[1]刘崇,许炜怡,李玉光,等.火化烟气吸收液的硫自养反硝化深度脱氮研究[J].中国给水排水,2022,38(11):7-12.
　LIUChong,XUWei-yi,LIYu-guang,et al.Deep Denitrification of Cremation Flue Gas Absorption Wastewater Based on Sulfur Autotrophic Denitrification[J].China Water & Wastewater,2022,38(11):7-12.
点击复制

火化烟气吸收液的硫自养反硝化深度脱氮研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第11期 页码: 7-12 栏目: 出版日期: 2022-06-01
Title:
Deep Denitrification of Cremation Flue Gas Absorption Wastewater Based on Sulfur Autotrophic Denitrification
作者:
刘崇1， 许炜怡2， 李玉光1， 沈斐3， 王硕2,4， 李激2,4
（1.民政部环境监测中心站 民政部一零一研究所，北京 100070；2.江南大学环境与土木工程学院 江苏省厌氧生物技术重点实验室，江苏 无锡 214122；3.江苏无锡环境监测中心 仪器分析实验室，江苏 无锡 214121；4.江苏高校水处理技术与材料协同创新中心，江苏 苏州 215009）
Author(s):
LIU　Chong1， XU　Wei-yi2， LI　Yu-guang1， SHEN　Fei3， WANG　Shuo2，4， LI　Ji2，4
（1. 101 Institute of the Ministry of Civil Affairs， Environmental Monitoring Center Station of the Ministry of Civil Affairs， Beijing 100070， China； 2. Jiangsu Key Laboratory of Anaerobic Biotechnology， School of Environment and Civil Engineering， Jiangnan University， Wuxi 214122， China； 3. Laboratory of Instrumental Analysis， Jiangsu Wuxi Environmental Monitoring Center， Wuxi 214121， China； 4. Jiangsu University Collaborative Innovation Center of Water Treatment Technology and Material， Suzhou 215009， China）
关键词:
火化烟气;  深度脱氮;  自养反硝化;  硫酸盐;  微生物菌群结构
Keywords:
cremation flue gas;  deep denitrification;  autotrophic denitrification;  sulfate;  microbial community structure
摘要:
基于硫自养反硝化工艺研究了火化烟气吸收液的深度脱氮过程与调控技术。通过逐级提高硝态氮负荷的方式可以在30 d内使硝态氮去除率提高至89.0%，石灰石可以有效替代碳酸氢钠为反应系统提供碱度，使自养反硝化菌群稳定发挥脱氮能力。相比于硫酸盐，亚硝态氮表现出更为明显的自养反硝化功能菌群毒性抑制效果，但是在功能菌群适应进水水质后，系统的硝态氮去除率均高于93.2%。定期反冲洗可以防止硫磺填料板结现象的发生，从而使系统维持较好的硝态氮去除效果。Thiobacillus sp.和Sulfrimonas sp.是系统中的优势菌群，相对丰度占总自养脱氮功能菌群的70.5%以上，但是Sulfuricurvum sp.的相对丰度则明显降低，主要原因在于其不能还原亚硝态氮。
Abstract:
Based on the sulfur autotrophic denitrification process, the deep denitrification process and control technology of cremation flue gas absorption wastewater were studied. It was found that nitrate removal could be increased to 89.0% within 30 days by gradually increasing the nitrate loading. Limestone could effectively substitute NaHCO3 to provide alkalinity, and thus the autotrophic denitrifying bacteria could perform stable nitrogen removal capacity. Compared with sulfate, nitrite showed obvious toxic inhibition effect on the autotrophic denitrifying bacteria. However, the removal efficiency of nitrate was higher than 93.2% when the functional flora adapted to the influent quality. Regular backwashing could prevent the occurrence of sulfur packing hardening, therefore, the system could maintain good nitrate removal performance. Thiobacillus sp. and Sulfrimonas sp. were the dominant species, and the relative abundance accounted for more than 70.5%, but the relative abundance of Sulfuricurvum sp. was significantly lower, mainly because Sulfuricurvum sp. could not reduce the nitrite.

相似文献/References:

[1]李惠平,庞维海,谢丽,等.低C/N污水处理过程中有机碳源的特性及转化分析[J].中国给水排水,2022,38(7):69.
　LIHui-ping,PANGWei-hai,XIELi,et al.Characteristics and Conversion of Organic Carbon Sources during Treatment of Municipal Wastewater with Low Carbon to Nitrogen Ratio[J].China Water & Wastewater,2022,38(11):69.
[2]薛罡,何月玲,王晓暖,等.印染废水的硫自养反硝化深度脱氮中试研究[J].中国给水排水,2022,38(13):15.
　XUEGang,HEYue-ling,WANGXiao-nuan,et al.Pilot Study of Sulfur-driven Autotrophic Denitrification for Advanced Nitrogen Removal in Secondary Effluent of Dyeing Wastewater[J].China Water & Wastewater,2022,38(11):15.
[3]王泽春,冯景伟,张浏,等.污泥发酵液强化污水厂尾水人工湿地深度脱氮[J].中国给水排水,2023,39(15):23.
　WANGZe-chun,FENGJing-wei,ZHANGLiu,et al.Enhanced Denitrification of Constructed Wetland for Treatment of Sewage Treatment Plant Effluent by Sludge Fermentation Liquid[J].China Water & Wastewater,2023,39(11):23.
[4]刘雯静,张克峰,丁万德.淀粉/聚乙烯醇固体碳源对污水厂尾水的脱氮效果[J].中国给水排水,2024,40(5):75.
　LIUWen-jing,ZHANGKe-feng,DINGWan-de.Effect of Starch/Polyvinyl Alcohol Solid Carbon Sources on Nitrogen Removal of Tail Water from Municipal Wastewater Treatment Plant[J].China Water & Wastewater,2024,40(11):75.
[5]杨雪,王燕,支尧,等.循环流化自养反硝化塔用于养猪废水深度脱氮[J].中国给水排水,2024,40(10):132.
　YANGXue,WANGYan,ZHIYao,et al.Advanced Nitrogen Removal from Swine Wastewater Using Circulating Fluidized Autotrophic Denitrification Tower[J].China Water & Wastewater,2024,40(11):132.

更新日期/Last Update: 2022-06-01