The rate of vermi-compost accumulation within 'Tiger Toilets' in India

Tiger Toilets use a worm-based ecosystem to degrade human waste and have recently been demonstrated as a cost-effective innovation in on-site sanitation. The benefits over traditional pit latrines include slower fill rate, fewer odours, and safer emptying. However, a question remains around how to m...

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Détails bibliographiques
Publié dans:Environmental technology. - 1993. - 43(2022), 3 vom: 15. Jan., Seite 376-385
Auteur principal: Hylton, Erin (Auteur)
Autres auteurs: Noad, Liam, Templeton, Michael R, Sule, May N
Format: Article en ligne
Langue:English
Publié: 2022
Accès à la collection:Environmental technology
Sujets:Journal Article On-site sanitation sustainability tiger worms vermi-compost vermifiltration
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520 |a Tiger Toilets use a worm-based ecosystem to degrade human waste and have recently been demonstrated as a cost-effective innovation in on-site sanitation. The benefits over traditional pit latrines include slower fill rate, fewer odours, and safer emptying. However, a question remains around how to measure the rate of accumulation of vermi-compost and predict the fill rate into the future. In this study, fifteen Tiger Toilets of varying installation ages in the villages of Jejuri, Bhalgudi and Walhe/Adachiwadi, in Maharashtra province, India were investigated to determine the rate of filling. A laser measure was used to define cross-sections of the depth to vermi-compost layers within the Tiger Toilet digesters. Bench-scale column tests were used to estimate liquid infiltration rates from the digesters into the surrounding soils. Changes over time in the interior digester conditions were photographed and a video camera was installed in selected digesters to confirm and observe the worm activity in situ under red light. Calculated fill rates of the Tiger Toilets were significantly lower compared to estimated fill rates of traditional pit latrines of a similar size and usage rate. The infiltration of the liquid fraction of the waste into the surrounding soil was observed to be a key factor in filling 
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650 4 |a On-site sanitation 
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650 4 |a vermi-compost 
650 4 |a vermifiltration 
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700 1 |a Templeton, Michael R  |e verfasserin  |4 aut 
700 1 |a Sule, May N  |e verfasserin  |4 aut 
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