Use of sequencing batch reactors and Fenton’s reagent to treat a wastewater from a textile industry

Fongsatitkul, Prayoon; Elefsiniotis, P.; Yamasmit, A.; Yamasmit, N.

doi:10.1016/j.bej.2004.06.009

Cited by 77 publications

(49 citation statements)

References 30 publications

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“…The same observation was made by Fongsatitkul et al [36]. Fongsatitkul et al [36] reported that chemical treatment prior to biodegradation delivered the best performance for treating the textile effluent rather than only biological and biological prior to the chemical treatment.…”

Section: Introductionsupporting

confidence: 59%

“…Predetermined quantity (lower optimum doses) of Fe 2+ ions and H 2 O 2 were added to the reactor. Reaction was allowed to continue for 30 min, after which pH of sample was adjusted to 7 by using 1 M NaOH [29,32,36] and allowed to stand for 30 min. The supernatant was analyzed for color (λ max ), aromatic amines, absorbance at benzene ring, absorbance at naphthalene ring and COD.…”

Section: Decolorization Of Dyes Using Fenton's Reagentmentioning

confidence: 99%

“…An acclimation period was necessary in order to gradually expose the microbial community to the potential inhibitory or toxic organic compound; this allows the development of appropriate enzyme producing agents that are essential to induce biodegradation of toxic dye intermediates [36]. Stabilization of reactor was assessed by measurement of COD reduction.…”

Section: Start Up Of Sbrsmentioning

confidence: 99%

“…either biological process or advanced oxidation process for treating recalcitrant compound. Whereas the preferred method for treatment of recalcitrant compound is to use advanced oxidation processes (for partial degradation) followed by aerobic biological process [33][34][35][36]. Several investigators have demonstrated that Fenton's reagent is effective for complete color removal and partial degradation of complex organic matter [31,37].…”

Section: Introductionmentioning

confidence: 99%

“…conjugated unsaturated bond (-N N-) in molecules [43]. However the end products formed are of concern [36]. Further these end products (aromatic amines) can be possibly degraded biologically (after acclimatization) under aerobic condition [12,13,15,[18][19][20], which is also considered to be an economical treatment.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Optimization of Fenton-biological treatment scheme for the treatment of aqueous dye solutions

Lodha

2007

Journal of Hazardous Materials

191

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Section: Introductionsupporting

confidence: 59%

Section: Decolorization Of Dyes Using Fenton's Reagentmentioning

confidence: 99%

Section: Start Up Of Sbrsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimization of Fenton-biological treatment scheme for the treatment of aqueous dye solutions

Lodha

2007

Journal of Hazardous Materials

191

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Sequencing batch reactor technology for biological wastewater treatment: a review

Singh

Srivastava

2010

Asia-Pacific J Chem Eng

142

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Wastewater treatment has been a challenge throughout the years due to varying influent characteristics and stringent effluent regulations. In response to this dilemma, a reliable, cost-effective and high-efficiency sequencing batch reactor (SBR) technology has been recently developed. SBRs are variations of the activated sludge process that operates on a fill-and-draw basis. It combines both aerobic-anaerobic phases in one unit and saves up to 25% of the aeration costs concomitant with low sludge production. Consequently, simultaneous nitrogen and phosphorus removal from the wastewater could be achieved by adjusting the actual operating cycle. This review paper discusses the technical description and operational flexibility of SBR for the treatment of wide range of effluent under different operational conditions, together with its modifications that could increase the effectiveness of SBR systems in the future.

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Adsorption and desorption properties of cationic polyethylene film gels to organic anions and their regeneration

Yamada

Shibuya

Takagi

et al. 2005

J of Applied Polymer Sci

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An investigation was undertaken on the adsorption and desorption properties of 2-(dimethylamino)ethyl methacrylate grafted polyethylene (PE-g-PD-MAEMA) films to anionic dye anions with one to three sulfonic groups in response to pH and temperature changes. The amounts of dye anions adsorbed on the PE-g-PD-MAEMA films passed through the maximum values at about pH 3 because of an increase in the protonation of dimethylamino groups caused by a decrease in the pH value. The amounts of adsorbed dye anions decreased below pH 3 because the ionic strength increased with the addition of HCl to adjust the initial pH values of the aqueous dye solutions. The amounts of adsorbed dye anions decreased with an increase in the number of sulfonic groups in the dye molecules at the same pH value because electrostatic repulsion was generated between free sulfonic groups of the dye anions adsorbed onto the PE-g-PDMAEMA films and free dye anions in the medium. A large number of dye anions adsorbed were desorbed from the PE-g-PDMAEMA film with initial pH values above 11.0. The cyclic processes of adsorption at pH 3.0 and desorption at pH 11.0 were repeated without considerable fatigue. The PE-g-PD-MAEMA films showed practically regenerative adsorption and desorption behavior in response to the pH changes. In addition, when the dye-anion-adsorbed PE-g-PDMAEMA films were alternately immersed in water at two different temperatures, dye anions were desorbed in water at higher temperatures without any chemical agents because of the deprotonation of dimethylamino groups and thermosensitive contraction of grafted PDMAEMA chains. These results indicate that PE-g-PDMAEMA films can be applied as regenerative ion-exchange membranes for adsorption and desorption processes of anionic compounds in response to the pH and temperature.

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Use of sequencing batch reactors and Fenton’s reagent to treat a wastewater from a textile industry

Cited by 77 publications

References 30 publications

Optimization of Fenton-biological treatment scheme for the treatment of aqueous dye solutions

Optimization of Fenton-biological treatment scheme for the treatment of aqueous dye solutions

Sequencing batch reactor technology for biological wastewater treatment: a review

Adsorption and desorption properties of cationic polyethylene film gels to organic anions and their regeneration

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