Page 189 - 《精细化工》2020年 第10期
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第 10 期 马建超,等: 湿式催化氧化降解焦化废水 ·2119·
NH 3 -N 质量浓度为 884.2 mg/L,pH 为 9.95。从图 14-17.
11 可以看出,反应 10 min 时,焦化废水的 COD 去 [3] LU Y (卢永), YAN L H (严莲荷), LI B (李兵), et al. Pretreatment of
coking wastewater by copperized iron internal electrolysis system[J].
除了 52.7%,反应 60 min 时,COD 去除率达到了 Fine Chemicals (精细化工), 2008, 25(3): 269-272.
69.6%,此时废水中的 NH 3 -N 质量浓度为 636.6 [4] ZHU J D, CHEN L J, ZHANG Y, et al. Revealing the anaerobic
acclimation of microbial community in a membrane bioreactor for
mg/L,NH 3 -N 去除率为 28.0%;为进一步探索焦化 coking wastewater treatment by illumina Miseq sequencing[J]. Journal
废水 COD 和 NH 3 -N 去除随着时间的延长的变化趋 of Environmental Sciences, 2018, 64(2): 139-148.
势,反应时间增加至 180 min。结果发现,废水 COD [5] SHEN X D (申向东). Technical status of coking wastewater in a
coking plant in Shanxi[J]. Guangdong Chemical Industry (广东化
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180 min 时,实现了 77.1%的 COD 去除,此时废水 [6] YUAN S ( 袁松 ). Research progress in treatment of organic
wastewater by catalytic wet oxidation catalysts[J]. Modern Chemical
中的 NH 3 -N 质量浓度为 535.6 mg/L,NH 3 -N 去除率
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为 39.4%。这可能是因为实际焦化废水中除了苯酚和 [7] OLIVIERO L, BARBIER JR J, DUPREZ D, et al. Catalytic wet air
喹啉外,含有的其他杂质影响了催化剂的降解效果。 oxidation of phenol and acrylic acid over Ru/C and Ru-CeO 2/C
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3 结论 [8] PINTAR A, BESSON M, GALLEZOT P, et al. Catalytic wet air
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( 1 ) N 2 吸附 - 脱附和 TEM 结 果表明 , and zirconia supported ruthenium[J]. Applied Catalysis B:
CuMgLa/Al 2 O 3 催化剂具有介孔结构,CuO 活性组分 Environmental, 2001, 30(1/2): 123-139.
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粒径为 25 nm。 of phenol with Ru/ZrO 2-CeO 2 catalyst[J]. Environmental Science,
(2)湿式催化氧化降解喹啉的最佳工艺条件: 2007, 28(7): 1460-1465.
[10] GENG L L (耿莉莉), YANG K X (杨凯旭), ZHANG N W (张诺伟),
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分压为 0.53 MPa。在该条件下,反应 60 min 初始质 ammonia-wastewater[J]. CIESC Journal (化工学报), 2018, 69(9):
量浓度为 1000 mg/L 的喹啉模拟废水中喹啉去除率 3869-3878.
[11] CHAUDHARY R R, KUMAR P, CHAND S, et al. Catalytic wet air
接近 100.0%,COD 去除率可达 94.8%。催化剂使用 oxidation of toxic nitrogen containing compounds (pyridine) from
5 次后喹啉去除率及 COD 去除率仍能达到 86.9%和 wastewater[J]. Journal of Scientific and Industrial Research, 2006,
73.1%。 65(9): 757-759.
[12] ZHANG Y L, ZHOU Y B, PENG C, et al. Enhanced activity and
(3)TBA 淬灭实验表明,•OH 在喹啉降解中占 stability of copper oxide/γ-alumina catalyst in catalytic wet-air
主导作用,结合 UV-Vis 和 LC-MS 得到,•OH 攻击 oxidation: Critical roles of cerium incorporation[J]. Applied Surface
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苯环形成 8-羟基喹啉,8-羟基喹啉继续在•OH 作用 [13] MA J C, LIU S, FAN X P, et al. Hydrogenation of 2, 2, 6,
下形成 5,8-二羟基喹啉,接着其被氧化形成 2,3-吡 6-tetramethylpiper-idin-4-one over Cu 30Cr 5/basic alumina[J].
啶二甲醛和 2,3-吡啶二甲酸,形成烟酸,进一步生 Chinese Journal of Catalysis, 2012, 33(4): 605-609.
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成氨类、氮气、CO 2 、CO、H 2 O 等小分子化合物。 and p-alkyl phenols over Pd/Al 2O 3-BaO[J]. Bulletin of the Korean
(4)CWAO 降解以苯酚和喹啉配制 COD 初始 Chemical Society, 2012, 33(2): 387-392.
[15] ZHAI Y Z, JI Y J, WANG G N, et al. Controllable wet synthesis of
质量浓度为 7000 mg/L 的模拟焦化废水,在最优条
multicomponent copper-based catalysts for Rochow reaction[J]. RSC
件下可实现 94.6%的 COD 去除。在处理实际焦化废 Advances, 2015, 5: 73011-73019.
水中,可在最优反应条件下,实现了 69.6%的 COD [16] ZOU H (邹寒), WANG S T (王树涛), YOU H (尤宏), et al.
Quinoline degradation and mechanism in catalytic wet peroxide
去除,28.0%的 NH 3 -N 去除。
oxidation system[J]. CIESC Journal (化工学报), 2014, 65(11):
4400-4405.
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