Removal of Turbidity, Suspended Solids and Ions of Fe from Aqueous Solution using Okra Powder by Coagulation-Flocculation Process

Abstract

This work evaluates the efficiency of okra powder in removing turbidity, suspended solids and ions of Fe from synthetic raw water through coagulation-flocculation process. The raw water samples with initial turbidity of 100 NTU were prepared using natural red clay (-32+100 mesh particle size). The jar tests were carried out by varying the pH and the dose of okra powder. The initial pH 8.0 of synthetic raw water and 30 mgL -1 okra powder caused 80.92% reduction of Fe ions and 99% turbidity removal after 10 minutes of sedimentation. The efficiency of Fe the removal was evaluated by characterization EDX sludge formed after sedimentation with and without okra powder and the jar tests were carried out using a solution of ferric sulfate as the coagulating agent.

Optimization of coagulation-flocculation process for treatment of industrial textile wastewater using okra (A. esculentus) mucilage as natural coagulant

“…The adsorption of colloidal particles on the surface of polymers occurs by Coulombic interaction (charge-charge) through hydrogen bonds, van der Waals interactions or their combination (Jesus et al, 2013). The molecular interactions associated with adsorption and bridging in coagulation are shown in Fig.…”

“…The absorption peaks around 1200-950 cm −1 are considered characteristic polysaccharide bands. They indicate the presence of C O bonding of alcohol, ether, etc., assigned to the vibration of axial deformation of the C O of alcohol and the vibration of axial deformation of O C O systems (Jesus et al, 2013).…”

A Kinetic Investigation of the Pulverized Okra Pod Induced Coag-Flocculation in Treatment of Paint Wastewater

“…The suspension was passed through a filter paper (Whatman No 42). The filtrate portion was used as coagulant in treating paint wastewater [6] [28]. The characteristics of the Okra pod on the bases of [29] standard method are presented in Table 2.…”

Effect of Dehydration Methods on Okra Chemical and Physical Composition

“…Okra (Abelmoschus esculentus (L.) Moench), belonging to the Malvaceae family, is a commercially important plant native to Africa, and its cultivation is expanding in almost all tropical and subtropical areas of the world (Lengsfeld et al, 2004;Jesus et al, 2014). In Brazil, okra was introduced with the slave trade and spread to all regions of the country, especially in the northeast and southeast, which have a very favorable climate for its development (Jain et al, 2012;Zheng et al, 2014).…”