IsaanAussie Posted September 6, 2008 Share Posted September 6, 2008 Dear TV Farmers, I would like to ask if anyone has either installed a biodigester to handle animal manures, or knows of a working installation. Most people use a pond system that I have seen but I want to make use of the processed effluent for a variety of uses. Any practical experience would be more than welcome. Isaanaussie Link to comment Share on other sites More sharing options...
Maizefarmer Posted September 9, 2008 Share Posted September 9, 2008 Not horse manure but cow manure - yes, I have one and use it to produce produce hot water and run generators. The processed efluent (slurry) is sprayed onto forage grass fields. Link to comment Share on other sites More sharing options...
IsaanAussie Posted September 9, 2008 Author Share Posted September 9, 2008 Not horse manure but cow manure - yes, I have one and use it to produce produce hot water and run generators.The processed efluent (slurry) is sprayed onto forage grass fields. I think it should be A-Maizing Farmer. Why did I think you would be amongst the candidates? What type of digester and volumes are you running MF? I am planning a dome system, with sand filteration/seperation of the effluent. Influent will be from the pig sty. I am interested in your gas storage and usage for both electricty and hot water, any details would help. Isaanaussie Link to comment Share on other sites More sharing options...
Maizefarmer Posted September 12, 2008 Share Posted September 12, 2008 I'm in Belgium, Holland and the UK for the next week or so - will chase this up with details for you when I get back on the 23rd (Sept). Link to comment Share on other sites More sharing options...
IsaanAussie Posted September 26, 2008 Author Share Posted September 26, 2008 I'm in Belgium, Holland and the UK for the next week or so - will chase this up with details for you when I get back on the 23rd (Sept). Just afriendly nudge in the ribs. Hope it doesn't effect the bio digestion? ... Appreciate any guidance Link to comment Share on other sites More sharing options...
thaipak Posted September 27, 2008 Share Posted September 27, 2008 Dear TV Farmers,I would like to ask if anyone has either installed a biodigester to handle animal manures, or knows of a working installation. Most people use a pond system that I have seen but I want to make use of the processed effluent for a variety of uses. Any practical experience would be more than welcome. Isaanaussie Hi Isaan Aussie See the attachment.If it is helpful to you let me know. I took it from 22nd September's some Thai newspaper. best regards ALI Link to comment Share on other sites More sharing options...
IsaanAussie Posted September 27, 2008 Author Share Posted September 27, 2008 Hi Isaan Aussie See the attachment.If it is helpful to you let me know. I took it from 22nd September's some Thai newspaper. best regards ALI Thanks for the input Ali, These plastic bag digesters are not what I am looking for. The thought of Thai supervision and a plastic bag full of pig sh-t and explosive methane gas, isn't something I care to fall asleep thinking about. For me concrete dome underground. Isaanaussie Link to comment Share on other sites More sharing options...
Maizefarmer Posted September 27, 2008 Share Posted September 27, 2008 I'm in Belgium, Holland and the UK for the next week or so - will chase this up with details for you when I get back on the 23rd (Sept). Just afriendly nudge in the ribs. Hope it doesn't effect the bio digestion? ... Appreciate any guidance Still in Europe - but just to give you a basic brief on my setup: first step is all the cow shit gets pushed into a pit, then augered into a slurry pit - which is sealed. The methane that comes of the manure is vacumed into a what is effective a large bag, and then with a small compressor, slowly "pushed" into an old industrial gas storage tank, which s sunk into a pit behind the house. It really is that simple. How much gas is produced? I don't know exactly, what I can say though is that it is enough to produce all the single phase I need to run the house and the diary equipment, and along with a diesel gennie, is enough to run the workshop - which is 3phase. Thats the short of it. The big problem is the condensate that colletcs in the gas tank under pressure - its very acidic, and it slowly works its way into the piping. I don;t have all the fancy filters and other commericial equipment the professionals install. When I set it up I done so half heartedly - other than for the storage tank which represented a large part of the investment, as i knew i would have to store under pressure for it to be a viable usable product. Stil, its lasted very well and I am going to have to think about sorting out all the small problems sometime over the next few years - like proper piping and valves, condensate removal ect... Is it worth producing? In my case yes - because I have between 150 and 300 cows to take it form on a daily basis, each one producing something like 1cubic m per day of methane gas (at 1bar). You need roughly 1cubic m to produce 500watts - so I am get roughly 100Kw's per day of electricity producing fuel. is it worth the effort using household human waste from say a 4-5 member family? - I doubt it. Link to comment Share on other sites More sharing options...
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