Treatment of Textile Wastewater by Coagulation Precipitation Method

Sabur, M. A.; Khan, Aziz; Safiullah, S.

doi:10.3329/jsr.v4i3.10777

Cited by 38 publications

(10 citation statements)

References 14 publications

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“…Effluents comprise large quantities of toxic and difficult to treat substances derived from the dyeing and finishing processes. (Al‐Kdasi, Idris, Saed, & Guan, ; Sabur, Khan, & Safiullah, ). The most pertinent problem of textile industry wastewater is the use of dye to impart color (Qadir & Chhipa, ).…”

Section: Introductionmentioning

confidence: 99%

A review of textile industry: Wet processing, environmental impacts, and effluent treatment methods

Madhav

Ahamad

Singh

et al. 2018

Environmental Quality Mgmt

311

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The word “textile” means to weave and was taken from the Latin word “texere.” Nowadays, textiles not only fulfill humankind's basic necessity for clothing, they also allow individuals to make fashion statements. As one of the oldest industries, the textile industry occupies a unique place in India. It is responsible for 14% of the total industrial manufacture in India. However, the textile industry is also considered to be one of the biggest threats to the environment. Pretreatment, dyeing, printing, and finishing operations are among the various stages of the industrial textile manufacturing process. These fabrication operations not only utilize huge quantities of power and water, they also generate considerable amounts of waste. The textile industry utilizes a number of dyes, chemicals, and other materials to impart the required qualities to the fabrics. These operations produce a significant amount of effluents. The quality of effluents is such that they cannot be put to other uses, and they can create environmental problems if they are disposed of without appropriate treatment. This review discusses different textile processing stages, pollution problems associated with these stages, and their eco‐friendly alternatives. Textile wet processing is described in detail, as it is the key process in the industry and it also generates the greatest amount of pollutants in textile processing. The environmental impact of textile effluents is discussed, as textile effluents not only impose negative effects on the quality of water and soil, they also imperil plant and animal health. In this paper, various methods for treating textile effluents are described. Discussion of physical, chemical, biological, and advanced treatment technologies of effluent treatment are included in this paper.

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Section: Introductionmentioning

confidence: 99%

A review of textile industry: Wet processing, environmental impacts, and effluent treatment methods

Madhav

Ahamad

Singh

et al. 2018

Environmental Quality Mgmt

311

View full text Add to dashboard Cite

show abstract

“…Poor coagulant species does not participate effetivelly in coagulation and consequently poor COD removal takes place. In earlier studies reported by various investigators for treatment of pulp and paper mill wastewater [25], MWW [26], distillery wastewater [20] and textile industry effluent [27], the treatment efficiency was much in the range of pH 5 to 8.…”

Section: Amentioning

confidence: 95%

Coagulation Followed By Ion Exchange to Treat Domestic Sewage

Acharya¹,

Thakur²,

Kumar³

2019

IJRTE

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The pollutants contained in domestic sewage (DS) was separated using coagulation in first stage followed by ion exchange (IE) in second stage. The coagulants FeCl3 , Alum and Al2 (SO4 )3 .16H2O were used for treatment. Among these, performance of Al2 (SO4 )3 .16H2O and FeCl3 was equally good in term of chemical oxygen demand (COD) removal at their optimum pH and optimum dose. COD values were reduced to 78 and 80 mg/dm3 with Al2 (SO4 )3 .16H2O and FeCl3 from initial value 256 mg/dm3 . The FeCl3 coagulant treated DS was further treated using IE process, which was able to reduce hardness upto 10 mg/dm3 from initial value 580 mg/dm3 . Settling of FeCl3 treated sludge was found to best and design of settler has been presented from experimental data.

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“…Further increase of the alum dose from 50 to 60 mM decreases COD reduction by 78% and color reduction by 72%, respectively. Therefore, the optimum dose of alum that enhanced maximum removal of COD and color was taken as 50 mM [46].…”

Section: Effect Of Dosing (Current Density and Mass Loading)mentioning

confidence: 99%

Suitability of aluminum material on sugar industry wastewater with chemical and electrochemical treatment processes

Sahu

2019

Int J Ind Chem

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Aluminum is a valuable material, which can be used for water and wastewater treatment. It exists in metal as well as in salt form. The efficiency of water and wastewater treatment depends upon the technology applied to treat. Sugarcane industry is coming under those industries which have a large amount of freshwater and release large amount of effluent. The goal of this research work is to study the behavior of aluminum metal and salt for the treatment of sugar industry wastewater on chemical oxidation and electrochemical oxidation. The effect of pH, dosing, temperature and catalysis on metal and salt has been also studied with both treatment methods. The results show that maximum 90% of chemical oxygen demand and 94% of color removal can be achieved with an aluminum electrode (electrocoagulation) at optimum conditions, pH 7, current density 178 A/m 2 , electrode distance 20 mm, and salt solution 0.5 M NaCl. In the same way, 81% chemical oxygen demand and 85% color removal were achieved with alum for the 0.5 M lime solution, at 50 mM mass loading, 21 °C operating temperature and optimum pH of 7, respectively. The sludge generated after treatment was also analyzed with settling filtration, thermal, FTIR and SEM.

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Treatment of Textile Wastewater by Coagulation Precipitation Method

Cited by 38 publications

References 14 publications

A review of textile industry: Wet processing, environmental impacts, and effluent treatment methods

A review of textile industry: Wet processing, environmental impacts, and effluent treatment methods

Coagulation Followed By Ion Exchange to Treat Domestic Sewage

Suitability of aluminum material on sugar industry wastewater with chemical and electrochemical treatment processes

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