{"id":8278,"date":"2018-10-17T20:52:41","date_gmt":"2018-10-17T19:52:41","guid":{"rendered":"http:\/\/www.theoillamp.co.uk\/?p=8278"},"modified":"2018-10-17T20:52:41","modified_gmt":"2018-10-17T19:52:41","slug":"coffee-power","status":"publish","type":"post","link":"https:\/\/www.theoillamp.co.uk\/?p=8278","title":{"rendered":"Coffee power"},"content":{"rendered":"<p><a href=\"https:\/\/www.theoillamp.co.uk\/wp-content\/uploads\/2015\/03\/bug-on-mfc.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5422 size-medium\" src=\"https:\/\/www.theoillamp.co.uk\/wp-content\/uploads\/2015\/03\/bug-on-mfc-300x245.jpg\" alt=\"bug on mfc\" width=\"300\" height=\"245\" srcset=\"https:\/\/www.theoillamp.co.uk\/wp-content\/uploads\/2015\/03\/bug-on-mfc-300x245.jpg 300w, https:\/\/www.theoillamp.co.uk\/wp-content\/uploads\/2015\/03\/bug-on-mfc.jpg 352w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Soon coffee producers in Columbia could be producing coffee power thanks to funding from the UK government.\u00a0 The idea is to produce electricity from coffee waste using bacteria in microbial fuel cells.\u00a0 This is the area I did my doctorate in- that is microbial fuel cells (not coffee).\u00a0\u00a0 I&#8217;ve blogged on it in the past and a more technical explanation is <a href=\" https:\/\/www.theoillamp.co.uk\/?p=5408\" target=\"_blank\">here<\/a>.\u00a0 Some types of bacteria have the ability to transfer electrons to external compounds therefore producing a current.\u00a0 Coffee waste will either contain such bacteria or will pick them up from the environment that the coffee waste is put in.\u00a0 There are sufficient energy source molecules present in the coffee waste to drive the process.<\/p>\n<p>The advantage is that coffee waste will constitute a disposal problem.\u00a0 You cannot just dump it in a river.\u00a0 Bacteria will break it down and use all the oxygen\u00a0suffocating the fish and other river life.\u00a0 Microbial fuel cells are also very very efficient.\u00a0 Almost 100% of the &#8220;fuels&#8221; potential energy is transferred to electricity.\u00a0 In a conventional fuel cell its about 50%. \u00a0 The big problem with microbial fuel cells is that they produce physically very small amounts of power.\u00a0 This make them a <a href=\"http:\/\/www.theguardian.com\/environment\/2015\/mar\/05\/university-installs-prototype-pee-power-toilet\" target=\"_blank\">niche energy source<\/a>.\u00a0 They are typically suited to recovering some electricity from waste as part of a process.\u00a0 Incidentally the university of Surrey who did the research have come up with really cheap kit to carry out the whole coffee power process in costing a few pounds.<\/p>\n<p>Neil<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Soon coffee producers in Columbia could be producing coffee power thanks to funding from the UK government.\u00a0 The idea is to produce electricity from coffee waste using bacteria in microbial fuel cells.\u00a0 This is the area I did my doctorate &hellip; <a href=\"https:\/\/www.theoillamp.co.uk\/?p=8278\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[247,4,1],"tags":[102,61],"class_list":["post-8278","post","type-post","status-publish","format-standard","hentry","category-microbial-fuel-cells","category-renewables","category-uncategorized","tag-microbial-fuel-cells","tag-renewable-energy"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - 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