煤灰渣开发利用的途径

本文在笔者研究的基础上提出了开发利用煤灰渣的途径,推荐了利用煤灰渣生产墙体材料、生产水泥及灌浆材料的有关参数。煤灰渣的开发利用不仅可减少堆放煤灰渣占用的土地和消除煤灰渣对环境的污染,而且可使企业获得显著的经济效益。     

四川燃煤电厂对周围土训的辐射影响

燃煤电厂对环境与人群所产生的辐射影响早已引起了国内外学者的关注，本文通过对四川省境内重庆，河门口，江油等燃煤电厂烟尘中天然放射性水平的分析，估算出由烟尘沉降所赞成周围土壤中天然放射性本底的年增加量不到0．1％，这说明由烟尘沉降每年对土壤所产生的辐射影响是较小的，然而由于沉降的放射性在相当长的时期内存在于土壤的表层，因此随电厂运转时间的增加，其所产生的辐射影响就必须引起重视了，本文通过对电厂周围表层与深层土中天然放射性水平的比较与分析说明，燃煤电厂的长期运转有可能使周围表层土壤中天然放射性本底增加。     

循环流化床锅炉在矿山环保中的应用

本文通过循环流化床锅炉在煤矿电厂中的应用,介绍了煤矸石发电在矿山环保治理中的作用及锅炉灰渣综合利用的几种有效途径,为煤矿办电厂提供可靠的理论依据。     

燃煤电厂与辐射影响

燃煤电厂与辐射影响ＤｏｅｓＣｏａｌ－ｆｉｒｅｄＰｏｗｅｒＰｌａｎｔＥｘｅｒｔＲａｄｉａｔｉｏｎＤａｍａｇｅｏｎＰｕｂｌｉｃ？煤燃烧后排放放射性核素对人体健康影响如何？这是个应予重视的问题。上海市放射医学研究所经过三年多的研究，突破了过去的单项评价，重...     

锦州热电总公司灰渣综合利用形成“一条龙”体系

热电厂的灰渣综合利用一直是个令人头疼的老大难问题。而锦州热电总公司自1989年开始，不断探索，走自己的路．逐步形成灰渣综合利用“一条龙”体系，取得了较好的社会效益和经济效益。一、建立灰商利用总公司从组织上保证灰渣利用工作的开展锦州热电总公司是1986年投产以供热为主、供电为辅的地方企业，现有5台75吨／时立式旋凡炉，年耗原煤叨多万吨，年排放粉煤灰3万多吨，水淬渣7万多吨。试生产期间，由于没有找到有效的综合利用措施，只好将拆装袋淋水和渣于用车运到指定地点扔掉。两年用于灰和法的处理费用高达60万元。总公司领导十分…     

四川燃煤电厂对周围土壤的辐射影响

燃煤电厂对环境与人群所产生的辐射影响早已引起了国内外学者的关注。本文通过对四川省境内重庆、河门口、江油等燃煤电厂烟尘中天然放射性水平的分析，估算出由烟尘沉降所造成周围土壤中天然放射性本底的年增加量不到０．１％，这说明由烟尘沉降每年对土壤所产生的辐射影响是较小的；然而由于沉降的放射性在相当长的时期内存在于土壤的表层，因此随电厂运转时间的增加，其所产生的辐射影响就必须引起重视了；本文通过对电厂周围表层与深层土中天然放射性水平的比较与分析说明，燃煤电厂的长期运转有可能使周围表层土壤中天然放射性本底增加。     

兰炭生产过程中固体废物的产生与利用现状分析

在对国内兰炭生产工艺流程应用及现状介绍的基础上,概括总结了旧式低温干馏阶段和现阶段兰炭生产过程中固体废物的产生节点、种类、性质和主要处置方式。结果表明,旧式低温干馏阶段,兰炭生产过程中产生的固体废物主要包括煤筛分破碎工序产生的末煤和煤矸石、筛焦工序产生的焦粉、焦油冷却收集系统产生的焦油渣等;现阶段,兰炭生产过程中产生的固体废物主要包括煤筛分破碎工序产生的末煤和煤矸石以及破碎过程中经除尘器收集的煤尘、筛焦工序产生的焦粉、废水处理污泥、焦油冷却收集系统产生的焦油渣、脱硫工序产生的脱硫残液等。其中末煤、煤矸石、煤尘、焦粉作为一般工业固废全部综合利用,废水污泥、焦油渣、脱硫残液主要掺入原料煤中自行消化处置。     

浅析电石渣的综合利用

本文对电石渣在建材、环保、化工等多个行业中的应用情况进行了分析，并着重介绍了电石渣替代石灰石生产水泥的工艺。     

对新汶矿业集团建设资源综合利用电厂的调查

从山东新汶矿业集团公司现有的综合利用电厂运行情况进行分析，叙述了该矿综合利用电厂建设的近期规划及远景发展目标，阐述了煤炭企业如何建设综合利用电厂，指明了面临的困难和问题，提出了对策和建议。     

油田放射性测井对人体的损伤及防护对策

在油田放射性测井过程中，对人体产生损伤的决定因素是人体对辐射的敏感程度，所受辐射剂量的大小及受照条件。通过对２９９人的个人剂量监测数据进行分析，指出放射性测井中主要的损伤是长期小剂量慢性效应，并针对性地提出了相应的防护措施。     

Application of coal ash to environmental improvement: Transformation into zeolite, potassium fertilizer, and FGD absorbent

The rapid increase in population and economic growth have led to an increase in energy demand. Coal reserves are distributed worldwide, and coal is now known to be the most stable and available energy source. However, utilization of coal as an energy source involves the generation of a great amount of coal ash, and the recycling rate of the ash is rather low. Coal ash is mainly used in civil construction materials, and there is a limit to the demand for coal ash by construction industries: therefore, the increasing amount of coal ash will be a serious problem in the near future. Different applications should be considered. In this paper, three environmentally-friendly methods for coal ash recycling are described. Firstly, alkali treatment can transform coal ash to zeolite, which is used in deodorant and for wastewater treatment and soil improvement. Secondly, potassium silicate fertilizer is produced from coal ash and has a higher retentivity in the soil than that of conventional fertilizers. Thirdly, emission of sulfur dioxide is controlled by flue gas desulfurization using coal ash. It is considered that environmentally-friendly use of coal ash is important from the viewpoints of energy, economy, and environmental strategy in order to realize the concept of sustainable development.     

伊犁地区煤中放射性核素对环境影响及其防治对策的探讨

在对伊梨地区煤中天然放射性核素调查研究的基础上,结合伊梨地区煤中放射性核素分布的特点、规律以及伊梨地区居民的用煤习惯,有的放矢的提出了减量化、资源化、无害化以及全过程管理原则的防治措施,为伊犁地区的经济发展,煤炭资源的合理开发和利用,防止因煤炭的开采利用而造成的污染,建设性的提出了切实可行的方案和途径。     

Coal Combustion Product: Nonhazardous Material for Mine Fill

As is the case in many other countries around the world, India's main source of electricity is coal‐fired power plants. In addition to providing energy, the burning of coal also results in large amounts of coal combustion products (CCP), the incombustible material, such as fly ash, left after the coal is burned. These materials are produced in large volume, and if they are not managed or utilized properly, they can pose a danger to the environment. This article discusses the uses of CCP, with a special emphasis on fly ash, and the role that it is currently playing and can continue to play as a mine filler for India's depleted opencast and underground coal mines.     

伴生矿开发利用辐射环境管理机制探讨

伴生矿开发利用引起的天然放射性水平升高正受到国内外的广泛关注。通过介绍和分析我国伴生矿辐射环境管理的现状及其存在的问题,认为问题的制度成因主要是监管职责不明确、资金保证制度和废物处置导则的缺失,在此基础上提出以监管机构为主导,开发废物处置示范工程和建立资金保证制度等政策建议,以推进我国伴生矿辐射环境管理的有效实施。     

利用粉煤灰制作新型建筑材料

粉煤灰不仅占用大量耕地,而且严重污染环境。针对东营地区粉煤灰的产生现状,积极开发粉煤灰的废物利用。通过对粉煤灰生产空心砌块的原料配比和生产工艺实施的调查,结果表明,利用粉煤灰生产新型建筑材料是减少占地和建材工业征地的有效途径,能变废为宝、化害为利,达到保护环境的目的。     

Utilization of coal combustion by-products in sustainable construction materials

Solid waste management is gaining significant importance with the ever-increasing quantities of industrial by-products and wastes. With the environmental awareness and scarcity of space for landfilling, wastes/by-product utilization has become an attractive alternative to disposal. Several industrial by-products are produced from manufacturing processes, service industries and municipal solid wastes. Some of these industrial by-products/waste materials could possibility be used in cement-based materials.Coal combustion by-products (CCBs) represent incombustible materials left after combustion of coal in conventional and/or advanced clean-coal technology combustors. These include fly ash, bottom ash, boiler slag, and flue gas desulfurization (FGD) by-products from advanced clean-coal technology combustors. This paper briefly describes various coal combustion products produced, as well as current best recycling use options for these materials. Materials, productions, properties, potential applications in manufacture of emerging materials for sustainable construction, as well as environmental impact are also briefly discussed.     

粉煤灰的精制及在环境中的应用研究

粉煤灰是火电厂排放的硅酸盐残渣,具有质轻、耐高温、强度高等优点,受到科研工作者的广泛关注。本文从粉煤灰的综合利用着手,分析了近年来粉煤灰的研究现状;阐述了粉煤灰的物理化学性质及粉煤灰的形成和精制;概括了当前粉煤灰的主要应用,并对今后粉煤灰的开发利用工作进行了展望。     

Study on assessment of slope stability and mixed disposal of overburden in voids of Singrauli Coalfield

The mining industry can be considered the backbone of the Indian economy as well as facilitating the power that drives most of the other industries in the company. The overburden and waste rocks produced during coal mining are major concerns in regard to the amount of land that is required for their disposal, as well as the stability of dumps for these materials, which are of increasing height. Land reclamation issues are also a concern. In this work the adverse impacts caused by the dumping of overburden on land and acidic mine water on water bodies is discussed. Remote sensing tools were used along with the laboratory experimentation to assess the various impacts. This study also shows that silt released from waste dumps, can affected the angle of repose of the overburden dump slope. The angle of repose of the overburden materials varies with particle size composition. Thus, use of in‐pit crushers in large opencast mining operations can effectively reduce the area locked under the waste dumps. The acid neutralization potential of fly ash and overburden for the treatment of acid water was tested in the laboratory by using fly ash and waste rock materials on acidic coalfield water. The results are encouraging, and fly ash may prove to be a good acid neutralizer when used in conjunction of coal overburden material.     

粉煤灰改性吸附材料的研究

本文阐述了粉煤灰的主要化学成份、结构、物理性质，指出粉煤灰改性的物质基础，并结合笔者的研究情况，分析了改性粉煤灰处理废水和废气的机理，介绍了其在处理废水和废气的研究与应用情况，提出了应用改性粉煤灰处理废水和废气中存在的问题及今后研究的重点。     

平顶山市自然资源系统分析与可持续利用研究

从对土地类型与利用、气候要素组合、水资源条件、生物多样性和矿产价值等方面对平顶山市自然资源进行了系统分析和评价，提出了依靠科学技术，转变经济增长方式，开发替代性资源，发展“非煤”产业，建立节约型、生态型资源利用模式，构筑自然资源可持续利用的保障体系与生态安全体系，实现该市自然资源可持续利用的有效途径。