Abstract
A study of the effect laundry wastewater on the microalga Chlorella vulgaris was carried out. The study was carried out using different treatments 0% (control), 5%, 10%, 20%, 30%, 40%, 50% of laundry wastewater. The microalgal growth responses were determined optically using absorbance on spectrophotometer at 750nm. Samples were analyzed for physicochemical parameters such as pH, temperature, total dissolved solids, conductivity, biochemical oxygen demand and chemical oxygen demand using standard methods. Descriptive statistics, inferential (One-way analysis of variance (ANOVA) and post-hoc test Duncan multiple range (DMR) were done using Microsoft excel 2010 and statistical package for social science SPSS 22. The results showed that different concentrations of laundry wastewater stimulated the growth of Chlorella vulgaris with 50% treatment having the highest yield (3.2), followed by 40% treatment (2.7) and the control (0%) had the least yield of 0.6. There was a significant increase in pH and temperature while there was a decrease in total dissolved solids, biochemical oxygen demand, chemical oxygen demand and conductivity. The level of reduction in COD was from 1340mg/L to 364mg/L, which indicated that Chlorella vulgaris has the potential to bioremediate laundry wastewater.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.