Hydraulic Retention Time

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The average amount of time that liquid and soluble compounds stay in a reactor or tank. It is calculated by dividing the volume of a reactor (e.g. m3) by the influent flow rate (e.t. m3/day). In wastewater treatment systems the HRT influence the treatment efficiency and is therefore an important design parameter.

Synonyms

HRT

Detention Time

Abbreviation

HRT

References

Compendium of Sanitation Systems and Technologies. 2nd Revised Edition

Glossary Term Name

Hydraulic Retention Time

Legacy NID

1070

Legacy VID

30165

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