Performance of a pilot-scale reverse osmosis process for water recovery from biologically-treated textile wastewater

Şahinkaya, Erkan; Tunçman, Selen; Koç, İbrahim; Güner, Ali R.; Ciftci, Suheyla; Aygün, Ahmet; Sengul, Serhat

doi:10.1016/j.jenvman.2019.109382

Cited by 62 publications

(22 citation statements)

References 22 publications

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“…Owing to the multifaceted molecular arrangement of the dyestuff, they are unable to degrade naturally [11,16,17]. There are some of the efficient and accessible technologies used presently for the removal of dyes, which include filtration technologies like ultrafiltration [18], nanofiltration [19], reverse osmosis [20]. But filtration technology exhibits certain major drawbacks like clogging of pores, membrane denaturation etc.…”

Section: Introductionmentioning

confidence: 99%

Study on isotherm, kinetics, and thermodynamics of adsorption of crystal violet dye by calcium oxide modified fly ash

Chakraborty

Mukherjee

Das

et al. 2020

Environmental Engineering Research

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The natural Fly ash modified with calcium oxide has been employed to eliminate the crystal violet dyestuff from the simulated solution. Herein, the effect of different physicochemical factors like primary dye concentration, sorption contact time, the quantity of the adsorbent, temperature, along with initial simulated solution pH, evaluated for illustrating the mechanism of adsorption. Furthermore, the equilibrium study was conducted, and equilibrium models like Langmuir, Freundlich, and Dubinin- Raduskevich (D-R) were fitted to obtain analytical results to endow with more insight into the process. The results acknowledged that the Langmuir model is well apt and suggests that the adsorption mechanism happens in a monolayer on the fly ash surface. Pseudo-first order, Pseudo-second order, and the intraparticle diffusion model evaluated, and the interpretation suggests the sorption method is obeying the Pseudo-second order and intraparticle diffusion model. The ascertained negative values of Gibbs free energy affirmed the unconstrained process for all symbiotic associations, and the obtained data 78.70 kJ mol<sup>–1</sup> enthalpy values manifested that exothermic mechanism was governing the reaction. The above assessment confirms the application of Calcium oxide pre-treated fly ash as a cheap adsorbent to eliminate the crystal violet dyestuff from the simulated solution.

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Section: Introductionmentioning

confidence: 99%

Study on isotherm, kinetics, and thermodynamics of adsorption of crystal violet dye by calcium oxide modified fly ash

Chakraborty

Mukherjee

Das

et al. 2020

Environmental Engineering Research

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show abstract

“…Sahinkaya et al, studied a pilot scale RO process (using a spiral wound membrane element) with three different operational modes to collect more information. The result showed that the permeate (conductivity 150 μS/cm) produced in the RO process can be recycled in the dyeing process as the feed conductivity was around 5500 μS/cm, at 70% water recovery [95].…”

Section: Ro Current Progress Discussionmentioning

confidence: 99%

Recent Developments of Membrane Technology for Wastewater Treatment

Gaikwad

2021

Materials Research Foundations

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The worldwide one major and important issue is the increasing shortage of freshwater. Water is polluted by various category of pollutant such as heavy metal, organic toxic chemical, dyes and others. In such situation providing better solutions for water treatment is a major challenge for researchers. Various techniques have been used in wastewater treatment applications but among those techniques the membrane technology is the most promising technology. This chapter contains recent progress of membrane technology for advanced wastewater treatment, is systematically summarize. This review includes introduction about different membrane technology such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO). Current status of each membrane separation techniques, membrane cleaning techniques, challenges and promising solutions for various wastewater treatment have been discussed.

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“…Nadeem, Guyer, Keskinler, and Dizge (2019) evaluated the recycling potential of four types of textile wastewater streams after membrane filtration; they found that pretreatment and post‐washing wastewater can be reused in textile wet processing after treatment with a UF + nanofiltration (NF, membrane type NF90) configuration, while dyeing and first‐washing wastewater did not meet the reuse standard due to their extreme conductivity, despite being treated with the UF + NF (membrane type NF200) + NF (membrane type NF90) configuration. A pilot‐scale RO process operated in a continuous mode demonstrated a reclaimed water recovery of 70% from textile wastewater and a 19 L m −2 hr −1 (LMH) flux (Sahinkaya et al, 2019). The RO membrane permeate had conductivities less than 150 µS/cm and could be safely reused in the dyeing process.…”

Section: Treatment Technologiesmentioning

confidence: 99%

Water reclamation and reuse

Zhang

Sun

Liu

2020

Water Environment Research

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Literature published in 2019 pertinent to water reclamation and reuse has been classified into five sections: safe reuse, treatment technologies, management, assessment, and case studies. Membranes have been widely applied in integrated processes to polish secondary effluent and achieve high-quality reclaimed water. Increased efforts have also been made to facilitate feasible and safe water reuse.

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Performance of a pilot-scale reverse osmosis process for water recovery from biologically-treated textile wastewater

Cited by 62 publications

References 22 publications

Study on isotherm, kinetics, and thermodynamics of adsorption of crystal violet dye by calcium oxide modified fly ash

Study on isotherm, kinetics, and thermodynamics of adsorption of crystal violet dye by calcium oxide modified fly ash

Recent Developments of Membrane Technology for Wastewater Treatment

Water reclamation and reuse

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