Dear Mr. Punya Regmi,
Namaskar from Upendra Gautam and myself!
In connection to the unanswered questions, we would like to request you to circulate the following information about a very useful Chinese reference about R & D carried out on the disposal of human and animal excreta.
Biogas Technology and Utilization 1979 Chengdu Seminar. Sichuan Provincial Office of Biogas Development. It contains a chapter on "Disposal of Human and Animal Excreta by Biogas Fermentation and the Improvement of Rural Sanitation" (contact address: Sichuan Institute of Anti-parasitic Diseases).
Thanks and best regards
Amrit & Upendra