Treatment of textile wastewater by electrochemical method

Lin, Sheng H.; Peng, Chifang

doi:10.1016/0043-1354(94)90264-x

Cited by 389 publications

(199 citation statements)

References 4 publications

Supporting

Mentioning

184

Contrasting

Unclassified

Order By: Relevance

“…These effluents, produced in great quantities, contain appreciable levels of organic compounds which are not easily amenable to chemical or biological treatment [2,3] and can be very dangerous to environmental life [4]. Moreover, adsorbable organic halogens (AOX) are formed as a result of the use of bleaching chemicals [5].…”

Section: Introductionmentioning

confidence: 99%

Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions

2014

View full text Add to dashboard Cite

This work focuses in the use of Fenton reagent and UV-irradiation, in a lab-scale experiment, for the treatment of real dye wastewater coming from a Spanish textile manufacturer.Response surface methodology (RSM) and a 2 3 factorial design were used to evaluate the effects of the three independent variables considered for the optimization of the oxidative process: temperature, Fe (II) and H 2 O 2 concentrations, for a textile wastewater generated during a dyeing process with chemical oxygen demand (COD) of 1705 mg·L -1 O 2 at pH = 3. Wastewater degradation was followed in terms of COD decrease.In the optimization, the correlation coefficients for the model (R The combination of Fenton, Fenton-like and photon-Fenton reactions has been proved to be highly effective for the treatment of such a type of wastewaters, and several advantages for the technique application arise from the study. Under these conditions, 120 min of treatment resulted in a 62.9 % and 76.3 % decrease in COD after Fenton and photo-Fenton treatments respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions

2014

View full text Add to dashboard Cite

show abstract

“…Environment researchers have paid special attention to dye compounds because of the extensive environmental contamination arising from dyeing operations. Most studies have focused on the development of a treatment technique and method for dye wastewater, such as a physical-chemical technique destroying the color groups (30,31), a biodegradation process mineralizing the colorless organic intermediates (32,33), and chemical oxidation including homogeneous oxidation (34) and heterogeneous photocatalytic oxidation (35)(36)(37). However, because of its higher organic concentration, particular toxicity, complex composition, and poor degradability, dye wastewater cannot be efficiently purified and treated.…”

Section: Introductionmentioning

confidence: 99%

Sorption Behavior of Dye Compounds onto Natural Sediment of Qinghe River

Liu

Tang

et al. 2001

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

“…Residual solvent monomer and feed from the homopolymers or copolymers were removed by Soxhlet-extracting the PET fibers in methanol for 96 h. The grafted fibers were then vacuum-dried at 50 o C for 72 h and weighed. The graft yield (GY) was calculated from the weight increase in grafted fibers as follows: G Y (%) = [(w g -w i )/w i ] x 100 (8) Where w i and w g denote the weights of the original (ungrafted) and grafted PET fibers respectively.…”

Section: Polymerization Proceduresmentioning

confidence: 99%

“…Therefore Congo red has to be removed from wastewater. There are several methods for removing dyes from aqueous solution such as adsorption processes [2], oxidation process [3], ozonations [4], membrane separation [5], nanofiltration [6], biological treatments [7], and electrochemical methods [8].…”

Section: Introductionmentioning

confidence: 99%

Use of 4-vinylpyridine and 2-hydroxyethylmethacrylate monomer mixture grafted poly(ethylene terephthalate) fibers for removal of congo red from aqueous solution

Arslan¹,

Yi̇ği̇toğlu²

2008

E-Polymers

View full text Add to dashboard Cite

Abstract:In this study, a novel fibrous adsorbent made by grafting 4-vinyl pyridine (4-VP) and 2-hydroxyethylmethacrylate (HEMA) monomer mixture onto poly(ethylene terephthalate) (PET) fibers was used for removal of Congo red (CR) in aqueous solutions by a batch equilibration technique. The influence of treatment time, pH of solution, dyes concentration, and reaction temperature on adsorbed amount was investigated. Adsorption time of 60 min. was found sufficient to reach adsorption equilibrium for CR. It was found that the adsorption isotherm of CR fits to Langmuir type isotherms. The highest adsorption capacity was found to be 11.87 mg CR per gram adsorbent. The adsorption rate of CR is much higher on the comonomers grafted PET fibers than on the ungrafted PET fibers. CR was removed 97 % when the initial dye concentration was 5 mg L -1 and 38% at 150 mg L -1 by monomers mixture grafted PET fibers. The adsorption of the dye was). It was found that the reactive fibers are stable and regenerate by acid without losing its activity.

show abstract

Treatment of textile wastewater by electrochemical method

Cited by 389 publications

References 4 publications

Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions

Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions

Sorption Behavior of Dye Compounds onto Natural Sediment of Qinghe River

Use of 4-vinylpyridine and 2-hydroxyethylmethacrylate monomer mixture grafted poly(ethylene terephthalate) fibers for removal of congo red from aqueous solution

Contact Info

Product

Resources

About