TITLE:
Impact of Moringa oleifera Cake Residue Application on Waste Water Treatment: A Case Study
AUTHORS:
N. Ali Eman, C. S. Tan, E. A. Makky
KEYWORDS:
Moringa oleifera, Waste Water Treatment, Dissolved Oxygen, Turbidity, Heavy Metals, Antibacterial
JOURNAL NAME:
Journal of Water Resource and Protection,
Vol.6 No.7,
May
22,
2014
ABSTRACT: Most of water treatments require higher
expenditure. Chemical coagulant requires higher cost and has some drawback
after treatment such as pH changes. Moringa
oleifera cake residue (MOCR) is one of the alternatives to replace chemical
coagulant. A jar test apparatus was used to monitor water treatment. Water
quality of Gebeng River (GR) and waste water (WW) was examined before and after
treatment. Different parameters using (MOCR) was investigated. Preliminary
laboratory results showed the great potential of the (MOCR) to be used in water
treatment. MOCR shows an excellent reduction in turbidity (97 % was removed).
The bacteria were reduced from 1.7 × 105 to 8 × 103 CFU/ml. Dissolved oxygen (DO) was improved that elevated from 1.06 ± 0.04 to
5.09 ± 0.03 mg/L. However, chemical oxygen demand (COD) and biological oxygen
demand (BOD) were increased from 520.5 ± 0.71 to 865.0 ± 2.12 mg/L and from
120.5 ± 2.12 to 270.5 ± 2.12 mg/L respectively. Nevertheless, there is no
significant alteration of pH, conductivity, salinity and total dissolved solid
(TDS) after treatment. The iron (Fe) was fully removed while copper (Cu) and
cadmium (Cd) were successfully removed up to 98%. The reduction of lead (Pb)
also achieved 82.17%. Also, (MOCR) can be stored for long time up to 6 months
without affecting the biological properties of MO.