Thermal Hydrolysis at Davyhulme WWTW – One Year On
Edgington, R. – United Utilities
(free)
Davyhulme’s sludge treatment facility, using CAMBI thermal hydrolysis, is designed to treat an average 91000tds per annum, arising from 50% of the population served by United Utilities. All sludge from Davyhulme (Manchester) and seven other large works is treated. Raw sludge is imported as 25%DS cake from these outlying works. The
facility was designed to increase United Utilities’ renewable energy generation and has 12MW of installed generating capacity. It was also designed to ensure flexibility in sludge treatment and recycling throughout the North West region. The digested sludge is either dewatered to a cake for recycling to land or pumped, as liquid, to
Mersey Valley Processing Centre for incineration. The plant was commissioned during 2013 with performance tests being undertaken during this period. Since then, the plant has been optimised to reduce chemical costs, maximise biogas usage and energy generation. This has been achieved by the operational staff using key performance indicators. The plant has also produced an enhanced quality sludge product that has been successfully marketed and used by farmers, whom had not previously used sludge on their agricultural land.
The Biosolids conference attracts the most authoritative global experts in the area of biosolids and organic resource handling, treatment and recycling. The programme covers both the latest innovations and updates of existing technologies. Presentations from respected industry experts and newcomers follow the development of technologies and legislation from inception to full-scale installations.
The conference regularly gathers over 200 delegates from all over Europe, many of them return every year both for the technical presentations and fantastic networking opportunities.
Regular conference themes include:
• Thickening and Dewatering
• Modelling Sludge Handling and Utilisation
• Commissioning and Operating Experiences with Thermal Hydrolysis
• Tackling Potential Odour Problems
• Operating Experiences and Potential Problems in Digester Operation
• Ensuring Optimum Energy Recovery from Biogas
• Liquor Treatment and P Removal
• Alternative Products from Sludge
• Enhancing the Value of Biosolids and Digestate
• Pathogens and Pollutants In Digestate
• Sharing Experiences
