Removal of active dyes by ultrafiltration membrane pre-deposited with a PSFM coagulant: Performance and mechanism

Tang, Li-Peng; Xiao, Feng; Wei, Qunshan; Liu, Yanbiao; Zou, Yan–Rong; Liu, Jianshe; Sand, W.; Chow, Christopher W.K.

doi:10.1016/j.chemosphere.2019.02.034

Cited by 16 publications

(5 citation statements)

References 33 publications

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“…Membrane filtration is the process of physically separating soluble colors in water effluents using permeable membranes under pressure [37]. The techniques such as ultrafiltration and nanofiltration are also gaining popularity [38,39]. The aforementioned traditional pathways are analogous to membrane technology.…”

Section: Physical Process Treatmentsmentioning

confidence: 99%

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A Review of the Removal of Dyestuffs from Effluents onto Biochar

et al. 2022

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The study provides a review of various applications of biomass-derived biochars, waste-derived biochars, and modified biochars as adsorbent materials for removing dyestuff from process effluents. Processing significant amounts of dye effluent discharges into receiving waters can supply major benefits to countries which are affected by the water crisis and anticipated future stress in many areas in the world. When compared to most conventional adsorbents, biochars can provide an economically attractive solution. In comparison to many other textile effluent treatment processes, adsorption technology provides an economic, easily managed, and highly effective treatment option. Several tabulated data values are provided that summarize the main characteristics of various biochar adsorbents according to their ability to remove dyestuffs from wastewaters.

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Section: Physical Process Treatmentsmentioning

confidence: 99%

“…The aforementioned traditional pathways are analogous to membrane technology. Osmosis (forward and reverse) [39][40][41] and filtration (ultra/nano) [40,41] may both separate molecules larger than 1 nm. The high cost of pumping energy and the likelihood of membrane pore obstruction are two of membranes' major flaws.…”

Section: Physical Process Treatmentsmentioning

confidence: 99%

A Review of the Removal of Dyestuffs from Effluents onto Biochar

et al. 2022

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“…The most common methods of the dyes removal from wastewaters include e.g., chemical precipitation, ultrafiltration [12], aerobic and anaerobic biological treatment [13], chemical coagulation/flocculation [14], advanced oxidation processes [15], electrochemical treatments [16], and reverse osmosis [17]. However, some of these processes are expensive and ineffective to treat huge range of wastewater [18].…”

Section: Adsorption As Process For Removal Of Dyesmentioning

confidence: 99%

Utilization of Spent Coffee Grounds for Removal of Hazardous Substances from Water: A Review

Blinová

Sirotiak

2019

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

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Water is one of the most important substances on earth; nowadays, its pollution is one of the main environmental problems. Textile industries pose a significant environmental problem for earth. Firstly, it is due to their huge water consumption, and secondly, they produce a lot of wastewater contaminated with dyes, chemicals, suspended solids, etc. These contaminants can make water unsuitable for the desired purposes (e.g., drinking, watering, washing and showering). The one of the promising methods for the removal of dyes from the contaminated wastewater is adsorption. In this process, we can use low cost waste materials as an adsorbent. This paper presents an overview of utilization of the spent coffee grounds for the removal of dyes from wastewater.

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“…At the same time, it may lead to nausea, vomiting, profuse sweating, confusion, and hemoglobinemia. , Therefore, before discharging the methylene blue dye wastewater, it should be effectively treated to remove methylene blue from the wastewater to try to avoid its release into the environment. Therefore, the removal of dye wastewater has also become a topic of interest for many scientific researchers, who have researched and developed many different techniques for the treatment of dye wastewater, such as physical treatment, biodegradation, advanced chemical oxidation, and photocatalytic degradation. − …”

Section: Introductionmentioning

confidence: 99%

Preparation of a Gangue-Based X-type Zeolite Molecular Sieve as a Multiphase Fenton Catalyst and Its Catalytic Performance

Zhang

Wang

2021

ACS Omega

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In this study, a series of X-type zeolite molecular sieve catalysts, modified with copper (Cu-X), were prepared by an alkali fusion–hydrothermal synthesis using coal gangue from Inner Mongolia. These catalysts were used in the degradation of the methylene blue dye by a Fenton-like reaction. Characterization results showed that Cu is considered to be present in the surface structure of the zeolite in the form of doped Cu ions and metal oxide. It is believed that Cu2+ is the main active site involved in the Fenton reaction. The X-ray photoelectron spectroscopy (XPS) spectra indicated that Cu2+ and Cu+ coexist in the catalysts and participate together in the Fenton reaction. The degradation of methylene blue by the Cu-X catalysts was investigated to determine the optimal catalytic conditions in terms of six aspects: catalyst dosage, initial solution concentration, initial pH of the solution, H2O2 dosage, copper loading, and reaction temperature. The experimental results showed that CX-1.0 had excellent activity and stability for the degradation and decolorization of the methylene blue dye, which could completely degrade the dye within 90 min, and the total organic carbon removal rate reached as high as 97.8%. Electron spin resonance (ESR) and radical capture experiments showed that •OH played a dominant role in the Fenton-like reaction. Combined with XPS, ESR, and catalytic tests, the redox cycle of Cu+/Cu2+ was found to be accelerating the generation of reactive radicals in the Fenton system.

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Removal of active dyes by ultrafiltration membrane pre-deposited with a PSFM coagulant: Performance and mechanism

Cited by 16 publications

References 33 publications

A Review of the Removal of Dyestuffs from Effluents onto Biochar

A Review of the Removal of Dyestuffs from Effluents onto Biochar

Utilization of Spent Coffee Grounds for Removal of Hazardous Substances from Water: A Review

Preparation of a Gangue-Based X-type Zeolite Molecular Sieve as a Multiphase Fenton Catalyst and Its Catalytic Performance

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