Sustainability Commons^™

Green Transformation Paths Of Closed Coalmine Industrtry In Coal Resources Cities, Zhang Lifeng, Wang Qiuju

Coal Geology & Exploration

With the implementation of China's energy supply-side structural reform and coal production capacity policy, the number of coal mines closed in China is increasing year by year, and how to transform the industry after the closure of coal mines has become an urgent problem. Most of the closed coal mines are concentrated in coal resource-based cities, and the development of closed coal mines is inseparable from the development of coal resource-based cities. The selection of their advantageous industries should be consistent with the direction of industrial transformation of the cities where they are located, so as to to make effective …

Construction And Application Of Gas Resource Estimation And Evaluation Method In Abandoned Coal Mines, Liu Xiaolei, Yan Jiangwei, Liu Cao, Jia Tianrang, Feng Zhendong, Wei Jianping, Wei Guoying

Coal Geology & Exploration

On the basis of on the exploration and development status of gas resources in abandoned coal mines in China, the idea of “resource estimation + preliminary evaluation” was put forward to reasonably evaluate the gas resources in abandoned coal mines. The estimation and evaluation method of gas resources in abandoned coal mines was established, which has the advantages of less required parameters and strong practicability. According to the gas emission characteristics and abandoned time, the types of abandoned coal mines were divided into two categories: stable and unstable. Unstable coal mines were further divided into early, middle and late stages …

Mineral Composition Characteristics And Petroleum Geological Significance Of Tight Sandstone Of Longtan Formation In Weixin Area, Eastern Yunnan, Xing Huitong, Zhang Xiaoli, He Jinxian, Cao Wenjie, Yang Tiantian, Wang Jian, Shi Shuai

Coal Geology & Exploration

Tight gas is an unconventional resource developed in low-porosity and ultra-low permeability sandstone and has rich potential oil and gas reserves. However, due to its tight and low permeability, fracturing is a necessary means for efficient development of tight gas. The reservoir characteristics and material composition of sandstone are of great significance to the preliminary evaluation of resource potential and production capacity of the dense sandstone reservoirs. By using X-ray diffraction, microscopy, scanning electron microscopy and other technical means, ten outcroppings of tight sandstone from coal measures of Permian Longtan Formation in Weixin area of eastern Yunnan Province were qualitatively …

Characteristics Of Coal And Gas Outburst And Controlling Mechanism Of Stress Field In The Hanging Wall Of Normal Faults, Cao Yunxing, Zhang Haiyang, Zhang Zhen, Liu Gaofeng

Coal Geology & Exploration

The fault zone is the main geological unit where coal and gas outbursts occur. Statistics of many coal and gas outbursts show that the number and intensity of the outbursts in the hanging wall are significantly greater than those in the foot wall for normal faults. However, there are few studies on the geological mechanism of this phenomenon, especially the variation of the in-situ stress field in the hanging wall of normal faults before and after mining, and its controlling mechanism of coal and gas outbursts that has not been completely demonstrated. In view of this, the normal fault DF …

Propagation Characteristics Of Flame Wave And Shock Wave During The Gas Explosion In Complex Pipeline Network, Jia Jinzhang, Wang Dongming, Niu Xin, Li Bin, Zhu Jinchao, Wang Fengxiao

Coal Geology & Exploration

For the purpose of further exploring the flame wave propagation characteristics of the gas explosion shock wave, the gas explosion experiment was carried out in a complex pipe network designed and built by ourselves. In the experiment, a high precision pressure sensor and a temperature sensor were used to collect pressure changes and temperature peak data. By using the flame sensor to collect the flame wave signal in the process of explosion, the flame wave propagation velocity was calculated according to the theoretical formula, and the Origin software was used to comprehensively process the experimental data to study the shock …

Construction And Application Of “Coal-Water-Environment” Coordinated Development Evaluation Index System：A Case Study Of Sihe Minefield, Wang Qingwei, Guo Biao, Song Mei, Yan Qiang

Coal Geology & Exploration

The scientific construction of the relationship among coal, water, and the environment is the basis of green coal development during the process of coal mining. This paper focus on the coal mining and protection of water resources and the ecological environment, and builds a green coordinated development evaluation index system by taking coal, water and environment into consideration. In this study, the methodology used is holistic and hierarchical principles of system theory. The selection of indicators considering resource factors, technological development and environmental concept progress are determined in accordance with the latest industry regulations, technical standards and local guiding planning. …

Soil Fertility And Heavy Metal Risk Assessment In Jvhugeng Mining Area, Muli Coalfield, Qinghai Province, Wang Tong, Zhang Mei, Xu Hui, Zhang Guchun, Wang Yanjun, Fang Huiming, Li Yuan

Coal Geology & Exploration

The mining of coal resources at the Jvhugeng mining area, Muli Coalfield, has damaged the ecological environment of the mining area. Through the determination of soil fertility indexes and heavy metal indexes in the study area, soil fertility and heavy metal ecological risks are evaluated by the principal component analysis method and the potential ecological hazard index method. The results show that the soil in the mining area is alkaline as a whole, rich in organic matters, total nitrogen, and available potassium, but lacking in available phosphorus. It has the characteristics of being rich in nitrogen potassium and poor in …

Directional Drilling Technology And Equipment For Gas Drainage In Large Panel Of Underground Coal Mines, Xu Chao, Jiang Lei, Chen Pan, Zhang Di

Coal Geology & Exploration

In recent years, with the progress of directional drilling technology and equipment in underground coal mines, a new model of advanced and comprehensive control of gas in the large panel of Baode Coal Mine is formed by covering the whole work with ultra-long directional drilling along the coal seam, hence the panel of the unexcavated roadway can be fully pre-pumped in advance to avoid gas overrun. As gas extraction in large panel requires a single construction along the coal seam borehole to run through the whole working face length, this paper starts from the construction technology of ultra-long directional drilling …

A Spatial Assessment Of Impacts To The Flats Fishery By Recreational Boating In The Florida Keys National Marine Sanctuary, Kristin Anderson

All HCAS Student Capstones, Theses, and Dissertations

The recreational flats fishery in the Florida Keys is a significant component of the marine resource-based economy, exceeding $465 million (USD) in annual economic impact. Permit (Trachinotus falcatus), bonefish (Albula vulpes), and tarpon (Megalops atlanticus) are the three main species targeted by flat fishers. Those participating in this fishery generally practice catch-and-release angling therefore, the fishery is considered a more sustainable marine use compared to more traditional commercial fisheries. However, with population and tourism rising in South Florida, the fishery is increasingly threatened by habitat degradation and user conflicts. Ongoing revisions to the Florida …

Landscape Materials: Impact On Water Quality At Different Temperatures, Vignesh Tiruvannamalai '24

Distinguished Student Work

The purpose of this experiment is to analyze how commonly used landscaping materials (wood mulch, rubber mulch, and landscape stones) will affect the quality and chemical composition of runoff water they come into contact with, and how this will be impacted by different temperatures experienced in different climatic regions.

In order to conduct this experiment, always wear safety goggles and gloves when handling experiment materials. First, prepare the landscaping materials and rinse the containers and lids. Then, place the designated amount of landscaping materials in each container and fill each with 2.27 liters of filtered water, subsequently covering them and …

Ens 300: Principles Of Sustainability Oer Curation, Chealsye Bowley

Curated OER Collections

This OER curation is an annotated bibliography of prospective OER for the GVSU course ENS 300: Principles of Sustainability, assembled by request from the instructor.

The Role Small And Medium Enterprises’ In Sustainability Coastal Media Solutions Goal 8 Un Sdg, Bridgette Devlin

Goal 8: Decent Work and Economic Growth

No abstract provided.

An Exploration Of A Year At The Ursinus Food Forest, Victoria Bearden

Environment and Sustainability Presentations

The Ursinus Food Forest began a commitment to a new form of sustainable land management at Whittaker Environmental Research Station. This management integrates lessons from urban agriculture, urban forestry, and agroforestry (see Clark & Nichols 2013) with principles of permaculture (Jacke et al 2005). Begun in 2017, and this past fall marked 2 years since the planting of phase one in 2019. In the fall of 2021 students, faculty, facilities, and volunteers planted the second phase of the food forest site, which added 7 new food producing species. Including this, many projects were created to enhance the site throughout the …

Has The Time (Finally!) Arrived To Talk About Sustainable Lifestyles?, Maurie J. Cohen

Chemistry Sustainability and the Circular Economy

Presentation at the Princeton American Chemical Society (PACS) event in recognition of the 52nd International Earth Day

Give Full Play To National Strategic S&T Force To Provide Vigorous Support For Carbon Peak And Carbon Neutrality Goals, Jingdong He, Daquan Cao, Xiaonan Duan, Tao Zhao, Qifeng Li, Yu Xiao, Zhongmin Liu, Haisheng Chen, Chibiao Ding

Bulletin of Chinese Academy of Sciences (Chinese Version)

Scientific and technological innovation plays key supporting and leading roles to achieve "carbon peaking and carbon neutrality" goals (referred to as "dual carbon"). It is necessary to make sustained efforts in the three aspects, namely energy structure adjustment, energy consumption, and carbon sequestration, and build a novel multi-energy-integrated energy production and utilization system based on hydrogen energy, energy storage, and methanol, in which the main lines are clean and efficient utilization of fossil energy, large-scale utilization and complementation of clean energy, low-carbon reconstruction of industrial processes, and intelligent multi-energy integration of building and transportation. In 2022, the Chinese Academy of …

Policy Framework And Technology Innovation Policy Of Carbon Peak And Carbon Neutrality, Xianchun Tan, Wen Guo, Jie Fan, Jianxin Guo, Mingyue Wang, An Zen, Liyang Su, Yi Sun

Bulletin of Chinese Academy of Sciences (Chinese Version)

Building a policy system conducive to peak carbon emissions and carbon neutrality is critical to achieving the dual carbon goals on schedule. This study sorts out and analyzes the 168 low-carbon policy texts since the 11th Five-Year Plan. It finds out the overall situation of China's low-carbon policies, as well as the characteristics of the number, effectiveness, measures of policies, and clarifies the gap in the current low-carbon policies. On this basis, around the phased characteristics of the realization of the dual carbon goals, the future policy framework of peak carbon emissions and carbon neutrality is drawn, including the timetable …

Discussion On Action Strategies Of China’S Carbon Peak And Carbon Neutrality, Guirui Yu, Tianxiang Hao, Jianxing Zhu

Bulletin of Chinese Academy of Sciences (Chinese Version)

China's carbon peak and carbon neutrality action is a huge system engineering with national coverage, country-led and universal participation, long-term sustainable implementation, requiring definite, tenacious, and adaptable action strategies. Here, based on summarizing the current situations of "carbon peak and carbon neutrality", the action strategies, technological approaches, and scientific and technological supports are discussed to achieve the "dual carbon" targets in China. It is suggested that China's "dual carbon" action should insist on "one basic concept", achieve "two macroscopic targets", implement the "three-pronged comprehensive", and "four-way simultaneous" technological paths, and practice the macro layout of "five coordination" in the national …

Analysis Of International Carbon Neutralization Strategic Actions And Technology Layout And Enlightenment Suggestions To China, Jiansheng Qu, Wei Chen, Jingjing Zeng, Yuling Sun, Qin Liao, Kaimo Guo, Aning Qin, Huijuan Pei, Fei Teng, Yanfei Liu, Fang Yue, Li'na Liu, Yun Tang, Lanchun Li

Bulletin of Chinese Academy of Sciences (Chinese Version)

Achieving carbon peak and carbon neutrality goals is a major strategic decision made by the Chinese government, which will bring extensive and profound systemic changes for the economy and society. S&T is the core driving force that supports the goal of carbon neutrality. On the basis of the related concepts of carbon neutrality, this study analyzes the strategic actions and the characteristics of technological layout of carbon neutrality in developed countries/regions and international organizations. Major countries have promoted carbon neutrality through legislative regulation, energy strategies, technology roadmaps, carbon markets and other policy actions. They focus on deploying transformative green low-carbon …

Policy Approaches To Increase Carbon Sequestration Capacity By Optimizing Layouts Of Ecological Construction, Jie Fan, Hongbing Wang, Daojing Zhou, Ning Ma, Baoyin Liu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Improving carbon sequestration capacity through ecological construction is one of the important ways to achieve the goal of "carbon neutrality" in China. Based on the analysis of the current situation and trend of ecological carbon sequestration in China, this study summarizes the main challenges in the increment of ecosystem carbon sink in China. The current situation and trend, the significant carbon sequestration capacity of forests, the recovery phase of carbon sequestration capacity of grassland, and the carbon sequestration benefits of major ecological projects are also surveyed. Then, the new challenges of China are analyzed, including the backlog of over-mature forests …

Market Mechanism And Focus Of International Cooperation To Achieve Carbon Neutrality, Lele Zou, Pu Wang, Yi Sun

Bulletin of Chinese Academy of Sciences (Chinese Version)

The market mechanism is the basis for achieving carbon neutrality. Through the market mechanism, the global cost can be the lowest to achieve carbon neutrality. Therefore, in the process of carbon neutralization, it is necessary to give full play to the decisive role of the market in resource allocation. China has explored and accumulated experience in various market mechanisms for more than 10 years, and has established the carbon market, green certificate market, white certificate market, energy market, etc. At the same time, the power system is also strengthening market-oriented reform. Nevertheless, there are still imperfect systems and conflicts among …

Carbon Neutrality Policy Measures In Global Major Economies, Jianfang Wang, Liyang Su, Xianchun Tan, Xiaoyi Chen, Chunlei Ge

Bulletin of Chinese Academy of Sciences (Chinese Version)

This study focuses on the strategies, targets and policy measures for carbon neutrality in global major economies. The research shows that due to the different socio-economic and political foundations, the transition strategy towards carbon neutrality in major economies is also varied, which can be divided into four categories:leading strategy, growth strategy, following strategy, and swing strategy. Most of them build carbon neutrality target system with the framework of "target roadmap+targets in key areas", but leading countries usually integrate targets into legislation and thus the objective is legally binding, while others tend to weaken emission reduction targets and focus on the …

Technological Approaches To Enhance Ecosystem Carbon Sink In China: Nature-Based Solutions, Guirui Yu, Jianxing Zhu, Li Xu, Nianpeng He

Bulletin of Chinese Academy of Sciences (Chinese Version)

Carbon peak in 2030 and carbon neutralization in 2060 has been established as one of the important strategic goals of China's economic and social development. During 2010-2020, the capacity of terrestrial ecosystems in China to sequester carbon dioxide (CO2) varied from 1.0 to 1.3 Gt/a, with high uncertainty. To enhance the carbon sink capacity of Chinese terrestrial ecosystems, the combination with land space planning and ecological protection is essential. It is necessary to first stabilize the existing carbon storage in these ecosystems, such as forest, grassland, wetland, coast, and others, and then implement some important ecological protection and ecological restoration …

Development Path Of Energy Science And Technology Under “Dual Carbon” Goals: Perspective Of Multi-Energy System Integration, Rui Cai, Hanxiong Zhu, Wangjun Li, Yu Xiao, Zhongmin Liu

Bulletin of Chinese Academy of Sciences (Chinese Version)

This study first analyzes the driving factors of China's realization of the "dual carbon" goals from the two aspects of necessity and urgency, and proposes that to achieve the "dual carbon" goals, China shall reshape the energy structure and related industrial systems in a scientific and orderly manner, in which technology innovation plays a crucial leading role. Then, based on the long-term research and deveopment in the energy field of the Chinese Academy of Sciences, the scientific and technological development path to lead the realization of the "dual carbon" goals with the concept of "multi-energy system integration" is proposed, and …

Carbon Neutral Transformative Technologies For Industrial Process, Suojiang Zhang, Xiangping Zhang, Wei Ge, Chunyan Shi

Bulletin of Chinese Academy of Sciences (Chinese Version)

Focusing on the four major high carbon emission industries of steel, non-ferrous, chemical industry and building materials, through research and analysis, four low carbon strategies, i.e., green hydrogen/green electricity substitution, raw material/product structure adjustment, process flow re-construction and digital intelligence, are proposed. Combining the current status and the trends of technology development in different industries, a number of advanced low-carbon technologies are suggested, key scientific and technological challenges to be solved are condensed, and suggestions and initiatives to accelerate the application of new technologies and industrial transformation and upgrading are proposed, with a view to providing support for low-carbon and …

Build New Power System To Promote Carbon Neutrality, Li Kong, Wei Pei, Jianye Rao, Yingxin Xu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Under the 'carbon peak and carbon neutrality' goal, the supply and demand of China's power system will continue to grow in the next 40 years. Firstly, this study comprehensively analyzes China's power grid system under the goal of carbon neutralization. In the future, wind power and solar power will gradually become the main power supply, which brings new tasks and challenges to the power grid to absorb the renewable energy. On this basis, the general idea and construction principles of building a new generation of power system are expounded. Then, the basic structure and form of the new generation of …

Research Progress And Development Suggestions Of Energy Storage Technology Under Background Of Carbon Peak And Carbon Neutrality, Qiong Zheng, Lixia Jiang, Yujie Xu, Song Gao, Tao Liu, Chao Qu, Haisheng Chen, Xianfeng Li

Bulletin of Chinese Academy of Sciences (Chinese Version)

Energy storage is one of the important supporting technologies to achieve the "dual carbon" goals, and it is an important means to stabilize renewable energy fluctuations and reduce the impact of large-scale new energy access on the power grid. At present, the competition of global energy resources is becoming increasingly fierce, and China is also facing significant changes in the adjustment of energy structure. To implement the energy strategy of "four revolutions and one cooperation" in the new era, and to realize the "14th Five-Year Plan" as well as the "Long-range Objectives Through the Year 2035", China needs to build …

Highly Efficient And Clean Utilization Of Fossil Energy Under Carbon Peak And Neutrality Targets, Qinggang Lyu, Zhen Chai

Bulletin of Chinese Academy of Sciences (Chinese Version)

Fossil energy utilization faces new challenges under carbon peak and carbon neutrality ("dual carbon" for short) targets. In this study, the present status of fossil energy utilization in China is summarized. Based on the situation of energy resources in China, the idea of highly efficient and clean utilization of fossil energy under dual carbon constraint is proposed. The technical development suggestions are put forward from three aspects including high efficient combustion and conversion of coal, high efficient utilization of oil and gas, and waste treatment of the chemical processing of coal. It aims to provide scientific and technological support for …

Proposal For Establishing Wide-Area Virtual Power Plant Based On Pv-Dominated Energy And Physical Energy Storage System, Liye Xiao, Jiaofeng Pan

Bulletin of Chinese Academy of Sciences (Chinese Version)

The key issues to achieve the "dual carbon" goals mainly involve three aspects:the structure of energy and power supply, the development of energy storage technology and the construction of new power system. Combined with the specific situation of China, this study analyzes and forecasts the power supply structure dominated by renewable energy; Considering the characteristics and development needs of renewable energy, the viewpoint and idea are put forward to develop physical energy storage, especially underground energy storage engineering, to meet the large-scale energy storage needs of power grid. On this basis, the overall idea is suggested for constructing wide area …

Thoughts On Regional Path Of Promoting Comprehensive Demonstration Of Low-Carbon Energy Technology Under “Dual Carbon” Goals, Zhu, Yi Wang, Jia Rui, Daquan Cao, Xiaoguang Ren, Jingdong He, Haisheng Chen, Rui Cai, Zhongmin Liu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Promoting the regional demonstration of energy technology for carbon peak and carbon neutrality (referred to as "dual carbon") is an important part of the Chinese Academy of Sciences' action plan to support the "dual carbon" goals. This study discusses the significance of carrying out the comprehensive demonstration of "dual carbon" technology from the two dimensions of "technology integration demonstration" and "typical regional demonstration". Besides, based on the existing research layout in the energy field of the Chinese Academy of Sciences, the idea and four mainlines are proposed for the Chinese Academy of Sciences to promote "multi-energy integration", which are clean …

Plant Wise, Sophia Llamas

Honors Projects

Conceptually, Plant Wise is the key to bridging the gap between preconceived ideas about vegan and vegetarianism and successfully integrating plant-based foods into your everyday life. Physically, Plant Wise is a self-educational, interactive booklet chock-full of activities intended for users to complete at their own pace. Inside this 56-page booklet, there are recipes, doodling spaces, weekly check sheets, activities to do with friends and family, challenges, and so much more. Plant Wise utilizes these activities and journaling opportunities throughout as a self-reflective vehicle to give users an experience to reflect on, which aids in the retention of what’s been learned …