Kä ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k. Biogas pools ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ

Në kë de "multi-stage self-flow, step-by-step degradation" principle, ka anaerobic fermentation class I - class II partial digestive filtration yam looi. A tɔŋ anaerobic fermentation, partial digestive filtration, wastewater return ku fillers.