Effect of natural coagulant application on microfiltration performance in treatment of secondary oxidation pond effluent
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Cited by (25)
Hybrid treatment of coagulation/flocculation process followed by ultrafiltration in TIO <inf>2</inf> -modified membranes to improve the removal of reactive black 5 dye
2019, Science of the Total EnvironmentCitation Excerpt :At the end of sedimentation, the remaining particles presented PDI smaller than 0.5, indicating a more homogeneous suspension. Although the volume of sludge generated after the CF process has not been evaluated in this study, data in the literature indicates that the volume of sludge generated is significantly lower when the extract of MO is used as a coagulant, especially when compared to coagulants derived from salts of aluminum (Katayon et al., 2007). This fact positively influences subsequent processes such as membrane filtration and contributes to minimize the problems related to the disposal of residual sludge.
Sludge dewaterability by dual conditioning using Fenton's reagent with Moringa oleifera
2019, Journal of Environmental Chemical EngineeringCitation Excerpt :This is expected to yield a conditioning more cost-effective, efficient in sludge dewaterability and environment-friendly. Hence, two popular reagents that have been recently successfully applied were chosen for this purpose, namely Fenton and MO [15–19]. The ensuing dewatering behavior was then characterized along with the floc strength, emphasizing the changes occurring in EPS.
Performance of different coagulants in the coagulation/flocculation process of textile wastewater
2019, Journal of Cleaner ProductionCitation Excerpt :The authors verified that as long as the pH of the reaction increased, the turbidity removal efficiency decreased. According to Table 1, the initial turbidity value of the effluent (66.8 NTU) and its low removal efficiency (Fig. 3b) confirmed the observations of Muyibi and Evison (1995) and Katayon et al. (2007), who attribute this behaviour to a low rate of inter-particle contact of MO and the particles in the reaction medium, reducing flake formation and its sedimentation. In Fig. 3c–d, the removals of the RP-HE7B and OP-HER dyes with MO-NaCl were higher when compared to the MO-KCl coagulant.
Effect of humic acids on the kaolin coagulation performance of Moringa oleifera proteins
2018, Journal of Environmental Chemical EngineeringComparative coagulation performance study of Moringa oleifera cationic protein fractions with varying water hardness
2016, Journal of Environmental Chemical EngineeringCitation Excerpt :The solids are filtered from the liquid, and the clarified extract is then added to water that needs to be treated [10]. The cationic proteins have been found to reduce water turbidity 50–99.5% depending on initial turbidity [11–22]. Additionally, the cationic proteins produce 1–4 log reductions in microbial populations [21,23–25].
Hybrid ozonation-microfiltration system for the treatment of surface water using ceramic membrane
2014, Journal of Membrane ScienceCitation Excerpt :The new approach for addressing these issues is focused on coupling the membrane process with another water treatment method in a hybrid process that can take place simultaneously. Attempts have been made to combine membrane filtration with treatment processes, such as coagulation [10–12], flocculation [13], activated carbon adsorption [14] or Advanced Oxidation Processes [15], where the specific effect of every mentioned water treatment process on the pollutants present in the treated water is expected to limit the membrane fouling and improve the permeate quality. Among the AOPs, ozonation has been successfully applied in drinking water treatment for the removal of color, odor and for disinfection, due to the high oxidative capacity of ozone.