Flotasyon y�ntemi ile ya�-gres ve ask�da kat� madde giderimi - S�t ve s�t �r�nleri end�strisi �rne�i

�zdemir, Yasemin; D�lgen, Deniz; Alpaslan, Mehmet Necdet

Cilt : 30 Say� : 2 Y�l : 2024

30/2Son Say� Erken Bask� Ar�iv Pop�ler Makaleler Makale G�nderimi

Flotasyon y�ntemi ile ya�-gres ve ask�da kat� madde giderimi - S�t ve s�t �r�nleri end�strisi �rne�i [Pamukkale Univ Muh Bilim Derg]

Pamukkale Univ Muh Bilim Derg. 2024; 30(2): 263-270 | DOI: 10.5505/pajes.2023.49284

Flotasyon y�ntemi ile ya�-gres ve ask�da kat� madde giderimi - S�t ve s�t �r�nleri end�strisi �rne�i

Yasemin �zdemir¹, Deniz D�lgen², Mehmet Necdet Alpaslan²
¹Dokuz Eyl�l �niversitesi, Fen Bilimleri Enstit�s�, �evre M�hendisli�i, �zmir
²Dokuz Eyl�l �niversitesi, M�hendislik Fak�ltesi, �evre M�hendisli�i B�l�m�, �zmir

S�t end�strisi at�ksular�ndaki en �nemli kirliliklerden biri ya� ve grestir. Flotasyon, ya�-gres gideriminde kullan�lan bilinen ve g�venilir bir y�ntem olup, ya�-gres ile birlikte ask�da kat� madde ve organik maddeleri de uzakla�t�rabilmektedir. Flotasyon y�ntemlerinden biri olan ��z�nm�� Hava Flotasyonu (Dissolved Air Flotation, DAF), hava kabarc�� olu�turma y�ntemine g�re klasik DAF(KP-DAF) ve yeni nesil mikrokabarc�k pompal� DAF (MK-DAF) olmak �zere 2 gruba ayr�l�rlar. �ki sistem aras�ndaki en b�y�k farkl�l�k mikrokabarc�k boyutudur. Genellikle, KP-DAF sistemlerinde 50-120 mikron �ap�nda olu�an kabarc�k boyutu, MK-DAF sistemlerinde 20-50 mikron boyutuna inmektedir. Ayr�ca, KP DAF sistemi, yeni nesil DAF sistemlerine g�re daha karma��k bir yap�ya sahip olup, daha fazla ekipmandan olu�tu�u i�in bak�m-onar�m ihtiyac� fazlad�r ve daha s�k ar�za yapmaktad�r. Bu durum i�letme a��s�ndan s�rekli bir efor ve dikkat gerektirmektedir. Bu �al��mada, pilot bir DAF sistemi d�zene�i kullan�larak ya�-gres ve ask�da kat� madde giderimi incelenmi�, giri� debisi, pompa �e�idi, bas�n� de�i�imi parametrelerinin verime etkisi ara�t�r�lm��t�r. Pilot DAF �nitesi, s�t ve s�t �r�nleri �retimi yapan bir i�letmede kurulmu� ve ger�ek at�ksu ile �al��lm��t�r. KP-DAF Sisteminin, MK-DAF sistemlerine g�re daha d��k ya�-gres ve ask�da kat� madde (AKM) giderim verimine sahip oldu�u tespit edilmi�tir. Her iki sistem i�in optimum �al��ma bas�nc� 4 bar, en iyi verim de 1m3/h giri� debisinde elde edilmi�tir. KP-DAF sistemi ile ya�-gres ve AKM giderimi s�ras�yla % 61 ve %54, MK-DAF sistemi ile %70 ve %63 mertebesinde ger�ekle�mi�tir. Bu verilere g�re 1m3/h ve 4 bar i�letme ko�ulunda MK-DAF Sistemi, KP-DAF Sistemine g�re, ya�-gres ve AKM gideriminde %10 ve �zeri performans g�stermi�tir.

Anahtar Kelimeler: DAF (��z�nm�� Hava Flotasyonu), End�striyel at�ksu, Giderim verimi, Mikrokabarc�k pompas�, At�ksu ar�t�m�, Ya�-gres giderimi, S�t at�ksuyu

Removal of oil-grease and suspended solid by flotation method � Milk and dairy products industry example

Yasemin �zdemir¹, Deniz D�lgen², Mehmet Necdet Alpaslan²
¹Dokuz Eyl�l University, Graduate School of Natural and Applied Sciences, Enviromental Engineering, �zmir
²Dokuz Eyl�l University, Engineering Faculty, Environmental Engineering Department, �zmir

Oil and grease are one of the most important pollutants in dairy industry wastewater. Flotation is a well-known and reliable method used in dairy industry wastewater to remove oil-grease, and it can remove oil&grease as well as suspended solids and organic materials. Dissolved Air Flotation (DAF), is a flotation technique and is classified as (traditional) Classical DAF (CP-DAF) and new generation - microbubble pump DAF (MB-DAF) systems considering the air bubble generation method. The major difference between the two systems is the microbubble size. Generally, the bubble size of 50-120 microns in KP-DAF systems decreases to 20-50 microns in MB-DAF systems. Besides that, the classical DAF system has a more complex structure than the new generation DAF systems. It consists of more equipment, thus maintenance requirement is high and causes troubles more often. This situation requires constant effort and attention during the operation. In this study, oil&grease and suspended solid (SS) removal efficiency was evaluated by using pilot scale experimental DAF system. The impact of inflow rate, pump type, and the pressure was investigated. Pilot-plant was employed in the dairy factory and operated by real wastewater. The results shown that CP-DAF System has yielded lower oil & grease and suspended solid removal efficiency than MB-DAF systems. It has been determined that the optimum working pressure is 4 bar in both systems, and the highest performance was obtained at 1m3/h. For CP-DAF system, oil&grease and SS removals were obtained as 61% and 54%, respectively. However, 70% and 63% removals for oil&grease and SS were performed for MB-DAF system. Accordingly, it has been obtained that the MB-DAF System operating at 1m3/h and 4 bar, has approximately 10% higher performance in oil-grease and SS removal than the CP-DAF System.

Keywords: DAF (Dissolved Air Flotation), Industrial wastewater, Removal efficiency, Microbubble pump, Wastewater treatment, Oil&grease removal, Dairy wastewater.

Yasemin �zdemir, Deniz D�lgen, Mehmet Necdet Alpaslan. Removal of oil-grease and suspended solid by flotation method � Milk and dairy products industry example. Pamukkale Univ Muh Bilim Derg. 2024; 30(2): 263-270

Sorumlu Yazar: Yasemin �zdemir, T�rkiye
Makale Dili: T�rk�e

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