Biodecolourization of Yellow Dye Using Chlorella Vulgaris and Sphaerocystics Schroeteri
Ezenweani Sunday Raymond,
Kadiri Medina Omo
Issue:
Volume 5, Issue 1, March 2019
Pages:
1-6
Received:
14 December 2018
Accepted:
2 January 2019
Published:
31 January 2019
Abstract: The application of biodecolourization of textile effluents is a cost effective, environmental friendly and appropriate alternative measure in the treatment of textile effluents. In this study, two microalgae namely; Chlorella vulgaris and Sphaerocystis schroeteri were used. Yellow coloured dye was used for this study and dye solution were prepared in different concentrations of 1mg/l, 5mg/l, 10mg/l and 20mg/l. Significant decolourization was recorded in a 14 day experiment carried out by reading the absorbance of the dye solution inoculated with microalgae. Maximum decolourization by both algae was obtained at 10mg/l. In Chlorella vulgaris, maximum decolourization was 43.12% (10mg/l) while in Sphaerocystis schroeteri, maximum decolourization was 45.03% (10mg/l). The order of highest percentage decolourization for Chlorella vulgaris was 10mg/l, 20mg/l, 5mg/l, 1mg/l, while in Sphaerocystis schroeteri, the order was 10mg/l, 5mg/l, 20mg/l, 1mg/l. During the study, maximum dye decolourization, irrespective of the concentration and algae was obtained on the final day. In Chlorella vulgaris, the minimum and maximum decolourizations respectively, were 19.42% and 43.12%, but in Sphaerocystis schroeteri, the minimum and maximum decolourization respectively, were 24.27% and 45.03%. However, decolourization was significantly dependent on dye concentration. Comparatively, there was no significant difference between the percentage decolourization by the two microalgae.
Abstract: The application of biodecolourization of textile effluents is a cost effective, environmental friendly and appropriate alternative measure in the treatment of textile effluents. In this study, two microalgae namely; Chlorella vulgaris and Sphaerocystis schroeteri were used. Yellow coloured dye was used for this study and dye solution were prepared ...
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Trends in Cigarette Smoking in Kenya and the Challenges Impeding Cessation
Caren Kurgat,
Joshua Kibet,
Bornes Mosonik,
Francis Opuru
Issue:
Volume 5, Issue 1, March 2019
Pages:
7-15
Received:
21 March 2019
Accepted:
7 May 2019
Published:
30 May 2019
Abstract: Despite intense campaigns to minimize cigarette smoking owing to the socio-economic risks associated with it, cigarette smoking worldwide has continued to rise. This is a major concern to both public health authorities and medical practioners. This paper examines the Kenyan status on cigarette smoking through measurement of various parameters including mass media campaigns, taxation, level of education, nature of employment, and government legislation. Descriptive research design was employed because of its robust capability to give an in depth analysis of state of affairs as it exists in relation to cigarette smoking patterns in three Kenyan counties (Nakuru, Kisii and Migori). The study involved respondents above 18 years of age and was carried out between March and April 2018. Chi-square statistics was used to assess the association between various variables. It is clear from this study that most cigarette smokers had acquired high school education and above; representing 70% of the respondents. At 95% confidence limit, the p-value = 0.39 and confidence interval, CI = －1.965－4.156. Therefore, cigarette smoking is dependent on the level of education. The odd ratio (OR) of 3.10 indicates a strong association between smoking and the level of education. This study also revealed that majority of the respondents smoked between 6 and 10 cigarettes per day (36%). Besides, 50% of the target population admitted to being aware of the health hazards caused by cigarette smoking despite their continued smoking habits. This survey has demonstrated that most cigarette smokers are not only well educated but are aware of the dangers of cigarette smoking. Moreover, most respondents are addicted to cigarette smoking despite taxes imposed on tobacco products including cigarettes. This characteristic behaviour may be attributed to high unemployment rates in Kenya which this study has established as one of the major reasons for cigarette smoking.
Abstract: Despite intense campaigns to minimize cigarette smoking owing to the socio-economic risks associated with it, cigarette smoking worldwide has continued to rise. This is a major concern to both public health authorities and medical practioners. This paper examines the Kenyan status on cigarette smoking through measurement of various parameters inclu...
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