WI-DNR Lakes-L Blog Update – Comments on a treatment methods on Bloomington Ponds.

Bloomington  is considering applying a chemical called PhosLock to the upper pond, Comments?

The City of Bloomington would like to improve the aesthetics in the first of 5 stormwater retention ponds located in the heart of Bloomington.  The first pond (8 foot max depth; ~1 surface acre) is intended to be a “reflection” pool but it suffers from a thick scum of algae in the summer.  This pond flows into a succession of other ponds planted with emergent aquatics for bio-retention, before the water flows into Cascades Creek.

The City is considering applying a chemical called PhosLock to the upper pond to tie up phosphorus.  Alternatively, they are considering installing a horizontal circulator pump to move the surface algal scum to this pond’s outlet.

I would welcome hearing from anyone who might have experience or insight into either of these treatments.

Thanks,

William W. Jones

Clinical Professor

School of Public and Environmental Affairs

1315 East Tenth Street

Indiana University

Bloomington, IN  47405

Office: 812-855-4556

Lab: 812-855-1600

E-mail: joneswi@indiana.edu

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One Response to WI-DNR Lakes-L Blog Update – Comments on a treatment methods on Bloomington Ponds.

  1. James Vennie says:

    Phoslock project feedback
    Dear Prof. Jones,
    I just wanted to let you know that I have a PhD student who is, at present, conducting a whole-lake trial of Phoslock in Clatto Reservoir, Dundee (Scotland). We have a good feel for the product and its limitations and would be happy to answer any questions (if we can).
    Other researchers working independently on Phoslock include:
    Miquel Lurling : http://www.aew.wur.nl/UK/Staff/ML/
    Kaspers Reitzel: http://www.sdu.dk/staff/reitzel.aspx
    Please also take a look at the following project in which our second whole-lake trial is described. The Phoslock application will be conducted in Feb.
    http://www.ceh.ac.uk/sci_programmes/water/LochFlemington.html
    Cheers,
    Dr. Bryan Spears
    Freshwater Ecologist
    Centre for Ecology & Hydrology- Edinburgh
    Bush Estate, Penicuik, Midlothian,
    Scotland
    EH26 0QB
    Phone: 0131 445 8536
    http://www.ceh.ac.uk/staffWebPages/DrBryanSpears.html

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