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Sand sediment in a WWTP

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Issue

Inefficient operation waste water treatment plant

The operations of the WWTP can be more efficient.

Despite the use of a sand trap, a part of the sand from the influent flow rate ends up in the WWTP. The sand can cause sediment in undesirable places which can reduce the useful volume of a basin by 30%.

Solution

Sand suction cyclone installation

The Sand suction cyclone installation is an installation which can remove undesirable sediment from the bottom in cooperation with a diving company. By doing this, it is not needed to empty the basin when the sediment has to be removed.

Pros

  • The chance of exceedance of the discharge permit is minimized.
  • The purification process does not have to be shut down during the use of the Sand suction cyclone installation.
  • The installation can be used at almost every WWTP without mechanical/electrical modifications.
  • The installation can be placed on a truck and is thereby very mobile.

Characteristics

  1. Topic Water chain
  2. Development state 5: Component and/or breadboard validation in relevant environment
  3. Setting type Rural area, Agricultural area, Natural area, Urban area
  4. Water type Waste water, Effluent

Submitted innovation Award

Water Innovation Award
2017