Hydrodynamic separator sediment retention testing.

Mohseni, Omid; Saddoris, David A.; McIntire, Kurtis D.; Gulliver, John S.

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Hydrodynamic separator sediment retention testing.

2010-03-01
By Mohseni, Omid ; Saddoris, David A. ; McIntire, Kurtis D.

File Language:

English

Details

Creators:

Mohseni, Omid ; Saddoris, David A. ; McIntire, Kurtis D. ; Gulliver, John S.
Corporate Creators:

St. Anthony Falls Laboratory
Corporate Contributors:

Minnesota. Dept. of Transportation. Research Services Section
Subject/TRT Terms:
Publication/ Report Number:

MN/RC 2010-10
Resource Type:

Tech Report
Geographical Coverage:

Minnesota
Corporate Publisher:

Minnesota. Dept. of Transportation. Research Services Section
Abstract:

Hydrodynamic separators are widely used in urban areas for removal of suspended sediments and floatables from ; stormwater due to limited land availability for the installation of above ground stormwater best management ; practices (BMPs). Hydrodynamic separators are often sized based on 2-yr stormwater runoff from the drainage ; basins that they serve. However, during less frequent storm events, e.g. 10-yr storm events, device design ; treatment rates are exceeded and previously captured sediments can be scoured and washed out. ; At the St. Anthony Falls Laboratory, three devices have been studied and tested and, subsequently, a testing ; method has been developed to assess sediment retention in hydrodynamic separators under flow rates exceeding ; their maximum design treatment rates (MDTR). This new testing protocol has been used in controlled field and ; laboratory tests on full-scale commercial devices under high water flow conditions to determine sediment retention ; performance of hydrodynamic separators. In addition, velocity profiles have been taken to observe the complex ; flow patterns in these devices. Application of this work is primarily to establish the frequency of required cleaning ; for installed devices.
Format:

PDF
Funding:

(c) 89261 (wo) 53
Download URL:

https://rosap.ntl.bts.gov/view/dot/17883/dot_17883_DS1.pdf
File Type:

[PDF - 8.52 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:2e5395d2083a12530a93fee7b639cb39767ea9e8ef71586e964e61729b22c033

File Language:

English

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