Sewage sludge treatment by arc discharge

Sewage sludge is composed of organic materials, bacteria and mostly water. The bacteria contain digested organic materials. The object of the sewage sludge treatment is destroying the bacteria cell membrane. Using characteristics of arc discharge in water, we treated the sewage sludge. We used high voltage pulse power system to generate the arc discharge in the sewage sludge. For effective treatment, we also used a coaxial and a ring shape coaxial reactor. An examination method of the sewage sludge treatment is to compare SCOD (soluble chemical oxygen demand) before and after treatment.