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Providing
Innovative Solutions
for Our Clients
since 1965
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Projects -
Zencan ATAD Facility
Sendai,
Japan |
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Dayton & Knight Ltd. provided the pre-design
and detailed design for Aqua Plant Construction Ltd. to assist in a
design-build venture for Hitachi Corporation's Zencan ATAD facility, in
Sendai, Japan.
This new facility, the first ATAD in
Japan, is designed to treat 100 m3/d of 5% organic sludge
feed from municipal and industrial sources from the City of Sendai.
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The design included pre-stage mixing, thickening,
heat exchangers, 3 ATAD reactors, Turburator aerator-mixers, PLC controls, dewatering and
two bio-filter towers for odour control.
The land requirements for the facility were
much less than for alternative conventional digestion processes and met the
objectives of a limited site. Preliminary results indicate a COD
reduction of 95% and a volatile solids reduction of 60%. The plant is
achieving thermophilic temperatures of 60oC.
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