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  • ...Alterna is a shallow alternating double pit system, collecting and compos ting excreta from a dry toilet. Two shallow pits are dug next to each other (0.5
    3 KB (476 words) - 20:42, 22 December 2008
  • * Women in Europe for a Common Future (2006). Urine diver- ting Toilets: Principles, Operation and Construction. Disponible en: [http://www
    8 KB (1,308 words) - 03:43, 9 June 2015