Removal of Abamectin Pesticide by Electrocoagulation Process Using Stainless Steel and Iron Electrodes

This study was intended to compare the performance of electrocoagulation process using aluminium and iron electrodes for glyphosate removal in aqueous solution. The effects of initial glyphosate concentration, electrocoagulation time and distance between electrodes, were discussed in detail. An electrocoagulation tank of 500mL with two metal plates electrodes, same in dimensions and metal types, was set up to perform batch mode laboratory experiment and the glyphosate in white powder was first diluted with deionized water. Production of metal cations showed an ability to neutralize negatively charged particles, which then encouraged to bind together to form aggregates of flocs composed of a combination of glyphosate and metal hydroxide. Compared with iron electrodes, aluminium electrodes were more effective for glyphosate removal, with a removal efficiency of over than 80%. This study revealed that electrocoagulation process using aluminium electrodes is reliable, especially designed for initial concentration 100 mg/L, electrocoagulation time 50 min, and distance between electrodes 6 cm. Finally, it can be concluded that electrocoagulation process using aluminium electrodes is efficient for glyphosate removal from aqueous environments.

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Investigation of Phenol Removal by Proxy-Electrocoagulation Process with Iron Electrodes from Aqueous Solutions

Journal of Human Environment and Health Promotion ◽

10.29252/jhehp.2.4.212 ◽

2017 ◽

Vol 2 (4) ◽

pp. 212-219

Author(s):

Ali Assadi ◽

Sevda Naseri ◽

Mehran Mohammadian Fazli ◽

◽

...

Keyword(s):

Aqueous Solutions ◽

Phenol Removal ◽

Iron Electrodes ◽

Electrocoagulation Process

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Pengaruh Waktu Proses pada Desalinasi Air Laut dengan Metode Elektrokoagulasi secara Batch

FLUIDA ◽

10.35313/fluida.v14i2.2828 ◽

2021 ◽

Vol 14 (2) ◽

pp. 65-72

Author(s):

Rifki Ardiansyah ◽

Triyoga Meiditama Putra ◽

Dian Ratna Suminar ◽

Agustinus Ngatin

Keyword(s):

Processing Time ◽

Raw Material ◽

Process Time ◽

Iron Electrodes ◽

Processing Times ◽

Fe Content ◽

Electrocoagulation Process ◽

Aluminum Electrodes ◽

A Current ◽

Better Than

ABSTRAK Salah satu upaya untuk menjaga persediaan air yaitu dengan cara menurunkan parameter air laut agar memenuhi parameter air tawar menggunakan metode elektrokoagulasi. Penelitian ini bertujuan untuk mempelajari pengaruh waktu proses elektrokoagulasi terhadap penurunan TDS, kekeruhan, kadar Cl, dan kadar Fe. Selain itu, untuk mengetahui perbandingan antara elektroda Al dan Fe. Air laut diambil dari Pantai Pelabuhan Ratu. Elektroda yang digunakan adalah Al dan Fe dengan ukuran 15x10 cm2. Tegangan yang digunakan yaitu 5 volt atau rapat arus sebesar 0,137 A/dm2 dengan waktu proses 15, 30, 45, dan 60 menit serta volume bahan bakunya 4 Liter. Penelitian dengan waktu proses 30 menit dan proses pengendapan selama satu hari mampu menurunkan kekeruhan hingga 2,28 NTU (55,07%); TDS hingga 1.010 mg/L (3,71%); kadar Cl hingga 271,98 mg/L (3,52%); dan kadar Fe 0,05 mg/L (40,65%). Proses elektrokoagulasi menggunakan elektroda aluminium lebih baik dibandingkan elektroda besi pada waktu proses 30 menit. ABSTRACT One of the efforts to maintain water supply is by lowering seawater parameters to meet freshwater parameters using the electrocoagulation method. This study aims to study the effect of electrocoagulation process time on the decrease in TDS, turbidity, Cl content, and Fe content. In addition, to determine the comparison between Al and Fe electrodes. Seawater is taken from Pelabuhan Ratu Beach. The electrodes used are Al and Fe with a size of 15x10 cm2. The voltage used is 5 volts or a current density of 0,137 A/dm2 with processing times of 15, 30, 45, and 60 minutes and the volume of the raw material is 4 liters. Research with a processing time of 30 minutes and sedimentation for one day was able to reduce turbidity up to 2,28 NTU (55,07%); TDS up to 1.010 mg/L (3,71%); Cl content up to 271,98 mg/L (3,52%); and Fe content of 0,05 mg/L (40,65%). The electrocoagulation process using aluminum electrodes was better than iron electrodes at a processing time of 30 minutes.

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Effect of various parameters in removing Cr and Ni from model wastewater by using electrocoagulation

Global NEST Journal ◽

10.30955/gnj.001077 ◽

2013 ◽

Vol 15 (4) ◽

pp. 494-503 ◽

Cited By ~ 13

Keyword(s):

Removal Rate ◽

Initial Value ◽

Effective Surface ◽

Initial Concentration ◽

Iron Electrodes ◽

Electrode Combination ◽

Initial Ph ◽

Electrocoagulation Process ◽

Aluminum Electrodes ◽

A Current

<p>The performance of a laboratory scale electrocoagulation system for the removal of Cr and Ni from model wastewater was studied systematically using iron and aluminum electrodes with an effective surface area of 13.8 cm2 and a distance of 4 cm. The influence of several parameters, such as initial concentration, electrode combination, current supply and initial pH was investigated during electrocoagulation process. The increase in initial concentration favored removal rate, did not affect nickel removal, but restricted chromium removal, thus indicating its required mechanism of reducing hexavalent ion to trivalent. The best removal efficiency, when metals existed separately in treated solutions, was accomplished with the use of iron electrodes for Cr (50%) and with aluminum electrodes for Ni (90%). When metals co-existed, iron electrodes achieved the best result, which was 76% for Cr and 82% for Ni, leaving 30 mg l-1 and 17 mg l-1 of residual concentrations, respectively, after 180 min of treatment. Solutions’ nominal pH appeared to be optimal, since increasing or decreasing their initial value did not benefit the electrocoagulation process. Chromium and nickel simultaneous removal was best achieved for conditions of 100 mg l-1 initial concentration, pH 5 and a current of 0.8 A.</p>

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Removal of Cadmium and Zinc Contaminations in Landfill Leachate by Using Electrocoagulation Process

Materials Science Forum ◽

10.4028/www.scientific.net/msf.857.519 ◽

2016 ◽

Vol 857 ◽

pp. 519-523 ◽

Cited By ~ 1

Author(s):

Mohamad Fared Murshed ◽

Mohd Khairul Nizam Mahmad ◽

M.A.Z. Mohd Remy Rozainy ◽

Ismail Abustan ◽

Norlia Baharun

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Stainless Steel ◽

Electrolyte Solution ◽

Landfill Leachate ◽

Metal Removal ◽

Stainless Steel Electrode ◽

Steel Electrode ◽

Initial Ph ◽

Electrocoagulation Process

The research works involve the study of removal of cadmium and zinc contaminations in landfill leachate by electrocoagulation process. This project focused on leachate landfill from Pulau Burung, Nibong Tebal, Penang as an electrolyte solution. Heavy metals are the main factor contributing to pollution in leachate landfill. Types of electrodes used in this study were aluminium (grade 5052) and Stainless Steel (grade 316). The ranges of initial pH applied were pH (3, 4, 5, 6 and 7) and voltages applied were 1.5V, 2.0V and 2.5V. At the end of electrocoagulation process, the solutions were stored and analysed usingatomic absorption spectroscopy (AAS) to determine the final concentration of electrolyte solution. It was found difference electrodes have difference effectiveness in removing heavy metals, relies on the types of electrodes (aluminium or stainless steel) and also types of heavy metals that were being treated. The initial pH also gives the significant effect to removal of heavy metal and the maximum voltages give higher removal of heavy metal. Removal of cadmium and zinc by stainless steel electrode was more effective than aluminium electrodes at voltage of 2.5V. The removal using stainless steel was 22.45% and 97.54% respectively. For removal using aluminium electrodes 18.37% and 92.12% respectively. It was found that the maximum voltages give higher removal of heavy metal for all removal of cadmium and zinc. The removal maximum when the applied voltage was 2.5V and minimum at 1.5V.

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Electrochemical treatment of colour index reactive orange 84 and textile wastewater by using stainless steel and iron electrodes

Environmental Progress & Sustainable Energy ◽

10.1002/ep.10601 ◽

2011 ◽

Vol 32 (1) ◽

pp. 60-68 ◽

Cited By ~ 28

Author(s):

Ebubekir Yuksel ◽

Murat Eyvaz ◽

Ercan Gurbulak

Keyword(s):

Stainless Steel ◽

Textile Wastewater ◽

Electrochemical Treatment ◽

Colour Index ◽

Iron Electrodes ◽

Reactive Orange

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TREATMENT OF SERVICE STATION WASTEWATER USING ELECTROCOAGULATION PROCESS

International Journal of Research -GRANTHAALAYAH ◽

10.29121/granthaalayah.v5.i7.2017.2140 ◽

2017 ◽

Vol 5 (7) ◽

pp. 348-353

Author(s):

Krishna M. K ◽

Manjunath H.N ◽

Ayesha Siddiqa

Keyword(s):

Stainless Steel ◽

Removal Efficiency ◽

Iron Electrode ◽

Electrode Spacing ◽

Electrolysis Time ◽

Constant Voltage ◽

Oil And Grease ◽

Initial Ph ◽

Electrocoagulation Process ◽

Electro Coagulation

The various electrodes such as iron, aluminium, stainless steel and graphite are used in this study. Main objectives of the present paper is to evaluate the removal of COD, pH, TDS and oil and grease from the automobile wastewater by Electro coagulation using iron as Monopolar configuration at different voltages and electrolysis time. To study the effect of inter electrode spacing and effect of different initial pH for the removal of selected parameter at constant voltage for the iron electrode. The removal efficiency decreases with increase in electrode spacing as 71.2% of COD, 96.5% of TDS and 88.76% of oil and grease removal was achieved with iron electrode.

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