill & Melinda Gates Foundation, EPSRC
Start Page: 100183