In-situ measurement of dynamics of pump-pipeline system transporting sewage sludge. Part II. Change in operating characteristics of a pump during sewage sludge pumping

Kód výsledku v IS VaVaI

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RIV/68407700:21220/25:00385663

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

In-situ measurement of dynamics of pump-pipeline system transporting sewage sludge. Part II. Change in operating characteristics of a pump during sewage sludge pumping

Popis výsledku v původním jazyce

This study investigates the issue of sewage sludge pumping, with a focus on methods for recalculating the performance parameters of a specific hydrodynamic sludge pump from values relevant to clean water pumping to those applicable to sewage sludge pumping. The pump under assessment is the Flygt NT 3301 HT - 458, featuring a nominal power of 55 kW, a rated speed of 1475 rpm, and a specific speed of 34.4 rpm. Performance parameters were measured during the pumping of sewage sludge with a dry solids content of 5.2%. The experimentally obtained performance parameters and pump performance curves for sludge pumping were compared to predicted performance curves recalculated from clean water to 5.2% sewage sludge. Differences between the experimental and predicted values are analysed, and the suitability of the applied recalculation methods is assessed. The study concludes with recommendations for optimizing the performance parameters of hydrodynamic sludge pumps in wastewater treatment plants.

Název v anglickém jazyce

In-situ measurement of dynamics of pump-pipeline system transporting sewage sludge. Part II. Change in operating characteristics of a pump during sewage sludge pumping

Popis výsledku anglicky

This study investigates the issue of sewage sludge pumping, with a focus on methods for recalculating the performance parameters of a specific hydrodynamic sludge pump from values relevant to clean water pumping to those applicable to sewage sludge pumping. The pump under assessment is the Flygt NT 3301 HT - 458, featuring a nominal power of 55 kW, a rated speed of 1475 rpm, and a specific speed of 34.4 rpm. Performance parameters were measured during the pumping of sewage sludge with a dry solids content of 5.2%. The experimentally obtained performance parameters and pump performance curves for sludge pumping were compared to predicted performance curves recalculated from clean water to 5.2% sewage sludge. Differences between the experimental and predicted values are analysed, and the suitability of the applied recalculation methods is assessed. The study concludes with recommendations for optimizing the performance parameters of hydrodynamic sludge pumps in wastewater treatment plants.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 22nd International Conference on HYDROTRANSPORT

ISBN

978-80-01-07404-6

ISSN

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e-ISSN

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Počet stran výsledku

14

Strana od-do

198-211

Název nakladatele

CESKE VYSOKE UCENI TECHNICKE V PRAZE

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

27. 5. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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