American Journal of Civil and Environmental Engineering  
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Developing Mathematical Relationship Between Solar Reflectors and Solar Enhanced Waste Stabilisation Pond
American Journal of Civil and Environmental Engineering
Vol.4 , No. 1, Publication Date: Feb. 20, 2020, Page: 1-10
235 Views Since February 20, 2020, 49 Downloads Since Feb. 20, 2020

Onuchukwu Okwudili John Chrysostom, Department of Civil Engineering, University of Nigeria, Nsukka, Nigeria.


Agunwamba Jonah Chukwuemeka, Department of Civil Engineering, University of Nigeria, Nsukka, Nigeria.


Wastewater stabilization pond is a basin dug in the ground to treat waste water. It is simple to construct, operate and maintain. However, its limitation is that it requires large area of land to treat waste water efficiently. It had been observed by previous researchers that solar reflectors improve the efficiency of waste water stabilization pond. Hence, this study investigates the mathematical relationships between a reflector and a pond with purpose of improving designs of enhanced waste stabilization pond. To achieve this, a portable pyranometer device was made and was used to measure solar radiation at different points in the pond. The study considered the distribution of solar radiation in the pond with regard to the variation of the reflector’s dimension. Also a mathematical relationship to describe the performance of the pond was also derived using regression analysis. The findings showed that the length and width of the reflected rays have a linear relationship with the length and width of the reflectors. The correlation factor for the variable length and width are 0.84 and 0.98 respectively. Also the distribution of solar radiation along the depth of the pond was observed to be curve like. The mathematical expression developed to describe the solar enhanced pond performance has a correlation factor of 0.87. It was verified with a correlation factor that is above 0.5 and slope in the range of 1.2 to 2.8.


Waste Water Stabilization Pond, Waste Water, Pyranometer, Solar Radiation, Solar Reflectors


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