Reclamation of acidified lakes near Sudbury, Ontario by neutralization and fertilization
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Reclamation of acidified lakes near Sudbury, Ontario by neutralization and fertilization

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Published by Ministry of the Environment in Toronto .
Written in English


  • Water -- Pollution,
  • Acid disposition

Book details:

Edition Notes


LC ClassificationsTD 427 A27S 1976
The Physical Object
Pagination48 p.
Number of Pages48
ID Numbers
Open LibraryOL22035402M

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  Figure Effects of Liming Lakes. These lakes are located in the Sudbury region, and they were acidified by a combination of dry and wet atmospheric depositions. The times of treatment with neutralizing agents (CaCO 3 or Ca(OH) 2) are indicated by arrows, and the addition of phosphate by solid dots. Source: Modified from Dillon et al. ().Author: Bill Freedman. We use cookies to make interactions with our website easy and meaningful, to better understand the use of our services, and to tailor advertising. Summary. A trial programme on liming of acidified lakes and watercourses in Sweden was conducted during the period to The positive experiences acquired resulted in the initiation of a large-scale operative activity from onwards, which is mainly financed by governmental by: 8. Sphagnum mosses decline sharply, with a consequent reduction in biomass in the most acidified lakes, and colonization of surfaces previously covered by Sphagnum is usually slow. Proliferation of alternate water milfoil (Myriophyllum alterniflorum) has been observed in a number of shallow lakes after repeated liming by: 8.

Acidified Bowland Lake after Whole-Lake Neutralization and Lake Trout (SalvelinusNamaycush) and Yellow Perch (Percaflavescens) after Neutralization of an Acidic Lake Near Sudbury, Ontario." Can. J. Fish. Aquat. Sei., 47, (). Gunn, J. M., et al, "Survival, Growth, and Reproduction of Lake. Request PDF | Acidic Mining Lakes | Lakes can be acidified naturally (crater lakes or other volcanic waters) or by anthropogenic impact (acid rain and mine tailing. RELATIVE ACIDIFYING AND NEUTRALIZING POWER OF MATERIALS ADDED TO SOILS Source Potential acid or base effect Agricultural liming operation kg CaCOa ha'1 Neutralizing or basic effect keq ha'1 10 eq m"z Nitrogen fertilization with reduced form of N, such as urea or Nfy 70 kg N ha'1 Acidifying effect9 10 keq ha'1 1 eq Atmospheric. fertilization of acidified lakes near Sudbury, Ontario." Water Pol 1. Research Canada. Middle, Lohi, USA (Clearwater and Hannah as controls) BACI, 2 control and 2 treatment lakes year before treatment and year after. Limed in by fine powdered calcium carbonate slurry over lake surface pH control , treatment before , after, 6.

The chemical composition of acid lakes is summarized in Table for lakes in southern Norway (Gjessing, et al., ), the west coast (Hb'rnstrom et al., ) and west- central (Grahn et al., ) regions of Sweden, the LaCloche Mountains of southeastern Ontario (Beamish, ), and the vicinity of Sudbury, Ontario (Scheider et al.,   The first treatise on mining and extractive metallurgy, published by Georgius Agricola in , was also the first to highlight the destructive environmental side effects of mining and metals extraction, namely dead fish and poisoned water. These effects, unfortunately, are still with us. Since , mining methods, knowledge of metal extraction, and chemical and Author: Margarete Kalin, William N. Wheeler, Michael P. Sudbury, Bryn Harris. Although subaqueous oxidation of pyrite by Fe3+ is probably a common (and usually overlooked) phenomenon in acidic lakes, this process is not expected to be important in pit lakes with near-neutral or alkaline pH, mainly because the solubility of Fe3+ is so low at pH > 4. Bacterial reduction of iron and sulfate Most redox reactions. Phytoplankton and water quality. Here is the list of publications I found during my search, about phytoplankton, water quality index, biological indicators, etc. Yung, K., MacIsaac, H.J. & Hutchinson, T.C. () Biological recovery of two previously acidified, metal-contaminated lakes near Sudbury Ontario, Canada In Acid Reign '