scholarly journals Enhanced Coagulation Efficiency of Moringa Oleifera Seeds Through Selective Oil Extraction

1970 ◽  
Vol 4 (1) ◽  
Author(s):  
Suleyman A. Muyibi ◽  
Saad A. Abbas Megat Johari M. M. Noor Fakrul Razi Ahmadun
Keyword(s):  
River Water ◽  
Moringa Oleifera ◽  
Oil Extraction ◽  
Kernel Weight ◽  
Turbid Water ◽  
Water Turbidity ◽  
Turbidity Removal ◽  
Kaolin Suspension ◽  
High Turbidity ◽  
Moringa Oleifera Seed

In this laboratory based study, varying quantities of oil, corresponding to 20 % w/w, 25 % w/w and 30 % w/w kernel weight extracted from Moringa oleifera seeds ( S1, S2, S3) respectively  were applied in the coagulation of model turbid water (kaolin suspension) and turbid river water samples from River Batang Kali and River Selangor in Malaysia to determine the percentage oil removed which gave the best coagulation efficiency. For model turbid water (kaolin suspension) coagulation of low turbidity of 35 NTU, medium turbidity of 100 NTU and high turbidity of 300 NTU, sample S2  gave the best turbidity removal corresponding to 91.7%, 95.5% and 99% respectively. Application of sample S2 to River Batang Kali with low initial turbidity of 32 NTU and high initial turbidity of 502 NTU gave a highest turbidity removal of 69% and 99% respectively. Application to River Selangor with medium initial turbidity- of 87 NTU and high initial turbidity of 466 NTU gave a highest residual turbidity' of 94% and 98.9%,  respectively.Key words: Moringa oleifera seed, selective oil extraction, coagulation, model turbid water (kaolin suspension), river water, turbidity removal.

scholarly journals Antibacterial activity of the white lily Moringa oleifera seed extract and its use in water treatment

2018 ◽  
Vol 5 (11) ◽  
pp. 699-707 ◽  
Author(s):  
Tânia Maria de Andrade ◽  
Krystyna Gorlach-Lira
Keyword(s):  
Water Treatment ◽  
Aqueous Extract ◽  
Water Samples ◽  
Moringa Oleifera ◽  
Heterotrophic Bacteria ◽  
Fecal Coliforms ◽  
Water Turbidity ◽  
Jar Test ◽  
Agar Diffusion Test ◽  
Moringa Oleifera Seed

White lily Moringa oleifera seed powder acts as a natural coagulant promoting the reduction of water turbidity by the coagulation and sedimentation of the suspended particles, also eliminating the microorganisms by sedimentation. The aqueous extract of M. oleifera presented an inhibitory capacity for the growth of Staphylococcus aureus, whereas the hydroalcoholic extract inhibited S. aureus, Salmonella typhimurium and Vibrio cholerae, using the agar diffusion test. Standard strains of Pseudomonas aeruginosa, Escherichia coli and Enterococcus faecalis were resistant to the extracts. The water treatment through the aqueous extract of M. oleifera seeds at 0.02% and 0.01% concentrations was evaluated with the water samples collected in the Sinibu River, Paraíba State, Brazil, using the jar test. The water samples analyzed in this work were characterized by low turbidity (2.8-3.0 NTU), and pH and alkalinity between 5.8-7.3 and 10-30 mg CaCO3/L, respectively. After water treatment with M. oleifera aqueous extract, it was observed that pH, turbidity and alkalinity did not change significantly. Total heterotrophic bacteria counts in the crude water samples were between 1.9 x 10^5 UFC/100 mL and 1.1 x 10^6 CFU/100 mL, while the number of fecal coliforms was between 2.3 x 10^2 NMP/100 mL and 2.4 x 10^3 NMP/100 mL. The counts of total bacteria and fecal coliforms in the water samples treated with aqueous white lily extract at both concentrations tested (0.02% and 0.01%) during the 1.5-hour period did not differ significantly when compared to the untreated water. The results obtained in this work indicate that low turbidity of water influenced the efficacy of M. oleifera extract in the removal of bacteria in the treated water, since the level of coagulation depends on water turbidity.

scholarly journals The performance of sludge blanket clarifier against conventional settler under high water turbidity conditions

2018 ◽  
Vol 13 (3) ◽  
pp. 642-653 ◽  
Author(s):  
Moharram Fouad ◽  
Shaban Hassan
Keyword(s):  
Removal Efficiency ◽  
Field Data ◽  
High Water ◽  
Ease Of Use ◽  
Turbid Water ◽  
Water Turbidity ◽  
Turbidity Removal ◽  
Accumulation Pattern ◽  
Algae Removal ◽  
Sludge Accumulation

Abstract The performance of a sludge blanket clarifier was evaluated and compared to conventional settlers under high levels of turbidity and algae in the field and experimentally. Field data of sludge blanket and conventional clarifier operation were observed simultaneously for the treatment of highly turbid water. In addition, a comparison was carried out on turbidity removal efficiency, algae removal, and sludge accumulation pattern. Finally, these systems were simulated in the laboratory and operated to treat turbid water with high levels of turbidity and algae up to 80 NTU and 109cells/l respectively. Field data confirmed that the sludge blanket clarifier equipped with upper sludge cones has a high removal efficiency of turbidity and algae, ease of use and has insignificant sludge accumulation compared to the conventional settler. Further, laboratory experiments have confirmed that sludge blanket clarifier is also very effective for the treatment of high algae concentrations up to 109cells/l, with a short retention time, compared to a conventional settler, which was not effective under these conditions.

scholarly journals Turbidity Removal by Moringa Oleifera Seed Coagulant and Slow Sand Filtration

2011 ◽  
Vol 128 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Tasuma SUZUKI ◽  
Masakazu NIINAE ◽  
Yasuaki SANADA ◽  
Atsushi NAKAMURA ◽  
Yukio KOUCHI
Keyword(s):  
Moringa Oleifera ◽  
Sand Filtration ◽  
Turbidity Removal ◽  
Slow Sand Filtration ◽  
Moringa Oleifera Seed

Treatment of Wastewater by Coagulation Using Phytochemical

2013 ◽  
Vol 781-784 ◽  
pp. 2357-2360
Author(s):  
Preeyaporn Buaban ◽  
Anurak Petiraksakul ◽  
Sakoraphob Banlengchit
Keyword(s):  
Moringa Oleifera ◽  
Cod Removal ◽  
Synthetic Wastewater ◽  
Oily Wastewater ◽  
Turbidity Removal ◽  
Kaolin Suspension ◽  
Extract Solution ◽  
Optimum Dosage ◽  
Aluminium Sulfate ◽  
Jar Test

The objective of this study is to compare organic and inorganic coagulants in coagulation-flocculation and sedimentation, using a jar test apparatus. Six types of coagulants, namely extract solution of moringa oleifera seed with distillation water (Moringa-H), extract solution of moringa oleifera with sodium chloride (Moringa-N), Micro-nice®bio separator A from Technogreen Limited, aluminium sulfate (alum), ferric chloride (FeCl3) and polyaluminium chloride (PAC) were investigated using three types of synthetic wastewater, kaolin suspension, soymilk solution and oily wastewater for determination of the optimum dosage and coagulation mechanism. The results indicated that PAC was able to remove turbidity of 90-94%, pH in the range of 6-7 in the kaolin suspension concentration range of 20-100 mg/L, while the Moringa-H showed turbidity removal of 66-91% which was better than Moringa-N and dry sediment using Micro-Nice®gave minimum sludge. The Micro-Nice®also showed high turbidity removal in colloid and oily wastewater. The optimum dosage of Micro-Nice®was in the range of 80-120 mg/L for colloid removal of 89-96% and COD removal of 37-73% at the colloid concentration range of 100-1000 mg/L, while 10 g/L oily wastewater showed that the optimum dosage of Micro-Nice®was 200 mg/L for turbidity removal of 99%, COD removal of 73% and oil removal of 97%.

Effects of Oil Extraction from Moringa Oleifera Seeds On Coagulation Of Turbid Water

2002 ◽  
Vol 59 (2) ◽  
pp. 243-254 ◽  
Author(s):  
Suleyman Aremu Muyibi ◽  
Megat Johari Megat Mohd. Noor ◽  
Tan Kok Leong ◽  
Lam Hong Loon
Keyword(s):  
Moringa Oleifera ◽  
Oil Extraction ◽  
Turbid Water

scholarly journals OPTIMIZATION OF FLOCCULATION PROCESS BY MICROBIAL COAGULANT IN RIVER WATER

2017 ◽  
Vol 18 (2) ◽  
pp. 63-70 ◽  
Author(s):  
Fatin Nabilah Murad
Keyword(s):  
River Water ◽  
Water Turbidity ◽  
Turbidity Removal ◽  
Effluent Concentration ◽  
Jar Test ◽  
Coagulation And Flocculation ◽  
Flocculating Activity ◽  
Flocculation Process ◽  
Test Process ◽  
Maximum Turbidity

The existing process of coagulation and flocculation are using chemicals that known as cationic coagulant such as alum, ferric sulfate, calcium oxide, and organic polymers.  Thus, this study concentrates on optimizing of flocculation process by microbial coagulant in river water. Turbidity and suspended solids are the main constraints of river water quality in Malaysia. Hence, a study is proposed to produce microbial coagulants isolated locally for river water treatment. The chosen microbe used as the bioflocculant producer is Aspergillus niger. The parameters to optimization in the flocculation process were pH, bioflocculant dosage and effluent concentration. The research was done in the jar test process and the process parameters for maximum turbidity removal was validated. The highest flocculating activity was obtained on day seven of cultivation in the supernatant. The optimum pH and bioflocculant dosage for an optimize sedimentation process were between 4-5 and 2-3 mL for 0.3 g/L of effluent concentration respectively. The model was validated by using a river water sample from Sg. Pusu and the result showed that the model was acceptable to evaluate the bioflocculation process.

scholarly journals Utilization of Moringa oleifera as Natural Coagulant for Water Purification

2021 ◽  
Vol 1 (1) ◽  
pp. 1-11
Author(s):  
Meng Hong Ng ◽  
Mohamed Soliman Elshikh
Keyword(s):  
Contact Time ◽  
Moringa Oleifera ◽  
Treatment Process ◽  
Removal Rate ◽  
Turbidity Removal ◽  
Natural Coagulant ◽  
Water Treatment Process ◽  
Coagulation And Flocculation ◽  
Natural Coagulants ◽  
Moringa Oleifera Seed

The plant-based natural coagulant has the potential to substitute the chemical coagulant in the water treatment process. In this work, the potential of plant-based natural coagulants in the ability of turbidity removal was identified. The Moringa oleifera seed was selected for the batch analysis test such as pH, contact time, agitation, and dosage. The high alkaline water decreases the effectiveness of plant-based natural coagulants. The agitation and contact time show the importance of the coagulation process. The optimum turbidity removal rate in pH is 4, the contact time is 60 seconds and 3000 seconds for coagulation and flocculation, respectively, the agitation is 300 RPM and 30 RPM for coagulation and flocculation, and lastly, the dosage is 10 g of Moringa oleifera seed. Finally, the plant-based natural coagulants demonstrated the ability to remove turbidity and could be used in place of chemical coagulants.

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