Adsorptive removal of Megenta MB cold brand reactive dye by modified activated carbons derived from agricultural waste

Parvathi, C.

doi:10.17485/ijst/2010/v3i4.5

Cited by 11 publications

(6 citation statements)

References 6 publications

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“…The fruit peels have been used as potential adsorbents for the removal of dyes [26]. Parvathi and Maruthavanan et al [27] conducted adsorption studies using tapioca peel for the removal of Megeta MB dye by varying the adsorbent dose, solution pH and the contact time. They have reported that higher removals were obtained at solution pH 7 and the equilibrium was reached within 120 minutes of the contact time.…”

Section: Fruit Peelsmentioning

confidence: 99%

Treatment of Textile Dyeing Effluent Using Agriculture Waste Based Adsorbents - A Review

Kharat

Gupta

2022

CSIJ

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Objective: Removal of colour from the textile dyeing effluent is a major problem due to high tinctorial value, complex structure of the dyes, toxicity and presence of metals in some dyes. The colouring matter has to be removed from the effluent before its discharge as it constitutes the major fraction of pollution. The spent dyes in the textile effluent have to be removed before disposal as they constitutes major fraction of pollution. Review of waste based adsorption of the spent dyes, performance, economics involved and disposal options for the spent adsorbents are the objectives of the present work. Methods: Various techniques are used for the removal of colour including adsorption. Although the activated carbon is an ideal adsorbent, it is expensive for effluent treatment due to its high production and regeneration costs. High cost of activated carbon has led to the search for alternate non-conventional adsorbents. Attempts have been made by researchers to use the non-conventional, low-cost and naturally occurring waste materials as adsorbents. The findings are based on literature survey and authors’ experience. Findings: This review seeks to give an overview of the agriculture waste based adsorbents together with physical and chemical processing needs, adsorption parameters including mechanisms and the adsorption potential of various adsorbent-adsorbate systems for removal of different dyes from the effluents. Comparative studies conducted with synthetic effluents as well real textile dyeing effluent are also included. The cost involved in the dyeing effluent treatment is always a concern for the textile dyeing industries. The cost issue can be addressed using the waste based adsorbents for which an economics have been presented. Conclusion: The gaps between practices and the present research works have been identified and highlighted along with further research needs for treatment of the dyeing effluents. The waste based adsorbents are mainly agricultural residues and combustible. The spent adsorbents can be reused as fuel in the boiler furnace that can offset the expenses on fuel to some extent.

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Section: Fruit Peelsmentioning

confidence: 99%

Treatment of Textile Dyeing Effluent Using Agriculture Waste Based Adsorbents - A Review

Kharat

Gupta

2022

CSIJ

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“…IT showed Erichrome black T dye removal efficiency was 90% at a dye concentration of 50 mg/L and a dsorbent dose of 0.004 g/cc [166]. Higher percentage removal of Mageta MB dye was attained by the use of tapioca peel powder at pH 7 within the contact time of 120 mins [167]. The adsorption capacities decreased in the order: methyl orange > methylene blue > Rhodamine B > Congo red > methyl violet >amido black 10B for adsorption of dyes from aqueous solutions by using banana and orange peel.…”

Section: Fruit Peelsmentioning

confidence: 99%

Dyes Removal Using Novel Sorbents – A Review

Amalraj

Ramsenthil

Durai

et al. 2021

JPRI

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Efficient and economical treatment for color removal in the effluent of dyeing units and the dyestuff production units have always need an emerging technologies. In general physical methods such as adsorption, ion exchange and filtration/coagulation methods, chemical methods like ionization, Fenton reagent, photo catalytic & biological processes namely aerobic/anaerobic degradation, biosorption are used for dye removal. Adsorption using solid materials (i.e.) adsorbents, considered as an effective process for color removal, because of its higher efficiency over other processes. Researchers made an attempt to use various non-conventional, low-cost, naturally-occurring biomasses as adsorbent, which may be mineral, organic or biological materials. These include fruit peels, seeds, leaves, bark, sawdust, straw, ash sludge and other materials that are available in abundant quantity. The various methods showed the color removal capability of adsorbents; mainly based on the processing methods and the variety of dye. In this review, various dye adsorbents and their capacity for removing the dyes from various effluents is highlighted.

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“…Most synthetic dyes are recalcitrant and toxic compounds that are used in many industries such as the textile industry. More than 70,000 tons of synthetic dyes are produced annually worldwide and discarded in the industrial effluents but not all the produced dyes are discarded (Parvathi and Maruthavanan 2010). About 50% of the used reactive dyes are discharged into the environment through industrial effluents (Fontana et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Discoloration and mineralization of a textile azo dye using a hybrid UV/O3/SBR process

2021

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Most synthetic dyes are toxic and hardly biodegradable compounds that enter the environment mainly through the discharged of non-treated textile industry effluents. The present study investigated the removal of the textile monoazo dye Reactive Red 198 (RR-198) from aqueous solutions using the ultraviolet light and ozonation alone and in combination (i.e., UV/O3) followed by a Sequencing Batch Reactor (SBR). The pH (5 ≤ pH ≤ 9) and dye initial concentration (50–300 mg/L) parameters were optimized in the ozonation process at reaction time of 0–60 min. Then, TOC removal and dye discoloration percentage was compared with the O3, UV and O3/UV processes. In order to compare the performance of the SBR in dye discoloration of RR-198 and TOC removal, four types of effluent, including Raw dye, O3-pretreated dye, UV-treated dye and UV/O3-pretreated dye were separately treated in the SBR system. In the ozonation process, by increasing the pH and reducing the initial dye concentration increased the discoloration percentage. The highest dye discoloration percentage and TOC removal obtained in the hybrid UV/O3/SBR process. Combining biological systems and Advanced Oxidation Processes is an appropriate option for the decomposition of resistant pollutants and increasing the biodegradability of these compounds and is applicable in the water and wastewater industry.

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Adsorptive removal of Megenta MB cold brand reactive dye by modified activated carbons derived from agricultural waste

Cited by 11 publications

References 6 publications

Treatment of Textile Dyeing Effluent Using Agriculture Waste Based Adsorbents - A Review

Treatment of Textile Dyeing Effluent Using Agriculture Waste Based Adsorbents - A Review

Dyes Removal Using Novel Sorbents – A Review

Discoloration and mineralization of a textile azo dye using a hybrid UV/O3/SBR process

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