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Sustainable valorization of oil and gas industry biosolids: optimal reuse pathways.
Number: 61
Author(s) : AL-SHARSHANI A.
Summary
This study investigates the potential of converting waste biosolids from industrial sources, focusing on economic viability, environmental impact, and heavy metal removal efficiency. Traditional management methods like landfilling and incineration are increasingly impractical due to land constraints and environmental concerns, prompting a shift towards thermal and biological conversion technologies including anaerobic digestion, pyrolysis, gasification, and hydrothermal liquefaction. Incorporating a pretreatment for heavy metal removal is essential as industrial wastes are highly subjected to metal contamination. The study screens a range of metal removal processes including precipitation, adsorption, ion exchange, and microwave induction. Although a techno-economic analysis can help give a perspective on the economic viability and environmental impact of each technology, it does not account for technical limitations and variations of the treated waste stream. A MILP optimization model is developed to fill in this gap and assist in waste stream allocation to the most appropriate technology, taking into account both technology capacities and feed characteristics. The study looked into the optimal treatment route at different feed moisture contents and varying flow rates. The results demonstrate that the model distributes the feed across the different technologies on the basis of maximizing the capacity of the optimal technology while ensuring the moisture and heavy metal content limits are satisfied. Thus, it maximizes profitability and ensures heavy metal removal efficiency. By optimizing industrial biosolids treatment pathways, the study promotes sustainable resource recovery aligning with circular economy principles in waste management. The developed model facilitates informed decision-making in biosolids management and industrial waste treatment practices.
Available documents
Details
- Original title: Sustainable valorization of oil and gas industry biosolids: optimal reuse pathways.
- Record ID : 30034674
- Languages: English
- Subject: Technology
- Source: 21st International Conference & Exhibition on Liquefied Natural Gas (LNG2026)
- Publication date: 2026/02/05
Links
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Indexing
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Themes:
Cryology, gas processing: general information;
LNG and LPG - Keywords: Sustainability; Oil; Gas; Metal; Technology; Digestive system; Biomethane; LNG
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