Treatment of cotton textile wastewater using lime and ferrous sulfate

Georgiou, D.; Aivazidis, A.; Hatiras, J.; Gimouhopoulos, K.

doi:10.1016/s0043-1354(02)00481-5

Cited by 174 publications

(94 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Solid wastes are not found to be hazardous in general. However, the emptied chemical containers may contain traces of harmful substances [57,58]. Sources and types of solid wastes produced in mechanical operations and dyeing and finishing operations are listed below in Table 21.…”

Section: Water Use and Textile Wastes Producedmentioning

confidence: 99%

See 1 more Smart Citation

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

Ananthashankar¹

2013

Chem Eng Process Technol

258

View full text Add to dashboard Cite

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 ...

show abstract

Section: Water Use and Textile Wastes Producedmentioning

confidence: 99%

“…Pollutants are also emitted from residues of fibre preparation during the heat settling process. Gases can also be emitted from chemicals during the dyeing process [58]. Some of the major gaseous pollutants are listed in Table 22.…”

Section: Water Use and Textile Wastes Producedmentioning

confidence: 99%

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

Ananthashankar¹

2013

Chem Eng Process Technol

258

View full text Add to dashboard Cite

show abstract

“…The high pH caused the charge of the coagulating species become less positive and as a result, less attracted to anionic organic compounds [13,[16][17]. Besides, the solubility of the metal coagulant-precipitate solids was found to be strongly dependent on pH and precipitation was formed under acidic conditions [18]. Nevertheless, instead of adjusting the pH to reduce and optimise the ferrous sulphate dosage that will need the addition of acid, it will still economical to conduct the treatment at the existing pH range.…”

Section: Methodsmentioning

confidence: 99%

“…Ferrous sulphate is acidic in nature which will increase the soil acidity if the treated water and sludge is apply for irrigation [18][19]. Nevertheless, the pH of aerobic feed water is in alkaline range that will have buffering effect to the lowering of pH when applying the ferrous sulphate dosage for the physiochemical treatment.…”

Section: Ph and Metal Contentmentioning

confidence: 99%

Palm Oil Mill Effluent Tertiary Treatment By Physicochemical Treatment Using Ferrous Sulphate

Asis

Arifin

Ngteni

et al. 2016

IJEE

View full text Add to dashboard Cite

A B S T R A C TThe palm oil milling industry in Malaysia will be imposed with more stringent treated waste water discharge requirement from currently at BOD of 100 ppm to BOD of 50 ppm and gradually to BOD of 20 ppm. Study was conducted to use Ferrous Sulphate as more economical coagulant to reduce the biological load for tertiary treatment in palm oil mill effluent treatment at laboratory and pilot scale facility to comply with the proposed new requirement. The feed water that was aerobically treated POME with BOD of below 100 ppm was treated with various dosage of ferrous sulphate, from 250 to 2250 ppm. It was found that at laboratory jar-test, the required ferrous sulphate dosage to meet BOD-50 ppm requirement was at 750 ppm while BOD-20 ppm requirement was achieved when the ferrous sulphate dosage was at 1,750 ppm and did not produce hazardous activated sludge. The laboratory findings was scaled-up to pilot scale facility with the capacity of 7 ton/hour to evaluate the physicochemical tertiary treatment based on continuous system. Ferrous sulphate dosage at 1,000 ppm and 1,750 ppm were able to comfortably comply with the discharge limit of BOD-50 ppm and BOD-20 ppm, respectively.

show abstract

“…Ever since 1977, when Frank and bard [2,3] first examined the possibilities of using TiO 2 to decompose cyanide in water, there has been increasing interest in environmental applications Treatment plants have applied additional processes, like coagulation, or adsorption for the removal of the contaminants [4][5][6]. However, these processes simply transfer pollutants from their water matrix into bio-solids, rather than completely eliminating these chemicals.…”

Section: Introductionmentioning

confidence: 99%

Degradation of Textile Dyes Ponceau-S and Sudan IV Using RecentlyDeveloped Photocatalyst, Immobilized Resin Dowex-11

Meena¹,

Pachwarya²,

Meena³

et al. 2009

American J. of Environmental Sciences

View full text Add to dashboard Cite

Problem statement:In present study, we selected a model dyes Ponceau S and Sudan IV, to test a recently developed photo catalyst methylene blue immobilized resin dowex-11. Approach: This is a light-activated process that has been successfully applied to remove organic and inorganic dyes of textile industries. Results: The reactor, made of glass slides (tubes) coated with a thin-film of methylene blue immobilized resin dowex-11 with the help of a suitable and non-reactive adhesive. Dye solution was continues recycles from reactor for 3 h in a recirculation mode under various conditions (with/without catalyst, with/without light radiation, variation in catalyst amount, dyes concentration, light intensities and pH). Conclusion: The ponceau S and sudan-IV, removal efficiency was evaluated using UV/Visible spectrophotometer at λ max = 514±2 nm Ponceau S and λ Max = 520 nm respectively removal efficiency results (99%) after 3 h at pH 9) showed that new photo catalyst, methylene blue immobilized resin dowex-11 provided a promising technology to improve the quality of effluent from textile wastewater treatment plants.

show abstract

Treatment of cotton textile wastewater using lime and ferrous sulfate

Cited by 174 publications

References 0 publications

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

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

Palm Oil Mill Effluent Tertiary Treatment By Physicochemical Treatment Using Ferrous Sulphate

Degradation of Textile Dyes Ponceau-S and Sudan IV Using RecentlyDeveloped Photocatalyst, Immobilized Resin Dowex-11

Contact Info

Product

Resources

About