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Kubota Johkasou Model HS-P. Household Wastewater Treatment System 5・7・10 Person Tank. “Johkasou” in Japan. 8,600,000 units of “Johkasou” placed in Japan Approx.160,000 units of “Johkasou” were installed in Japan in 2008 for domestic use.
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Kubota JohkasouModel HS-PKubota JohkasouModel HS-P Household Wastewater Treatment System 5・7・10 Person Tank
“Johkasou” in Japan • 8,600,000 units of “Johkasou” placed in Japan • Approx.160,000 units of “Johkasou” were installed in Japan in 2008 for domestic use. • In 1969, we started development of “Johkasou” That can treat only night soil(flush toilet water) • In 1986, we launched new “Johkasou” that can treat both night soil and gray water. • Since then, a new high-performance product development continues. • Now we manufacture approx. 20,000 “Johkasou” in a year.
Perspective cross section Air-lift pump Blower Influent Effluent Anaerobic filter tank First chamber Disinfection tank Anaerobic filter tank Second chamber Sedimentation tank Suspended solids are settled and supernatant flows to overflow weir Remove solids in the wastewater and anaerobic microbe attached to the filer decompose organic matter.Sludge is stored in these tanks Contact aeration tank Aerobic microbe grows on the surface of contact media in the condition of aeration by blower
Flow sheet Blower Anaerobic filter tank Anaerobic filter tank Contact aeration tank Sedimentation tank Disinfection tank BOD20mg/L BOD200mg/L 200L/P・D Kitchen Laundry Sink Bath Toilet Regular water circulation Sloughed sludge transfer
TRANSPARENCY(Tr) CHECK Treated Water Tr>20cm ≒BOD<20mg/L
Characteristics • Environment Ministry’s government subsidy compliance type in Japan • Certified by the Ministry of Construction (Notification No.1292,No.1-2 in Japan) • Adopting Anaerobic Filter Contact Aeration Process (Anaerobic-aerobic treatment process, Denitrification process with nitrified mixed liquor recycle), Effluent quality is stable. • Adopting six valves and air-lift pump with adjustment device, Maintenance is easy. • FRP (Fiberglass Reinforced Plastic) Body
KUBOTA CorporationJohkasou Division Shiga factory 2-1 Takamatsu, Konan-shi, Shiga-ken, JapanHead Office 1-2-47 Shikitsuhigashi, Naniwa-ku, Osaka, JapanURLhttp://jokaso.kubota.co.jp/