Influence of ammonia-nitrogen on the diversity of microalgae in clean and highly concentrated wastewater
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2014, Vol 4, Issue 4
Abstract
The diversity of microalgae can be affected by different factors serving as source of their nutrients. The most promising factor which is highly variable for different clean and waste-water bodies is Ammonia-nitrogen (NH4- N). The NH4-N studied for different locations of the district Malakand showed a variation in their values in respect to different seasons. The areas studied has NH4-N value ranges from 0.4-3 mg/L for stagnant water, 0.1- 0.8 mg/L for running water and 2.1- 4.4 mg/L for wastewater. The highest values were found to be in summer season for all the water bodies studied. The NH4-N values were enhanced by warm temperature in stagnant and waste water bodies, while there was no temperature effect on NH4-N of running water. NH4-N is a basic source of nitrogen for microalgae growth and stagnant clean water has sufficient NH4-N which is best suitable place for a variety of microalgae growth. Because of high temperature summer season could provide sufficient NH4-N in these water bodies. Excessive amount of NH4-N in a water body could limit microalgae variation and only tolerant species could develop which is a source of algal blooms.
Authors and Affiliations
Fida Hussain, Syed Zahir Shah, Muhammad Saleem Khan, Wisal Muhammad, Sajjad Ali, Wenguang Zhou, Roger Ruan
Keywords
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