İçme Suyu Arıtma Tesisi Atık Çamuru (DWTS) Kullanılarak Sulu Çözeltilerden Anyonik ve Katyonik Boyarmaddelerin Giderilmesi: Denge ve Kinetik Değerlendirme

Öz

Bu araştırmada, içme suyu arıtma tesisi atık çamurunu (İSATAÇ) adsorban olarak kullanan bir adsorpsiyon sistemi ile Brilliant Green (BG) ve Remazol Brilliant Blue R (RBBR) boyarmaddelerinin giderimi araştırılmıştır. Atık çamuru düşük maliyetli ve çevre dostu bir adsorban olarak değerlendirerek sürdürülebilir arıtma yöntemlerine katkıda bulunmayı amaçlamaktadır. Çalışmada, adsorpsiyon sürecini etkileyen önemli parametreler sistematik olarak incelenmiştir. Deneyler sırasında çözelti başlangıç pH'ı, denge süresi, adsorban miktarı ve başlangıç boyarmadde konsantrasyonu gibi faktörlerin adsorpsiyon verimliliğine etkileri değerlendirilmiştir. Elde edilen veriler Langmuir ve Freundlich izoterm modelleri ile test edilmiş ve adsorpsiyonun hem homojen hem de heterojen yüzeylerde meydana geldiği belirlenmiştir. İSATAÇ’ın maksimum adsorpsiyon kapasitesi, BG ve RBBR için sırasıyla 100.0 mg g-1 ve 38.9 mg g-1 olarak hesaplanmıştır. Adsorpsiyon sürecinin dinamiklerini anlamak için kinetik analizler yapılmıştır. Yalancı birinci mertebeden ve yalancı ikinci mertebeden kinetik modeller değerlendirilmiştir ve yalancı ikinci mertebeden kinetik modelin adsorpsiyon verilerini daha iyi açıkladığı görülmüştür. Sonuç olarak, İSATAÇ’ın BG ve RBBR'nin giderilmesinde etkili bir adsorban olduğu kanıtlanmıştır. Bulgular, İSATAÇ’ın çevresel sürdürülebilirlik açısından ileri arıtma süreçlerinde değerlendirilmek için önemli bir potansiyele sahip olduğunu göstermiştir.

Anahtar Kelimeler

• Adsorpsiyon
• Brillant Green
• Boyarmadde
• Remazol Brilliant Blue R
• İçme Suyu Arıtma Tesisi Atık Çamuru

Removal of anionic and cationic dyes from aqueous solutions using drinking water treatment plant sludge (DWTS): Equilibrium and kinetic evaluation

Öz

The present research investigates the removal of Brilliant Green (BG) and Remazol Brilliant Blue R (RBBR) dyes by an adsorption system utilizing drinking water treatment sludge (DWTS) as an adsorbent. It aims to contribute to sustainable treatment methods by evaluating waste sludge as a low-cost and environmentally friendly adsorbent. In the study, the significant parameters affecting the adsorption process were systematically investigated. During the experiments, the effects of factors such as initial pH of the solution, equilibrium time, adsorbent amount and initial dye concentration on the adsorption efficiency were evaluated. The obtained data were tested with Langmuir and Freundlich isotherm models and it was determined that adsorption occurred on both homogeneous and heterogeneous surfaces. The maximum adsorption capacity of DWTS was calculated as 100.0 mg g-1 and 38.9 mg g-1 for BG and RBBR, respectively. Kinetic analyses were performed to understand the dynamics of the adsorption process. Pseudo-first order and Pseudo-second order kinetic models were evaluated and it was noticed that the pseudo-second order model explained the adsorption data better. As a result, DWTS has been proven to be an effective adsorbent in the removal of BG and RBBR. The findings indicated that DWTS has significant potential for evaluation in advanced treatment processes in terms of environmental sustainability.

Anahtar Kelimeler

• Adsorption
• Brilliant Green
• drinking water treatment sludge
• dye
• Remazol Brilliant Blue R

Kaynakça

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