Nanoen - The phenomenon of difficult settling of activated sludge and the return of floating sludge are two common issues in wastewater treatment systems, directly impacting the efficiency of wastewater treatment and resulting in the effluent quality not meeting technical standards.

  Nanoen - Building biogas digesters helps livestock farmers escape the plight of living amidst foul odors and potential health hazards from animal waste. Biogas serves as a "life-saving" solution for livestock farmers...