[1]董颐玮,梁栋,李丹阳,等.沼液主要养分含量特征分析[J].江苏农业学报,2021,(05):1206-1214.[doi:doi:10.3969/j.issn.1000-4440.2021.05.016]
 DONG Yi-wei,LIANG Dong,LI Dan-yang,et al.Characteristic analysis of main nutrient content in biogas slurry[J].,2021,(05):1206-1214.[doi:doi:10.3969/j.issn.1000-4440.2021.05.016]
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沼液主要养分含量特征分析()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2021年05期
页码:
1206-1214
栏目:
耕作栽培·资源环境
出版日期:
2021-10-30

文章信息/Info

Title:
Characteristic analysis of main nutrient content in biogas slurry
作者:
董颐玮12 梁栋134 李丹阳13 靳红梅1234
(1.江苏省农业科学院农业资源与环境研究所,江苏南京210014;2.江苏大学环境与安全工程学院,江苏镇江212013;3.江苏省有机固体废弃物资源化协同创新中心,江苏南京210095;4.农业农村部种养结合重点实验室,江苏南京210014)
Author(s):
DONG Yi-wei12LIANG Dong134LI Dan-yang13JIN Hong-mei1234
(1.Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;2.School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China;3.Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, China;4.Key Laboratory of Crop and Livestock Integrated Farming, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China)
关键词:
沼液养分含量特征分析
Keywords:
biogas slurrynutrient contentcharacteristic analysis
分类号:
S141.4
DOI:
doi:10.3969/j.issn.1000-4440.2021.05.016
文献标志码:
A
摘要:
农村沼气发展是推进农业有机废弃物资源化利用的重要途径。沼液具有资源属性,为全面掌握沼液全国尺度的主要养分含量特征,本研究收集了近二十年在中国发表的关于沼液还田的研究论文,挖掘了以猪粪、牛粪、鸡粪等为发酵原料的沼气工程及农村户用沼气池所产生的沼液样本的主要养分(TN、TP和TK)含量与其速效养分含量等理化指标,进一步分析了全国不同区域、不同发酵原料的沼液的主要养分含量特征。研究发现,全国范围内猪粪沼液中TN、TP和TK平均含量为1 166.71 mg/L、291.60 mg/L和1 144.26 mg/L;牛粪沼液中TN、TP和TK平均含量分别为1 488.59 mg/L、561.67 mg/L和1 679.10 mg/L;鸡粪沼液中TN、TP和TK平均含量分别为3 226.13 mg/L、959.71 mg/L和2 858.31 mg/L;户用沼气池沼液中TN、TP和TK平均含量分别为1 369.31 mg/L、665.90 mg/L、1 240.21 mg/L。猪粪沼液中NH+4-N和NO-3-N含量分别占TN含量的51.2%和5.8%,DP含量占TP含量的89.6%,DK含量占TK含量的86.2%,分析结果表明沼液中氮、磷和钾的总量与其速效养分含量间存在显著(P<0.05)的正相关关系。不同地区沼液中的养分含量存在明显差异,在区域尺度上分析土地承载力和环境风险评价时,应充分考虑地区间不同沼液中养分含量的差异性。本研究结果对推动沼液合理资源化,准确评估区域环境承载力,有效防控区域环境污染具有重要意义。
Abstract:
The development of rural biogas is an important way to promote the resource utilization of agricultural organic waste. Biogas slurry has resource attributes. In order to fully grasp the characteristics of main nutrient content in biogas slurry at the national scale, this study collected domestic research papers on the return of biogas slurry to the field in the past two decades, and excavated the use of pig manure cow manure, and chicken manure. The contents of main nutrients (TN, TP and TK) in biogas slurry samples produced by biogas projects and rural household biogas digesters were explored, and the main nutrient content characteristics of biogas slurry with different fermentation raw materials in different regions of China were further analyzed. It was found that the average contents of TN, TP and TK in pig manure biogas slurry were 1 166.71 mg/L, 291.60 mg/L and 1 144.26 mg/L. The average contents of TN, TP and TK in cow manure biogas slurry were 1 488.59 mg/L, 561.67 mg/L and 1 679.10 mg/L. The average contents of TN, TP and TK in chicken manure biogas slurry were 3 226.13 mg/L, 959.71 mg/L and 2 858.31 mg/L. The average contents of TN, TP and TK in the household biogas digesters were 1 369.31 mg/L, 665.90 mg/L and 1 240.21 mg/L. The contents of NH+4-N and NO-3-N in the pig manure biogas slurry accounted for 51.2% and 5.8% of the TN content, respectively, the DP content accounted for 89.6% of the TP content, and the DK content accounted for 86.2% of the TK content. The results showed that the total contents of nitrogen, phosphorus and potassium in biogas slurry were positively correlated with their available nutrient contents. The nutrient content of biogas slurry in different regions was significantly different. When analyzing land carrying capacity and environmental risk assessment at regional scale, the differences of nutrient content in different biogas slurry should be fully considered. The results of this study are of great significance for promoting the rational utilization of biogas slurry, accurately assessing the regional environmental carrying capacity, and effectively preventing and controlling regional environmental pollution.

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备注/Memo

备注/Memo:
收稿日期:2020-01-09基金项目:江苏省农业科技自主创新基金项目[CX(20)1011];农业农村部种养结合重点实验室开放课题(202006)作者简介:董颐玮(1995-),男,江苏镇江人,硕士研究生,研究方向:农业废弃资源管理及开发利用研究。通讯作者:靳红梅,(E-mail)hmjin@jaas.ac.cn
更新日期/Last Update: 2021-11-09