Industrial sludge remediation with photonic treatment using Ti–Ag nano-composite thin films: Persistent organic pollutant removal from sludge matrix.
Mechanically dewatered industrial sludge (MDIS) was treated using pure and silver-doped thin films (TFs) grown on quartz substrates. TFs were prepared using a sol–gel dip coating technique. The resulting films were annealed at 450 °C for 3 h and characterized by X-ray diffraction (XRD), scanning ele...
| Publicado en: | Journal of Environmental Management Vol. 149; pp. 37 - 46 |
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| Autores principales: | , |
| Formato: | Artículo |
| Publicado: |
Academic Press Inc.
Feb2015
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=99792870&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 99792870 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 03014797 EMJ jtl: Journal of Environmental Management issn: 03014797 maglogo: N pubinfo: dt: Feb2015 vid: 149 pid: 735 pub: Academic Press Inc. artinfo: ui: 99792870 10.1016/j.jenvman.2014.07.040 ppf: 37 ppct: 9 formats: tig: atl: Industrial sludge remediation with photonic treatment using Ti–Ag nano-composite thin films: Persistent organic pollutant removal from sludge matrix. aug: au: Tunçal, Tolga Uslu, Orhan affil: Namık Kemal University, Çorlu Engineering Faculty, Environmental Engineering Department, Çorlu Müh. Fak. Sinandede Mevkii, 59860 Çorlu, Tekirdağ, Turkey Yeditepe University, Engineering Faculty, Civil Engineering Department, 26 Ağustos Kampüsü, Kayışdağı Caddesi, 34755 Ataşehir, İstanbul, Turkey su: Sludge management Thin film manufacturing Photonics Coating processes Sol-gel processes Nanocomposite materials Volatile organic compounds sug: subj: Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers Waste treatment and disposal Solid Waste Landfill Sludge management Thin film manufacturing Photonics Coating processes Sol-gel processes Nanocomposite materials Volatile organic compounds keyword: Dewatering Drying Industrial sludge PAH PCB Photo-remediation TiO 2 thin film Dewatering Drying Industrial sludge PAH PCB Photo-remediation TiO 2 thin film ab: Mechanically dewatered industrial sludge (MDIS) was treated using pure and silver-doped thin films (TFs) grown on quartz substrates. TFs were prepared using a sol–gel dip coating technique. The resulting films were annealed at 450 °C for 3 h and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Mixtures that were homogeneous in the UV A (380 nm) and UV (450 nm) regions of the electromagnetic spectrum were used as the irradiation source. The results revealed that illumination with different wavelengths helps to generate well-separated e/h pairs, resulting in a decrease in the recombination rate. An electron transfer chain model was also developed using the experimental results. The performance of the applied method was evaluated by observing variations in the sludge bound water content (SBWC), volatile solids removal rate (VSR), and the consumed and generated energy fluxes through endergonic and exergonic reactions. After treatment, SBWC was reduced from 65% ± 1% to 39% ±1 and the highest VSR was measured to be 27 ± 0.1 mg VSS cm h. The consumed and recovered energy fluxes were 960 ± 151 and 412 ± 26 J g VS, respectively. Raw sludge and polychlorinated biphenyls (∑ 15 PCB ) and polyaromatic hydrocarbon (∑ 16 PAH) concentrations were 4356.82 ± 22 μg kg and 446.25 ± 4.8 μg kg, respectively. The ∑ 15 PCB and ∑ 16 PAH concentrations in the treated sludge samples were 129.86 ± 22 μg kg and 34.85 ± 1.3 μg kg, respectively. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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