Effect of Thermal Hydrolysis on Municipal Solid Waste andSBR Sludge

Anand, A., Soni, O., Balasundaram, G., Gahlot, Kazmi, A.A., Tyagi, V.K., Kleiven, H., Sahu, A.K.

ECO STP 2025, 7th IWA International Conference on Ecotechnologies for Wastewater Treatment

Introduction

By 2030, the United Nations predicts the world shall have 43 mega cities, each with a population greater than 10 million. About 90% of this shift will take place in Asia (India, China) and Africa, pressing municipal wastewater utilities to upgrade their infrastructure, either by building new or retrofitting their systems and plants. In addition, there is a strong drive for these cities to adhere to circular economy model while meeting UN sustainable goals. Achieving climate targets such as netzero emissions and achieve asset optimisation, due to urbanisation trends needs to be accounted for. When it comes to sludge management in wastewater treatment, one such technology that has gained prominence is the thermal hydrolysis process (THP) prior to anaerobic digestion (AD). This is due to its value propositions such as asset optimisation, energy recovery, circularity, lower carbon footprint, high quality biosolids and have been adapted by leading utilities of the world.

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