Optimisation of using a blend of plant based natural and synthetic coagulants for water treatment: (Moringa Oleifera-Cactus Opuntia-alum blend)

Gandiwa, Bruce I.; Moyo, L.B.; Ncube, Sokesimbone; Mamvura, Tirivaviri A.; Mguni, Liberty L.; Hlabangana, N.

doi:10.1016/j.sajce.2020.07.005

Cited by 49 publications

(24 citation statements)

References 6 publications

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“…To analyze the coagulating efficiency of the combined extract of Moringa oleifera , we estimated the levels of several quality parameters in treated water samples, including physicochemical and biological parameters. Recent experimental findings have reported that the use of alum in water treatment operations resulted in an altered pH, whereas the pH of water treated with Moringa oleifera extracts remains unaffected [ 36 , 37 ]. Our study also corroborated these findings and showed that treatment with the combined extract of Moringa oleifera resulted in a reduction of the pH to its normal value, as per the WHO standards (6.0–8.5).…”

Section: Discussionmentioning

confidence: 99%

Study to Investigate the Potential of Combined Extract of Leaves and Seeds of Moringa oleifera in Groundwater Purification

Alam

Pandey²,

Khan³

et al. 2020

IJERPH

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Several parts of the Moringa oleifera plant have revealed incredible potential for water quality improvement. However, the purification potential of a combined leaf and seed extract of Moringa oleifera plants remains unexplored. To the best of our knowledge, this research would be the first to work towards exploiting the combined potential of a leaf and seed extract of the Moringa oleifera plant in the process of water purification. In this study, we investigated the combined effectiveness of the leaf and seed extract in the purification of groundwater. The jar test method was used to analyze the effectiveness of Moringa plant extract (in combination) on different quality parameters of groundwater. Treatment with the combined plant extract (seed and leaf) resulted in significant improvement of various physicochemical (hardness, pH, turbidity, Total Dissolved Solid (TDS), and metallic impurities) and biological parameters (E.coli count) over individual seed and leaf extracts in groundwater samples. Experimental findings have strongly shown the enhanced purification efficacy of the hexane extract of combined plant materials in comparison to the individual extracts, thereby providing us with a potent natural coagulant that could combat the side effects of chemical coagulants.

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Section: Discussionmentioning

confidence: 99%

Study to Investigate the Potential of Combined Extract of Leaves and Seeds of Moringa oleifera in Groundwater Purification

Alam

Pandey²,

Khan³

et al. 2020

IJERPH

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“…This result is comparable to that obtained by Birima et al [17] in which the coagulant extracted from peanut seeds was able to achieve a removal efficiency of 92 per cent from synthetic water with an initial turbidity of 200 NTU. Moreover, the increase in turbidity beyond the optimum dose interpreted to re-stabilize destabilized, moreover, the coagulant itself (at high concertation) increases the turbidity [6,19].…”

Section: Potential Of Peanut Cake In Coagulation Of Turbid Watermentioning

confidence: 99%

“…Therefore, treatment and purification of water from surface bodies is vital to meet the required limits for drinking water. Various purification techniques are applied, selection of each depends on the characteristics of water to be treated [6]. The purification process basically accomplished via coagulation and sedimentation processes, to allow dissolved impurities and colloidal particles to settled down by gravity; thus removing the turbidity.…”

Section: Introductionmentioning

confidence: 99%

“…The individual particles remain suspended due to their electrical negatively charges that make them repel each other. This is the reason led to the development of a process called coagulation, which used as preparation for sedimentation process [6].…”

Section: Introductionmentioning

confidence: 99%

“…Organic coagulants include the polyDADMAC (polydiallyldimethyl ammonium chloride) range of cationic polymers and Chitos; whereas, inorganic coagulants refer to the common chemicals that base on metals which basically aluminium or iron salts, such as ferric chloride, alum, calcium hydroxide ferrous sulphate, polyelectrolytes etc. [6]. The most widely used coagulant in developing countries is alum (aluminum sulphate) because of its high efficiency of turbidity removal.…”

Section: Introductionmentioning

confidence: 99%

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The Effect of the Operational Parameters on Turbidity Removal Using Peanut Cake as Primary Coagulant

Birima¹

2021

IJDNE

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The drawbacks associated with traditional chemical coagulants used in water treatment, such as health-related and environmental adverse effects, have encouraged the search for natural alternatives, in particular plant-based coagulants. This study investigated the effect on turbidity removal of synthetic turbid water prepared by adding kaolin to distilled water of various operating parameters, namely the initial turbidity of the raw water, rapid mixing time and slow missing time. A plant-based, which was extracted from peanut cake, was used. Using Minitab tools, experiments were planned. Three levels were tested for each of the aforementioned parameters, namely 50, 100 and 150 NTU for initial turbidity; 1, 2 and 3 minutes for rapid mixing; and 15, 20 and 25 minutes for slow mixing. The results showed that the coagulant has a high ability to remove turbidity, with the removal percentage varying from 70% to 95%. A one-way ANOVA showed a significant impact on the turbidity removal of each individual parameter. In addition, it revealed that there was a significant interaction between the initial turbidity and slow mixing time, and that of the rapid mixing time and slow mixing time. On the other hand, significant effect was also shown by the three-way interactions between the three parameters.

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Generalities of the Coagulation-Flocculation Process: A Perspective on Biocoagulants

Loor-Moreira

Fernández-Andrade

Cedeño-Solórzano³

et al. 2021

Innovations in Biotechnology for a Sustainable Future

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Optimisation of using a blend of plant based natural and synthetic coagulants for water treatment: (Moringa Oleifera-Cactus Opuntia-alum blend)

Cited by 49 publications

References 6 publications

Study to Investigate the Potential of Combined Extract of Leaves and Seeds of Moringa oleifera in Groundwater Purification

Study to Investigate the Potential of Combined Extract of Leaves and Seeds of Moringa oleifera in Groundwater Purification

The Effect of the Operational Parameters on Turbidity Removal Using Peanut Cake as Primary Coagulant

Generalities of the Coagulation-Flocculation Process: A Perspective on Biocoagulants

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