Activated Carbon Addition to an Activated Sludge Model Reactor for Color Removal from a Cotton Textile Processing Wastewater

Pala, Ayşegül; Tokat, Enis

doi:10.1061/(asce)0733-9372(2003)129:11(1064)

Cited by 11 publications

(8 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, they noted that the COD of wastewater can be reduced from around 2000 mg/L to around 150-300 mg/L with the proper designed activated sludge process. Similarly, Pala and Tokat [10] reported that around 95% COD removal from a textile industry wastewater can be achieved in an activated sludge reactor. Although high COD removal efficiency is possible with conventional wastewater processes, the color removal is not so effective and the main removal mechanism is indicated to be adsorption [8][9][10].…”

Section: Introductionmentioning

confidence: 96%

Biological treatment and nanofiltration of denim textile wastewater for reuse

Şahinkaya

Uzal

Yetış

et al. 2008

Journal of Hazardous Materials

104

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 96%

Biological treatment and nanofiltration of denim textile wastewater for reuse

Şahinkaya

Uzal

Yetış

et al. 2008

Journal of Hazardous Materials

104

View full text Add to dashboard Cite

“…They noticed that the differences in phenol sorption were likely a result of the activated carbon and not differences in uptake by the bacteria. Second, Pala and Tokat (2003) observed that concentrations of organic halogens (AOX) in effluent showed a decreasing trend with the addition of PAC into the activated sludge. This indicated the reduction in AOX concentration and, as a result, the removal of toxicity.…”

Section: Discussionmentioning

confidence: 99%

Enhancing the Performance of Sequencing Batch Reactors by Adding Crushed Date Seeds to Remove High Concentrations of 2,4‐Dinitrophenol

Al-Mutairi

2011

Water Environment Research

View full text Add to dashboard Cite

BSTRACT: Passively treated abandoned mine drainage (AMD) is a promising alternative to fresh water as power plant cooling water system makeup water in mining regions where such water is abundant. Passive treatment and reuse of AMD can avoid the contamination of surface water caused by discharge of abandoned mine water, which typically is acidic and contains high concentrations of metals, especially iron. The purpose of tbis study was to evaluate the feasibility of reusing passively treated AMD in cooling systems with respect to corrosion control through laboratory experiments and pilot-scale field testing. The results showed that, with the addition of the inhibitor mixture orthophosphate and tolyltriazole, mild steel and copper corrosion rates were reduced to acceptable levels (<0.127 mm/y and <0.0076 mm/y, respectively). Aluminum had pitting corrosion problems in every condition tested, while cupronickel showed tbat, even in the absence of any inhibitor and in the presence of the biocide monochloramine, its corrosion rate was still very low (0.018 mm/y). Water Environ. Res., 83, 807 (2011).

show abstract

“…Pala and Tokat found that addition of powdered activated carbon (PAC) to the mixed liquor of activated sludge treatment plants can be used to remove the color from wastewater. The results indicated that 100 mg/L PAC was sufficient to remove the maximum color measured (up to 50 m −1 ) from the wastewater [33]. Eckenfelder declared that the COD and color removal efficiencies for only biological treatment for an industrial wastewater containing heavy metals, organic carbon, and color, were 28.6-67%, while the removal efficiencies with 50, 100, 250, and 500 mg/L PAC addition were 46-72, 69.2-78.4, 88.2-94, and 93-97.7%, respectively [34].…”

Section: Desalination and Water Treatmentmentioning

confidence: 96%

“…Most textile factory treatment plants use biological treatment alone, especially extended aeration activated sludge systems. However, activated sludge systems are not effective for complete dye removal from wastewater due to the textile dyes which are difficult to biodegrade [33]. So the adsorption process is added after the biological treatment as a tertiary treatment.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Pilot-scale treatment of textile wastewater by combined biological-adsorption process

Mirbagheri¹,

Charkhestani²

2016

Desalination and Water Treatment

View full text Add to dashboard Cite

A B S T R A C TDye pigments are the main pollutants in textile industry wastewaters. Dye reduction or completely removal from the wastewater is the biggest challenge in this industry. This study was carried out by combined biological-adsorption system. Activated sludge with extended aeration as biological and slow filtration as adsorption process was used. In activated sludge system, different hydraulic retention times (HRT) were investigated (18, 24, 30, and 36 h). The results revealed that by increasing the HRT, the biological system could remove about 80% of chemical oxygen demand (COD) and 33.5% of dye pigments. Then the effluent of the biological system comes to the slow filtration pilot to remove the dye completely. In this stage, beside of granular activated carbon (GAC) that is very high-cost adsorbent, saw dust and inorganic soils, such as kaolin and talc were tested simultaneously. According to the results, the bed that contains GAC by 91%, kaolin 78%, saw dust 64.4%, and talc 55.5% removal showed the highest efficiency, respectively. Adsorption data were modeled using Langmuir and Freundlich isotherms. The analysis showed that Freundlich isotherm reasonably fit the experimental data for all the adsorbents. Finally, the combined biological-adsorption system could remove about 98.2, 95.6, 92.9, and 91.1% of COD by using GAC, kaolin, saw dust, and talc as an adsorbent, respectively. By considering the cost-benefit analysis and availability of the adsorbents, saw dust, and inorganic soils, such as kaolin can be the alternative choice instead of GAC to combine with activated sludge system in order to recycle the effluent of the textile industry wastewater and save huge amount of water.

show abstract

Activated Carbon Addition to an Activated Sludge Model Reactor for Color Removal from a Cotton Textile Processing Wastewater

Cited by 11 publications

References 4 publications

Biological treatment and nanofiltration of denim textile wastewater for reuse

Biological treatment and nanofiltration of denim textile wastewater for reuse

Enhancing the Performance of Sequencing Batch Reactors by Adding Crushed Date Seeds to Remove High Concentrations of 2,4‐Dinitrophenol

Pilot-scale treatment of textile wastewater by combined biological-adsorption process

Contact Info

Product

Resources

About