Anaerobic co-digestion of food waste and FOG with sewage sludge – realising its potential in Ireland |
| |
Authors: | Olumide Wesley Awe Yaqian Zhao Ange Nzihou Doan Pham Minh Nathalie Lyczko |
| |
Affiliation: | 1. School of Civil Engineering, Dooge Centre for Water Resources Research, University College Dublin, Dublin, Ireland;2. Mines Albi, CNRS UMR 5302, Centre RAPSODEE, Université de Toulouse, Albi, France |
| |
Abstract: | The severe environmental pollution in many countries is caused by indiscriminate discharge of large quantities of food waste (FW), fat oil and grease (FOG) and sewage sludge (SS) to the environment. There are many possible treatment routes, but anaerobic digestion (AD) is now well accepted for treating several kinds of organic wastes. But AD of FW alone presents some operational challenges because of substrates and variability. Anaerobic co-digestion of two or more substrates is better than single substrate digestion. This can use a plant’s unused capacity, in line with the trend to renewable energy. Co-digestion technology, although well established in many European countries, is still in its infancy in Ireland. There are problems with different regulatory arrangements. They should be resolved. The paper reviews anaerobic co-digestion technology is reviewed, with special focus on possible application in Ireland. |
| |
Keywords: | FW sludge co-digestion FOG biogas biodegradability |
|
|