Journals / Ekoloji / 2006 / Cilt: 15 - Sayı: 59

Treatability of textile industry wastewater with high COD content by chemical-precipitation and adsorption

Yüksek KOİ içerikli tekstil atıksularının kimyasal çökeltim ve adsorpsiyon yöntemleriyle arıtılabilirliği

Journal
Ekoloji
Pages
27–31
Publication Date
2022-10-17
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

On the basis of this information, adsorption columns were designed and 6+1 columns (3.5 m height and 0.75 m diameter) were found to be satisfactory.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Chemical precipitation and adsorption methods were used for COD removal from textile wastewaters which contain high (41.120 mg/L) COD content and COD removal efficiencies of these processes were determined.
📊
Key Findings & Data:In physicocehmical treatability studies alum (1250 mg/L), alum (8000 mg/L)+non-ionic PE (4 mg/L) and PAC (2500 mg/L) coagulants were used and COD removal efficiencies were determined as 54%, 56% and 60%, respectively.
💡
Conclusion & Impact:On the basis of this information, adsorption columns were designed and 6+1 columns (3.5 m height and 0.75 m diameter) were found to be satisfactory.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Chemical precipitation and adsorption methods were used for COD removal from textile wastewaters which contain high (41.120 mg/L) COD content and COD removal efficiencies of these processes were determined. In physicocehmical treatability studies alum (1250 mg/L), alum (8000 mg/L)+non-ionic PE (4 mg/L) and PAC (2500 mg/L) coagulants were used and COD removal efficiencies were determined as 54%, 56% and 60%, respectively. As a result of the study, PAC were selected as a best coagulant at 1000 mg/L dosage with a 52% COD removal efficiency. In adsorption experiments, Jacobi granular actived carbon (0.5-1 mm) was used and adsorption capacity was determined from Langmuir adsorption isoterm, as 333 mg COD/g GAC (Q°). On the basis of this information, adsorption columns were designed and 6+1 columns (3.5 m height and 0.75 m diameter) were found to be satisfactory.

Özet

Bu çalışmada, 41,120 mg/L KOİ içeren ve biyolojik ayrışabilirliği oldukça düşük olan tekstil atık suyu kimyasal çökeltim ve adsorpsiyon yöntemleriyle arıtılmış ve bu proseslere bağlı olarak KOİ giderme verimleri belirlenmiştir. Alüm (1250 mg/L), alüm (8000 mg/L)+non-iyonik PE (4 mg/L) ve PAC (2500 mg/L) ile yapılan kimyasal çökeltim sonunda sırasıyla; %54, %56 ve %60 KOİ giderme verimleri elde edilmiştir. Yapılan çalışmalar sonucunda en uygun doz olarak 1000 mg/L PAC seçilmiş, bu dozla yapılan arıtılabilirlik sonucunda %52 oranında KOİ giderilmiştir. Elde edilen atık suda 0,5-1 mm boyutunda Jacobi marka GAC kullanılarak Langmuir izotermi yardımıyla adsorpsiyon kapasite değeri belirlenmiş (Q°= 333 mg KOİ/g GAC) ve bu verilere dayanarak 200 mg/L KOİ deşarj kriterini sağlayacak şekilde adsorpsiyon kolonları boyutlandırılmıştır. Boyutlandırma sonucunda 0,75 m çapında, 3,5 m yüksekliğinde, 7 adet (6 asıl+1 yedek) adsorpsiyon kolonu gerektiği bulunmuştur.

🔖

Cite This Article

YALILI, M., KESTİOĞLU, K. (2022). Treatability of textile industry wastewater with high COD content by chemical-precipitation and adsorption. Ekoloji, Cilt: 15 - Sayı: 59, 27–31. https://ajindex.com/articles/499290

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (16)

  1. Abo-Elela SI, El-Gohary FA, Ali HL, Abdel Wahaab RSH (1988) Treatability Studies of Textile Wastewater. Environ Technol Letts 9, 101-108.
  2. Alsam MM, Baig MA, Hassan I, Quazi IA, Malik M, Saeed H (2004) Textile Wastewater Characterization and Reduction of its COD & BOD by Oxidation. Electronic Journal of Environmental, Agricultural and Food Chemistry 3, 6, 804-811.
  3. Anonymous (1997) Water Treatment Plant Design. Third Edition,
  4. McGraw-Hill, American Society of Civil Engineers, American Water Works Association, McGraw-Hill, New York. Anonymous (1998) Standard Methods for the Examination of Water and Wastewater. 20th Edition, American Public Health Association (APHA), Washington D.C. Asfour HM, Nassar MM, Fadali OA, El-Guendi MS (1985) Color Removal from Textile Effluents Using Hardwood Saw Dust as an Adsorbent. J. Chem. Technol. Biotechnol. 35(A), 28-35.
  5. Babu BV, Rana HT, Karishna VR, Sharma M (2000) C.O.D. Reduction of Reactive Dyeing Effluent from Cotton Textile Industry. Journal of the Institution of Public Health Engineers India 4, 5-11.
  6. Correia, VM, Stephenson T, Judd SJ (1994) Characterisation of Textile Wastewaters -A rewiev. Environmental Technology 15, 917-929.
  7. Germirli, F (1990) The Incremental and Comparison Methods for the Assesment of Initial Soluble Inert COD. Doktora Tezi, İstanbul Teknik Üniversitesi Fen Bilimleri Enstitüsü, İstanbul.
  8. Germirli F, Orhon D, Tünay O (1990) Tekstil Endüstrisinde Atýksu Özelliklerini Etkileyen Faktörler-Örnek Tesislerde Uygulama. In: İstanbul Teknik Üniversitesi 2. Endüstriyel Kirlenme Sempozyumu, Eylül 1990, İstanbul, 95-108.
  9. Grau P (1991) Textile Industry Wastewaters Treatment. Wat. Sci. Tech. 24, 97-103.
  10. Kestioğlu K (1990) Fýndýk Kabuðundan Üretilen Aktif Karbonun Atıksu Arıtımına Uygulanması. Doktora Tezi, Dokuz Eylül Üniversitesi,
  11. Fen Bilimleri Enstitüsü, İzmir.
  12. Lin SH, Chen ML (1997) Treatment of Textile Wastewater by Chemical Methods for Reuse. Water Research 31, 868-876.
  13. Lin SH, Peng CF (1994) Treatment of Textile Wastewater by Electrochemical Method. Water Research 28, 277-282.
  14. McKay G (1984) Two-Resistance Mass Transfer Models for the Adsorption of Dyestuffs from Solutions Using Activated Carbon. J. Chem. Technol. Biotechnol. 34(A), 294-310.
  15. Tzitsi M, Vayenas DV, Lyberatos G (1994) Pretreatment of Textile Industry Wastewaters with Ozone. Water Science and Technology 29, 151-160.
  16. Uddin ABM, Amat Ngilmi AS, Mohd Asri MN (2003), Effectiveness of Peat Coagulant for the Removal of Textile Dyes from Aqueous Solut