Kinetic and adsorption study of acid dye removal using activated carbon

Gómez, V.; Larrechi, M. Soledad; Callao, M. Pilar

doi:10.1016/j.chemosphere.2007.03.076

Cited by 344 publications

(146 citation statements)

References 28 publications

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“…The removal of anionic dyes is to be considered as the most challenging task as they are water soluble and produce very bright colours in water with acidic properties. It has been estimated that the total dye consumption in textile industry worldwide is more than 10,000 tonnes per year and about 10-15% of these dyes are released as effluents during the dyeing processes [1,2]. These effluents can cause potential pollutants to human beings and to aquatic life.…”

Section: Introductionmentioning

confidence: 99%

Review on Dye Removal from Its Aqueous Solution into Alternative Cost Effective and Non-Conventional Adsorbents

Dawood¹,

Sen

2013

Journal of Chemical and Process Engineering

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Dyes are complex organic compounds which are used by various industries to colour their products. These dyes are purged from various industrial sources such as textile, cosmetic, paper, leather, rubber and printing industries. Wastewater effluents contain dyes which may cause potential hazards to the environment. Some of these dyes are toxic, carcinogenic and can cause skin and eye irritation. Therefore, many researchers have been studied the effectiveness of dyes removal from aqueous solution by different separation methods. Different separation techniques have been used for the treatment of dye-bearing wastewater such as adsorption, coagulation/flocculation, advanced oxidation technologies, ozonation, and membrane-filtration, aerobic and anaerobic degradation. All dye separation techniques have their own limitation in terms of design, operation efficiency and total cost. This review paper provides extensive literature information about dyes, its classification and toxicity together with various treatment methods into dye adsorption characteristics of several non-conventional cost effective sustainable adsorbents. The mechanism and the effects of various physio-chemical process parameters on dye adsorption are presented here.

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Section: Introductionmentioning

confidence: 99%

Review on Dye Removal from Its Aqueous Solution into Alternative Cost Effective and Non-Conventional Adsorbents

Dawood¹,

Sen

2013

Journal of Chemical and Process Engineering

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“…The presence of very low concentrations of dyes in these effluents (less than 1 ppm for some dyes) is highly visible and undesirable (Crini, 2006;Nigan et al, 2000). Colour affects the nature of the water and inhibits the penetration of sunlight into the receiving water bodies, which has a deleterious effect on photosynthesis and thus aquatic life (Arami et al, 2005;Gómez et al, 2007). Some dyes are also carcinogenic and mutagenic (Namasivayam and Kavitha, 2002).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of remazol brilliant blue on an orange peel adsorbent

Mafra

Igarashi‐Mafra

Zuim

et al. 2013

Braz. J. Chem. Eng.

136

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-A novel orange peel adsorbent developed from an agricultural waste material was characterised and utilised for the removal of Remazol Brilliant Blue from an artificial textile-dye effluent. The adsorption thermodynamics of this dye-adsorbent pair was studied in a series of equilibrium experiments. The time to reach equilibrium was 15 h for the concentration range of 30 mg L -1 to 250 mg L -1 . The adsorption capacity decreased with increasing temperature, from 9.7 mg L -1 at 20 °C to 5.0 mg L -1 at 60 °C. Both the Langmuir and Freundlich isotherm models fitted the adsorption data quite reasonably. The thermodynamic analysis of dye adsorption onto the orange peel adsorbent indicated its endothermic and spontaneous nature. Thus, the application of orange peel adsorbent for the removal of dye from a synthetic textile effluent was successfully demonstrated.

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“…Bu boyaların yaklaşık % 10-15'inin boyama işlemleri sırasında atık olarak bırakıldığı tahmin edilmektedir. Boya üretim endüstrisi ve tekstil endüstrisi gibi boya ve pigmentleri kullanan diğer birçok sanayiden açığa çıkan atıksularda hem renk hem de organik madde içeriği yüksektir [2]. Bu atıksular, yüksek konsantrasyonlarda boyar madde, surfaktan, kompleks yapıda inorganik ve organik bileşikler nedeniyle karmaşık bir yapıdadır.…”

Section: Introductionunclassified

Boyalı Suların Çitosan Koagülasyonu ile Arıtımında Box-Wilson İstatistiksel Tasarım Yönteminin Kullanılması

Akdemir¹

2018

deufmd

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Abstract:The most important pollutant sources in the textile industry wastewater are the dyes used in the process. In this study, coagulation method with chitosan was applied for color and COD removal from dyeing wastewater. In the experimental studies, the Box Wilson statistical design method was used and the effects of dye concentration, chitosan concentration and precipitation time after coagulationflocculation on color and COD removal efficiency were investigated. The dye concentration was selected to be 50-200 mg/l, chitosan concentration 50-200 mg/l and precipitation time 30-120 minutes. The highest color removal efficiency (70%) was determined as 50 mg/l of dye concentration, 125 mg/l of chitosan concentration and 90 minutes of precipitation time. When the COD removal was examined, the highest COD removal efficiency (60%) was obtained at 200 mg/l of dye concentration, 200 mg/l of chitosan concentration and 30 minutes of precipitation time.

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Kinetic and adsorption study of acid dye removal using activated carbon

Cited by 344 publications

References 28 publications

Review on Dye Removal from Its Aqueous Solution into Alternative Cost Effective and Non-Conventional Adsorbents

Review on Dye Removal from Its Aqueous Solution into Alternative Cost Effective and Non-Conventional Adsorbents

Adsorption of remazol brilliant blue on an orange peel adsorbent

Boyalı Suların Çitosan Koagülasyonu ile Arıtımında Box-Wilson İstatistiksel Tasarım Yönteminin Kullanılması

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