检索结果-南通市图书馆

Ecological analysis of a typical farm-scale biogas plant in China

Frontiers of Earth Science 2014年第3期8卷 375-384页

作者： Na DUAN Cong LIN Pingzhi WANG Jing MENG Hui CHEN Xue LI College of Water Resources and Civil Engineering China Agricultural University Beijing 100083 China Key Laboratory for Earth Surface Processes College of Urban and Environmental Sciences Peking University Beijing 100871 China Guangdong Huianhengda Management Consulting Co. Ltd. Guangzhou 510080 China

The aim of this work was to present the common anaerobic digestion technologies in a typical farm-scale biogas plant in China. The comprehensive benefits of most biogas plants in China have not been fully assessed in past decades due to the limited information of the anaerobic digestion processes in biogas plants. This paper analyzed four key aspects （i.e., operational perfor- mance, nonrenewable energy （NE） savings, CO2 emission reduction （CER） and economic benefits （EBs）） of a typical farm-scale biogas plant, where beef cattle manure was used as feedstock. Owing to the monitoring system, stable operation was achieved with a hydraulic retention time of 18-22 days and a production of 876,000 m3 of biogas and 37,960t of digestate fertilizer annually. This could substantially substitute for the nonrenewable energy and chemical fertilizer. The total amount of NE savings and CER derived from biogas and digestate fertilizer was 2.10× 10^7 MJ （equivalent to 749.7 tee） and 9.71 × 10^5 kg, respectively. The EBs of the biogas plant was 6.84× 10^5 ***^-1 with an outputs-to-inputs ratio of 2.37. As a result, the monitoring system was proved to contribute significantly to the sound management and quantitative assessment of the biogas plant. Biogas plants could produce biogas which could be used to substitute fossil fuels and reduce the emissions of greenhouse gases, and digestate fertilizer is also an important bio-product.

关键词： biogas plant monitoring system ecologicalbenefits NE savings CO2 emission reduction economicbenefits

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research on the Knowledge System Framework of Eco-industrial Engineering

引用

Chinese Journal of Population,Resources and Environment 2012年第3期10卷 72-83页

作者： Li Chunfa Wang Xiangli Luo Yanbing Li Mengmeng School of management of Tianjin University of Technology Tianjin 300384 China Tianjin International Engineering Consultants Corporation Tianjin 300202 China

With intensified contradiction between the rapid devel- opment of modem industry and the carrying capacity of natural environment, coordinating the relationship between economic benefits and ecological benefits is a significant issue to be solved for modem industrial engineering. This paper firstly conducts the comparative analysis between traditional and ecological industry as well as traditional and modem industrial engineering, and in- dicates that eco-industrial engineering is an inevitable choice for sustainable development of modem industrial engineering; Then, based on industrial ecology, environmental economics and sustain- able development theory, the connotation and definition of eco- industrial engineering are proposed, and the theoretical and practi- cal development of the concepts of eco-industrial engineering are further investigated. Furthermore, the research subject, research content, academic system architecture and evaluation methods of eco-industrial engineering are discussed. Finally, combining the current scientific and technological development, we put forward the important scientific value and practical significance of con- structing eco-industrial engineering for the utilization of these concepts.

关键词： eco-industrial engineering knowledge system frame-work sustainable development economic benefits ecologicalbenefits

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：