Sustainable hydrocarbon remediation using solar power at Redheugh gasworks, UK

A former UK gasworks site has been cleaned up sustainably using solar power. The small but multi-award-winning project involved designing and deploying an in situ remediation system driven entirely by photovoltaic energy. Over 22 months it recovered 6100 l of hazardous coal tar and creosote from a 9.5 m deep infilled former gas holder tank in Gateshead, north-east England. This paper describes how options appraisal, stakeholder mapping and sustainability assessment led to a genuinely low-emissions, cost-effective and durable treatment solution with the highest health and safety standards.