Evaluation of eco-friendly coagulant from <i>Trigonella foenum-graecum</i> seed

Abstract

The ability of seed extracts of Trigonella foenum-graecum (T. foenum-graecum) and Cuminum cyminum (C. cyminum) to act as natural coagulants was tested using natural turbid water. Seed extracts were prepared using distilled water and NaCl (0.5 M and 1.0 M) solution. Only 1.0 M NaCl extract of T. foenum-graecum had coagulation capability and did not depend on pH values. Further it showed that natural coagulant obtained from T. foenum-graecum is temperature (up to 100˚C) and pH stable (pH 4.0 -10.0). Extract of C. cyminum had very minimal (16 ± 2) coagulation property. The seed extract of T. foenum-graecum showed about 80% coagulation properties, where as the best known natural coagulants such as Strychnos potatorum and Moringa oleifera, and chemical coagulant such as Al 2 (SO 4 ) 3 showed around 90%, 65% and 95% respectively, which are used as standards for the present study. When compared with pond water, T. foenum-graecum extract treated water shows decrease in alkalinity, turbidity, KMnO 4 demand and total coliform. This study reveals that seed extract of T. foenum-graecum can be used as natural water coagulant.

Use of Natural Coagulants for Primary Treatment of Dairy Wastewater Treatment- A Review

“…Maximum coagulation property is of Aluminum Sulphatei.e 90-97% as compare to natural coagulants T. foenum-graecum, Strychnospotatorum, Moringaoleifera and Aluminum Sulphate. After Aluminum Sulphate, T. foenumgraecum has good coagulation property which used for treatment of water and showed decrease in alkalinity, turbidity, KMnO 4 demand and total coliform [2].…”

“…The pods are non-toxic natural organic polymer and effective sorbent for the removal of organics and for coagulation of water treatment as ds contains naturalpolyelectrolyte. The best and efficient removal was observed at pH7.0-9.It is concluded that the MO seeds have the potential to be used in the dairy industry waste water treatment in an efficient way and with low cost.Chitteti Ramamurthy et al, (2012)[2]describes that the ability of seed extracts of Trigonellafoenumgraecum (T. foenum-graecum) and Cuminumcyminum (C. cyminum) to act as natural coagulants. These extracts tested using natural turbid water and prepared using distilled water and NaCl (0.5 M and 1.0 M) solution.…”

Utilization of plant-based natural coagulants as future alternatives towards sustainable water clarification

“…This could provide an overview on the structure and surface characteristics which may lead to better understanding on the bonding of colloidal particles (Idris et al, 2013). Ramamurthy et al (2012) Extensive studies to conclude the respective coagulation mechanism involved in each of the plant-based coagulants are also limited. The aggregation of colloidal particles leading to water clarification could be a result of one or more coagulation mechanisms.…”

Evaluación de la mezcla de un coagulante químico-natural en el proceso de clarificación de una ciénaga

“…Solo el 2,5% constituye la disponibilidad de agua dulce de la tierra, originando preocupación con respecto al uso y calidad del preciado líquido [2]. Su escases genera una vida más difícil, a pesar de la conciencia al respecto, son muy pocos los esfuerzos realizados para prevenir la contaminación de los recursos hídricos [3], [4]. Su deterioro, pérdida y demanda han aumentado en los últimos años debido a diversos factores, tales como: la sobreexplotación de tierras, el crecimiento poblacional, la expansión urbana, aumento de la actividad económica e industrialización [3], [5].…”

“…Su escases genera una vida más difícil, a pesar de la conciencia al respecto, son muy pocos los esfuerzos realizados para prevenir la contaminación de los recursos hídricos [3], [4]. Su deterioro, pérdida y demanda han aumentado en los últimos años debido a diversos factores, tales como: la sobreexplotación de tierras, el crecimiento poblacional, la expansión urbana, aumento de la actividad económica e industrialización [3], [5]. Diversas organizaciones internacionales realizan conferencias y campañas de concientización en donde el mensaje principal es el reconocimiento y aceptación del agua como un recurso finito que no puede caer en la dilapidación y abuso [1].…”