We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Sediment characteristics of urban wastewater flows.
- Authors
Monadi, Mohsen; Mohammadi, Mirali
- Abstract
Particle size of sediment is necessary to design and operation of sewer systems. In this regard, calculation of the effective particle diameter (EPD) to determine the particle Reynolds number (Ret) is very important. The present research work focuses on the monitoring of non-cohesive sediments in urban wastewater flow and determination of the EPD considering dry and wet weather. For this goal, the gradation of sediment has been achieved and analyzed. A field experimental data has been collected at the entrance grit chamber of wastewater treatment plant of Khomeyn City, Iran. Also, the weights of deposited particles per second have been measured and the results compared with total load calculated by the Graf and Acaroglu method (1968) and the Einstein method (1950) by using d35, d50, d65 and deff. The results show that the methods estimate the weight of deposited sediment with more accuracy by using deff. Also, the gradation curve shows that the most particle sizes of the sediments in urban wastewater flow are between 0.075 to 31 mm and the averaged value of d50 for dry and wet weather condition are about 0.98 and 2.32 mm, respectively. The average value of d50 for all conditions is about 1.45 mm.
- Subjects
IRAN; SEWAGE disposal plants; SEWAGE; SEDIMENTS; REYNOLDS number
- Publication
Desalination & Water Treatment, 2022, Vol 264, p102
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2022.28587