2. latest design for family size sewage treatment

3. composed of anaerobic digester, anaerobic digester with filter, water pump, sludge pump and the appliance.

4. easy to maintain and long life span.

5. anaerobic fermentation, produce biogas, fertilizer, reclaimed water

6. biogas can be used for generating electricity, cooking, heating, lighting and so on.

Feature and advantage:

• High reliable
• easy and quick to be built
• Solid organic material (straw and grass etc.) can be used
• Easy to maintain  

• Durable 

• Excellent safety feature 

• Low cost 
• save space ( can be buried under ground)