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This publication discusses the background and history of digesters, the biology of digestion, raw materials, the gas, digesters, using gas, using sludge, and building a sump digester, and building an inner tube digester.

Maelezo ya Uchapishaji

  • Mchapishaji: Fry
  • Dewey Decimal: 631.8
  • Maktaba ya ECHO: 631.8 FRY