Minimization of organic chemical load in direct dyes effluent using low cost adsorbents

Kaushik, C. P.; Tuteja, Ravinder; Kaushik, Namrata; Sharma, J. N.

doi:10.1016/j.cej.2009.07.042

Cited by 44 publications

(33 citation statements)

References 10 publications

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“…So, due attentions have been paid to search for effective, low-cost and renewable adsorbents. In recent years, many biological materials, such as orange bagasse [8], plant leaves [9], saw dust [10] and maize cob [11], have been applied as adsorbents to adsorb dyes from wastewaters. As a type of renewable crop wastes, straw materials are especially abundant in nature and rich in various natural polymer materials, such as cellulose and lignin.…”

Section: Introductionmentioning

confidence: 99%

Removal of dyes from aqueous solutions by straw based adsorbents: Batch and column studies

Zhang

Yan

et al. 2011

Chemical Engineering Journal

142

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Section: Introductionmentioning

confidence: 99%

Removal of dyes from aqueous solutions by straw based adsorbents: Batch and column studies

Zhang

Yan

et al. 2011

Chemical Engineering Journal

142

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“…Other more economical materials have been studied for the adsorption of SD from synthetic wastewaters, replacing the AC. For example, they are represented by clay materials (bentonite, kaolinite), siliceous materials (zeolites, alunite, perlite), and industrial waste products (i.e., waste carbon slurries, metal hydroxide sludge, coffee wastes) [28][29][30][31][32]. The unavailability of such materials with the desired specifications can be an obstacle detaining its utilization.…”

Section: Adsorbent Resourcesmentioning

confidence: 99%

Low-cost Adsorbents Derived from Agricultural By-products/Wastes for Enhancing Contaminant Uptakes from Wastewater: A Review

Sulyman

Namieśnik

Gierak

2017

Pol. J. Environ. Stud.

209

112

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A major threat to the comfort of human life has been imposed by increased industrialization and urbanization. The generation and disposal of huge amounts of toxic materials and pollutants have heavily contaminated our environment. Some Organics such as synthetic dyes (SD) and heavy metals (HM) are becoming increasingly prevalent as the most dangerous pollutants in soil and surface water environments. They are causing great concern worldwide due to their toxicity to many life forms.Environmentally friendly utilization of agricultural by-products/waste materials either as raw materials or in production of so-called activated carbons (AC) is an important issue. Because it is apparent from our literature review that the main factors characterizing these materials are their affordability, local availability, and efficiencies in removing many unwanted toxics and pollutants, they therefore could be utilized instead of more conventional but expensive adsorbent materials, particularly in developing countries where many industries lack appropriate individual sewage treatment systems; even where they exist, they lack satisfactory functioning and maintenance because of the lack of good budgets.A number of case studies are supplied in this review. These case studies have pointed to the efficient removal of SD/HM ions from aqueous solutions by the agricultural by-products/wastes in the form of a raw material, signifying spent tea leaves (STL) as a good example. Besides, the efficient removal of such ions by AC produced from these agricultural by-products/wastes has also been given in detail, suggesting a variety of AC agricultural by-products/wastes sources. Both kinds are widely used adsorbents in the treatment of wastewaters. Our review has shown that these adsorbents are characterized by many exceptional physical and chemical features that make them widely used adsorbents in the treatment of wastewaters. The adsorption efficiencies by these substances were also affected by the characteristics of AC, which depend on the physical and chemical properties of the precursor (i.e., agricultural by-products/wastes) as well as on the activation method applied, which is either chemical or physical. The structural properties of the resulting

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“…Figure 4 shows the FTIR spectra of the CSAC/Cl composite adsorbent prepared. FTIR analysis usually is carried out to obtain chemical identification of the sample (Kaushik et al, 2009). Generally, the transmittance of the CSAC/Cl composite adsorbent showed major peaks detected at 3471 cm-1 indicating OH stretching vibration, followed by alkynes stretching bond indicating large presence of hydrophobic sites in the CSAC/Cl composite adsorbent.…”

Section: Characterization Of Csac/cl Composite Adsorbentmentioning

confidence: 99%

Preparation and Characterization of Composite Embedded Clinoptilolite for the Removal of Color and Lead from Textile Waste Water

Kamaruddin¹,

Yusoff

Aziz³

et al. 2013

IJSRIN

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Abstract.A new composite adsorbent synthesized from coconut shell activated carbon (CSAC) and clinoptilolite (Cl) for the removal of color and heavy metals from real textile waste water was investigated. OPC as the binder agent held the advantages of CSAC and CL which improved the adsorption capacities of color and lead (Pb). The prepared composite adsorbent with interfacial pores show better mass transfer activity proven by its mechanical properties and stability. The surface area of the CSAC/Cl composite adsorbent was observed at 39.32 m 2 /g having pore diameter of 3.38 nm which in the mesoporous class. The equilibrium data was best fitted to Langmuir. Meanwhile, the kinetics model of pseudo-second-order was favorable with high correlation coefficient more than 0.98 for both color and Pb adsorption. The characterization of the CSAC/Cl composite adsorbent indicates that the presence of SiO 2 (clinoptilolite) in the mixtures influenced the adsorption properties and chemical functional group whereas OPC played a significant role in strength development of the adsorbent. The abstract should be informative and completely self-explanatory, briefly present the topic, state the scope of the experiments, indicate significant data, and point out major findings and conclusions.

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Minimization of organic chemical load in direct dyes effluent using low cost adsorbents

Cited by 44 publications

References 10 publications

Removal of dyes from aqueous solutions by straw based adsorbents: Batch and column studies

Removal of dyes from aqueous solutions by straw based adsorbents: Batch and column studies

Low-cost Adsorbents Derived from Agricultural By-products/Wastes for Enhancing Contaminant Uptakes from Wastewater: A Review

Preparation and Characterization of Composite Embedded Clinoptilolite for the Removal of Color and Lead from Textile Waste Water

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