Investigation of treatability of automotive industry wastewaters by coagulation-flocculation, fenton and UV/H2O2

Semih Ayberk Aldığ; Gamze Sönmez

Makale detayları

Investigation of treatability of automotive industry wastewaters by coagulation-flocculation, fenton and UV/H2O2

Yazarlar:

Semih Ayberk Aldığ | Gamze Sönmez

Yayıncı:

Nigde Omer Halisdemir University

Ana Başlıklar:

Çevre Mühendisliği (Diğer)

Dergi:

Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi Vol.13 Issue 2, pp.490-499

Belge Tipi:

Makale

Yayın Tarihi:

4/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001315339

pISSN:

2564-6605

Anahtar kelimeler:

Özet:

 In the automotive industry, painting operations have emerged as a major source of environmental concerns. In this study, the treatability of wastewater obtained from the automotive industry painting process was investigated by using coagulation-flocculation, ultraviolethydrogen peroxide UVH2O2, and Fenton processes. The effects of pH, coagulant, and anionic polymer doses were examined for three different coagulants in the coagulation-flocculation process. Optimal conditions were determined based on chemical oxygen demand COD and turbidity removal efficiency. As a result of the study, the optimum conditions for the coagulant identified as ferric chloride, which achieved the highest COD removal of 49.6 and turbidity removal of 74.4, were determined as pH 8, coagulant dose of 400 mg L-1, and anionic polymer dose of 1 mg L-1. In the second stage of the study, Fenton and UVH2O2 processes were applied to the effluent of the coagulation-flocculation process to increase the removal efficiency. When the results were evaluated, it was observed that the maximum COD removal efficiency of 63.4 was attained under the conditions of pH 3 and 400 mg L-1 H2O2 concentration applied in the UVH2O2 process. However, in the Fenton process, a maximum COD removal efficiency of only 51 was achieved. From this study, it can be concluded that the UV H2O2 process applied after coagulation-flocculation increases the removal efficiency and can be an alternative and effective treatment process for wastewater from the automotive painting process.

 In the automotive industry, painting operations have emerged as a major source of environmental concerns. In this study, the treatability of wastewater obtained from the automotive industry painting process was investigated by using coagulation-flocculation, ultraviolethydrogen peroxide UVH2O2, and Fenton processes. The effects of pH, coagulant, and anionic polymer doses were examined for three different coagulants in the coagulation-flocculation process. Optimal conditions were determined based on chemical oxygen demand COD and turbidity removal efficiency. As a result of the study, the optimum conditions for the coagulant identified as ferric chloride, which achieved the highest COD removal of 49.6 and turbidity removal of 74.4, were determined as pH 8, coagulant dose of 400 mg L-1, and anionic polymer dose of 1 mg L-1. In the second stage of the study, Fenton and UVH2O2 processes were applied to the effluent of the coagulation-flocculation process to increase the removal efficiency. When the results were evaluated, it was observed that the maximum COD removal efficiency of 63.4 was attained under the conditions of pH 3 and 400 mg L-1 H2O2 concentration applied in the UVH2O2 process. However, in the Fenton process, a maximum COD removal efficiency of only 51 was achieved. From this study, it can be concluded that the UV H2O2 process applied after coagulation-flocculation increases the removal efficiency and can be an alternative and effective treatment process for wastewater from the automotive painting process.

 In the automotive industry, painting operations have emerged as a major source of environmental concerns. In this study, the treatability of wastewater obtained from the automotive industry painting process was investigated by using coagulation-flocculation, ultraviolethydrogen peroxide UVH2O2, and Fenton processes. The effects of pH, coagulant, and anionic polymer doses were examined for three different coagulants in the coagulation-flocculation process. Optimal conditions were determined based on chemical oxygen demand COD and turbidity removal efficiency. As a result of the study, the optimum conditions for the coagulant identified as ferric chloride, which achieved the highest COD removal of 49.6 and turbidity removal of 74.4, were determined as pH 8, coagulant dose of 400 mg L-1, and anionic polymer dose of 1 mg L-1. In the second stage of the study, Fenton and UVH2O2 processes were applied to the effluent of the coagulation-flocculation process to increase the removal efficiency. When the results were evaluated, it was observed that the maximum COD removal efficiency of 63.4 was attained under the conditions of pH 3 and 400 mg L-1 H2O2 concentration applied in the UVH2O2 process. However, in the Fenton process, a maximum COD removal efficiency of only 51 was achieved. From this study, it can be concluded that the UV H2O2 process applied after coagulation-flocculation increases the removal efficiency and can be an alternative and effective treatment process for wastewater from the automotive painting process.

 Otomotiv endüstrisinde boyama prosesleri, çevresel endişelerin ana kaynaklarından biri olarak ortaya çıkmaktadır. Bu çalışmada otomotiv endüstrisi boyama prosesinden elde edilen atıksuyun koagülasyon-flokülasyon, ultraviyolehidrojen peroksit UVH2O2 ve Fenton prosesleri ile arıtılabilirliği incelenmiştir. Koagülasyon-flokülasyon prosesinde farklı pH, koagülant ve anyonik polimer dozlarının etkisi karşılaştırılmış ve optimum şartlar kimyasal oksijen ihtiyacı KOİ ve bulanıklık giderim verimine göre belirlenmiştir. Çalışma sonucunda en yüksek 49.6 KOİ ve 74.4 bulanıklık giderim veriminin elde edildiği koagülant olarak tespit edilen demir III klorür için optimum koşullar pH 8, koagülant konsantrasyonu 400 mg L-1 ve anyonik polimer dozu 1 mg L-1 olarak belirlenmiştir. Giderim verimini arttırmak amacıyla koagülasyon-flokülasyon prosesi çıkış suyuna Fenton ve UVH2O2 prosesleri uygulanmıştır. Sonuçlar değerlendirildiğinde maksimum KOİ giderim verimi pH3 ve 400 mg L-1 H2O2 konsantrasyonunda uygulanan UV H2O2 prosesi ile  63.4 olarak elde edilmiştir. Ancak Fenton prosesinde ise maksimum 51 KOİ giderimi sağlanabilmiştir. Bu çalışmadan, koagülasyon flokülasyon ardından uygulanacak UVH2O2 prosesinin giderim verimini arttırdığı ve otomotiv endüstrisi boyama prosesi atıksuları için alternatif ve etkili bir proses olabileceği sonucuna varılmıştır.

Makale detayları

Investigation of treatability of automotive industry wastewaters by coagulation-flocculation, fenton and UV/H2O2

Yazarlar:

Semih Ayberk Aldığ | Gamze Sönmez

Yayıncı:

Nigde Omer Halisdemir University

Ana Başlıklar:

Çevre Mühendisliği (Diğer)

Dergi:

Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi Vol.13 Issue 2, pp.490-499

Belge Tipi:

Makale

Yayın Tarihi:

4/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001315339

pISSN:

2564-6605

Automotive industry

Coagulation-flocculation

Fenton

UV/H2O2Otomotiv endüstrisi

Koagülasyon-flokülasyon

Fenton

UV/H2O2

Sayı

Makale detayları

Yazarlar: Semih Ayberk Aldığ | Gamze Sönmez

Yayıncı: Nigde Omer Halisdemir University

Ana Başlıklar: Çevre Mühendisliği (Diğer)

Dergi: Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi Vol.13 Issue 2, pp.490-499

Belge Tipi: Makale

Yayın Tarihi: 4/2024

Belge Dili: İngilizce

Document ID (Org No.): 2001315339

pISSN: 2564-6605

Sayı

Yazarlar:

Semih Ayberk Aldığ | Gamze Sönmez

Yayıncı:

Nigde Omer Halisdemir University

Ana Başlıklar:

Çevre Mühendisliği (Diğer)

Dergi:

Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi Vol.13 Issue 2, pp.490-499

Belge Tipi:

Makale

Yayın Tarihi:

4/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001315339

pISSN:

2564-6605