Forschungsbericht 2013
Kostengünstige Pflanzennährstoff- und organische Kohlenstoffrückgewinnung aus Urin in der Terra Preta Sanitärtechnik
The concept, ecological sanitation, offers a better alternative to meet sanitation requirements and to recover plant nutrients & organic matter from human waste at the same time. So far, as results of researches worldwide, various high and low-tech/cost treatment and recovery pathways have been suggested to render human excreta (i.e. faeces and urine) innocuous and recover plant nutrients and organic matter for re-use in agriculture. However, those pathways, as practiced today, are not yet at the same time effective, rapid, economical, and easily manageable. Therefore, there is a need for new pathways and further refining research works on existing methods for specific socio-environmental conditions. Terra Preta Sanitation (TPS) is one such new pathway in ecological sanitation. It is a concept re-discovered from ancient soil conservation practices in the Amazon basin and aims at converting human waste into a safe, nutrients & organic matter rich soil conditioner . This research work aims at investigating low cost recovery of plant nutrients and organic matter from human urine as a sub pathway in Terra Preta Sanitation where urine is pre-treated with lactic acid fermentation and used to grow Comfrey (Symphytum officinale L.) followed by activated composting. |
