1. Significantly reduces excess sludge disposal costs

• Because the sludge generation rate is low compared with the aerobic treatment method, N-UASB can reduce excess sludge disposal costs.

2. Reduces electrical power consumption

• Unlike the activated sludge method which uses aerobic bacteria, the N-UASB method doesn’t require oxygen and aeration power. Therefore, it needs less power consumption and makes it possible to operate in low costs.

3. Treatment of high concentration wastewater

• It was impossible to directly reduce high concentration CODcr by more than 90% from 40,000 mg / L in the short time before, but N-UASB makes it possible.

4. Low-cost and space-saving

• Super high loading treatment - CODcr volume loading 30 kg / m³・day-, can be made, therefore it realizes the space-saving of the system. Moreover, it is a low-cost treatment, so you can save on expenses of operation.

5. Recycling of methane gas

• Because 70% of organic matter changes to methane gas by collecting gas, it can be used as fuel for boilers, etc.