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Clarifier Sludge Removal

Chain and Flight System

Chain and flight scraper systems are an effective solution for sludge removal in clarifier tanks.

AET offers an endless chain and flight scraper system, renowned for its top-of-the-line performance in sedimentation, flotation, and clarification processes. This system is flexible and can be utilized across various project applications and basin types.

AET chain and flight scraper systems for clarifiers can be used in combination with tube settler systems or in conventional clarifier tanks. AET offers various material options for chain and flight collector chains, shafts, and other components.

Advantages:

  1. Automatic chain tensioning system reduces maintenance efforts
  2. Service technician and extensive spare part inventory in Houston TX
  3. Electronic torque monitoring system with real-time data output
  4. Vast material and component options for any application and retrofits
  5. NSF 61 certified for drinking water

View our 4-shaft Chain Scraper System in 3D

AET and DEWA 4-shaft Chain Scraper System for top scum and bottom sludge scraping

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Clarifier Sludge Removal

Chain and Flight System Spare Parts

Scraper Flight

Scraper Flight

Composite (GRP) scraper flights are extremely durable and lightweight. Sludge does not accumulate inside the c-channel flight and maintenance is easy even after decades of use.
Collector Chain

Collector Chain

In our chain design, the spacer sleeve rotates over the sprockets. This design feature maximizes the lifespan of the collector chain and the sprockets thanks to minimal wear.

Shaft Assembly

All shafts (head shafts, idler and stubs), collars, wall brackets are made of SS materials and designed for heavy sludge loadings. Shaft sprockets can be turned around, which doubles the lifespan of the sprockets.
Carry, Return and Bottom Rails​

Carry, Return and Bottom Rails

All carry and return rails, including wall brackets are made of SS materials. This allows smooth sliding and low friction together with wear shoe parts and a practically infinite lifetime.
Collector Chain Tensioning Assembly​

Collector Chain Tensioning Assembly

Our system includes a unique tensioning system, that allows chain tensioning without draining tank. This feature saves time and resources, and is most operator friendly solution.
Drive Assembly

Drive Assembly

The chain scraper system is run by an electric motor and gear that are selected according to the application and required speed with extremely low energy consumption.

References

Indiana, USA
The WTP of Hammond, IN supplies up to 80 MGD of drinking water to the city of Chicago and the surrounding area. AET in collaboration with AECOM provided a turnkey clarifier system including tube settlers, support structure, catwalks, baffle walls, and effluent collection system. Since the clarifier basins are underground, all equipment had to be designed to fit through a 4ft manhole.

References

West Virginia, USA
AET provided full replacement for a turnkey tube settler clarifier system including support structure, stainless effluent troughs, baffle walls and water stop gates. The plant flowrate capacity was increased from 16MGD to 20MGD by using AET high performance LS50 tube settlers.

References

Densadeg® retrofit, TX, USA
AET retrofitted a Densadeg® high rate clarifier system in Texas, USA. The previously used PVC tube settlers were partially clogged and deteriorated caused by sunlight and UV radiation. The AET scope of supply included a new supporting structure, tube settlers for a round tank shape and improvements on the existing effluent launders.

References

Campus WWTP, FL, USA
AET provided engineering support for the design of an on-campus WWTP in Florida, USA. At the same time we supplied new tube settlers which are tested for different flow rates and solid levels.

References

Indiana, USA

The WTP of Hammond, IN supplies up to 80 MGD of drinking water to the city of Chicago and the surrounding area. AET in collaboration with AECOM provided a turnkey clarifier system including tube settlers, support structure, catwalks, baffle walls, and effluent collection system. Since the clarifier basins are underground, all equipment had to be designed to fit through a 4ft manhole.

West Virginia, USA

AET provided full replacement for a turnkey tube settler clarifier system including support structure, stainless effluent troughs, baffle walls and water stop gates. The plant flowrate capacity was increased from 16MGD to 20MGD by using AET high performance LS50 tube settlers.

Densadeg® retrofit, TX, USA

AET retrofitted a Densadeg® high rate clarifier system in Texas, USA. The previously used PVC tube settlers were partially clogged and deteriorated caused by sunlight and UV radiation. The AET scope of supply included a new supporting structure, tube settlers for a round tank shape and improvements on the existing effluent launders.

Campus WWTP, FL, USA

AET provided engineering support for the design of an on-campus WWTP in Florida, USA. At the same time we supplied new tube settlers which are tested for different flow rates and solid levels.

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