[1]李思敏,李思雨,唐锋兵,等.通风速率对市政污泥好氧堆肥氮素转化的影响[J].中国给水排水,2023,39(5):121-127.
　LISi-min,LISi-yu,TANGFeng-bing,et al.Effect of Ventilation Rate on Nitrogen Transformation of Municipal Sludge in Aerobic Composting[J].China Water & Wastewater,2023,39(5):121-127.
点击复制

通风速率对市政污泥好氧堆肥氮素转化的影响

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第5期 页码: 121-127 栏目: 出版日期: 2023-03-01
Title:
Effect of Ventilation Rate on Nitrogen Transformation of Municipal Sludge in Aerobic Composting
作者:
李思敏1,2,3， 李思雨1,2,3， 唐锋兵1,2,3， 张义竞1,2,3， 许铮1,2,3， 王彦飞1,2,3
（1.河北工程大学 污水处理及资源化利用河北省工程研究中心，河北 邯郸 056038；2.河北工程大学 河北省水污染控制与水生态修复技术创新中心，河北 邯郸 056038；3.河北工程大学 邯郸市城市水利用技术重点实验室，河北 邯郸 056038）
Author(s):
LI　Si-min1，2，3， LI　Si-yu1，2，3， TANG　Feng-bing1，2，3， ZHANG　Yi-jing1，2，3， XU　Zheng1，2，3， WANG　Yan-fei1，2，3
（1. Hebei Engineering Research Center for Sewage Treatment and Resource Utilization， Hebei University of Engineering， Handan 056038， China； 2. Hebei Technology Innovation Center of Water Pollution Control and Water Ecological Remediation， Hebei University of Engineering， Handan 056038， China； 3. Handan Key Laboratory of Urban Water Utilization Technology， Hebei University of Engineering， Handan 056038， China）
关键词:
市政污泥;  好氧堆肥;  通风速率;  氮素转化
Keywords:
municipal sludge;  aerobic composting;  ventilation rate;  transformation of nitrogen
摘要:
堆肥过程中氮素的转化对堆肥产品的肥效有着重要影响。以市政污泥和蘑菇渣为原料，按照湿质量比1∶0.7混合后进行为期26 d的好氧堆肥，设置3 个不同通风速率的堆体A［2.4 m3/（m3·h）］、B［2.9 m3/（m3·h）］、C［3.3 m3/（m3·h）］，考察通风速率对堆肥过程中含氮有机物转化及NH3挥发的影响。结果表明，堆肥完成后A、B、C堆体的总氮损失率介于16.90%~25.10%之间，NH3挥发占总氮损失的比例介于68.49%~72.97%之间。B堆体通风速率下NH4+-N向NO3--N转化更多，B堆体NO3--N含量较A和C堆体分别增加了30.31%和8.98%。结构方程模型显示，不同通风速率下，酸解氨态氮（AN）最易转化为NH4+-N，通风速率为2.9 m3/（m3·h）时微生物代谢活跃，促进了氨基糖态氮（ASN）的积累，且NH4+-N转化为难以矿化的酸解未知态氮（HUN），增加了对氮素的固定。兼顾腐熟条件和氮素损失，通风速率以2.9 m3/（m3·h）为宜。
Abstract:
The transformation of nitrogen in composting process has an important impact on the fertilizer efficiency of composting products. Municipal sludge and mushroom residue were mixed with the wet weight ratio of 1∶0.7 and then aerobic composted for 26 days. Three piles with different ventilation rates, namely pile A [2.4 m3/(m3·h)], pile B [2.9 m3/(m3·h)] and pile C [3.3 m3/(m3·h)], were set to investigate the effect of ventilation rate on the transformation of nitrogen-containing organic matter and NH3 volatilization during composting. After composting, the total nitrogen loss rate of the 3 piles (A, B and C) ranged from 16.90% to 25.10%, and the proportion of NH3 volatilization in total nitrogen loss ranged from 68.49% to 72.97%. In pile B, more NH4+-N was transformed into NO3--N, and the NO3--N of pile B was increased by 30.31% and 8.98% compared with that of pile A and pile C, respectively. The structural equation model showed that amine nitrogen (AN) was most easily transformed into NH4+-N under different ventilation rates. When the ventilation rate was 2.9 m3/(m3·h), the microorganism was more active, which promoted the accumulation of amino sugar nitrogen (ASN). In addition, NH4+-N was transformed into non-biodegradable hydrolysable unknown nitrogen (HUN), which increased the fixation of nitrogen. Considering both maturity conditions and nitrogen loss, the optimum ventilation rate was 2.9 m3/(m3·h).

相似文献/References:

[1]鲁涛,朱宝飞,石春梅,等.污泥碳化系统试运行及污泥炭回归土壤可行性分析[J].中国给水排水,2018,34(21):108.
　LU Tao,ZHU Bao fei,SHI Chun mei,et al.Test Run of Sewage Sludge Carbonization System and Feasibility Analysis of Sludge Carbon Land Use[J].China Water & Wastewater,2018,34(5):108.
[2]李慧莉,何芙蓉,刘鹏程,等.外源酶强化秸秆污泥混合厌氧消化条件优化[J].中国给水排水,2020,36(15):6.
　LI Hui-li,HE Fu-rong,LIU Peng-cheng,et al.Optimization of Anaerobic Co-digestion Conditions of Straw and Sludge Enhanced by Exogenous Enzymes[J].China Water & Wastewater,2020,36(5):6.
[3]孙建升,叶雅丽,郑兴灿,等.昆明市污水处理厂污泥处理工艺的研究与探讨[J].中国给水排水,2020,36(18):108.
　SUN Jian-sheng,YE Ya-li,ZHENG Xing-can,et al.Research and Discussion on the Sludge Disposal Technology of Kunming WWTPs[J].China Water & Wastewater,2020,36(5):108.
[4]张会文,代晓炫,姜伟,等.市政污泥的水热反应减量化及水分赋存形态研究[J].中国给水排水,2021,37(7):96.
　ZHANG Hui-wen,DAI Xiao-xuan,JIANG Wei,et al.Reduction and Water Forms of Municipal Sludge Treated by Hydrothermal Reaction[J].China Water & Wastewater,2021,37(5):96.
[5]吕开雷,杨淘,陈紫君,等.电解铝烟气余热低温干化处理市政污泥工程应用[J].中国给水排水,2021,37(12):120.
　Lü Kai-lei,YANG Tao,CHEN Zi-jun,et al.Application of Low Temperature Drying in Municipal Sludge Treatment with Waste Heat of Electrolytic Aluminum Flue Gas[J].China Water & Wastewater,2021,37(5):120.
[6]李义烁,梁远,颜莹莹,等.餐厨垃圾/市政污泥/城市粪便联合厌氧消化沼液处理设计[J].中国给水排水,2021,37(14):56.
　LI Yi-shuo,LIANG Yuan,YAN Ying-ying,et al.Design of Treatment Process of Biogas Slurry from Anaerobic Co-digestion of Kitchen Waste/Municipal Sludge/Urban Excrement[J].China Water & Wastewater,2021,37(5):56.
[7]李彪,周欣,高波,等.顺义区污泥干化焚烧处理工程工艺设计[J].中国给水排水,2021,37(14):63.
　LI Biao,ZHOU Xin,GAO Bo,et al.Design of Sludge Drying Incineration Treatment Process in Shunyi District[J].China Water & Wastewater,2021,37(5):63.
[8]东东,赵珊,郭学彬,等.典型污泥高级厌氧消化工艺中恶臭物质的分布特征[J].中国给水排水,2021,37(21):7.
　DONG Dong,ZHAO Shan,GUO Xue-bin,et al.Distribution Characteristics of Odorants in Typical Sludge Advanced Anaerobic Digestion Process[J].China Water & Wastewater,2021,37(5):7.
[9]程文,蒋岚岚,耿震,等.太原市城市污水厂污泥资源化利用工程设计[J].中国给水排水,2022,38(24):72.
　CHENGWen,JIANGLan-lan,GENGZhen,et al.Engineering Design of Sludge Resource Utilization in Taiyuan Municipal Wastewater Treatment Plant[J].China Water & Wastewater,2022,38(5):72.
[10]许谦,蒋才芳,何志健,等.南宁市污泥处理处置工艺分析及展望[J].中国给水排水,2023,39(10):31.
　XUQian,JIANGCai-fang,HEZhi-jian,et al.Analysis and Prospect of Urban Sludge Treatment and Disposal Process in Nanning City[J].China Water & Wastewater,2023,39(5):31.

更新日期/Last Update: 2023-03-01