Electrochemical treatment of dairy effluent using combined Al and Ti/Pt electrodes system

Bensadok, K.; Hanafi, N.; Lapicque, François

doi:10.1016/j.desal.2011.07.006

Cited by 99 publications

(37 citation statements)

References 36 publications

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“…This research showed that the removal efficiency of COD increased irrespective of electrode types with increasing applied voltage potentials (5, 10 and 15 V) and treatment times. Other researchers (Bensadok et al, 2011;Inan et al, 2004;Laridi et al, 2005;Merzouk et al, 2011;Rivera et al, 2009) also reported that at a particular voltage, removal of COD increased with increased process/treatment time. …”

Section: Chemical Oxygen Demand (Cod) Changementioning

confidence: 96%

“…In the past, limited studies on the use of electrocoagulation were performed on livestock wastewater including swine (Bejan et al, 2007;Cho et al, 2010;Laridi et al, 2005;Rahman and Borhan, 2014), dairy (Bensadok et al, 2011;Şengil, 2006;Tchamango et al, 2010;Yavuz et al, 2011), slaughter house wastewater (Bazrafshan et al, 2012), industrial effluents (Ali and Yaakob, 2012;Basha et al, 2008), pharmaceutical wastewater (Yi-zhong et al, 2002), agroindustry and textile dye wastewater (Merzouk et al, 2009). However, until today, electrocoagulation was not use to treat feedlot runoff.…”

Section: Introductionmentioning

confidence: 99%

“…This runoff may contaminate surface and groundwater, can cause eutrophication and reduce the oxygen level in surface water which may suppress the biodiversity of lagoons and estuaries (Ansari et al, 2011;Hribar and Schultz, 2010;Prophet and Edwards, 1973). To mitigate this problem, researchers are trying to adopt different technologies such as membrane filtration, advanced oxidation process, air flotation, distillation, evapotranspiration, nitrification, precipitation, ammonia stripping and electro-dialysis (Bensadok et al, 2011;Ilhan et al, 2008). Though some of these methods are effective, sometimes these methods may become complex, expensive and sophisticated which may require specialized technical knowledge (Crites et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Remediation of Feedlot Nutrients Runoff by Electrocoagulation Process

Thapa¹,

Rahman²,

Borhan³

2015

American Journal of Environmental Sciences

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Nutrient runoff from Concentrated Animal Feeding Operations (CAFOs) may cause ground and surface water pollution. Scientists and researchers are continually searching for appropriate technologies to mitigate feedlot nutrient runoff pollution. In this study, suitability of electrocoagulation treatment process was examined under laboratory conditions to mitigate nutrient pollutants from the feedlot runoff. Feedlot runoff was treated with three different type of electrodes such as aluminum (Al-Al), iron (Fe-Fe) and hybrid (Al-Fe) at different electrical voltage potentials (5, 10 and 15 Volts) for a designated time step (up to 30 min). The electrocoagulation cell consisted of two parallel rectangular plate electrodes, immersed in a beaker with 500 mL feedlot runoff and powered by a Direct Current (DC) supply. This study was conducted in batches at room temperature. Results indicated that Electrical Conductivity (EC), Total Phosphorus (TP), Total Nitrogen (TN) and Chemical Oxygen Demand (COD) concentration reduced significantly irrespective of electrode types. Overall, TP concentration reduction was higher (100%) followed by COD (50-75%) and TN (25-60%) concentration. Nutrient removal and specific electrical energy consumption increased with increasing voltage level. Aluminum electrodes were more effective than the other two electrodes for TP reduction at all applied potentials and COD reduction was better at lower applied potential. Hybrid electrodes (Al-Fe) reduced TN better than the other two electrodes.

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Section: Chemical Oxygen Demand (Cod) Changementioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Remediation of Feedlot Nutrients Runoff by Electrocoagulation Process

Thapa¹,

Rahman²,

Borhan³

2015

American Journal of Environmental Sciences

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“…Na indústria de laticínios há poucos trabalhos utilizando a EC para tratamento do efluente líquido (SENGIL e OZACAR, 2006;KUSHWAHA et al, 2010;TCHAMANGO et al, 2010;BENSADOK et al, 2011;VALENTE et al, 2012;). Entre esses trabalhos somente três fizeram alguma avaliação do custo do tratamento por EC.…”

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“…Na melhor condição operacional houve reduçãode 70 % de DQO. Bensadok et al (2011) também usaram leite em pó para preparar o efluente da indústria de laticínios. A remoção de DQO foi de 80 % com consumo de energia elétrica de 0,03 kWh por quilograma de DQO removida do efluente.…”

unclassified

Avaliação Do Custo De Energia Elétrica E De Material No Tratamento De Efluente De Laticínios Por Eletrocoagulação

Valente

Mendonça

Pereira

2015

RBTA

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Resumo Neste trabalho foi avaliado o efeito das variáveis operacionais da eletrocoagulação, pH inicial do IntroduçãoA tecnologia de tratamento de efluente líquido usando eletrólise, também denominada eletrocoagulação (EC), é uma alternativa promissora devido a eficiência de remoção de substâncias em efluentes industriais. Essa tecnologia possibilita ampliar a capacidade de tratamento dos sistemas tradicionais, visto que utiliza os mesmos fundamentos básicos de coagulação e floculação, porém adicionalmente disponibiliza elementos que potencializam o tratamento, pois há geração de hidrogênio nas reações de eletrólise,que forma um fluxo ascendente de microbolhas que interagem com todo o efluente (MOLLAH et al, 2004;EMAMJOMEH;SIVAKUMAR, 2009).

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Galvanic Deposition of Pt Nanoparticles on Black TiO₂ Nanotubes for Hydrogen Evolving Cathodes

et al. 2021

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A galvanic deposition method for the in‐situ formation of Pt nanoparticles (NPs) on top and inner surfaces of high‐aspect‐ratio black TiO2‐nanotube electrodes (bTNTs) for true utilization of their total surface area has been developed. Density functional theory calculations indicated that the deposition of Pt NPs was favored on bTNTs with a preferred [004] orientation and a deposition mechanism occurring via oxygen vacancies, where electrons were localized. High‐resolution transmission electron microscopy images revealed a graded deposition of Pt NPs with an average diameter of around 2.5 nm along the complete nanotube axis (length/pore diameter of 130 : 1). Hydrogen evolution reaction (HER) studies in acidic electrolytes showed comparable results to bulk Pt (per geometric area) and Pt/C commercial catalysts (per mg of Pt). The presented novel HER cathodes of minimal engineering and low noble metal loadings (μg cm−2 range) achieved low Tafel slopes (30–34 mV dec−1) and high stability in acidic conditions. This study provides important insights for the in‐situ formation and deposition of NPs in high‐aspect‐ratio structures for energy applications.

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Electrochemical treatment of dairy effluent using combined Al and Ti/Pt electrodes system

Cited by 99 publications

References 36 publications

Remediation of Feedlot Nutrients Runoff by Electrocoagulation Process

Remediation of Feedlot Nutrients Runoff by Electrocoagulation Process

Avaliação Do Custo De Energia Elétrica E De Material No Tratamento De Efluente De Laticínios Por Eletrocoagulação

Galvanic Deposition of Pt Nanoparticles on Black TiO₂ Nanotubes for Hydrogen Evolving Cathodes

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Electrochemical treatment of dairy effluent using combined Al and Ti/Pt electrodes system

Cited by 99 publications

References 36 publications

Remediation of Feedlot Nutrients Runoff by Electrocoagulation Process

Remediation of Feedlot Nutrients Runoff by Electrocoagulation Process

Avaliação Do Custo De Energia Elétrica E De Material No Tratamento De Efluente De Laticínios Por Eletrocoagulação

Galvanic Deposition of Pt Nanoparticles on Black TiO2 Nanotubes for Hydrogen Evolving Cathodes

Contact Info

Product

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About

Galvanic Deposition of Pt Nanoparticles on Black TiO₂ Nanotubes for Hydrogen Evolving Cathodes