Abstract
The present study evaluated how the initial sewage sludge properties affect the characteristics and composition of sewage sludge-based biochars. Sewage sludges of varying organic matter content were pyrolyzed at temperatures of 500, 600 and 700°C. The obtained materials were characterized in terms of their composition and physico-chemical as well as their surface and thermal properties. With increasing treatment temperature, the pH, ash content and macro- and micronutrient content increased. The biochar aromaticity also increased. On the other hand, the pyrolysis yield, percentages of H, N and O, molar ratios, polarity of biochars, and crystallite size decreased. The direction of the changes in the content of elemental carbon (C) and in surface area was dependent on the type of sewage sludge. It was found that for some properties of biochars produced could be determined on the basis of an analysis of the properties of the initial sewage sludge.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
