Brackish water recovery from reactive dyeing wastewater via ultrafiltration

Erkanlı, Mert; Yılmaz, Levent; Çulfaz-Emecen, P. Zeynep; Yetış, Ülkü

doi:10.1016/j.jclepro.2017.07.195

Cited by 54 publications

(24 citation statements)

References 22 publications

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“…Membrane processes such as MF, NF, UF and RO are currently used for water reuse, brackish water and seawater [17]. Polymer based membranes are mostly used membrane material but because polymers such as polysulfone and polyethersulfone, are hydrophobic [18], polymeric membranes are prone to fouling [19].…”

Section: Challengesmentioning

confidence: 99%

Wastewater Treatment Using Membrane Technology

Nqombolo¹,

Mpupa²,

Moutloali³

et al. 2018

Wastewater and Water Quality

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Water contamination by heavy metals, cyanides and dyes is increasing globally and needs to be addressed as this will lead to water scarcity as well as water quality. Different techniques have been used to clean and renew water for human consumption and agricultural purposes but they each have limitations. Among those techniques, membrane technology is promising to solve the issues. Nanotechnology present a great potential in wastewater treatment to improve treatment efficiency of wastewater treatment plants. In addition, nanotechnology supplement water supply through safe use of modern water sources. This chapter reviews recent development in membrane technology for wastewater treatment. Different types of membrane technologies, their properties, mechanisms advantages, limitations and promising solutions have been discussed.

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Section: Challengesmentioning

confidence: 99%

Wastewater Treatment Using Membrane Technology

Nqombolo¹,

Mpupa²,

Moutloali³

et al. 2018

Wastewater and Water Quality

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“…Substâncias químicas com potencial de toxicidade são lançadas nos sistemas, resultando em contaminações e degradações do ecossistema terrestre e aquático. Além disso, ao longo do tempo, alguns contaminantes vão entrando na cadeia alimentar dos organismos, o que representa um enorme risco à saúde e à biodiversidade (Erkanlı et al, 2017). Dessa forma, a sociedade tem um desafio de encontrar um novo equilíbrio com a natureza, e não deixar de lado a expansão de oportunidades econômicas para que possa ter um padrão de vida sustentável.…”

Section: Introductionunclassified

Aproveitamento do bagaço de malte como adsorvente para a remoção do corante azul de metileno

Correia

Barros

Fernandes

et al. 2020

RSD

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O bagaço de malte é uma alternativa viável para ser utilizado como bioadsrovente, pois é produzida em grandes quantidades durante o processo de produção da cerveja. O presente trabalho teve como objetivo avaliar a porcentagem de remoção do teor de azul de metileno em efluente sintético utilizando o bagaço de malte como adsorvente. O material foi caracterizado por meio de análise granulométrica, difratometria de raios X (DRX), espectroscopia no infravermelho com transformada de Fourier (FT-IR) e análise termogravimétrica (TGA). Os experimentos foram realizados com base em um plano experimental de 2³ com três réplicas no ponto central. Havia três variáveis independentes: a concentração de azul de metileno (40, 60 e 80 mg/L), o pH (6, 7 e 8) e o tempo (4, 5 e 6 horas). As melhores condições foram obtidas através do tratamento dos dados experimentais no software Statistica 13.0. O bagaço teve um percentual de remoção de aproximadamente 94% para o maior nível de concentração (80 mg/L), menor nível de pH (6) e menor tempo (4 horas). Assim, o bagaço de malte apresenta eficiência na remoção do de azul de metileno em efluente sintético, portanto, é uma alternativa por também ser economicamente viável.

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“…Textile industry is one of the most important manufacture industries in developing countries [1]. It is known to be a water intensive sector (200-400 L per kg of finished product) [2] and consequently, it produces high amount of polluted wastewater whose composition depends mainly on the textile process and type of fibre used [3].…”

Section: Introductionmentioning

confidence: 99%

Reducing the environmental impact of textile industry by reusing residual salts and water: ECUVal system

Buscio

López‐Grimau

Alvarez

et al. 2019

Chemical Engineering Journal

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The textile industry is one of the largest consumers of water in the world and its wastewater constitutes a serious problem when it is discharged without the proper treatment. Different techniques are being applied for treating textile effluents. But, as far as we know, none of them consider the reuse of the clarified effluents.In this work, a recently developed wastewater system named ECUVal is proposed to treat and subsequently reuse the effluents generated by the dyeing process of a textile mill, which usually have high dyes and salt content. With this system, a reduction of water and salt consumption is achieved and simultaneously the volume of discharged effluents is also reduced.The ECUVal system is based on an electrochemical treatment assisted by UV irradiation. The system is able to remove colour completely. Colour removal efficiencies between 64-99% were obtained depending on the intensity applied. Moreover, the treated effluents are reconstituted in the system to be reused in new dyeing processes. Thus, 70% of water and up to 72% of salt reuse was achieved. The chromatic coordinates of fabrics dyed with the treated effluent were evaluated with respect to reference ones. Dyeings performed with reused effluents were in general into the acceptance limit of the textile industry (DE CMC(2:1) ≤ 1).Finally, the environmental impact of the wastewater treatment currently performed in the textile companies was compared with respect to the ECUVal treatment by means of life cycle assessment. It was concluded that the use of the system reduces significantly the environmental impact of the textile industry.

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Brackish water recovery from reactive dyeing wastewater via ultrafiltration

Cited by 54 publications

References 22 publications

Wastewater Treatment Using Membrane Technology

Wastewater Treatment Using Membrane Technology

Aproveitamento do bagaço de malte como adsorvente para a remoção do corante azul de metileno

Reducing the environmental impact of textile industry by reusing residual salts and water: ECUVal system

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