HOPPER BOTTOM TANK

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Due to the constant requirements to achieve the most efficient clarification (separation) by chemical pre-treatment and sedimentation, we have developed a hopper bottom tank. The basic characteristic of these sedimentation tanks is the high efficiency of deposition-clarification per unit of its volume.

Sedimentation efficiency: from 1-4 NTU.

It consists of SPECIAL PACKAGES OF WORKING ELEMENTS with appropriate flow distances between and around the elements, located inside the tank, with a conical bottom. The tanks can be made of stainless steel or carbon steel with anti-corrosion protection.

Each of the elements of the set has the shape of a triangle with a collector-collector of pure liquid in the upper part. The inlet fluid comes from both sides of the triangular channel.
This type of sedimentation tank efficiently combines the separation of solid materials from liquids with the rough separation of fats and oils from water, while in the conical bottom of the precipitator the separated sludge is compacted.

The water retention time in the hopper bottom tank inserts is 5-15 minutes.

For example: For the same deposition effect, the LAMELAR SEDAMINTATION TANK has a 10 times smaller volume compared to the STATIC SEDAMINTATION TANK. It has a smaller volume 10 times.
HOPPER BOTTOM TANK in relation to the STATIC SEDAMINTATION TANK has a smaller volume up to 20 times, and in relation to the LAMELAR SEDAMINTATION TANK up to 4 times.

PROJECT NAME (Case study):

Development of a plant for pre-treatment of well water up to quality level <5 NTU at the HPV plant, capacity 10 m3 / h - HOTEL "MEDITERAN" BEČIĆI The results are summarized in the table below:

Characteristics PU Value
Inlet water  Purified water
Turbidity NTU 339 2,7


The entire pre-treatment system consists of:

  • Hopper bottom tank.
  • Settling material stainless steel AiSi 316.
  • The sedimentation tank is equipped with a vibro motor, which accelerates the compaction of sludge
  • Pipe flocculator (pipe mixer) with a special chamber to improve the flocculation process. Material: HDPE
  • Polyelectrolyte dosing system, etc.
     

 

Special hopper bottom tank can be used in a wide range of process industry and utilities, in the preparation of clean technological water in various industries, drinking water preparation, various recirculations and reuse of manufactured fluids, industrial and municipal wastewater treatment processes, as well as in the revitalization of useful products and processing of intermediate products in various production processes.

Due to the special construction and the principle of operation, these sedimentation tanks can achieve a capacity of 400 m3 / h per device-unit.

 



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