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Application of Pd-Sn modified Ru-Ir electrode for treating high chlorine ammonia-nitrogen wastewater

https://doi.org/10.1080/09593330.2022.2137434
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jafuson: ½ð±Ò+10 2022-12-23 09:22:05
Application of Pd-Sn modified Ru-Ir electrode for treating high chlorine ammonia-nitrogen wastewater
×÷Õß:
Yang, ZX (Yang, Zhen-xing) [1] , [2] ; Xie, WY (Xie, Wen-yu) [1] ; Ye, FF (Ye, Fang-fang) [1] ; Li, DH (Li, De-hao) [3]
DOI10.1080/09593330.2022.2137434
ÔÚÏß·¢±íOCT 2022
ÒÑË÷Òý2022-11-13
ÎÄÏ×ÀàÐÍReview; Early Access
ÕªÒª
Electro-catalytic technology is a promising approach for wastewater treatment, owing to its easy operation, minimal generation of secondary pollution, small foot-print and rapid start-up. In this work, the chlorine evolution potential of the Pd-Sn modified ruthenium(Ru)-iridium(Ir) electrode was investigated for the electro-catalytic treatment of high chlorine ammonia-nitrogen wastewater. The effect of reaction conditions on the removal of ammonia-nitrogen, kinetics and apparent activation energy of ammonia-nitrogen removal were studied. The possible denitrification process of high chlorine ammonia-nitrogen wastewater was discussed. The results indicated that the chlorine evolution potential of the Pd-Sn modified Ru-Ir electrode was 1.0956 V(vs. SCE). The electro-catalytic treatment of high chlorine ammonia-nitrogen conformed to zero-order kinetic law, and the apparent activation energy of removal process was 14.089 kJ/mol. With a current was 0.5 A, the removal efficiency of ammonia-nitrogen could achieve 100% at a reaction time of 40 min. Indirect oxidation played an essential role in the electro-catalytic ammonia-nitrogen removal using the Pd-Sn modified Ru-Ir electrode. This paper demonstrated that the electro-catalytic technology was a promising approach for efficiently treating the high chlorine ammonia-nitrogen wastewater.

¹Ø¼ü´Ê
×÷Õ߹ؼü´ÊElectro-catalytic technologyPd-Sn modified Ru-Ir electrodehigh chlorine ammonia-nitrogen wastewaterammonia-nitrogen removalindirect oxidation
Keywords PlusELECTROCHEMICAL TREATMENTLANDFILL LEACHATEREMOVALOXIDATIONREACTORNITRIFICATIONDEGRADATIONCARBONPHOSPHATERECOVERY
×÷ÕßÐÅÏ¢
ͨѶ×÷ÕßµØÖ·
Xie, Wen-yu
(ͨѶ×÷Õß)
Guangdong Univ Petrochem Technol, Guangdong Prov Key Lab Petrochem Pollut Proc & Co, Maoming 525000, Guangdong, Peoples R China
µØÖ·
1 Guangdong Univ Petrochem Technol, Guangdong Prov Key Lab Petrochem Pollut Proc & Co, Maoming 525000, Guangdong, Peoples R China
2 China Univ Petr, Beijing Key Lab Oil & Gas Pollut Control, Beijing, Peoples R China
3 Yangjiang Vocat & Tech Coll, Yangjiang, Peoples R China
µç×ÓÓʼþµØÖ·gdmmxwy@163.com
Àà±ð/·ÖÀà
Ñо¿·½ÏòEnvironmental Sciences & Ecology
ÒýÎÄÖ÷Ìâ
2 Chemistry
2.90 Water Treatment
2.90.313 Electrocoagulation
ÎÄÏ×ÐÅÏ¢
ÓïÖÖEnglish
Èë²ØºÅWOS:000873333700001
PubMed ID36250397
ISSN0959-3330
eISSN1479-487X
ÆäËûÐÅÏ¢
IDS ºÅ5P7NQ
À´×Ô MEDLINE® µÄ·ÖÖ÷Ìâ×Ó¿âIndex Medicus
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