Google Search the Journal web-site:
|
Abstract - Issue Sep 2014, 35 (5) Back
nstantaneous and historical temperature effects on a-pinene
Water
quality improvement by natural plant-mineral composites and field
temperatures of a eutrophic lake in South Korea
Byung Jung-Hwan1,
Ha-Kyung Kim1, Sun-Ki Mun2 and Baik-Ho Kim3*
1Department of
Environmental Science, Hanyang University, Seoul 133 791, South Korea
2MCE-Korea Co.,
Seongnam-si, Gyeonggi 463 712, South Korea
3Department of
Life Science, Hanyang University, Seoul 133 791, South Korea
*Corresponding
Author E-mail: tigerk@hanyang.ac.kr
|
Publication
Data
Paper received:
23 September 2013
Revised received:
31 January 2014
Accepted:
14 February 2014
|
Abstract
To
improve the water quality of Shingal Reservoir, a eutrophic lake in South
Korea, field tests were performed to assess the influence of water
temperature on water quality improvement (WQI) ability of domestic
plant?mineral composites (PMCs). Interestingly, Cyanobacterium was found to
be dominant even in low-temperature seasons, especially winter leading to
more effective for diatom growth. Factors such as phytoplankton, biological
oxygen demand (BOD) and phosphorous showed high WQI over 70% at 20?C, but
declined to 40% at temperatures above 25?C. WQI for Cyanobacteria decreased
with increasing water temperature, whereas for diatoms WQI was 90% regardless
of water temperature. Additionally, bacterial density and total nitrogen
showed very low WQI without water temperature. Collectively, the results
indicate that high water temperature decreased WQI ability of a PMC to
control phytoplankton (Microcystis aeruginosa) and increased their
ability to control diatoms. ?
Key
words
Allelochemicals,
Field temperature, Phytoplankton, Plant-mineral composite, Water quality
|
Copyright
? 2014 Triveni Enterprises. All rights reserved. No part of the Journal can
be reproduced in any form without prior permission. Responsibility
regarding the authenticity of the data, and the acceptability of the
conclusions enforced or derived, rest completely with the author(s).
|
|