Pengolahan Limbah Cair Warna Tekstil yang Bersifat Non-biodegradable dalam Multi-lamp Bubble Column Photoreactor

Hudaya, Tedi and Kartawijaya, Hendy and Yulia, Yulia Pengolahan Limbah Cair Warna Tekstil yang Bersifat Non-biodegradable dalam Multi-lamp Bubble Column Photoreactor. Pengolahan Limbah Cair Warna Tekstil yang Bersifat Non-biodegradable dalam Multi-lamp Bubble Column Photoreactor. (Submitted)

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    Abstract

    Textile dyeing industries, especially in West Java region, are usually located in a dense populated area. The waste water effluents, if not properly treated, will cause serious pollution problems to the surrounding water streams. The waste water mostly contains synthetic dyes, such as Procion Navy H-exl (PNH), Procion Crimson H-exl (PCH), Dianic Yellow Ace (DYA), which are non-biodegradable. Such waste water is characterized by a very low BOD5/COD ratio (< 0,01). One of destructive techniques to treat nonbiodegradable waste water is Advanced Oxidation Processes (AOP), which utilize the combination of UV irradiation with TiO2 photocatalyst and/or an oxidator (H2O2 or O3). This initial study investigated the use of UV/H2O2 technique for treating non-biodegradable textile dye waste water in a pilot scale (50 L) multilamp bubble column photoreactor. The final aim of the treatment was to increase the waste water BOD5/COD ratio until the biodegradability limit was reached (> 0,1), so that a cheaper conventional biological treatment might be subsequently applied. Two major operating conditions under investigation, the initial H2O2 concentration and pH were varied between 0.5 – 2 % w/w, and 3 – 10, respectively. The effect of both variables to the color content of the treated waste water was examined. This study used a synthetic waste water containing DYA, with similar color content with real waste water from a textile dyeing factory in Majalaya, Bandung (PT Himalaya). Within the experimental condition range, 55 – 96% color content were succesfully removed within 6 hours illumination period using 3 low pressure Hg UV lamps (75 Watt each). The aeration flow rate in the photoreactor was 4 L/min, and the best result was achieved at initial H2O2 concentration of 0.5 % w/w and pH 3. Additional test with real industrial waste water using those best conditions resulted in BOD5/COD ratio increase from 0.009 to 0.1 within 12.5 hours. Keywords : non-biodegradable, dyes, UV/H2O2, bubble-column, photoreactor

    Item Type: Article
    Subjects: 600 Teknologi
    Divisions: Fakultas Teknologi Industri > Teknik Kimia
    Depositing User: Wikan Pinandhito
    Date Deposited: 19 Jul 2011 08:08
    Last Modified: 19 Jul 2011 08:08
    URI: http://repository.upnyk.ac.id/id/eprint/605

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