Mercury pollution in the Chongqing part of the Three Gorges Reservoir area and its remediation and prevention

Mercury pollution in the Three Gorges Reservoir area of P. R. China merits special attention. We investigated into the current situation in the Chongqing part of the Reservoir area, identified the pollution sources and proposed some suggestions for the remediation and prevention of mercury pollution in this area. Atmospheric mercury in Chongqing was mainly from coal burning and releases of mercury-containing products such as various types of lights and fever thermometers. Urban drainage in Chongqing and Changshou, and runoffs from the high mercury background area in the lower reaches of the Wujiang River contributed most of the mercury in the water of the Yangtze River. A majority of the blame should be laid on mercury and gold mining in the Wujiang valley. We suggested foresting sloping lands to relieve soil erosion and prevent mercury-bearing soil from running into rivers, educational activities to discourage use of mercury-containing products and improved infrastructure to collect mercury-containing wastes for reducing mercury releases, more facilities for treating wastewater and solid waste to accommodate increased requirements of discharge, and growing selected perennial plants in mercury-contaminated land to absorb the mercury in soil. We also suggested concerted operation of a dedicated water-quality monitoring system, reinforced legislation and an effective administrative mechanism to ensure lasting efforts are invested in curbing mercury releases and restoring mercury contaminated land and water in the Reservoir area.     

煤炭行业2007年职工教育统计分析报告

对27个大中型煤炭企业调查统计显示,职工教育培训工作有了新发展,煤炭行业职工队伍文化结构、职称结构、技能等级结构有所改善,但仍低于全国平均水平。     

煤矿瓦斯和煤尘的监测与控制数学建模建立研究

针对2006年全国大学生数学建模竞赛题“煤矿瓦斯和煤尘的监测与控制”中的三个问题,分别建立了三个模型：第一,模型一判别出煤矿是高瓦斯矿井。第二,模型二通过曲线拟合方法,建立了概率模型,求出了煤矿不安全程度。第三,建立了目标规划模型及其改进模型,求出了矿井在最大安全度下所需的最佳总通风量。     

煤炭资源型城市发展对策研究

在对2001年我国25个煤炭资源型城市发展水平分析的基础上,将煤炭资源型城市分类,并根据各类煤炭资源型城市自身的水平和区位特点,提出进一步提高煤炭资源型城市发展水平的对策和建议。     

探索科技成果转化新模式——以中国科学院典型煤炭技术产业化为例

煤炭的清洁高效利用对保障我国能源安全和保护生态环境具有重要意义。中国科学院的煤制油、煤制烯烃和煤制乙二醇3项煤炭清洁高效利用技术均达到了世界先进水平。这3项技术在科技成果转化过程中分别采取了"一条龙"模式、"联合开发体"模式和"金三角"模式整合社会资源,跨越了技术成果从实验室到产业化的鸿沟,成为我国能源技术领域的创新典范。文章回顾了3项技术的产业化发展历程和技术转移转化过程中遇到的各种情况,分析了存在的问题和挑战,并对今后技术转移转化的模式提出了建议。     

21世纪初10年中国煤炭企业教育管理模式研究(节录)

企业教育管理模式可归纳为独立教育集团(公司)模式、集团公司下属教育机构按企业化管理模式、企业集团下属教育机构按事业化管理模式(含准董事会模式、人劳教分权管理模式和人劳教统筹管理模式)、只设管理机构而无办学实体模式。     

日本枪刺下的井陉煤矿

井陉煤矿是河北省重要煤矿之一，在抗战时期，被日军侵占了8年之久。日本侵占井陉煤矿后，掠夺煤炭资源，奴役煤矿工人。面对日本的侵略行为，井陉军民进行了顽强的抵抗。     

煤灰合成A型分子筛之研究

以合适煤灰为原料通过粉碎，水热合成等手段，制取分子筛，总结出合成的最佳工艺参数。     

Numerical calculation for gas and strata movement law caused by protection layer mining

According to the problem during mining coal seam with high gas and its control, the theory numerical calculation of gas and strata movement law caused by protection layer mining was studied, with the background of Snake Mountain coal mine. First of all, the basic principle of fluid (gas)-solid coupling was briefly described, and a three dimensional model was established by FLAC software. Secondly, the calculation parameters of fluid-solid coupling were obtained based on the measured data, and the numerical calculation of sublevel mining was carried out in turn. Lastly, initial stress state, gas movement law, deformation law of pore pressure and movement characteristics of rock strata were studied, respectively. The results show that the gas and pressure were greatly reduced with the advance of 4 coal seam working surface, as well as the constant increase of area of goaf. Facilitating gas and the stress were gradually penetrated and released to goaf during the whole process of mining. The gas pressure, the aggregation degree and the surrounding rock pressure of the 1 coal seam and the 3 coal seam were greatly reduced.     

新集一矿推覆体夹片下150801工作面防水煤柱留设可行性研究

新集一矿150801工作面位于阜凤下夹片断层下,8煤顶板距离上覆下夹片断层46～88m,在局部地段,采动后的导水裂隙带有可能波及下夹片断层带,导致夹片断层带水及夹片灰岩水涌入矿坑,严重危及150801工作面的安全回采。通过对夹片灰岩的分布规律、赋水性、8煤顶板岩性特征的分析以及涌水量和最大导水裂隙带高度的计算,综合评价150801工作面防水岩柱留设的可靠性。