基于土地利用的污泥-餐厨蚯蚓堆肥中碳氮元素的转化特征

周有为; 陈吉升; 何雷; 邢美燕

doi:10.13205/j.hjgc.202402002

基于土地利用的污泥-餐厨蚯蚓堆肥中碳氮元素的转化特征

doi: 10.13205/j.hjgc.202402002

1. 同济大学环境科学与工程学院, 上海 200092;
2. 青岛市城市规划设计研究院, 山东青岛 266021

基金项目:

同济大学“双带头人”教师党支部书记学术能力提升计划(0400219423)

国家自然科学基金资助面上项目(51679168)

详细信息

作者简介:
周有为(1996-),男,硕士研究生,主要研究方向为污水污泥生物生态处理技术。747511935@qq.com

通讯作者:
邢美燕(1977-),女,副教授,主要研究方向为污水污泥生物生态处理技术。xingmeiyan@tongji.edu.cn

计量
- 文章访问数: 118
- HTML全文浏览量: 28
- PDF下载量: 7
- 被引次数: 0
出版历程
- 收稿日期: 2023-08-30
- 网络出版日期: 2024-04-28

TRANSFORMATION CHARACTERISTICS OF CARBON AND NITROGEN IN SLUDGE-KITCHEN EARTHWORM COMPOST BASED ON LAND USE

1. College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;
2. Qingdao Urban Planning and Design Institute, Qingdao 266021, China

摘要

摘要: 我国城市剩余污泥有机物含量低,与厨余垃圾协同处理处置引起广泛关注。以城市污泥和厨余垃圾为堆肥原料,锯末为调理剂,考察二者协同堆肥的工艺性能,探讨基于土地利用为目的的处置途径下碳、氮元素的转化特征。结果表明:在含水率为(73±2)%,温度为(23±1)℃的条件下,蚯蚓能够在剩余污泥和餐厨垃圾中存活和生长并提高堆肥稳定化程度;在为期60 d的堆肥周期后,蚯蚓组的TOC平均降解率为32.62%左右,而对照组的平均降解率为27.13%左右,蚯蚓组的TN增幅为18.90%~29.80%,而对照组为15.83%~27.40%,C/N在堆肥的前后都有所降低,且蚯蚓组的降解率更高;剩余污泥∶餐厨垃圾∶锯末=4∶3∶3(以干重计)堆肥环境下的蚯蚓生长繁殖特征更为优良。市政污泥、餐厨垃圾、锯末联合蚯蚓堆肥处理,可以有效加快堆肥进程,提高有机物的稳定化和资源化利用的程度,利于进行后续土地利用。
- 蚯蚓堆肥 /
- 剩余污泥 /
- 餐厨垃圾 /
- 有机物转化
Abstract: Due to the low organic content of municipal residual sludge, collaborative treatment and disposal of kitchen waste has attracted wide attention. Using municipal sludge and kitchen waste as raw materials and sawdust as the conditioner, this paper investigated the process performance of co-composting and discussed the transformation characteristics of carbon and nitrogen elements under the disposal approach based on land use. The results indicated that under the conditions of(73±2)% moisture content and(23±1)℃ temperature, earthworms could survive better and improve the stability of vermicompost. Specifically, after a 60-day composting cycle, the average degradation rate of TOC in the earthworm group was about 32.62%, while that in the control group was about 27.13%. The increase rate of TN in the earthworm group was 18.90% to 29.80%, while that in the control group was 15.83% to 27.40%, and the C/N decreased obviously before and after composting. The degradation percentage of the earthworm group was higher. The growth and reproduction characteristics of earthworms in the compost environment were better with a ratio of residual sludge:kitchen waste:sawdust=4:3:3(by dry weight). Therefore, municipal sludge, kitchen waste, and sawdust combined with vermicomposting treatment can effectively accelerate the composting process, and improve the stability of organic matter and the degree of resource utilization, which is conducive to the subsequent land use.
- vermicomposting /
- dewatered sludge /
- kitchen waste /
- organic conversion

HTML全文

参考文献(25)

[1]	王莉,何蓉,雷海涛.城镇污水处理厂污泥处理处置技术现状综述[J].净水技术,2022,41(11):16-21 ,69.
[2]	易志刚.餐厨垃圾收运与资源化利用研究进展[J].中国资源综合利用,2021,39(12):116-119 ,125.
[3]	XIAOMENG C,YUE Z,LIU Y,et al.Identifying the specific pathways to improve nitrogen fixation of different straw biochar during chicken manure composting based on its impact on the microbial community[J].Waste Management,2023,170:18-16.
[4]	JUN Z,YUNPING H,SU X,et al.Succession and change of potential pathogens in the co-composting of rural sewage sludge and food waste[J].Waste Management,2022,149:248-258.
[5]	ENEBE M C,ERASMUS M.Vermicomposting technology:a perspective on vermicompost production technologies,limitations and prospects[J].Journal of Environmental Management,2023,345:15.
[6]	MA J,ZHANG L,LI A.Energy-efficient co-biodrying of dewatered sludge and food waste:synergistic enhancement and variables investigation[J].Waste Management,2016,56:411-422.
[7]	刘劲驰,张苏皖,龚习炜,等.餐厨垃圾资源化处理研究与展望[J].资源节约与环保,2020(6):141,143.
[8]	CHEN Z,LI Y,PENG Y,et al.Feasibility of sewage sludge and food waste aerobic co-composting:physicochemical properties,microbial community structures,and contradiction between microbial metabolic activity and safety risks[J].Science of the Total Environment,2022,825:154047.
[9]	PETRIC I,HELIC'A,AVDIC'A,Evolution of process parameters and determination of kinetics for co-composting of organic fraction of municipal solid waste with poultry manure[J].Bioresource Technology,2012,117:107-116.
[10]	BAYU D,ALEŠH,PAVELŠ,et al.Influence of earthworms on the behaviour of organic micropollutants in sewage sludge[J].Journal of Cleaner Production,2023,416:12.
[11]	阚泽鑫,朱宁,龙玉娇,等.高温预处理联合生物炭对猪粪堆肥中抗生素消减和重金属钝化的促进作用[J].农业环境科学学报,2023,42(4):879-890.
[12]	徐俊杰,夏慧,魏枫沂,等.污泥蚯蚓堆肥对染色体和质粒上耐药基因归趋的影响[J].中国环境科学,2023,43(2):694-701.
[13]	SANCHEZ-HERNANDEZ J.Dual role of vermicomposting in relation to environmental pollution:detoxification and bioremediation,2019:217-236.
[14]	LIQIANG M,WEIGUANG L,SHUMEI Z,et al.Improving sewage sludge compost process and quality by carbon sources addition[J].Scientific Reports,2021,11(1):8.
[15]	王峰,缪丽娟,张明月,等.牛粪矿物混合蚯蚓堆肥中堆制物Pb和Cd吸附性能变化[J].农业工程学报,2021,37(6):197-204.
[16]	王清威,张松林,臧兰兰,等.餐厨垃圾堆肥处理的蚯蚓适应性研究[J].环境工程,2014,32(9):119-124.
[17]	ZHOU Y,ZHANG D,ZHANG Y,et al,Evaluation of temperature on the biological activities and fertility potential during vermicomposting of pig manure employing Eisenia fetida[J].Journal of Cleaner Production,2021,302:126804,10.
[18]	王蕊,邰俊,赵由才,等.餐厨垃圾资源化衍生品的堆肥中试实验[J].环境工程学报,2021,15(9):3012-3019.
[19]	N A S,SUMEDHA C.Assessment of in situ stabilization and heavy metal toxicity reduction of sugar mill pressmud through pilot scale composting[J].Environmental Monitoring and Assessment,2023,195(8):951-951.
[20]	刘娟,沈玉君,罗文海,等.盐含量对餐厨垃圾好氧堆肥腐殖化过程及微生物演变的影响[J].农业工程学报,2022,38(19):190-201.
[21]	张红玉.碳氮比对厨余垃圾堆肥腐熟度的影响[J].环境工程,2013,31(2):87-91.
[22]	王浩羽,韦杰,孙进宇,等.蚯蚓对不同p H值土壤中铬赋存及细菌群落的影响特征[J].农业环境科学学报,2022,41 (7):1472-1482.
[23]	BAYU D,ALES H,PAVEL S,et al.Vermicomposting technology as a process able to reduce the content of potentially toxic elements in sewage sludge[J].Agronomy,2022,12(9):2049-2049.
[24]	DOORGHA R,ESPERANZA H,DEVI G S.Reduction of microplastics in sewage sludge by vermicomposting[J].Chemical Engineering Journal,2022,450(P3):12.
[25]	KHATUA C,SENGUPTA S,BALLA K V,et al.Dynamics of organic matter decomposition during vermicomposting of banana stem waste using Eisenia fetida[J].Waste Management,2018,79:287-295.