Continental Focus, International Reach

Cambi and Sasol Innovate to Move Up the Waste Hierarchy Through Thermal Hydrolysis

Wednesday, November 23, 2022

Cambi has signed a large contract with Wood, a global leader in consulting and engineering, to supply Sasol with two full-scale thermal hydrolysis process (THP) systems for treating industrial biological sludge at Sasol’s Secunda Operations (SO) in South Africa.

Sasol and Cambi commenced a commercial trial at SO in 2021 using a small-scale THP unit. Extensive laboratory tests and integration checks demonstrated the feasibility of refunneling industrial biological sludge into Sasol’s coal-to-liquids (CTL) gasification process and identified the optimal process parameters for full-scale application.

“We are excited about this project, as it will enable us to improve our waste management by moving up the waste hierarchy while improving ambient air quality. This will enable Sasol to move away from incineration and, at the same time, to derive syngas from biosludge. We recognize the link between our activities and the need to act responsibly by holistically managing the impacts of our operations through world-class innovation,” said Simon Baloyi, Executive Vice President for Energy Operations and Technology at Sasol.


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