Supporting a comfortable water environment

Our technologies and services are utilized in water purification facilities that deliver stable supply of safe, delicious water and sewage treatment facilities that create a comfortable water environment by treating sewage. In recent years, we have also helped protect the global environment through our overseas business activities.

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Recycling-based society for the water environment

水環境の循環型社会 水環境の循環型社会
Solar power
generation 太陽光発電 太陽光発電
Power
generation
from
waste
heat 排熱発電 排熱発電
Water
purification
plant 浄水場 浄水場
Sewage
treatment
plant 下水処理場 下水処理場

Supplying clean energy with solar power

Lessening environmental impact through proper waste treatment
Recovering energy through power generation from waste heat

Safe and reliable water supply
Recycling by-product sludge

Contributing to a comfortable water environment and to public health
Producing renewable energy from sewage sludge to return to society

Water purification plant flow

In order to continue to provide secure, safe, stable, tasty and value-added water

浄水処理設備

Water treatment facility

We propose the optimum water purification facilities tailored to the scale of water purification plant and the required water quality.

浄水場フロー 浄水場フロー
排水処理設備

Drainage treatment facility

Drainage sludge is produced as a byproduct of water purification process.
We propose the most suitable treatment and the most beneficial utilization of sludge.

Receiving
well
Sedimentation
tank
Purified
water
reservoir
Thickening
tank
Dewatering
facility
Drying
equipment

Receiving well

着水井

Sedimentation
tank

沈殿池

Purified water
reservoir

浄水池

Thickening
tank

濃縮槽

Dewatering
facility

脱水設備

Drying facility

乾燥設備

Sewage treatment plant flow

Sophisticated technologies to protect the environment and support a comfortable water cycle for society.

水処理設備

Wastewater treatment facility

We propose energy-saving and high-efficiency products for pretreatment, sedimentation, and aeration tanks.

下水処理場フロー 下水処理場フロー
汚泥処理設備

Sludge treatment facility

“Sewage sludge” generated in the process of sewage treatment. We satisfy the need for efficient treatment of sewage sludge as well as the creation and conservation of energy.

Primary
sedimentation
tank
Aeration tanks
Final
sedimentation
tank
Sludge
thickening
facility
Sludge digestion
facility
Digestion
gas
storage
electric power
generation
facility
Sludge
dewatering
facility
Sludge drying
facility
Sludge
incineration
/melting
facility
Sludge-to-fuel
/Sludge-to-fertilizer facility

Primary
sedimentation
tank

最初沈殿池

Aeration tanks

反応タンク

Final
sedimentation
tank

最終沈殿池

Sludge
thickening
facility

汚泥濃縮設備

Sludge digestion facility

汚泥消化設備
汚泥消化設備

Digestion gas
storage

消化ガス貯留

Electric power
generation
facility

発電設備

Sludge dewatering facility

汚泥脱水設備 汚泥脱水設備

Sludge drying
facility

汚泥乾燥設備

Sludge-to-fuel/
Sludge-to-fertilizer
facility

汚泥焼却設備・溶融設備

Sludge-to-fuel/
Sludge-to-fertilizer
facility

汚泥燃料化・肥料化設備
汚泥燃料化・肥料化設備

Tsukishima Kikai Products Playing Key Roles in the Water Environment

PRODUCTS

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Water treatment facility
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Water treatment facility
  • Submerged clarifier (COMPACT BULL)
  • UV Disinfection systems (SENTINEL®)
  • Dry super-powdered activated carbon
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Drainage treatment facility
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Drainage treatment facility
  • Pressure dewatering equipment (Filter press)
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Waste water treatment facility
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Waste water treatment facility
  • Floating sludge collector (Non-metallic)
  • Membrane plate diffuser (Super fine bubble)
  • Auto sand filter (Continuous filter)
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Sludge treatment facility
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Sludge treatment facility

Life Cycle Business

Our life cycle business model delivers long-term contracting services based on the Tsukishima Kikai Group’s technologies and operation and maintenance know-how.
Our public-private partnership businesses include private finance initiative (PFI) and design, build, and operate (DBO) contracts that integrate facility construction with long-term (15–20 years) operation and maintenance (O&M), and power generation from digestion gas utilizing the feed-in tariff (FIT) program.