Soluble chemical oxygen demand removal from bypass wastewater using iron electrocoagulation

Elnakar, Haitham; Buchanan, Ian D.

doi:10.1016/j.scitotenv.2019.136076

Cited by 32 publications

(12 citation statements)

References 41 publications

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“…As shown in Fig. 5, outlet Eh and pH values varied between the ranges of values that promote solid-phase Fe hydroxides (Fe(OH)3) at 23 °C, which was the average temperature during column experiments (adapted from [45]). However, it should be noticed that theoretical Fe 3+ /Fe 2+ equilibrium conditions in Fig.…”

Section: Iron Mobilization In Cbrmentioning

confidence: 99%

Phosphorus removal from wastewater by carbonated bauxite residue under aerobic and anoxic conditions

Barca

Scanu

Podda

et al. 2021

Journal of Water Process Engineering

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This study aimed at evaluating the potential use of carbonated bauxite residue (CBR) as filter substrate to upgrade phosphorus (P) removal in small wastewater treatment plants such as constructed wetlands. Comparative experiments of P removal were performed in two columns continuously fed with synthetic and real wastewater to investigate the behavior of CBR under aerobic (column A) and anoxic biotic conditions (column B). The effect of various parameters, including pH, temperature, addition of organic carbon, and dissolved oxygen concentration, was investigated. Also, a series of chemical extractions was performed to elucidate the main mechanisms of P removal achieved by CBR. Over 140 days of operation, columns A and B showed a total P removal performance of 98.5% and 91.6%, thus reaching a total P removal capacity of 0.63 mg P/g CBR and 0.61 mg P/g CBR, respectively. The results indicate that 2 aeration conditions and microbial activity can significantly affect the performance of CBR filters. Under aerobic conditions, precipitation of CaP complexes appears to be the main mechanism leading to P removal. Under anoxic biotic conditions, microbially driven mobilization of Fe from CBR may provide Fe ions for Fe-P precipitation, but also it may lead to Fe release from the filters. This study provides crucial information to evaluate the potential use of CBR at different steps of the wastewater treatment process. Overall, the results indicate that the use of CBR filters is particularly suitable as a tertiary treatment step to remove P from effluents with low organic load under aerobic conditions.

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Section: Iron Mobilization In Cbrmentioning

confidence: 99%

Phosphorus removal from wastewater by carbonated bauxite residue under aerobic and anoxic conditions

Barca

Scanu

Podda

et al. 2021

Journal of Water Process Engineering

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“…where source of pollution is known and is easily identifiable), and (2) non-point (i.e. where source of pollution is unknown or it is hard to identify) source pollution ( Elnakar and Buchanan, 2020 ; Loague and Corwin, 2006 ; Society, 2019 ; Yang et al., 2010 ).…”

Section: Literature Reviewmentioning

confidence: 99%

Cleaner production practices at company level enhance the desire of employees to have a significant positive impact on society through work

Farooq

Salam

2021

Journal of Cleaner Production

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Implementation of cleaner production practices (CPP), service quality (SQ) and corporate social responsibility (CSR) is often studied at organizational level. A number of studies on trio have reported it’s significant impact on overall organizational performance and profitability across the globe. However, not much is studied about the individual level micro influence of these constructs on employee engagement (EE), organizational pride (OP), organizational identification (OI) and “desire to have a significant impact through work” (DSIW). Therefore, this study presents a comprehensive framework for assessing the impact of the implementation of CPP, SQ and CSR on EE, OP, OI and DSIW. Data collected from 320 non-managerial staff members employed at a garments manufacturing company in Pakistan was analyzed using partial least square (PLS) approach. Findings revealed that the implementation of CPP, SQ and CSR plays an important role in shaping EE, OP, OI and DSIW in the garments manufacturing industry. Further, it is found that the implementation of CPP has a non-significant impact on SQ. Additionally, results of the importance-performance map analysis (IPMA) have also confirmed that the implementation of CPP at company level has shown a highest importance and performance amongst all the latent constructs proposed as predictors of DSIW in the garments manufacturing industry. These findings are a step forward and unique contribution of this study in the domain of CPP, SQ, CSR, EE, OP, OI and DSIW.

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“…For the removal of malathion pesticides by EC, Sankar and Sivasubramanian (2021) observed charge neutralization followed by sweep coagulation with the metal hydroxide to be the main removal mechanism. Elnakar and Buchanan (2020) also recommended that the in-situ generated ferric hydroxide acts as an adsorbent that removes the sCOD through chemisorption. Several phenomena like metal ion formation, electrochemical decomposition, hydrolysis, metal-organic attraction, etc., also happen concurrently during the pollutants' migration through the electric field.…”

Section: Introductionmentioning

confidence: 99%

Effect of additional Fe2+ salt on electrocoagulation process for the degradation of methyl orange dye: An optimization and kinetic study

Akter

Islam

2022

Heliyon

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Soluble chemical oxygen demand removal from bypass wastewater using iron electrocoagulation

Cited by 32 publications

References 41 publications

Phosphorus removal from wastewater by carbonated bauxite residue under aerobic and anoxic conditions

Phosphorus removal from wastewater by carbonated bauxite residue under aerobic and anoxic conditions

Cleaner production practices at company level enhance the desire of employees to have a significant positive impact on society through work

Effect of additional Fe2+ salt on electrocoagulation process for the degradation of methyl orange dye: An optimization and kinetic study

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