Treatment of Greywater for Non-Potable Applications

Authors

  • I. I. Nwajuaku
  • O. E. Ekenta
  • A. I. Nwajuaku

Keywords:

Greywater treatment plant, Moringa Oleifera, natural coagulant, turbidity

Abstract

This study presents the treatment of greywater for non-potable applications such as toilet flushing, concrete production, and irrigation. In this study, a laboratory-scale greywater treatment plant was designed and fabricated to treat greywater with a combination of physical and natural treatments systems. These natural systems include natural-draft aerator system, coagulation by natural coagulant (Moringa Oleifera), and filtration by sand and sawdust filter media. A total of five samples of raw greywater were collected every morning from two female hostels, namely Prof. Dora Akunyili and Chief Stella Okoli hostels in Nnamdi Azikiwe University, (NAU) Awka. These samples were analyzed for turbidity, biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solid (TSS), total dissolved solid (TDS), total hardness as well as bacterial load The performance of the plant showed percentage reduction in concentration of parameters such as turbidity (98.7%), BOD (91.4%), COD (77.7%), TSS (93%), TDS (70.3%), and total hardness (67%). The concentration of these parameters decreased significantly as a result of the treatment.  This shows that the system may be adopted for treatment of greywater for non-potable uses in areas with limited water supply.      

References

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Published

2015-01-29

How to Cite

Nwajuaku, I. I., Ekenta, O. E., & Nwajuaku, A. I. (2015). Treatment of Greywater for Non-Potable Applications. American Scientific Research Journal for Engineering, Technology, and Sciences, 11(1), 32–41. Retrieved from https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/521

Issue

Vol. 11 No. 1 (2015): Volume 11, Issue 1: (JANUARY - 2015), (FEBRUARY - 2015), (MARCH - 2015)

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Articles

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