Dosage and settling time course optimization of Moringa oleifera in municipal wastewater treatment using response surface methodology

2019 ◽  
Vol 167 ◽  
pp. 45-56 ◽  
Author(s):  
Bashir Adelodun ◽  
Fidelis Odedishemi Ajibade ◽  
Matthew Segun Ogunshina ◽  
Kyung-Sook Choi
Keyword(s):  
Response Surface Methodology ◽  
Wastewater Treatment ◽  
Response Surface ◽  
Time Course ◽  
Moringa Oleifera ◽  
Municipal Wastewater ◽  
Settling Time ◽  
Municipal Wastewater Treatment

scholarly journals Combination of alum and extracted Moringa oleifera bioactive molecules powder for municipal wastewater treatment

2017 ◽  
Vol 10 (4) ◽  
pp. 1918 ◽  
Author(s):  
Cheikhou Kane ◽  
Aïcha Bâ ◽  
Seïd Ali Malloum Mahamat ◽  
Nicolas Ayessou ◽  
Maryam Khadim Mbacké ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Moringa Oleifera ◽  
Municipal Wastewater ◽  
Bioactive Molecules ◽  
Municipal Wastewater Treatment

scholarly journals Optimization of active coagulant agent extraction method from Moringa Oleifera seeds for municipal wastewater treatment

2021 ◽  
Author(s):  
Raouf Bouchareb ◽  
Kerroum Derbal ◽  
Abderrezzak Benalia
Keyword(s):  
Wastewater Treatment ◽  
Extraction Method ◽  
Moringa Oleifera ◽  
Municipal Wastewater ◽  
Oxygen Demand ◽  
Extraction Process ◽  
Additional Treatment ◽  
Municipal Wastewater Treatment ◽  
Solvent Concentration ◽  
Coagulation Activity

Abstract An enhanced and different method for the active coagulant agent extraction from Moringa Oleifera seeds powder (MOSP) was established and compared to the conventional extraction method in distillate water. In the improved method, MOSP were extracted using sodium chloride as solvent at different concentrations to extract more coagulant agent from Moringa Oleifera and enhance coagulation activity. In this study, MOSP were initially processed and oil content was removed to minimize coagulant concentration usage (MOSP-EO). Moringa Oleifera seeds powder was characterized by both X-ray and FTIR analysis. Ultrasound treatment as well was considered as an additional treatment for MOSP-EO to investigate its effect on coagulant agent extraction process improvement. Coagulation/flocculation experiments were conducted to assess coagulant extraction performance realized through various conditions. The effect of coagulant dosage, solvent concentration and ultrasound exposition duration were investigated for a real effluent of municipal wastewater treatment. Among the three studied NaCl concentrations, 1.0 M was found to be the best solvent concentration for high turbidity removal of more than 97% using 140 mg/L of MOSP-EO compared to extraction in distillate water 88% using 170 mg/L of the same coagulant. NaCl 1.0 M demonstrated the best performance in biochemical oxygen demand (BOD5) removal as well, where more than 98% of municipal wastewater initial BOD5 was eliminated. Mixing MOSP-EO assisted with ultrasound waves at different treatment periods did decrease the active coagulant agent extraction and thus showed its inconvenient for Moringa Oleifera coagulation activity usage.

Optimization of Coagulation Process for Disperse Navy Blue Dye Wastewater Treatment Using Response Surface Methodology

2014 ◽  
Vol 977 ◽  
pp. 270-273
Author(s):  
Ming Li ◽  
Yan Zhen Yu ◽  
Guang Yong Yan
Keyword(s):  
Response Surface Methodology ◽  
Wastewater Treatment ◽  
Response Surface ◽  
Removal Efficiency ◽  
Ph Value ◽  
Settling Time ◽  
Blue Dye ◽  
Dye Wastewater ◽  
Coagulation Process ◽  
Coagulant Dosage

A response surface methodology (RSM) was used for the determination of optimum coagulation process conditions for disperse navy blue dye wastewater treatment. The experimental design was Box-Behnken design (BBD) with three operational variables: coagulant dosage, pH value and settling time. The influence of these three independent variables on the chroma removal was evaluated using a second-order polynomial multiple regression model. Quadratic model was predicted for the response variable and the maximum model-predicted chroma removal efficiency was 95%. Based on surface and contour plots, the optimum conditions were obtained to be coagulant dosage of 70.98 mg/L, pH value of 7.46, and settling time of 15.80 min with the actual chroma removal efficiency as 93%.

STUDIES REGARDING THE PERFORMANCES OF MUNICIPAL WASTEWATER TREATMENT PROCESSES

2006 ◽  
Vol 5 (4) ◽  
pp. 685-692
Author(s):  
Elisabeta Chirila ◽  
Ionela Carazeanu Popovici ◽  
Techin Ibadula ◽  
Alice Iordache
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Municipal Wastewater Treatment ◽  
Treatment Processes
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