Use of natural mucilage extracted from the Stenocereus griseus (Cardón Guajiro) plant as a coagulant in the treatment of domestic wastewater

Dunoyer, Arnulfo Antonio Tarón; Cuello, Rafael Emilio González; Colpas-Castillo, Fredy

doi:10.4136/ambi-agua.2705

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…Picea abies 1442 -2650 mg/l 25.2 90% [31] Cereus jamacaru 1 g/l 5 90% [11] Cactus Opuntua Aloe barbadensis 25 g/l 186.8 72% [36] Manihot esculenta 20 mg/l 62 70% [37] Cassia fistula 160 mg/l 95 68.15% [38] Stenocereus griseus 1400 mg/l 29.57 67.24% [39] Coffea 10 g/l 155 64.29% [40] Persea americana 44.27% Comparación entre coagulantes naturales y sulfato de aluminio De acuerdo a la Tabla y Figura anterior, según [24] afirmaron que los coagulantes naturales a base de almidón de sagú y quitina aportan porcentajes de remoción de turbidez semejantes sulfato de aluminio, siendo el nivel de remoción (69,15%, 67,73% y 78.72%) respectivamente.…”

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A systematic review. Efficacy of natural coagulants in the treatment of domestic wastewater.

Alcántara Llovera,

Silva Chuquipoma

2023

Proceedings of the 21th LACCEI International Multi-Conference for Engineering, Education and Technology (LACCEI 2023): “Leaders

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The objective of this article was to describe the efficacy of natural coagulants, as well as to explain their removal power compared to aluminum sulfate and to identify the best natural coagulant for turbidity removal in domestic wastewater treatment; For this, a qualitative research design was followed, collecting 50 articles, using inclusion and exclusion criteria. As results, the natural coagulants showed a great efficiency in the reduction of turbidity, varying from 23.07% to 98.69%, likewise there is a similarity between the natural coagulants and aluminum sulfate, being the most advantageous and natural ones. at the same time, it was recognized that Moringa Oleífera is the most effective in removing turbidity. In Conclusion, natural coagulants reduceturbidity between 23.07% and 99.60%, in turn, natural coagulants and alum have a high similarity, with turbidity levels between 53.85% and 99.44%. and 70%. at 98.69%, finally, Moringa Oleífera, eliminates higher levels of turbidity, with values between 53.85% and 99%.

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Section: Resultados Y Discusiónunclassified

A systematic review. Efficacy of natural coagulants in the treatment of domestic wastewater.

Alcántara Llovera,

Silva Chuquipoma

2023

Proceedings of the 21th LACCEI International Multi-Conference for Engineering, Education and Technology (LACCEI 2023): “Leaders

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Effect of Moringa oleifera Seeds Powder on Metallic Trace Elements Concentrations in a Wastewater Treatment Plant in Senegal

Sané,

Mbengue,

Ndoye

et al. 2024

IJERPH

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A wastewater treatment plant (WWTP) prototype coupled with Moringa oleifera seeds (MOSs) was developed to evaluate its effectiveness to reduce metallic trace elements (MTEs) in domestic wastewater. The WWTP is composed of a septic tank (F0) where wastewater is treated by biological processes under anaerobic conditions, followed by a bacterial filter (F1) where wastewater is filtered under aerobic conditions, followed by an infiltration well (F2), which provides additional filtration of wastewater before discharge into the soil. MTEs present in waters can bind with humic substances contained in colloid particles and then be eliminated by coagulation–flocculation with a cationic polyelectrolyte. MOSs contain positively charged cationic polymers that can neutralize the colloids contained in waters, which are negatively charged. Based on this observation, 300 mg·L−1 of MOS was added into F0, 50 mg·L−1 into F1, and 50 mg·L−1 into F2 mg·L−1. MOS activation in samples was performed by stirring rapidly for 1.5 min, followed by 5 min of gentle stirring and 3 h of settling. The data analysis shows that wastewater samples had significant concentrations of MTEs, particularly for Cu, Ni, Sr, and Ti, and sediment samples had high amounts of Cr, Cu, Ni, Sr, Ti, and V. The addition of MOS to F0, F1, and F2 samples resulted in reductions in MTE concentration of up to 36%, 71%, 71%, 29%, 93%, 81%, 13%, 52%, and 67% for Co, Cr, Cu, Ni, Pb, Se, Sr, Ti, and V, respectively. The quantified MTEs (As, Co, Cr, Cu, Ni, Pb, Se and V) in treated samples were reported to be lower than UN-EP standards for a safe reuse for irrigation and MOS proved to be as effective as chemical coagulants such as lime and ferric iron for the removal of MTEs contained in wastewater. These results highlight the potential of MOSs as natural coagulants for reducing MTE content in domestic wastewater. This study could be the first to evaluate the effectiveness of MOS in reducing 10 MTEs, including As, Co, Se, Sr, Ti, and V, which are currently understudied. It could also provide a better understanding of the origin of MTEs found in domestic wastewaters and how an effective treatment process can result in high-quality treated wastewaters that can be reused for irrigation without posing health or environmental risks. However, more research on MOSs is needed to determine the type and composition of the coagulant substance found in the seeds, as well as the many mechanisms involved in the decrease in MTEs by MOSs, which is currently understudied. A better understanding of MOS structure is required to determine the optimum alternative for ensuring the optimal effect of MOS paired with WWTP in removing MTEs from domestic wastewaters.

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Use of natural mucilage extracted from the Stenocereus griseus (Cardón Guajiro) plant as a coagulant in the treatment of domestic wastewater

Cited by 2 publications

References 16 publications

A systematic review. Efficacy of natural coagulants in the treatment of domestic wastewater.

A systematic review. Efficacy of natural coagulants in the treatment of domestic wastewater.

Effect of Moringa oleifera Seeds Powder on Metallic Trace Elements Concentrations in a Wastewater Treatment Plant in Senegal

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