STRATIFICATION IN WASTE STABILIZATION PONDS I: EFFECTS ON POND PARAMETERS
DOI:
https://doi.org/10.4314/njt.252.533Keywords:
Thermal stratification, coliform bacteria, waste stabilization pond, dissolved oxygen, chemical oxygen demandAbstract
Stratification studies were carried out on the waste stabilization pond system at the University of Nigeria, Nsukka, Nigeria. Analysis of the samples collected with a water column sampler at 5cm and 0.1m apart showed some stratification of temperature, algae, pH, dissolved oxygen, coliform bacteria, chemical oxygen demand and nutrients. Coliform-bacteria numbers were lowest at positions in the water column where pH, temperature, dissolved oxygen and algae were high. The distribution and variation of both the physiochemical and biological characteristics inside the water body were found to be influenced by thermal stratification. Maximum temperature, DO and pH was observed at the surface layer. The vertical distribution of BOD5, COD, Coliform bacteria, phosphorus and ammonia nitrogen showed maximum concentration at the bottom layer.
Downloads
Issue
Section
License
The contents of the articles are the sole opinion of the author(s) and not of NIJOTECH.
NIJOTECH allows open access for distribution of the published articles in any media so long as whole (not part) of articles are distributed.
A copyright and statement of originality documents will need to be filled out clearly and signed prior to publication of an accepted article. The Copyright form can be downloaded from http://nijotech.com/downloads/COPYRIGHT%20FORM.pdf while the Statement of Originality is in http://nijotech.com/downloads/Statement%20of%20Originality.pdf
For articles that were developed from funded research, a clear acknowledgement of such support should be mentioned in the article with relevant references. Authors are expected to provide complete information on the sponsorship and intellectual property rights of the article together with all exceptions.
It is forbidden to publish the same research report in more than one journal.