Electrochemical removal and recovery of humic-like substances from wastewater

Kliaugaitė, Daina; Yasadi, Kamuran; Euverink, Gert-Jan; Bijmans, Martijn F.M.; Račys, Viktoras

doi:10.1016/j.seppur.2013.01.055

Cited by 51 publications

(20 citation statements)

References 35 publications

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“…They found that a combination of EC with ultrafiltration can increase HAs rejection, reduces membrane fouling and decreases transmembrane pressure. Membrane electrolysis and electro‐coagulation were compared with regards to the removal of humic‐like substances in effluent from the paper and food industry by Daina Kliaugaite et al . They showed that the electro‐coagulation treatment was more efficient than membrane electrolysis in removing chemical oxygen demand and color.…”

Section: Introductionmentioning

confidence: 99%

Electrocoagulation and ultrasonic removal of humic acid from wastewater

Asgharian

Khosravi‐Nikou

Anvaripour

et al. 2016

Env Prog and Sustain Energy

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In the present research, electrocoagulation, ultrasonic, and simultaneous application of both methods were investigated to remove humic acid (HA) from wastewater. For the electrocoagulation method, the effects of five combinations of platinum, graphite, and aluminum electrodes, pH, time, voltage, temperature, and concentration of electrolyte on removal efficiency were evaluated. Results revealed that the combination of Pt (anode)/Al (cathode) at neutral pH, 10 V voltage, 0.02 M concentration of electrolyte support, and temperature of 25°C had the best removal efficiency. Under optimum conditions the maximum removal efficiency of HA at 15 min by Pt/Al and without ultrasonic wave was 96.5%. Finally, it was found when ultrasonic used simultaneously with electrocoagulation, the removal efficiency decreased drastically. © 2016 American Institute of Chemical Engineers Environ Prog, 36: 822–829, 2017

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Section: Introductionmentioning

confidence: 99%

Electrocoagulation and ultrasonic removal of humic acid from wastewater

Asgharian

Khosravi‐Nikou

Anvaripour

et al. 2016

Env Prog and Sustain Energy

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“…Membrane electrolysis and electrocoagulation were used for the removal and recovery of humic like substances from industrial secondary effluent [66]. Membrane electrolysis was suitable for the decolorization of colored wastewater but was less efficient in reducing COD than EC treatment.…”

Section: Bddmentioning

confidence: 99%

“…The operational costs for EC were also lower than for membrane electrolyses. Thus electrochemical methods proved an attractive alternative to other techniques, such as conventional coagulation and chemical oxidation [66].…”

Section: Bddmentioning

confidence: 99%

Natural organic matter (NOM) removal by electrochemical methods — A review

Särkkä

Vepsäläinen

Sillanpää

2015

Journal of Electroanalytical Chemistry

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“…Acid alkali extraction process was evaluated to extract humic acids from vegetable residues [7]. In recent times, nitric acid oxidation process using coal sample [8], Coacervate extraction using polyethoxylated alcohols and alkyl phenol polyethoxylate [9], electro coagulation process [10] were already performed during extraction of Humic acids form different sources. …”

Section: Introductionmentioning

confidence: 99%

Analysis of Fouling Characteristics and Flux Decline during Humic Acids Batch Ultrafiltration

Saha¹,

Das²

2015

J Chem Eng Process Technol

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This work focuses on the membrane ultrafiltration technique to separate humic acids from aqueous solution. An unstirred dead end ultrafiltration of synthetic aqueous humic acids solutions of 50, 150 and 250 mg L -1 was performed with Polyethersulfone membrane. To observe the effects of applied transmembrane pressure (TMP) drops during separation, the experiments were carried out at 207, 276, 345 and 414 kPa with 50 kDa molecular weight cutoff (MWCO) membrane. The performance of this process is expressed in terms of volume reduction factor (VRF). To analyze flux decline and pore blocking behavior, Hermia's fouling mechanism models, namely, complete, standard, intermediate and cake filtration models have been studied in search of best fittings in flux decline system. After completion of the experiment with 50 mg L -1 feed solution, the concentration of Humic acids in permeate was 2.9 mg L -1 , revealing 94% rejection during the membrane ultrafiltration. Keywords:

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Electrochemical removal and recovery of humic-like substances from wastewater

Cited by 51 publications

References 35 publications

Electrocoagulation and ultrasonic removal of humic acid from wastewater

Electrocoagulation and ultrasonic removal of humic acid from wastewater

Natural organic matter (NOM) removal by electrochemical methods — A review

Analysis of Fouling Characteristics and Flux Decline during Humic Acids Batch Ultrafiltration

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