000 02220nam  2200337za 4500
0019.848975
003CaOODSP
00520221107153816
007cr |||||||||||
008171218s1985    oncab||fob|||f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn-bc
0861 |aEn13-5/85-167E-PDF
24500|aIn-lake precipitation of phosphorus by lime treatment |h[electronic resource] / |cT.P. Murphy ... [et al.].
260 |aBurlington, Ont. . : |bNational Water Research Institute, Canada Centre for Inland Waters, |c[1985].
300 |a41, [45] p. : |bill., map
4901 |aNWRI contribution series ; |v85-167
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references.
5200 |a"Lime induced precipitation of phosphorus in Frisken Lake was evaluated as a lake restoration technique. The experimental site is in the semi-arid interior of British Columbia. The lake receives a high phosphorus loadingfrom the natural weathering of apatite. Before the lime treatment, less than half of the epilimnetic phosphorus precipitated with calcium carbonate. In 1983, the addition of 23 tonnes of Ca(OH)2 removed 80% of the chlorophyll a and 97% of the soluble reactive phosphorus (SRP) from the epilimnion. In 1984, the addition of 16 tonnes of lime removed more than 90% of the chlorophyll a and 60% of the SRP from the epilimnion. Most of the precipitated phosphorus dissolved in the hypolimnion. Several changes in lake chemistry indicated that lime treatment would produce more than a seasonal improvement in water quality"--Management perspective.
546 |aIncludes management perspective and abstract in English and French.
69207|2gccst|aLakes
69207|2gccst|aWater quality
7001 |aMurphy, Thomas P. D. |q(Thomas Patrick Daniel), |d1948-
7101 |aCanada. |bEnvironment Canada.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|vno. 85-167|w(CaOODSP)9.844121
85640|qPDF|s4.97 MB|uhttps://publications.gc.ca/collections/collection_2017/eccc/En13-5-85-167-eng.pdf