[1]陈彦霖,郑蕊,隋倩雯,等.厌氧氨氧化处理猪场厌氧消化液的工程应用研究[J].中国给水排水,2022,38(3):7-13.
　CHEN Yan-lin,ZHENG Rui,SUI Qian-wen,et al.Engineering Application of Anammox in Treatment of Anaerobic Digestion Liquor in Swine Farm[J].China Water & Wastewater,2022,38(3):7-13.
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厌氧氨氧化处理猪场厌氧消化液的工程应用研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第3期 页码: 7-13 栏目: 出版日期: 2022-02-01
Title:
Engineering Application of Anammox in Treatment of Anaerobic Digestion Liquor in Swine Farm
作者:
陈彦霖1,2,3， 郑蕊4， 隋倩雯1,2， 郁达伟1,2， 任杰辉4， 程向前4， 陈梅雪1,2， 魏源送1,2,3
（1.中国科学院生态环境研究中心 环境模拟与污染控制国家重点联合实验室，北京 100085；2.中国科学院生态环境研究中心 水污染控制实验室，北京 100085；3.中国科学院大学 资源与环境学院，北京 100049；4.安平县弘嘉环保技术有限公司，河北 安平 053600）
Author(s):
CHEN Yan-lin1，2，3， ZHENG Rui4， SUI Qian-wen1，2， YU Da-wei1，2， Ren Jie-hui4， CHENG Xiang-qian4， CHEN Mei-xue1，2， WEI Yuan-song1，2，3
（1. State Key Joint Laboratory of Environment Simulation and Pollution Control， Research Center for Eco?Environmental Sciences， Chinese Academy of Sciences， Beijing 100085， China； 2. Laboratory of Water Pollution Control Technology， Research Center for Eco?Environmental Sciences， Chinese Academy of Sciences， Beijing 100085， China； 3. College of Resources and Environment， University of Chinese Academy of Sciences， Beijing 100049， China； 4. Anping Hongjia Environmental Technology Co. Ltd.， Anping 053600， China）
关键词:
A2/O工艺;  厌氧消化液;  厌氧氨氧化;  工程应用
Keywords:
A2/O process;  anaerobic digestion liquor;  Anammox;  engineering application
摘要:
针对厌氧氨氧化技术在工程应用中存在的工艺调控难、运行不稳定等问题，以某猪场厌氧消化液处理厂的A2/O工艺为例，通过在不同阶段调控关键参数，提高系统运行稳定性，增加厌氧氨氧化脱氮比例，进而提高污水生物脱氮效率。第1阶段，通过开启双风机，控制好氧区DO为0.3~0.5 mg/L，并逐步降低进水外加碳源量，A2/O系统对COD、氨氮、总氮的去除率分别为86%、89.9%和66.6%。第2阶段，通过开启单风机，控制好氧区DO<0.1 mg/L，进水停止投加碳源，A2/O系统对COD、氨氮、总氮的去除率分别为81.9%、91.95%和83.48%。脱氮能耗和废水处理能耗分别由第1阶段的4.18 kW·h/kg和1.93 kW·h/m?降至第2阶段的2.57 kW·h/kg和0.90 kW·h/m?，降幅分别为38.5%、53.4%。高通量测序结果表明，Candidatus Brocadia是A2/O系统中唯一的厌氧氨氧化菌，相对丰度由第1阶段的0.76%提高至第2阶段的1.85%。荧光定量PCR分析结果显示，与厌氧氨氧化相关的功能基因hzo、hzsA和nirS的相对丰度在第2阶段分别增加了1.78、42.25和2.05 倍。
Abstract:
Anaerobic ammonia oxidation (Anammox) technology has the problems such as difficult process control and unstable operation in engineering application. The key operational parameters at different stages of a full?scale A2/O process treating anaerobic digestion liquor in a swine farm of Hebei Province were optimized to improve the stability of the process, increase the percentage of Anammox denitrification, and improve the efficiency of biological denitrification. In the first stage, the dissolved oxygen (DO) in the aerobic zone was controlled to 0.3-0.5 mg/L by turning on the dual aerators, and the additional carbon source in the influent was reduced gradually. The removal efficiencies of COD, ammonia nitrogen and total nitrogen by the A2/O system were 86%, 89.9% and 66.6%, respectively. In the second stage, the DO in the aerobic zone was controlled below 0.1 mg/L by starting only one aerator, and the addition of external carbon source in the influent was stopped. The removal efficiencies of COD, ammonia nitrogen and total nitrogen by the system were 81.9%, 91.95% and 83.48%, respectively. The energy consumptions per unit nitrogen removal and wastewater treatment were decreased by 38.5% and 53.4%, respectively, which were from 4.18 kW·h/kg and 1.93 kW·h/m? in the first stage to 2.57 kW·h/kg and 0.90 kW·h/m in the second stage. High?throughput sequencing results showed that Candidatus Brocadia was the only Anammox bacterium in the A2/O system, and its relative abundance increased from 0.76% in the first stage to 1.85% in the second stage. Fluorescence quantitative PCR analysis showed that the relative abundance of genes hzo, hzsA and nirS related to Anammox increased by 1.78, 42.25 and 2.05 times in the second stage, respectively.

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更新日期/Last Update: 2022-02-01