Some properties of a granular activated carbon-sequencing batch reactor (GAC-SBR) system for treatment of textile wastewater containing direct dyes

Sirianuntapiboon, Suntud; Ohmomo, Sadahiro; Salee, Paneeta

doi:10.1016/j.jenvman.2006.09.001

Cited by 48 publications

(24 citation statements)

References 22 publications

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“…However, another very important investigation line includes technological studies on such bioreactors, regarding system efficiency and stability when submitted to increasing organic loads in different wastewaters, such as synthetic wastewater [4,5,17], piggery effluents [8,18], cheese whey effluents [14,19], leachate [20], effluents from automotive industry [21], effluents from food and beverage plants [22,23], effluents from personal care industry [24], and effluents of chemical industry [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

ASBR Applied to the Treatment of Biodiesel Production Effluent: Effect of Organic Load and Fill Time on Performance and Methane Production

Selma

Cotrim

Rodrigues

et al. 2010

Appl Biochem Biotechnol

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The effect of organic matter and fill time on anaerobic sequencing batch reactor (5 L, 30 °C, 8-h cycles, 50 rpm) efficiency has been analyzed. Organic matter was increased by the influent concentration. Fill times investigated were in the batch mode and fed-batch followed by batch. In the batch mode organic matter removal were 93%, 81%, and 66% for influent concentration of 500, 1,000, and 2,000 mgCOD/L (0.6, 1.29, and 2.44 g COD/L.d), respectively. At 3,000 mgCOD/L (3.82 gCOD/L x d) operational stability could not be achieved. Removal efficiency was improved by increasing the fill time, and was 85% for the 1,000 mgCOD/L condition and fill times of 2 and 4 h, and 80 and 77% for the 2,000 mgCOD/L condition and fill times of 2 and 4 h, respectively. Hence, gradual feeding seemed to improve and to smooth the profiles of organic matter and volatile acids along the cycle with 78 to 96 NmLCH₄/gCOD.

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Section: Introductionmentioning

confidence: 99%

ASBR Applied to the Treatment of Biodiesel Production Effluent: Effect of Organic Load and Fill Time on Performance and Methane Production

Selma

Cotrim

Rodrigues

et al. 2010

Appl Biochem Biotechnol

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“…Various techniques have been employed for the removal of dyes from wastewaters. These methods principally include adsorption [2 -5], photocatalytic degradation [6], electrokinetic coagulation [7], advanced chemical oxidation [8,9], ozonation [10], liquid-liquid extraction [11] and biological processes [12,13].…”

Section: Introductionmentioning

confidence: 99%

Removal of the Azo Dye Congo Red from Aqueous Solutions by the Marine Alga Porphyra yezoensis Ueda

Wang

Chen

2009

CLEAN Soil Air Water

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Batch adsorption experiments were carried out using nonliving biomass of Porphyra yezoensis Ueda (red alga) for the removal of Congo red from aqueous solutions at 258C. The effects of process parameters such as contact time, adsorbent concentration and ionic strength were investigated. The raw biomass and Congo red loaded biomass were characterized by Fourier transform infrared spectroscopy (FTIR). The pseudo first order, pseudo second order and intraparticle diffusion models were tested. The results showed that adsorption of Congo red followed pseudo second order kinetics very well. Langmuir and Freundlich equations were applied to the data related to the adsorption isotherms, and the observed maximum adsorption capacities (q m ) were 71.46 mg/g at 258C. Adsorbent concentration and ionic strength had a marked effect on Congo red adsorption.

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“…According to some available research reports (McLaren 1983;Willetts et al 2000;Ong et al 2005;Mohan et al 2007;Sirianuntapiboon et al 2007), treatment of wastewater from textiles, synthetic dye, printing, and dyeing industries has been extensively investigated and explored from different angles. There is a large literature about the decolorization of wastewater containing organic dyes (Hao et al 2000;Kang et al 2000;Panswad and Luangdilok 2000;Park et al 2007).…”

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confidence: 99%

Adsorption–desorption characteristics and pollution behavior of reactive X-3B red dye in four Chinese typical soils

Zhou

Wang

2010

J Soils Sediments

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Purpose Organic dyes have been turned into an important emerging type of chemical pollutants with the development of rural textiles, synthetic dye, printing, and dyeing industries and the continuous release from washing fabrics and clothes in recent decades. In order to assess ecological risk of reactive X-3B red dye as a typical dye, the adsorptive and desorptive traits of the dye in soils were investigated and the environmental factors influencing those processes were examined and discussed. Materials and methods Adsorptive and desorptive isotherms and dynamics of reactive X-3B red dye as a typical emerging pollutant were investigated by the standard batch experiments using four typical soils in China including relatively clean brown earth (burozem), drab soil (cinnamon soil), paddy soil (aquorizem), and red soil (krasnozem) and calculated by mathematical models using the Microsoft Excel software. Results and discussion It was suggested that the adsorptive behavior of reactive X-3B red dye by the four soils can basically be described using the Langmuir equation, and their maximum adsorbing capacity was in the sequence paddy soil > red soil > brown earth > drab soil. The adsorption could be divided into four stages including highspeed adsorption, slowdown adsorption, tardiness adsorption, and zero-approaching adsorption. It was also indicated that the adsorption ability of the dye decreased with the reduction in soil organic matter or air temperature and under neutral, runny, or unwatered conditions. The increase of desorption was observed with the decrease of soil organic matter and the increase of air temperature or soil moisture, while desorption was inhibited by the acidification or basification of soils. The comparative study validated that the basic adsorption-desorption laws of the dye at high concentrations were basically consistent with those at low concentrations. Conclusions It could be concluded that reactive X-3B red dye has the potential properties of persistent organic pollutants with high ecological risk, and its release from contaminated soils and uptake by crops can be disturbed and changed by human activities.

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Some properties of a granular activated carbon-sequencing batch reactor (GAC-SBR) system for treatment of textile wastewater containing direct dyes

Cited by 48 publications

References 22 publications

ASBR Applied to the Treatment of Biodiesel Production Effluent: Effect of Organic Load and Fill Time on Performance and Methane Production

ASBR Applied to the Treatment of Biodiesel Production Effluent: Effect of Organic Load and Fill Time on Performance and Methane Production

Removal of the Azo Dye Congo Red from Aqueous Solutions by the Marine Alga Porphyra yezoensis Ueda

Adsorption–desorption characteristics and pollution behavior of reactive X-3B red dye in four Chinese typical soils

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