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53920675 13 2555
*
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(Polyester) (polymerization process) (influent) (ethylene glycol, EG) (purified terephthalic acid, PTA) * (demineralized water)
- acetaldehyde EG * diethylene glycol EG > 95%, EG< 5% acetaldehyde
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* 60 .. (effluent)
()
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* (ferrous sulphate) (hydrogen peroxide) (hydroxyl radical, OH) (strong oxidizer) COD 20-3000 mg/L COD 7000 mg/L Sequenching Batch Reactor (SBR) ()
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* EQ () 24 .. 2554 pH H2O2:Fe2+ COD:H2O2 COD pH
()
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* Ethylene glycol (IUPAC ethane-1,2-diol) 1859 () (Wikipedia, 2012) EG EG EG EG EG
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* () EG EG EG EG
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* () EG EG EG 10 EG 1
H.J.H. Fenton
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* ()
(Bigda R.J., 1995)
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* ()
Acids: Formic, Gluconic, Lactic, Malic, Malic, Propionic, TartaricAlcohols: Benzyl, tert-Butyl Ethanol, Ethylene glycol, Glycerol isopropanol..etc.Aldehydes: Acetaldehyde, Benzaldehyde, Formaldehyde, Glyoxal..etc.Aromatics: Benzene, Chlorobenzene, Chlorophenol, Creosote..etc.Aromatics: Hydroquinone p-Nitrophenol, Phenol, Toluene..etc.Amines: Aniline, Cyclic amines, Diethylamine, Cyclic amines..etc.Dyes: Anthraquinone, Diazo, MonoazoEthers: TetrahydrofuranKetones: Dihydroxyacetone, Methyl ethyl ketone..etc.
Acetic acid, Acetone, Carbon tetrachloride, Chloroform, Maleic acid, Malonic Acid, Methylene chloride, Oxalic acid, n-Paraffins, Tetrachlorethane, Trichlorethane
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* () (Fe3+) H2O2 (Perhydroxyl radicals) Fe3+ Fe2+ Fe2+ (HOo)
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* ()1) (aliphatic/aromatic) 4 2) organic free radical3) HO HO-4) HO HO
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3) HO * () Fe2+ Fe2+ Fe2+ HO 1) Fe2+ 3-15 mg/L Fe2+ : H2O2 1: 5-25 2) Fe2+ : Substrate 1 : 10-50
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Fe2+ Fe3+ H2O2 H2O2 10-25 mg/L Fe2+ pH pH Fe2+ * ()
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HO * () H2O2
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< 20C > 40-50C H2O2 H2O2 20-40C H2O2 * ()
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pH 3 6 pH >7 Fe(OH)3 Fe(OH)3 H2O2 * ()
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pH pH FeSO4 pH H2O2 pH pH pH * ()
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30-60 H2O2 H2O2 H2O2 pH H2O2 * ()
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Bigda R.J.(1995) H2O2 HO H2O2 : Fe2+ H2O2 FeSO4 pH dil. H2SO4 * ()
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McGinnis et al., 2000 EG 1000 mg/L (Ultraviolet) (Photo Fenton System) EG 1.00.4 h-1 EG Formic acid pH 3.0 Ferric Oxalate Complexes* ()Wang et al. (2011) FeSO4 H2O2 (Propylene Glycol, PG) PG PG 99.1% COD 88.4%
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Guedes et al., 2003 pH 3.2 H2O2 10.6 g/L, Fe2+ : H2O2 1:5 () TOC, COD, BOD5 66.4%, 87.3%, 70.2% BOD5/COD 0.27 0.63 2050oC 30 oC* (), 2545 Phenol Phenol 0.0118 mole/L COD 3400 mg/L pH 5.4 Phenol : H2O2 Fe2+ : Phenol Fe2+: Phenol : H2O2 1 : 0.436 : 7.52 COD 389 mg/L pH 1.85 CaO Phenol 17 % pH 10.7
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Meric et al. (2002) Reactive Black 5, RB5 100 200 mg/L RB5 pH 3.0 40 oC RB5 100 mg/L FeSO4 100 mg/L H2O2 400 mg/L COD 71% 99% RB5 200 mg/L FeSO4 225 mg/L H2O2 1000 mg/L > 99% * ()San et al. (2003) COD 362,000 mg/L COD 56.4% H2O2 3 M Fe2+ 0.3 M COD H2O2 >5 M
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Lucas et al. (2009) COD COD 2 g/L pH 3.5 30oC H2O2 : Fe2+ 15 H2O2 : COD 1.75 COD 70% * ()Yetilmezsoy Sakar (2007) (UASB) pH 7.30 COD 12,100 910 mg/L pH 3, Fe2+ 400 mg/L H2O2 200 mg/L COD 88.7% 80.9% Fe2+ 100 mg/L H2O2 1200 mg/L COD 95% 95.7%
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Ma Xia (2009) acrylics 1,2- isopropanol monoethanolamine (Coagulation) pH 7 COD 4,3505,200 mg/L (SS) 195 mg/L COD 100%, 93.4%, 87.2% pH 4, H2O2 50 mg/L, FeSO4 25 mg/L 30 * ()Lee Shoda (2007) COD COD 5,000-5,700 mg/L H2O2 : COD 1.05 H2O2 : Fe2+ 2 pH 3.5-4 30 COD 88% 95.4%
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Ghosh et al. (2011) EG 1,4-Dioxane COD 11,500 mg/L pH 3.2, H2O2 3 M Fe2+ 0.06 M COD 97.5% * ()Xiao et al. (2011) (PVA) COD pH 5 H2O2 (2%) 5% FeSO4 (10 mg/L) 8% COD 760 mg/L 110 COD 58.6%-61.4%
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1000 6 Lutron PH-220 (Digital Balance) 4 (Centrifugal separator) (Syringe) 0-100
*
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35% H2O2 AR Grade FeSO4.7H2O AR Grade conc. H2SO4 NaOH K2Cr2O7 AR Grade Ag2SO4 HgSO4 Fe(NH4)2(SO4)2.6H2O
* ()
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* COD Titrimetric method
COD 13,000 mg/LpH 4.1
()
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()*
Fe2+
H2O2
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()* 500 mL 1000-mL 6 pH 3 0.1 M H2SO4 FeSO4.7H2O () 200 10 35% H2O2 () () () pH pH 7.5-8.5 5 M NaOH 120 COD
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()*
pH 3 H2O2: Fe2+ 20:1 H2O2: COD 2.33 50 100 150 200 250 300 10
pH 3 H2O2: Fe2+ 20:1 H2O2: COD 2.33 () 10 20 30 40 50 60
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()* () 10 20 30 40 50 60
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()* H2O2
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*1.
4.1 50, 100, 150, 200, 250 300 45.51, 42.51, 41.71, 39.45, 40.00 44.69 % pH 1.91, 1.92, 1.97, 2.02, 2.02 1.97 pH COD (Kang et al., 2003; Murray & Parsons, 2004; Goslan et al., 2006; Ciner & Solmaz, 2007; Kumar et al., 2012) 50 45.51%
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()*2.
4.2 45.51, 75.08, 73.51, 76.80, 72.32 72.43 % pH 1.91, 1.38, 1.42, 1.49, 1.58 1.63 10, 20 , 30, 40, 50 60 20 Ciner & Solmaz (2007) 20 40 pH Fe2+ H2O2 40 (76.80%) pH 4.2 58o C 20
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()*3.
4.3 pH 2, 3, 4, 5, 6 7 77.41, 78.45, 77.60 , 76.23 , 73.46 71.22 % pH 1.62, 1.59, 1.60, 1.60, 1.60 1.74 pH 3 78.45% pH pH ferric hydroxide-complexes Fe(OH)3 Fe3+ H2O2 Fe2+ Fe(OH)3 H2O2 H2O2 pH 2 H2O2 Fe2+ [Fe(H2O)6]2+ [Fe(HO)(H2O)5]2+ H+ peroxone ion, [H3O2]+ H2O2 Fe2+
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()*4. Fe2+ H2O2 4.4 H2O2 : Fe2+ 10:1, 15:1, 20:1, 30:1, 40:1 50:1 74.26, 81.03 , 77.35, 70.99 , 62.34, 58.27% pH 1.79, 1.67, 1.69, 1.80, 2.04 2.18 Fe2+ HO 4.4 H2O2 : Fe2+ 10 Fe2+ (recombination) (Lucus & Peres, 2009)
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()*5 H2O2
pH 3 H2O2 : Fe2+ 15 H2O2 : COD 1.15, 1.75, 2.33, 2.91, 3.49 4.07 5 55.10, 74.23, 81.38, 85.38, 84.78, 82.86% pH 2.03, 1.66, 1.58, 1.54, 1.49 1.46 H2O2 : COD 2.91 85.4%, pH 1.54 4.5 H2O2 : COD 2.91 H2O2 : COD H2O2 Fe2+ Fe3+ OH H2O2 H2O2 COD COD (Xiao et al, 2011)
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* ( pH 3 H2O2:Fe2+ 0.0672 M 15 H2O2:COD 2.91) ( H2O2 1.01 M Fe2+ 0.0672 M) 85.4% Ghosh et al. (2011) COD COD 11,500 mg/L pH 3 H2O2 3 M Fe2+ 0.06 M COD 97.5% H2O2 1.01 M H2O2 H2O2 COD
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* EG COD EG (C2H6O2) H2O2 () H2O2 H2O2 (5 mol x 34.015 g/mol) = 170.07 g : COD (1 mol x 62.07 g/mol) = 62.07 g H2O2 2.74 g : COD 1 g < 2.91 ( 85.4%) H2O2 (mineralization) EG Oxalic acid (McGinnis et al., 2000) H2O2 PTA
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* H2O2 H2O2 (15 mol x 34.015 g/mol) = 510.22 g : COD (1 mol x 163.13 g/mol) = 166.13 g H2O2 3.07 g : COD 1 g > 2.91 ( 85.4%) H2O2 : COD
(mineralization) EG Oxalic acid (McGinnis et al., 2000) H2O2 (polymerization) EG PTA (C8H6O4) PTA
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*2. 20 40 ()
50 45.51% H2O2
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*3. pH COD EG pH 3 ( 78.45%) pH ferric hydro-complexs Fe3+ H2O2 Fe2+ H2O2 pH 2 () [Fe(H2O)6]2+ [Fe(HO)(H2O)5]2+ peroxone ion, [H3O2]+ H2O2 Fe2+
()
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*4. Fe2+ H2O25. H2O2 COD 2.91:1 ( 85.38%) H2O2 : COD 2.91:1 H2O2 : COD H2O2 Fe2+ Fe3+ CODcr H2O2 CODcr 1/15 ( 81.03%) Fe2+ : H2O2 Fe2+ (1/10) (recombination) OH ()
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*2. pH meter 1. 3. H2O2 H2O2 COD4. COD5. BOD, TOC, TSS COD
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*THANK YOUSUGGESTION