Comparison of polyaluminum silicate chloride and electrocoagulation process, in natural organic matter removal from surface water in Ghochan, Iran

Mahvi, Amir Hossein; Malakootian, M; Heidari, M. R.

doi:10.3103/s1063455x11060051

Cited by 37 publications

(13 citation statements)

References 20 publications

(24 reference statements)

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“…More recently, the research to use biopolymers for coagulation-flocculation purposes has increased as these substances are natural low-cost products, not harmful for the environment and could be used in food processing operations (Renault et al, 2009;Fabris et al, 2010). Furthermore, there is a great amount of available technologies that are used or experimented with to remove COD and turbidity in water treatment including membrane processes, biodegradation (such as sequencing batch reactors, biological aerated filters, and membrane bioreactors), advanced oxidation processes, activated carbon, electrochemical oxidation, electrocoagulation, dissolved air flotation, and others (Stasinakis, 2008;Hyun Lee, 2009;Yoo Hsieh, 2010;Alvarez et al, 2011;Awang et al, 2011;Chen et al, 2011;Esparza-Soto et al, 2011;Gurel Buyukgungor, 2011;Mahvi et al, 2011).…”

Section: Process Parametersmentioning

confidence: 96%

Selection Criteria for Water Disinfection Techniques in Agricultural Practices

Haute

Sampers

Jacxsens

et al. 2013

Critical Reviews in Food Science and Nutrition

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This paper comprises a selection tool for water disinfection methods for fresh produce pre- and postharvest practices. A variety of water disinfection technologies is available on the market and no single technology is the best choice for all applications. It can be difficult for end users to choose the technology that is best fit for a specific application. Therefore, the different technologies were characterized in order to identify criteria that influence the suitability of a technology for pre- or postharvest applications. Introduced criteria were divided into three principal components: (i) criteria related to the technology and which relate to the disinfection efficiency, (ii) attention points for the management and proper operation, and (iii) necessities in order to sustain the operation with respect to the environment. The selection criteria may help the end user of the water disinfection technology to obtain a systematic insight into all relevant aspects to be considered for preliminary decision making on which technologies should be put to feasibility testing for water disinfection in pre- and postharvest practices of the fresh produce chain.

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Section: Process Parametersmentioning

confidence: 96%

Selection Criteria for Water Disinfection Techniques in Agricultural Practices

Haute

Sampers

Jacxsens

et al. 2013

Critical Reviews in Food Science and Nutrition

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“…Therefore, the removal of the dye from wastewaters is of great necessity. Removal of color is possible through various physical, chemical, biological methods or a combination of them [12].…”

Section: Introductionmentioning

confidence: 99%

Application of response surface methodology in the degradation of Reactive Blue 19 using H2O2/MgO nanoparticles advanced oxidation process

et al. 2018

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The release of dye containing effluent is a great threat to the world today. The purpose of this study is to optimize the removal of Reactive Blue 19 (RB19) dye from aqueous solutions using advanced oxidation process (AOP). Magnesium oxide nanoparticles (MgO NPs) and hydrogen peroxide (H 2 O 2 ) were used as the catalyst and oxidizer, respectively. Central composite design (CCD) based on response surface methodology (RSM) was applied for optimization of the AOP process. The effects of pH (3-7), molar H 2 O 2 /MgO NPs ratio (1-3), initial concentration of RB19 (20-80 mg/L), and contact time (30-90 min) were investigated on the oxidation process. The CCD was applied to determine the interactive effects of the process parameters and their optimum conditions. One-way analysis of variance (ANOVA) was applied for statistical data analysis. A quadratic model was generated by the CCD to represent the AOP on RB19 degradation. The experimental values obtained for percentage RB19 decolorization were found to be very close to the predicted response values. Based on the design, optimum conditions of pH 3, contact time of 60 min, RB19 concentration of 80 mg/L and H 2 O 2 /MgO NPs molar ratio of 3 were obtained which resulted in 93.77% RB19 removal. High value for the coefficient of determination, R 2 (0.912) and adjusted R 2 (0.805) showed that the removal of RB19 dye using AOP can be described by the RSM. The ANOVA results showed that the quadratic model developed from the RSM was statistically significant for RB19 decolorization. From the study, it could be concluded that the RSM can be a useful tool for optimization and moderation of the process parameters to maximize RB19 dye removal from aqueous solutions and the advanced H 2 O 2 /MgO NPs oxidation process.

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“…Therefore, NOM removal from waters is a challenging topic, and an efficient treatment process is required. Different technologies with varying degrees of success have been proposed for NOM removal include coagulation and flocculation ,electrocoagulation, ion exchange, adsorption, membrane technology, and advanced oxidation processes Mahvi et al, 2009;Mahvi et al, 2011;Moussavi et al, 2014;Rezaee et al, 2014;Sillanpää, 2015).…”

Section: Introductionmentioning

confidence: 99%

Humic acid removal from water using a novel fabricated antifouling carbon nanotube bucky - paper membrane and effect of operating parameters

Jafari¹,

Nasseri²,

Nabizadeh³

et al. 2017

Global NEST Journal

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acid removal from water using a novel fabricated antifouling carbon nanotube bucky -paper membrane and effect of operating parameters, Global NEST Journal, 19(2), 217-224.Humic acid removal from water using a novel fabricated antifouling carbon nanotube bucky -paper membrane and effect of operating parameters AbstractIn present work, a novel supported bucky paper (BP) membrane was fabricated and evaluated for humic acid (HA) removal from water. For better understanding the effect of operating variables, response surface methodology (RSM) was also applied. Three independent parameters namely TOC concentration (5, 10 and 15 mg l -1 ), operating time (10, 20 and 30 min) and transmembrane pressure (TMP) (1, 2 and 3 bar) were selected for TOC removal (%) and permeate flux analysis.The results revealed that the membrane could effectively remove HA primarily through electrostatic repulsion and then adsorption mechanisms. The study also showed that about 65% and 35% of the removed HA were through repulsion and adsorption mechanisms respectively. Based on analysis of variance (ANOVA), it was showed that the effect of TMP was strongly significant on the removal and flux (P-value <0.05). In addition, statistical test confirmed that RSM based on the Box-Behnken was a suitable method for optimizing the main operating variables for HA rejection using BP membrane (R In general, the synthesized BP membrane showed a relatively good rejection of HA and revealed antifouling properties over the filtration time.

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Comparison of polyaluminum silicate chloride and electrocoagulation process, in natural organic matter removal from surface water in Ghochan, Iran

Abstract: Removal of Natural Organic Matter (NOM)is one of the most important objectives of water treatment plants but reducing these pollutants either present in water as

Cited by 37 publications

References 20 publications

Selection Criteria for Water Disinfection Techniques in Agricultural Practices

Selection Criteria for Water Disinfection Techniques in Agricultural Practices

Application of response surface methodology in the degradation of Reactive Blue 19 using H2O2/MgO nanoparticles advanced oxidation process

Humic acid removal from water using a novel fabricated antifouling carbon nanotube bucky - paper membrane and effect of operating parameters

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