Comparison between nanofiltration and ozonation of biologically treated textile wastewater for its reuse in the industry

Bes-Piá, A.; Mendoza–Roca, J.A.; Roig-Alcover, L.; Iborra-Clar, A.; Iborra–Clar, M.I.; Alcaina–Miranda, M.I.

doi:10.1016/s0011-9164(03)00386-2

Cited by 63 publications

(36 citation statements)

References 7 publications

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“…AO 3 /UV treatment of textile effluents was found to be far more effective than O 3 treatment. A COD reduction of 50 mg/L from 400 mg/L was achieved in 30 minutes [119]. Arslan and Balcioglu [25], noted down 67.58% COD reduction in Turquoise Blue G133 and 80.36% reduction in Remazol Black B dye when treated with UV/TiO 2 .…”

Section: Toxicity Measurement Parametersmentioning

confidence: 96%

Production, Characterization and Treatment of Textile Effluents: A Critical Review

Ananthashankar¹

2013

Chem Eng Process Technol

261

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Textile industry is one of the major industries in the world that provide employment with no required special skills and play a major role in the economy of many countries. There are three different types of fibres used in the manufacture of various textile products: cellulose fibres, protein fibres and synthetic fibres. Each type of fibre is dyed with different types of dyes. Cellulose fibres are dyed using reactive dyes, direct dyes, napthol dyes and indigo dyes. Protein fibres are dyed using acid dyes and lanaset dyes. Synthetic fibres are dyed using disperse dyes, basic dyes and direct dyes. The textile industry utilizes various chemicals and large amount of water during the production process. About 200 L of water are used to produce 1 kg of textile. The water is mainly used for application of chemicals onto the fibres and rinsing of the final products. The waste water produced during this process contains large amount of dyes and chemicals containing trace metals such as Cr, As, Cu and Zn which are capable of harming the environment and human health. The textile waste water can cause haemorrhage, ulceration of skin, nausea, skin irritation and dermatitis. The chemicals present in the water block the sunlight and increase the biological oxygen demand thereby inhibiting photosynthesis and reoxygenation process. The effluent water discharged from the textile industries undergoes various physio-chemical processes such as flocculation, coagulation and ozonation followed by biological treatments for the removal of nitrogen, organics, phosphorous and metal. The whole treatment process involves three steps: primary treatment, secondary treatment and tertiary treatment. The primary treatment involves removal of suspended solids, most of the oil and grease and gritty materials. The secondary treatment is carried out using microorganisms under aerobic or anaerobic conditions and involves the reduction of BOD, phenol and remaining oil in the water and control of color. The tertiary treatment involves the use of electrodialysis, reverse osmosis and ion exchange to remove the final contaminants in the wastewater. The major disadvantages of using the biological process are that the presence of toxic metals in the effluent prevents efficient growth of microorganisms and the process requires a long retention time. The advanced oxidation processes is gaining attention in the recent days due to the ability to treat almost all the solid components in the textile effluents. The photo oxidation of the effluents is carried out using H 2 O 2 , combination of H 2 O 2 and UV and Combination of TiO 2 and UV. Advanced oxidation process generates low waste and uses hydroxyl radicals (OH • ) as their main oxidative power. The hydroxyl radicals (OH • ) are produced by chemical, electrical, mechanical or radiation energy and therefore advanced oxidation processes are classified under chemical, photochemical, catalytic, photocatalytic, mechanical and electrical processes. The effluents treated with advanced oxidation process were ...

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Section: Toxicity Measurement Parametersmentioning

confidence: 96%

Production, Characterization and Treatment of Textile Effluents: A Critical Review

Ananthashankar¹

2013

Chem Eng Process Technol

261

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“…Established AOP technologies can be made possible with the help of the following combinations: ozone/hydrogen peroxide (O 3 /H 2 O 2 ), ozone/ultraviolet irradiation (O 3 /UV) and hydrogen peroxide/ultraviolet irradiation (H 2 O 2 /UV). 17 Bes-Piá 17 revealed that both ). This technology is based on the production of hydroxyl radicals (•OH) that ultimately leads to precipitation or decolourisation of the effluent.…”

Section: Advanced Oxidation Treatment Processmentioning

confidence: 98%

Treatment technology for brewery wastewater in a water-scarce country: A review

Jaiyeola¹,

Bwapwa²

2016

S. Afr. J. Sci.

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Water is a scarce resource in many parts of the world; consequently the application of innovative strategies to treat wastewater for reuse is a priority. The brewery industry is one of the largest industrial users of water, but its effluent is characterised by high levels of organic contaminants which require remediation before reuse. Various conventional treatment methods such as anaerobic and aerobic systems, which are effective options because of their high removal efficiencies, are discussed in this study. Other methods such as membrane based technologies, carbon nanotubes, activated carbon, electrochemical methods, algal ponds and constructed wetlands are also analysed. Their efficiency as well as advantages and disadvantages are highlighted and evaluated. Combinations of various treatment processes to improve the quality of the final effluent are discussed.

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“…However, O 3 /UV treatment is recorded to be more effective compared to ozone alone, in terms of COD removal. Bes-Piá et al (2003) documented that O 3 /UV treatment of biologically treated textile wastewater reduced COD from 200-400 mg/L to 50 mg/L in 30 minutes, while, using ozone alone COD reduced to 286 mg/L in same duration. Azbar et al (2004) documented that using O 3 /UV process high COD removal would be achieved under basic conditions (pH=9).…”

Section: O3/uvmentioning

confidence: 99%

Treatment of textile wastewater by advance oxidation processes

2013

Global NEST Journal

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The use of conventional textile wastewater treatment processes becomes drastically challenged to environmental engineers with increasing more and more restrictive effluent quality by water authorities. Conventional treatment such as biological treatment discharges will no longer be tolerated as 53% of 87 colours are identified as non-biodegradable. Advanced oxidation processes hold great promise to provide alternative for better treatment and protection of environment, thus are reviewed in this paper. An overview of basis and treatment efficiency for different AOPs are considered and presented according to their specific features.

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Comparison between nanofiltration and ozonation of biologically treated textile wastewater for its reuse in the industry

Cited by 63 publications

References 7 publications

Production, Characterization and Treatment of Textile Effluents: A Critical Review

Production, Characterization and Treatment of Textile Effluents: A Critical Review

Treatment technology for brewery wastewater in a water-scarce country: A review

Treatment of textile wastewater by advance oxidation processes

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