Evaluation of Three Natural Coagulant from Moringa Oleifera Seed for the Treatment of Synthetic Greywater

Abstract

The scarcity of water has become a growing problem worldwide. The search for new sources has therefore intensified, and one of these sources is greywater. The objective of this article is to evaluate the effectiveness of three different coagulants obtained from Moringa oleiferaseed (seed husk, ground seed, and degreased) in synthetic greywater. The methodology is planned in stages; in the first stage, these seeds were selected, unsheathed, and dried in the sun for 24 hours, and the coagulant was synthesized by a 1 M NaCl solution. In the second stage, the synthetic greywater was prepared in a laboratory and included personal cleaning products and additional chemical components. Finally, a statistical test was employed to evaluate the removal of turbidity and the incidence and behavior of the turbidity, pH, alkalinity, and dissolved oxygen over seven periods and the type of coagulant. It was found that the coagulant degreased obtained the highest percentage of removal (85%) and the coagulant from seed husk had the lowest efficiency with 75%. On the other hand, it was found that parameters such as pH and dissolved oxygen depend on the type of coagulant, while conductivity and alkalinity do not depend on time or the type of coagulant. Doi: 10.28991/CEJ-2022-08-12-013 Full Text: PDF

Turbidity Removal Performance of Selected Natural Coagulants for Water Treatment in Colombian Rural Areas

“…This level of efficiency is notable, especially in the context of treating waters with high turbidity levels. Furthermore, these findings are in accordance with those reported by Peña-Guzmán & Ortiz-Gutierrez [36], which reinforces the efficacy of Moringa Oleifera as a natural coagulant in water treatment applications.…”

“…According to the results of Peña-Guzman and Ortiz-Guiterrez [36], natural coagulant Moringa Oleifera, when processed without its shell and using a standardized treatment procedure, achieves a 79.13% turbidity reduction at an initial turbidity of 58 -62 NTU with an optimal dose of 17.5 mg/L. This substantial decrease in turbidity highlights Moringa's significant effectiveness as a natural coagulant.…”

Sediment Fungal Communities of Constructed Wetlands Dominated by Zizania latifolia and Phragmites communis and Their Effect on Organic Pollutant Removal

“…As an economical and ecological water treatment technology, constructed wetland (CW) has been widely used in organic pollutant removal [1,2]. Effective removal of organic pollutants can be achieved by a number of biotic and abiotic processes in CW including plant uptake [3][4][5], microbial degradation [6][7][8], substrate adsorption, filtration and precipitation [9][10][11]. As plants and microbes are indispensable components of CW and play key roles in strengthening its water purification functions [12][13][14][15], a deeper understanding of the relationship between wetland plant species and sediment microbial community and their combined effect on water purification efficiency should be of high value for optimizing both the design and performance of CW.…”