Biogas System










Efficient Mixing Technology and Equipment

Basic principle: High efficiency mixer is installed on top of the digester, with two layers of propellers which will ensure the complete mixing and sufficient heat and mass transfer, so as to avoid digestion dead-zone and local acidification inside digester. 


  1. Installation power is less than 5W/m3 digester volume (50% energy saving compared to traditional mechanical and jet mixing)
  2. Mixer new sealing technology has good performance on wear-resistant and anti-leakage
  3. Two layers of propellers and ‘crust removing device’ prevent formation of floating layer and crust
  4. Easier maintenance of electrical control parts

CSTR Anaerobic Digestion Technology and Equipment  

Basic principle: By optimizing the technology and equipment, the ammonia nitrogen tolerance concentration can be up to 6,000 mg/L, total solid (TS) content of input material can be up to 12%, so that the efficiency and stability of digestion process are both greatly improved.


  1. TS content of raw material can be up to 12%
  2. Tank volume per unit: 100 – 1000 m3
  3. Operation time more than 8,500 hour/year
  4. Ammonia nitrogen tolerance in CSTR could reach 6,000 mg/L

CSTR : Continuous Stirred-Tank Reactor

Double Membrane Dry-Type Technology and Equipment

Basic principle: The biogas holder consists of an outer membrane, an inner membrane, a bottom membrane and the concrete basement. The inner and bottom membrane confine a space in which biogas is stored.


  1. The storage pressure is 1,200-3,500 Pa, which ensure safe operation
  2. Use special biogas membrane with PVC coating, which can resist UV radiation,H2S corrosion, CH4 penetration, folding, and aging
  3. 30%-60% investment saving compared to traditional wet gas holders
  4. Easier maintenance of electrical control parts

Biogas Bio-Desulphurization Technology and Equipment  

Basic principle: H2S is converted into sulfur or sulfurous acid by Thiobacillus under certain temperature, humidity and micro oxygen condition. 


  1. H2S removal efficiency up to 98%
  2. 70% lower operation cost than traditional chemical desulphurization
  3. No chemical agent needed, no secondary pollution
  4. Easier operation and maintenance