In India bath rooms in trains are being fitted with biotoilets.I desire to know the working principle of the biotoilet,how the human waste is treated and disposed off.Has it been used for manurial purpose in horticulture etc.?
Biotoilets how they work:
1. Composting toilets use nature's decomposition process to reduce waste by 90% and convert it into nutrient rich compost 2. They do not require water hook ups either which is great for our alreadystressed water supply. In short, composting toilets are a way to allow waste to decompose safely and without odors. 3. Composting toilets use oxygen loving bacteria that is naturally present in human waste to do all the work. 4. Bugs, worms, and other critters have absolutely NO role in BioLet's composting process. 5. You just use a BioLet like you would a regular toilet, toilet tissue and all. The main difference is you just toss in compost mix after each fecal use instead of flushing. The air flow inside the toilet pulls all odors up the 'chimney' and out of your home. 6. Composting reduces waste volume by 90%; the majority of the material inside the toilet is mulch and not waste. You do not even have to see it with the way BioLet is designed. Yes, you do have to empty the lower compost tray periodically, depending on how many people are using the toilet, but it is only compost, soil. There is no waste mixed in the tray.
How biotoilets work in Indian rail, please see follwoing link:
https://www.quora.com/How-do-the-bio-toilets-in-the-Indian-Railways-or-others-work
Biotoilets how they work:
1. Composting toilets use nature's decomposition process to reduce waste by 90% and convert it into nutrient rich compost 2. They do not require water hook ups either which is great for our alreadystressed water supply. In short, composting toilets are a way to allow waste to decompose safely and without odors. 3. Composting toilets use oxygen loving bacteria that is naturally present in human waste to do all the work. 4. Bugs, worms, and other critters have absolutely NO role in BioLet's composting process. 5. You just use a BioLet like you would a regular toilet, toilet tissue and all. The main difference is you just toss in compost mix after each fecal use instead of flushing. The air flow inside the toilet pulls all odors up the 'chimney' and out of your home. 6. Composting reduces waste volume by 90%; the majority of the material inside the toilet is mulch and not waste. You do not even have to see it with the way BioLet is designed. Yes, you do have to empty the lower compost tray periodically, depending on how many people are using the toilet, but it is only compost, soil. There is no waste mixed in the tray.
How biotoilets work in Indian rail, please see follwoing link:
https://www.quora.com/How-do-the-bio-toilets-in-the-Indian-Railways-or-others-work
Thank you Dr.Malhotra for the information and attached link.The principle explained by many participants(in the attached discussion) involves the use of anaerobic culture and its self regenerating capacity over time.I am not clear how the volume is reduced by 90 per cent, how long it is accumulated and how the waste is disposed off?.Also, at what frequency the toilets are cleaned/recharged and previous waste disposed off.Are there any practical studies conducted on the aspects mentioned(all the participants only mentioned the theory or original work)?
Dear colleagues, I find some information on biotoilets working in Cleanindiajournal.The following is the link
http://www.cleanindiajournal.com/bio-toilet-issues
I understand that only the slurry or liquid digested material is disposed off,not the solid residue or compost.I believe that the slurry has manurial value at least in ornamental gardening. As approximately more than 20 million ( >2 crore) people are travelling everyday on indian trains(excluding urban short distance travellers), the slurry generated can be substantial if properly collected and used.Also, the methane gas generated in the anaerobic digestion probably escapes into or let out into environment .One can quantify this also to see its impact or use.
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