Advanced onsite wastewater treatment system KUBOTA JOHKASOU SYSTEM

Ｊｏｈｋａｓｏｕ Ｓｙｓｔｅｍ (Advanced onsite wastewater treatment system) KUBOTA JOHKASOU SYSTEM CO. , LTD

Risk of Septic Tank, Pit Latrine If using Johkasou, wastewater shall be treated until same quality as centralized sewage treatment system. Therefore the treated water shall not contaminate underground water. Wastewater treatment facility If used these treatment system, underground water will be contaminated by wastewater which was penetrated. 2

What is 「Johkasou」! 1) ｢Johkasou｣ is not just septic tank but small wastewater treatment package tank. 2) ｢Johkasou｣ can treat various wastewater. (kitchen､ toilet､ bath､ laundry､ etc. ) 3) There are many functions in one tank. (anaerobic, filtration, disinfection) 4) ｢Johkasou｣ can treat wastewater as same quality of sewerage systems. （BOD removal ratio≧ 90%, Effluent BOD≦ 20 mg/L） 3

Johkasou system -T) (K-HC Kitchen BOD 200 mg/L Toilet Bath Laundry Airlift Pump BOD <20 mg/L aerobic anaerobic filtration disinfection 4

Johkasou system Kitchen BOD 200 mg/L Toilet Bath Laundry (K-HC-R) Airlift Pump BOD <20 mg/L 5

Johkasou system(KJ) BOD 200 mg/L Kitchen Toilet Dinitrification Bath 2 NO- + 5(H 2) → N 2 +2 OH- + 4 H 2 O Laundry Airlift Pump BOD <20 mg/L Nitrification NH 4 -N → NO 2 -N → NO 3 -N 6

Johkasou system( ) Kitchen Toilet Bath Laundry BOD 200 mg/L BOD <20 mg/L 7

Features of the KUBOTA JOHKASOU 1) Installation period 100 m 3／day Made by FRP Temporary Construction Digging work 42 days Base concrete work Made by RC Set up work Piping work 120 days Installing Equipment It is possible to shorten the construction period compared with RC. ⇒Johkasou made of FRP is about 1/3 construction term compared with the Johkasou made by RC 8

Features of the KUBOTA JOHKASOU 2) High Quality Made by RC Made by FRP Johkasou made by FRP is factory products and transport to the construction site. Therefore, we can supply the standardized high quality products for you. 9

Features of the KUBOTA JOHKASOU 3) Automatic Operation by Control Panel. Possible to operate by periodical patrol (It is not necessary to arrange resident operator. ) 10

Proposal from kubota Establishment of construction, maintenance and cleaning system. And create new employment for the preceding. Technologies demanded for Johkasou ■Product ■Maintenance Desludging Operation & Maintenance Johkasou inspector ■Installation Johkasou installation worker Johkasou operator Johkasou desludging technician ■Instructions and Directions for use End user 11

Johkasou installation

Thank you for your kind attention ! Please visit our website at: http: //www. kubota. co. jp http: //www. johkaso. kubota. co. jp/