Removal of total organic carbon from peat solution by hybrid method—Electrocoagulation combined with adsorption

Myllymäki, Pekka; Lahti, Riikka; Romar, Henrik; Lassi, Ulla

doi:10.1016/j.jwpe.2018.05.008

Cited by 37 publications

(9 citation statements)

References 36 publications

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“…Electrocoagulation method (EC) has recently brought a big deal of attention as an effective method to remove microorganisms from wastewater and water because of its simplicity, selectivity, and relatively low operating cost [17][18][19]. Additionally, the EC technology does not need chemical additives to achieve the treatment process, and it could be easily automated and integrated with other treatment units [20][21][22]. Furthermore, EC method significantly minimises the volume of the generated solid waste (sludge) that requires high treatment cost [23,24], which in turn significantly minimises the operational cost of the EC method.…”

Section: Introductionmentioning

confidence: 99%

Energy efficient electrocoagulation using baffle-plates electrodes for efficient Escherichia coli removal from wastewater

Hashim

Kot

Zubaidi

et al. 2020

Journal of Water Process Engineering

122

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A new electrocoagulation reactor (EC), which utilises the concepts of baffle-plates, has been applied to remove Escherichia coli (E. coli) from wastewater. This new aluminium-based EC reactor utilises perforated baffle-plates electrodes to mix water, which reduces the need for mechanical or magnetic mixers that require extra power to work.This new reactor has been used to treat E. coli containing wastewater samples, considering the effects of different parameters such as treatment time (TT), inter-electrode distance (IED), and current density (CD). A statistical analysis has also been commenced to evaluate the influence of each parameter on the removal of E. coli. Additionally, an economic study has been conducted to assess the operating cost of the new reactor. The outcomes of the experimental work confirmed that the new reactor removes as high as 96% of the E. coli within 20 minutes of electrolysis at IED of 0.5 cm, and CD of 1.5 mA/cm 2 . Additionally, it has been found that the operating cost of the new reactor is 0.11 US $/m 3 (for E. coli removal), which is less than operating cost of traditional reactors. Finally, it has been found that the effect of the studied parameters on E. coli removal followed the order: TT > CD > IED.

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Section: Introductionmentioning

confidence: 99%

Energy efficient electrocoagulation using baffle-plates electrodes for efficient Escherichia coli removal from wastewater

Hashim

Kot

Zubaidi

et al. 2020

Journal of Water Process Engineering

122

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“…Pada kondisi tegangan 30 V, waktu adsorpsi 45 menit, serta dosis adsorben 5 g/L. Kombinasi metode elektrokoagulasi dan absorpsi dapat meningkatkan efisiensi penyisihan Pb(II) hingga 95% jika dibandingan dengan mengunakan satu metode guna menurunkan kandungan polutan pada air limbah (Myllymäki, 2018).…”

Section: Gambar 2 Spektra Ftir Karbon Aktif Sebelum Dan Setelah Aktiunclassified

Treatment of Pb(II) Metal in Wastewater Using Combination Method of Electrocoagulation − Activated Carbon Adsorption

Setiawan¹,

Ramadani²,

Hanastasia³

2020

J. Presipitasi

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Metal Pb(II) is one of the pollutants that causes water pollution and impacts ecosystem damage. Pb(II) metal waste is toxic and biomagnification, so it harms human health. The combination of electrocoagulation and adsorption processes is an efficient and effective alternative in removing Pb(II) metal in wastewater. In this study, the wastewater treatment process is carried out in batch using electrocoagulation with aluminum electrodes and followed by activated carbon adsorption. This research aimed to analyze the effect of electrical voltage in electrocoagulation, adsorption time, and adsorbent dose on reducing Pb(II) concentration. Electrocoagulation and adsorption processes were used variations of electrical voltage (10, 20, 30 V), adsorption times (15, 30, 45 minutes), and adsorbent doses (2,5, 3,3, 4,1, 5 g/L). The research showed that the combination of electrocoagulation and adsorption could significantly reduce Pb(II) concentration in wastewater. Increased electrical voltage, adsorption time, and adsorbent dose lead to increased Pb(II). The maximum removal efficiency of Pb(II) metal was obtained under voltage of 30 V, 45 minutes adsorption time, and 5 g/L adsorbent dose. This condition resulted in removal efficiency Pb(II) of 96,01%.

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“…Iron salts were hydrolyzed in water to produce insoluble precipitates, which then adsorb on the surface of the particles, destabilizing their charge. Because the particles have identical electric charges, which are usually negative, they have repulsive interactions 25 , found that the hydrolyzed products had a positive electric charge. On the surface of the cathode, electrolytically created gases, primarily hydrogen, are produced.…”

Section: Introductionmentioning

confidence: 99%

Waste tea residue adsorption coupled with electrocoagulation for improvement of copper and nickel ions removal from simulated wastewater

Claude

Shi

Khan

et al. 2022

Sci Rep

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The present research involves removing copper and nickel ions from synthesized wastewater by using a simple, cheap, cost-effective, and sustainable activated green waste tea residue (AGWTR) adsorption coupled with electrocoagulation (ADS/EC) process in the presence of iron electrodes. By considering previous studies, their adsorbents used for treating their wastewaters firstly activate them by applying either chemicals or activating agents. However, our adsorbent was prepared without applying neither chemicals nor any activating agents. The operating parameters such as pH, hydraulic retention time, adsorbent dose, initial concentration, current density, and operating cost for both metals were optimized. In ADS/EC, the removal efficiency was obtained as 100% for copper and 99.99% for nickel ions. After the ADS/EC process, Fourier transform infrared (FT-IR) spectroscopy, Scanning Electron Microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDS) analysis were used to characterize the adsorbent green waste tea residue. The adsorption isotherm and kinetic model results showed that the Langmuir and the pseudo-second-order were well-fitted to the experimental adsorption data better than the Freundlich and pseudo-first-order models for both Cu2+ and Ni2+ with their maximum adsorption capacity of 15.6 and 15.9 mg g−1, respectively. The above results give an option to recycle the metal-based industrial effluents, tea industry-based wastes, enabling a waste-to-green technique for adsorbing and removing the heavy metals and other pollutants in water.

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Removal of total organic carbon from peat solution by hybrid method—Electrocoagulation combined with adsorption

Cited by 37 publications

References 36 publications

Energy efficient electrocoagulation using baffle-plates electrodes for efficient Escherichia coli removal from wastewater

Energy efficient electrocoagulation using baffle-plates electrodes for efficient Escherichia coli removal from wastewater

Treatment of Pb(II) Metal in Wastewater Using Combination Method of Electrocoagulation − Activated Carbon Adsorption

Waste tea residue adsorption coupled with electrocoagulation for improvement of copper and nickel ions removal from simulated wastewater

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