Impact of Current Density, Operating Time and pH of Textile Wastewater Treatment by Electrocoagulation Process

Hossain, Milon; Mahmud, Md. Iqbal; Parvez, Md. Shohan; Cho, Haeng Muk

doi:10.4491/eer.2013.18.3.157

Cited by 36 publications

(16 citation statements)

References 19 publications

(21 reference statements)

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“…With an iron anode, ferrous or ferric hydroxide is formed at the anode. Murthy and Raina (2008) and Hossain et al (2013) reported the reaction mechanism of the iron electrode at the anode and cathode. The increasing in current density produces heavier and larger flocs (Yengejeh et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

“…The increasing in current density produces heavier and larger flocs (Yengejeh et al, 2017). The effect of current density on pollutants removal was due to the higher amounts of ions produced on the electrodes promoting destabilization of the pollutant molecules (Hossain et al, 2013). The effect of contact (operating) time on the electrocoagulation process maybe attributed to the two stages involved in electrocoagulation process.…”

Section: Resultsmentioning

confidence: 99%

“…Metal ions (iron and aluminum) as destabilization agents are produced at anode thorough electrochemical reactions which result in a low charge loading when the contact time is shortened. The metal ions dosage was not sufficient to stabilize all colloidal and suspended particles (Shammas et al, 2010;Hossain et al, 2013). Merzouk et al (2009), El-Ashtoukhy et al 2010and Parsa and Vahidian (2011) reported that the contact time should not be more than 60 min because of economic reasons and formation of many clots.…”

Section: Resultsmentioning

confidence: 99%

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Application of iron and aluminum electrodes for wastewater treatment via electrocoagulation

2019

Aust. J. Basic & Appl. Sci

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The present study deals with the possibility of using iron and aluminum monopolar electrodes for raw domestic wastewater treatment under different treatment conditions. Wastewater samples were collected from Abu Rawash wastewater treatment plant, Egypt. A mini model was constructed for the treatment process. Experiments were carried out using iron and aluminum electrodes separately and for each type at different distances between electrodes (10 and 15 cm). Different factors were studied to enhance the electrocoagulation treatment process which include sedimentation period (3 and 5 h), different electrocoagulation periods (30 and 60 min), and different electrical voltages (12 and 24 V). Alum was used as a coagulant and the final effluent was disinfected with chlorine. The results showed that iron electrodes were more effective than aluminum electrodes for treatment and the distances between electrodes have played a role in the treatment process since 10 cm was more effective than 15 cm. Iron electrodes with 10 cm distance between electrodes showed the maximum removal percent of physicochemical parameters such as TSS (94.2%), COD (90.1%), TKN (89.3%), BOD (95.1%) and total phosphorus (83.3%). Alum enhanced the treatment efficiency and the final chlorinated effluent was in comparable with the local laws for reuse purposes.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Application of iron and aluminum electrodes for wastewater treatment via electrocoagulation

2019

Aust. J. Basic & Appl. Sci

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“…Chl a concentrations were determined by fluorometry (excitation wave length: 470 nm) after filtration onto Whatman GF/F filters and methanol extraction (Holm-Hansen et al 1965). The chemical oxygen demand (COD) was estimated using potassium permanganate as oxidizing agent (Hossain et al 2013). Salinity and temperature were measured in situ, 1 m above the corals species, using a CTD probe (SBE 19+, Sea-Bird Electronics).…”

Section: Physicochemical Parametersmentioning

confidence: 99%

Coral-associated viruses and bacteria in the Ha Long Bay, Vietnam

Thuộc

Bui

Nguyen

et al. 2015

Aquat. Microb. Ecol.

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Viruses inhabiting the surface mucus layer of scleractinian corals have received little ecological attention so far. Yet they have recently been shown to be highly abundant and could even play a pivotal role in coral health. A fundamental aspect that remains unresolved is whether their abundance and diversity change with the trophic state of their environment. The present study examined the variability in the abundance of viral and bacterial epibionts on 13 coral species collected from 2 different sites in the Ha Long Bay, Vietnam: one station heavily affected by anthropogenic activity (Cat Ba Island) and one protected offshore station (Long Chau Island). In general, viral abundance was significantly higher in coral mucus (mean = 10.6 ± 2.0 × 10 7 viruslike particles ml-1) than in the surrounding water (5.2 ± 1.3 × 10 7 virus-like particles ml-1). Concomitantly, the abundance and community diversity (inferred from phylogenetic and morphological analyses) of their mucosal bacterial hosts strongly differed from their planktonic counterparts. Surprisingly, despite large differences in water quality and nutrient concentrations between Cat Ba and Long Chau, there were no significant differences in the concentrations of epibiotic viruses and bacteria measured in the only 2 coral species (i.e. Pavona decussata and Lobophyllia flabelliformis) that were common at both sites. The ability of corals to shed bacteria to compensate for their fast growth in nutrient-rich mucus is questioned here. KEY WORDS: Viruses • Coral-associated bacteria • Mucus • Symbionts • Coral reefs Resale or republication not permitted without written consent of the publisher This authors' personal copy may not be publicly or systematically copied or distributed, or posted on the Open Web, except with written permission of the copyright holder(s). It may be distributed to interested individuals on request.

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“…The efficiency of EC is influenced by wastewater type, pH, current density, type of metal electrodes used (aluminum, steel, iron), number of electrodes, size of elec-trodes, and configuration of metals ( Hossain et al, 2013). The present study was undertaken to study the efficiency of aluminum (Al) and iron (Fe) electrode combinations in removing colour, turbidity (TD) and total suspended solids (TSS) from biologically treated municipal wastewater (BTMW) at different operating conditions such as applied potential, operating time, electrode area and pH.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of aluminum and iron electrodes in removal of colour, turbidity and total suspended solid from biologically treated municipal wastewater

Sharma

Chopra

2015

JANS

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The present investigation was undertaken to observe the effect of different combinations of almunium and iron (Al-Al, Al-Fe, Fe-Fe and Fe-Al) electrodes on the removal of colour, turbidity (TD) and total suspended solids (TSS) of biologically treated municipal wastewater ( BTMW) using applied potential (V), operating time (OT) and initial pH. The maximum removal of colour (98.7 %) and TSS (96.89 %) was found with the use of Al-Al combination with optimum operating conditions (Voltage: 40 V; OT: 40 mins.; IED: 1.0 cm; EA: 160 cm 2 ; initial pH: 7.5 and ST: 30 mins). It was interesting to note that TD of BTMW was completely removed at these optimal operating conditions. The economic evaluation of electrode combinations was observed to be in the order of Fe-Al

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Impact of Current Density, Operating Time and pH of Textile Wastewater Treatment by Electrocoagulation Process

Cited by 36 publications

References 19 publications

Application of iron and aluminum electrodes for wastewater treatment via electrocoagulation

Application of iron and aluminum electrodes for wastewater treatment via electrocoagulation

Coral-associated viruses and bacteria in the Ha Long Bay, Vietnam

Efficiency of aluminum and iron electrodes in removal of colour, turbidity and total suspended solid from biologically treated municipal wastewater

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