Date: Thursday, 27 June 2024
Time: 09:00 - 10:00 CEST
Session code 5DV.2
Hydrothermal processing 2
Processing of Hydrothermal Liquefaction Biochar from Biogas Digestate for Use as Fertilizer
Short Introductive summary
Biogas plants produce, along with biogas, digestate, which is an excellent plant fertilizer, rich in both organic matter and in macro- and micronutrients. However, biogas digestate also contains organic molecules of emerging concern that are currently disposed of. Biogas digestate can be used as feed for the hydrothermal liquefaction (HTL) which will be converted to biocrude and biochar (by-product). HTL process is unique as the nutrients in the biogas digestate are concentrated in the biochar (around 90-95%) during the HTL process with a high recovery rate. These minerals and nutrients can subsequently be distributed back to the farmers as a fertilizer thereby contributing to recycling of resources. Therefore, this study aims at the extraction and characterization of phosphorus from the HTL biochar as well as evaluating its bioavailability to the plants. Additionally, this study also investigates how best to recycle the nutrient rich HTL biochar into conventional marketable fertilizers.
Presenter
Kamaldeep SHARMA
Aalborg University, Energy Dpt.
Presenter's biography
I am currently an Assistant Professor in the department of Energy and Technology, Aalborg University, Denmark and working to production and upgrade HTL biocrude oils from biomass. I finished Ph.D. in 2016 from GNDU, India and worked in Chonbuk National University, South Korea.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
T.H. Pedersen, Aalborg University, DENMARK
Session reference: 5DV.2.16