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Analysis of Physico-Chemical Properties and Bacteriological Loads of Waste Water Effluent from Oxidation Pond at Woldia University, North Wollo, Ethiopia

Pages: 100-107

DOI: 10.18488/journal.13.2019.82.100.107

Gizachew Teshome , Yenus Abubaker , Hiwot Mengstie

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Rivers are vital component of the biosphere that contains less than one percent of the world’s fresh water which is being polluted by indiscriminate disposal of domestic and industrial waste sewerage. The purpose of this study was to analysis the level of heavy metals and physico-chemical characteristics of wastewater effluent from oxidation pond. Samples were collected per month starting from may2018 up to July2018. Three sampling ponds were selected purposefully among constructed 13 different size oxidation ponds and one site in waste receiver river. Samples were collected by triplicate in each sample sites and totally 12 sample sites were fixed. Some parameters like pH, Temperature, Conductivity, and Turbidity) were measured in situ. ICP-OES used for analysis heavy metal. XLSTAT version 2014.5.03 was applied for analysis and interpreting the relationship of each water quality parameters using one way ANOVA and Pearson correlation. This study shows Conductivity, pH, were showed highly significance difference among oxidation ponds while temperature showed non-significance difference (a<0.05). Sodium and potassium were found dominantly in all oxidation ponds and showed highly significance difference among sampling sites. The mean concentrations of heavy metals in the various stages of waste water treatment pond is not more polluted based on the WHO and FAO guidelines for different purpose. In general this study revealed that the treated wastewater effluent from oxidation pond is not relevant for human and livestock drinking rather than useable for irrigation purpose.

Contribution/ Originality
This study used to contributes in the existing literature to review environmental problem related with domestic, industrial and municipal waste management. This study shows limitation of wastewater treatment using oxidation pond. The primary contribution of this finding is to determine the quality of effluent wastewater to recommend better removal efficiency oxidation pond.

Exploitation of Solar Energy between the German Leadership and the Reality of the Algerian Experience: Analytical Study During the Period (2000-2017)

Pages: 108-120

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DOI: 10.18488/journal.13.2019.82.108.120

Amal Rahmane , Abdelhak Bentafat , Ahmed Sellami

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This study aims to reveal the reality of the Algerian experience in the exploitation of solar energy, considering that Algeria is a large country in terms of space and climate capabilities that allow it to attract this kind of renewable energies. The study also observes the German experience in this field in order to benefit from it; thus, it relied upon the analytical descriptive approach. The results of the study showed the limited exploitation of this type of energy in Algeria. Despite the gradual improvement in the use of solar energy, mainly since 2015, this improvement is not as expected as it recorded an output of 244.1 MW in 2016, and the output did not exceed 400 MW until the end of 2017. This is despite the tendency of Algeria in activating and assimilating solar energy and developing its exploitation as an alternative energy for fossil energy, which comes as a priority within the National Renewable Energy Program 2015-2030. The results of the study also showed the high level achieved by Germany in the exploitation of solar energy despite the obstacles encountered where the country is cloudy. Germany’s solar power capacity reached 40988 MW in 2016 after it was within 114 MW in 2000. This would not have been achieved in Germany in the absence of the promotion of investment in renewable solar energy and consumption, where the growth rate of solar energy consumption reached about 9% in 2016, but in Algeria remains very modest, as less than 0.05%.

Contribution/ Originality
The paper's primary contribution is giving a clear vision about the possibility of strengthening the partnership between Germany's technical development as the largest generator of electric energy from sunlight in the world, and Algeria's abundant potential as the largest solar energy reservoir in the world.

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Recent Articles

Analysis of Physico-Chemical Properties and Bacteriological Loads of Waste Water Effluent from Oxidation Pond at Woldia University, North Wollo, Ethiopia

Finding References

Analysis of Physico-Chemical Properties and Bacteriological Loads of Waste Water Effluent from Oxidation Pond at Woldia University, North Wollo, Ethiopia

Exploitation of Solar Energy between the German Leadership and the Reality of the Algerian Experience: Analytical Study During the Period (2000-2017)

Finding References

Exploitation of Solar Energy between the German Leadership and the Reality of the Algerian Experience: Analytical Study During the Period (2000-2017)