Treatment of nitrate-rich groundwater using electrocoagulation with aluminum anodes

Amarine, Mohammed; Lekhlif, Brahim; Sinan, Mohamed; Rharras, Abdessamad El; Echaabi, Jamal

doi:10.1016/j.gsd.2020.100371

Cited by 43 publications

(10 citation statements)

References 72 publications

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“…It can be seen from Table S3 The predicted removal e ciency (%) for COD, TSS, colour and treated pH were calculated using the Coded Eq. ( 4), ( 5), ( 6) and (7). In the Eqs.…”

Section: Resultsmentioning

confidence: 99%

Electrocoagulation-Intensified Peroxidation of Poultry Slaughterhouse Wastewater: A Parametric Study and Process Optimization

Toh¹,

Bashir²,

Guo³

et al. 2021

Preprint

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In this research, electrocoagulation intensified peroxidation (ECP) using Aluminium electrode was studied as a post-treatment method for poultry slaughterhouse wastewater (SWW) with 4 operational variables (pH, current density, contact time and H2O2 dosage). Optimization was carried out using Response Surface Methodology (RSM). The experimental data were analyzed via analysis of variance and a second order model was developed to test the effects of process parameters on the treatment performance. The optimum conditions were chosen as; pH 5.83, 0.18 g/L H2O2 dosage, 58.60 min. contact time and current density 4.21 mA/cm2. The compatibility of the predicted optimum conditions has been verified by experimental data. As a result of the experiments performed under optimum conditions, COD, TSS and color removals were found to be 97.89%, 99.31% and 98.56%, respectively. The difference between experimental and predicted values was found to be less than 0.86%. The final treated effluent met the discharge standards determined by the World Bank, EU, US and Malaysian Department of Environment for SWWs. Under optimum conditions to treat 1 cubic meter of SWW was calculated as 2.52 MYR ($ 0.58).

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“…It can be seen from Table S3 The predicted removal e ciency (%) for COD, TSS, colour and treated pH were calculated using the Coded Eq. ( 4), ( 5), ( 6) and (7). In the Eqs.…”

Section: Resultsmentioning

confidence: 99%

Electrocoagulation-Intensified Peroxidation of Poultry Slaughterhouse Wastewater: A Parametric Study and Process Optimization

Toh¹,

Bashir²,

Guo³

et al. 2021

Preprint

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“…Understanding the distribution of nitrates in the groundwater will control the groundwater use by people and monitor the land utilization above the groundwater. Amarine et al (2020) stated that consumption of Nitrate contaminated water might cause health problems. Nitrate can produce nitro amines, which trigger baby blue syndrome and cause stomach cancer and digestive disorders.…”

Section: Distribution Of Nitrate Contaminated Groundwatermentioning

confidence: 99%

“…Not following the regulations will cause various diseases such as diarrhea, dysentery, and others. In recent years the quality of groundwater worldwide has decreased, which is influenced by nitrates, which are organic compounds that become pollutants from the remaining products of human activities (Amarine et al, 2020). Agricultural area, which is a land designation with wide coverage, can contribute to organic compound pollutants.…”

Section: Introductionmentioning

confidence: 99%

Contaminated Groundwater by Nitrate in Sidoarum Village, Godean District, Sleman Regency, Special Region of Yogyakarta

Lukito

Yogafanny

Suharwanto

et al. 2022

JMEL

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Sidoarum Village, Godean District, Sleman Regency, Special Region of Yogyakarta become one of the developing areas for getting influenced by Yogyakarta City center which is only 8 kilometers away. Population growth has occurred from 2010 to 2019 which has led to land use changes from agricultural areas to residential areas. Land use change, population growth, incorrect space using, excessive use of fertilizers, agricultural activities, and industrial waste disposal affects the groundwater quality resources, especially nitrate (NO3) compound. This research was aimed to determine the distribution of groundwater quality based on nitrate parameters and to analyze the relationship between land use changing and nitrate concentrations in groundwater. This mixed-method research used to survey and mapping methods to collect the data. The analysis was conducted by laboratory tests and spatial analysis method using Arc GIS software. The sampling of groundwater was carried out by purposive sampling method based on differences in land use. The results indicated that most of the groundwater in Sidoarum Village has been contaminated by nitrate due to activity in agricultural areas like intense fertilizer application and farming in household-scale in densely populated areas, especially with the bad sanitation system. The distribution of nitrate contaminated groundwater was correlated to the types of land use. The monitoring of land use change is needed especially from the agricultural areas to residential areas due to excessive population growth.

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“…Most of the residual ash after the extraction of metal aluminum is directly stored or landfilled, and a small part is used to make fillers for construction materials [5][6][7]. When being landfilled, about 95% of the aluminum ash has not been harmlessly treated, which will cause toxic metal ions to flow into the groundwater and cause serious environmental pollution [8]. Some valuable components in aluminum ash have not been recovered, resulting in the waste of resources, such as Al, Al 2 O 3 , AlN, etc.…”

Section: Introductionmentioning

confidence: 99%

Performance Optimization of Original Aluminum Ash Coating

Zhang

et al. 2020

Coatings

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Aluminum ash is a kind of industrial solid waste. Original aluminum ash (OAA) can be prepared into original aluminum ash spray powder (OAASP) through hydrolysis treatment, and the original aluminum ash coating (OAAC) can be prepared on the surface of the substrate by plasma spraying. In order to optimize the performance of the OAAC, the OAASP was screened to select the appropriate particle size to improve the flowability of the powder. Then, the influence of the alumina content on coating performance was studied through comparative experiments. The micro morphology of the coating was analyzed, and the performance parameters of the coating were tested. The results show that the spray powder with a particle size of 120–150 mesh accounts for the largest proportion of OAASP, and its flowability is better than that of unsieved OAASP, which is suitable for coating preparation. The performance of the coating can be improved by adding high-purity alumina. When the Al2O3 addition is 50%, the porosity of the coating is 0.131%, the adhesive strength is 17.12 MPa, the microhardness is 713.36 HV, and the abrasion rate 10.31 mg/min. Compared with the coating without Al2O3, the porosity is decreased by 19.63%, the adhesive strength is increased by 5.35%, the microhardness is increased by 17.61%, and the abrasion rate is decreased by 19.83%. There are regions with different brightness on the surface of the coating with Al2O3. After semiquantitative analysis, the main phase in the bright region is Al2O3, and the main phases in the dark and gray regions are Al2O3, SiO2, and Fe3O4. The performance of the OAAC can be optimized by improving the flowability of the sprayed powder and increasing the alumina content.

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Treatment of nitrate-rich groundwater using electrocoagulation with aluminum anodes

Cited by 43 publications

References 72 publications

Electrocoagulation-Intensified Peroxidation of Poultry Slaughterhouse Wastewater: A Parametric Study and Process Optimization

Electrocoagulation-Intensified Peroxidation of Poultry Slaughterhouse Wastewater: A Parametric Study and Process Optimization

Contaminated Groundwater by Nitrate in Sidoarum Village, Godean District, Sleman Regency, Special Region of Yogyakarta

Performance Optimization of Original Aluminum Ash Coating

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