检索结果-南通市图书馆

Fungal diversity and its mechanism of community shaping in the milieu of sanitary landfill

Frontiers of Environmental Science & Engineering 2021年第4期15卷 325-335页

作者： Rong Ye Sai Xu Qian Wang Xindi Fu Huixiang Dai Wenjing Lu School of Environment Tsinghua UniversityBeijing 100084China Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094China CHN Energy Technology&Environment Group Co. Ltd.Beijing 100039China

Land filling is the main method to dispose municipal solid waste in *** the decomposition of organic waste in landfills,fungi play an important role in organic carbon degradation and nitrogen ***,fungal composition and potential functions in landfill have not yet been *** this study,refuse and leachate samples with different areas and depths were taken from a large sanitary landfill in Beijing to identify fungal communities in *** high-throughput sequencing of ITS region,474 operational taxonomic units(OTUs)were obtained from landfill samples with a cutoff level of 3%and a sequencing depth of *** results indicates that Ascomycota,with the average relative abundance of 84.9%,was the predominant phylum in landfill fungal *** the genus level,Family Hypocreaceae unclassified(15.7%),Fusarium(9.9%)and Aspergillus(8.3%)were the most abundant fungi found in the landfill and most of them are of saprotrophic lifestyle,which plays a big role in nutrient cycling in *** existed both in landfilled refuse and leachate while both the richness and evenness of fungal communities were higher in the *** addition,fungal communities in landfilled refuse presented geographic variances,which could be partly attributed to physical habitat properties(pH,dissolved organic carbon,volatile solid,NH_(4)^(+),NO_(2)^(−)and NO_(3)^(−)),while NO_(3)^(−)was considered the most significant factor(p<0.05)in shaping fungal community.

关键词： sanitary landfill Fungal community Diversity Saprotroph Physical habitat Environmental factor

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

Environmental factors affecting growth of grasses，herbs and woody plants on a sanitary landfill

引用

Journal of Environmental Sciences 1994年第4期6卷 504-513页

作者： Lan Chongyu Wong Minghung(Department of Biology and Center for Waste Recycling &Environmental Biotechnology, Hong Kong BaptistCollege, 224 Waterloo Road, Kowloon, Hong Kong)

The present study aims at studying relationships between various environmental factors andplant performance on a completed sanitary landfill. Three sites were chosen for comparison: an on-sitelow landfill gas region with a rich vegetation growth (Site L) , an on-site high landfill gas region with apoor vegetation growth (Site H), an off site control region (Site N) which located close to the GinDrinkers' Bay landfill. In Site H, where the levels of methane and carbon dioxide were higher, growth oftrees, shrubs and climbing plants are adversely affected, but not herbs and grasses. Analysis of correla-tion coefficient indicated that carbon dioxide and methane showed a negative correlation with the growth oftrees and shrubs. In Site H, the higher levels of conductivity, Kjeldah-N, Ammonium-N, and variousheavy metals, such as Mn were also exerted their adverse effect on plant growth. Trees tolerant to land-fill gas , e. g. Acacia confusa . would be a better choice for planting on sanitary landfills , in addition to theuse of shallow-rooted trees. Grasses and herbs are less susceptible to landfill gas due to their shallow-rootsystems. Hydroseeding of grasses would ensure a better plant coverage in areas with a moderate level oflandfill gas. Installation of a ventilation system might be needed for areas with a high level of landfill gas.

关键词： sanitary landfill restoration vegetation landfill gas soil factors.

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

Effects of calcined aluminum salts on the advanced dewatering and solidification/stabilization of sewage sludge

引用

Journal of Environmental Sciences 2011年第7期23卷 1225-1232页

作者： Guangyin Zhen Xiaofei Yan Haiyan Zhou Hua Chen Tiantao Zhao Youcai Zhao The State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and Engineering Tongji University Shanghai 200092 China Shanghai Sewage Company Shanghai 200233 China Shanghai Laogang Waste Treatment Company Shanghai 201302 China

The high moisture content （80%） in the sewage dewatered sludge is the main obstacle to disposal and recycling. A chemical dewatering and stabilization/solidification （S/S） alternative for the sludge was developed, using calcined aluminum salts （AS） as solidifier, and CaCl 2 , Na 2 SO 4 and CaSO 4 as accelerators, to enhance the mechanical compressibility making the landfill operation possible. The properties of the resultant matrixes were determined in terms of moisture contents, unconfined compressive strength, products of hydration, and toxicity characteristics. The results showed that AS exhibited a moderate pozzolanic activity, and the mortar AS 0 obtained with 5% AS and 10% CaSO 4 of AS by weight presented a moisture contents below 50%–60% and a compressive strength of （51.32 ± 2.9） kPa after 5–7 days of curing time, meeting the minimum requirement for sanitary landfill. The use of CaSO 4 obviously improved the S/S performance, causing higher strength level. X-ray diffraction, scanning electron microscopy and thermogravimetry- differential scanning calorimetry investigations revealed that a large amount of hydrates （viz., gismondine and CaCO 3 ） were present in solidified sludge, leading to the depletion of evaporable water and the enhancement of the strength. In addition, the toxicity characteristic leaching procedure （TCLP） and horizontal vibration （HJ 557-2009） leaching test were conducted to evaluate their environmental compatibility. It was found that the solidified products conformed to the toxicity characteristic criteria in China and could be safely disposed of in a sanitary landfill.

关键词： solidification/stabilization solidifier pozzolanic activity leaching test sanitary landfill

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

landfill leachate production, quality and recirculation treatment in northeast China

引用

Journal of Environmental Sciences 2006年第4期18卷 625-628页

作者： ZHAO Qing-liang LIU Xue-yan QI Xu-dong LIU Zhi-gang School of Municipal and Environment Engineering Harbin Institute of Technology Harbin 150090 China

landfill leachate recirculation treatment process is a promising and economic way in northeast China due to the distinct season variation. In order to study the impact of recirculation on leachate production and its quality, two simulated sanitary landfill reactors, one with leachate recirculation and the other without, were placed outdoor in Harbin. The two-year experimental results indicated that leachate production was reduced by 86% with leachate recirculation and less or no facility for leachate treatment required. Recirculation could improve the leachate quality dramatically with lower COD, SS, NF4-N and higher pH level. Recirculation also could enhance waste degradation and stabilization and improve the efficiency of landfill. This study confirmed that leachate recirculation was a very feasible way for on-site landfill leachate treatment in cold areas.

关键词： cold area sanitary landfill leachate recirculation solid waste

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

Microbiological indication of municipal solid waste landfill non-stabilization

引用

Journal of Environmental Sciences 2004年第4期16卷 662-665页

作者： ZHOUQi-xing SYLVESTERRunyuzi YUJi-yu ZHANGQian-ru KeyLaboratoryofTerrestrialEcologicalProcess InstituteofAppliedEcologyChineseAcademyofSciencesShenyang110016China DepartmentofEnvironmentalEngineering ZhejiangUniversityHangzhou310029China TianzilinglandfillCentre Hangzhou310011China

Accidental collapse resulted from unstable factors is an important technological problem to be solved in sanitary landfill. Microbiological degradation of organic matters in landfilled solid waste are an important unstable factor. A landfill reactor was thus manufactured and installed to examine quantitative and population dynamics of microorganisms during degradation of landfilled solid waste. It was showed that unstable landfill can be reflected and indicated by microbiological features such as rapidly decreased growth amount of microorganisms, no detection of fungi and actinomyces, and changing the dominant population into methanogenic bacteria and Acinotobacter.

关键词： municipal solid waste sanitary landfill unstable factor microbiological indication

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

landfill Site Suitability Assessment Using Geographic Information System (GIS) and Analytic Hierarchy Process (AHP) in Butuan City, Philippines

引用

Journal of Environmental & Earth Sciences 2023年第1期5卷 95-107页

作者： Francis Jhun T.Macalam Kaleb P.Arreza Angelica T.Magpantay Kristine Y.Rabaño Department of Environmental Science and Technology College of Science and MathematicsUniversity of Science and Technology of Southern PhilippinesCagayan de Oro Campus9000Philippines Department of Environmental Science College of Forestry and Environmental StudiesMindanao State University9023Philippines Interdisciplinary Studies Center for Integrated Natural Resources and Environment Management College of Forestry and Natural ResourcesUniversity of the Philippines Los BañosLaguna4031Philippines School of Environmental Science and Management University of the Philippines Los BaňosLaguna4031Philippines

landfilling is one of the most effective and responsible ways to dispose of municipal solid waste(MSW).Identifying landfill sites,however,is a challenging and complex undertaking because it depends on social,environmental,technical,economic,and legal *** study aims to map the optimal sites that were environmentally suitable for locating a landfill site in Butuan City,*** reference to the policy requirements from DENR Section I,landfill Site Identification Criteria and Screening Guidelines of National Solid Waste Management Commission,the integration of a Geographic Information System(GIS)model builder and Analytical Hierarchy Process(AHP)has been used in this study to address the aforementioned challenges related to the landfill site suitability *** on the generated sanitary landfill suitability map,results showed that Barangay Tungao(1131.42967 ha)and Florida(518.48 ha)were able to meet and consider the three(3)main components,namely economic,environmental,and physical criteria,and are highly suitable as landfill site locations in Butuan *** is recommended that there will conduct a geotechnical evaluation,involving rigorous geological and hydrogeological assessment employing a combination of site investigation and laboratory *** addition,additional specific social,ecological,climatic,and economic factors need to be considered(*** impact on humans,flora,fauna,soil,water,air,climate,and landscape).

关键词： Geographic information system sanitary landfill Analytic hierarchy process Butuan City Site suitability

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

ENGINEERING ASPECTS OF landfillING MUNICIPAL SOLID WASTE

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2001年第1期2卷 35-41页

作者：胡敏云陈云敏 Department of Civil Engineering Zhejiang University Hangzhou China

sanitary landfilling is the most important method of municipal solid waste disposal in China. landfill sites are always set up in mountain valley, on plain or beside seashore. A complete landfill consists of base system, cover system, and leachate collection and gas extraction system. This paper reviews the state-of-the-art landfilling technology in China and collection discusses research projects for engineers.

关键词： municipal solid waste sanitary landfill final cover base leachate landfill gas

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

A Life Cycle Comparison of Remote, Deployed Expeditionary Waste Management Scenarios

引用

Journal of Environmental Protection 2021年第2期12卷 141-159页

作者： David Chester Chandrani Mukherjee Jeremy Slagley Eric Mbonimpa Thomas Hornstein Department of Systems Engineering and Management Air Force Institute of Technology Wpafb OH USA

The current barrier to acquisition and utilization of viable waste-to-energy (WTE) technologies at remote or deployed expeditionary sites requires high capital and operation & maintenance costs. The impacts to environment and human health of differing expeditionary waste management strategies were compared using the Life Cycle Assessment software SimaPro 8.0. Emissions of individual waste management scenarios were compiled from peer-reviewed literature, converted to values compatible with SimaPro’s waste scenario inputs, and the calculated impacts compared using SimaPro’s pre-loaded methodologies. These calculated impacts and the economic impacts confirm that open-air burning of waste is not only dangerous to humans and the environment, but is also not cost-effective. Considering the economic effects and the mitigated human and environmental health impacts, WTE technologies may be a viable waste management strategy for the future.

关键词： Life Cycle Assessment (LCA) Municipal Solid Waste (MSW) Incineration sanitary landfill Open Burn Pits

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

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

在线全文

在线全文

在线全文

在线全文

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

在线全文

在线全文

在线全文

在线全文

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：