![An inter-loop approach for hydrothermal carbonization of sewage sludge to produce hydrochars and their use as an adsorbent for iron removal from spent sulfuric acid | SpringerLink An inter-loop approach for hydrothermal carbonization of sewage sludge to produce hydrochars and their use as an adsorbent for iron removal from spent sulfuric acid | SpringerLink](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs10098-021-02269-8/MediaObjects/10098_2021_2269_Figa_HTML.png)
An inter-loop approach for hydrothermal carbonization of sewage sludge to produce hydrochars and their use as an adsorbent for iron removal from spent sulfuric acid | SpringerLink
![Sulphuric acid off-take opportunities including establishment of complete value chain - Global Africa Network Sulphuric acid off-take opportunities including establishment of complete value chain - Global Africa Network](https://www.globalafricanetwork.com/wp-content/uploads/2020/07/Sulphuric-acid-consumption-SA-1.jpg)
Sulphuric acid off-take opportunities including establishment of complete value chain - Global Africa Network
![A bottle of two molar (2M) sulphuric acid or sulfuric acid (H2SO4) as used in a UK secondary school, London, UK Stock Photo - Alamy A bottle of two molar (2M) sulphuric acid or sulfuric acid (H2SO4) as used in a UK secondary school, London, UK Stock Photo - Alamy](https://c8.alamy.com/comp/MB0WDH/a-bottle-of-two-molar-2m-sulphuric-acid-or-sulfuric-acid-h2so4-as-used-in-a-uk-secondary-school-london-uk-MB0WDH.jpg)