大同GN化肥厂氨氮废水对白马城水源地的影响     

徐世柱  宋建民 《山西地质》1993,8(2):211-216

  相似文献   

某冶炼厂附近农田镉污染调查与对策   总被引：5，自引：2，他引：3  

闭向阳  马振东 《地质科技情报》2003,22(2):87-90

对遭受某铜矿冶炼厂镉污染的湖北省某镇约30km^2的农田土壤进行了调查,对土壤耕作层与亚耕层以及污染源(废气、废水和炉渣)中全量Cd和有效态Cd含量的系统测定结果表明：未受Cd污染、受轻度污染及受中度污染的土壤面积分别占3．6％,82．1％,14．3％;土壤中全量Cd及有效态Cd含量的分布规律均表现为西灌区＞东灌区＞灌间区;土壤耕作层与亚耕层中全量Cd含量的差异不大,而有效态Cd则主要富集于土壤耕作层中;受土壤pH值的影响,Cd在污染区土壤中的活化率低于远离冶炼厂未受污染的农田对照区。该镇农田的Cd污染主要来源于某铜矿冶炼厂的废气和废水,而炉渣的污染相对较小。运用生态方法治理该镇农田的Cd污染具有一定的可行性和适用性,值得研究利用。  相似文献   

乌苏地区啤酒销售特种气象预报服务指数研究     

高婧  井立军  井立红 《沙漠与绿洲气象(新疆气象)》2006,29(4):24-26

从影响啤酒销售的因素入手,分析啤酒销量的月季分布特点及气象因子与啤酒销量的关系,进而建立适合本地区的啤酒销售特种气象服务指数熏建立啤酒热销季节的销量预测方程,使生产销售企业掌握主动权熏进而达到“以销定产”的良好效果。  相似文献   

Distribution of uranium and thorium in Irtysh River and the upriver wastewater from a rare metal mine impact on it     

Shehong LI Baoshan ZHENG Jianming ZHU Xiaoying YU 《中国地球化学学报》2006,25(B08):43-44

Uranium and Th are important radioactive elements. Most studies were focused on their environmental impact from uranium deposits and mining sites. But other sorts of mines such as rare metals mines are associated highly with uranium and thorium, too. In China, the Irtysh River is the only river that runs into the Arctic Ocean. The famous Koktokay rare metal pegmatite deposit is located in the headwater region of this river and has been exploited for several decades. The waste ore piled along the riverside as long as several kilometers. The wastewater flom the concentrating plant is discharged into the river directly. In addition, uranium and thorium can be leached from the waste ore into the river in the weathering process. So it is necessary to study the uranium and thorium distribution in the branch and trunk streams of the Irtysh River and the wastewater from the mining site impact on it. In this study, the contents of uranium and thorium in water samples from the Irtysh River and rare metal mine wastewater have been detected directly with ICP-MS. Uranium and thorium distribution and geochemical behaviors in the Irtysh River basin have been studied. The environmental uranium and thorium pollution status in the Irtysh River and wastewater from a rare metal mine impact on it have also been evaluated. The study shows that uranium and thorium contents in wastewater from a rare metal mine are as high as 78.311 μg/L and 0.627 μg/L, respectively, so we should also pay attention to the radioactive pollution from the rare metal mine. The average contents of U and Th in the branch streams of the Irtysh River are 0.572 μg/L and 0.015 μg/L, respectively. At the mean time, in the trunk of the Irtysh River, average thorium content is 0.019 μg/L while U is up to 2.234 μg/L, much higher than the average content （0.0309 μg/L） of the world rivers. From upstream to downstream in the trunk of the Irtysh River, thorium content declines gradually due to dilution by other branches and deposition itself.  相似文献   

Effect of Zob-Ahan effluent water on ground water quality     

Hamid Reza Rahmani 《中国地球化学学报》2006,25(B08):110-110

Even though, application of industrial effluent water may alleviate the irrigation water shortage in dry regions such as Iran, but uncontrolled discharge into environment and agricultural land may cause unirreversible harmful damage to environments. Therefore, application of industrial effluent water should consider the environmental consequences such as soil, ground water and food contamination. In this study the effect application of Zob-Ahan effluent water for irrigation water and seepage from evaporation ponds on the chemical composition of surrounding well-water were seasonally investigated from April to March in 2003. The water from the selected well was sampled and analyzed for pH, EC, nitrate, hardness, TSS, TDS, and cations including Na^＋, Ca^2＋, Mg^2＋, anions including SO4^2-, CO3^2-, HCO3^-, Cl^-, and heavy metals including Pb, Cd, Cu, Fe, Cr, Mn, Co, and Zn . The results were compared with standard levels for ground water resources, irrigation water, and direct human consumption. The result shows that the ground water in the vicinity of effluent water application fields and evaporation ponds is contaminated and the concentrations of NO3, Cl and Fe are higher than standard permissible levels for ground water resources. For irrigation or discharge into absorption well the heavy metal concentrations of Cu, Cr, Co, and Fe are limiting.  相似文献   

酸性矿山废水处理技术及其进展   总被引：2，自引：0，他引：2  

向武 《地质灾害与环境保护》1998,9(2):38-40

论述酸性矿山废水（ＡＭＤ）的处理方法及几种较新的ＡＭＤ处理技术。阐明酸性矿山废水的危害及传统的碱中和法和不足,指责发展新型ＡＭＤ处理技术是解决酸性矿山废水对环境危害的重要环节。  相似文献   

原子吸收分光光度法测定工业废水样品中的总铬   总被引：1，自引：0，他引：1  

余岚  张映宿 《辽宁地质》1998,(2):154-158

原子吸收分光光度计测定工业废水中的总铬,通过标准曲线的线性及方法的精密度和准确度验证表明,该方法简单,快速,准确,方法检出限为Ｃｒ：０．０３ｍｇ／Ｌ,可以满足工业废水样品中总铬的监测需要。  相似文献   

纸浆工业废水净化过程的物理—化学模拟     

Л.  ГА 马腾 《地质科学译丛》1998,15(4):45-48

提出一种从纸浆工业废水中提取重金属的前景的方法：矿物形态的碱性人造地球化学垒地。进行一系列以碳酸盐岩和褐煤灰为地球化学对垒、用工业废水人进行渗漏的室内试验。在此基础上建立了元素在地球化学垒中沉淀过程的物理－化学模型。该研究途径不仅可以预测经专门处理过的水的组成,而且可以从热力学的角度优化生产过程。  相似文献   

采矿活动对生态环境的污染及治理   总被引：5，自引：0，他引：5  

郭真 《世界地质》1996,15(4):69-72

通过对国内、国外几个矿区的实例介绍，对历史上采矿活动中对生态环境的污染作了简要的叙述。表明采矿活动对生态环境的污染包括水系、岸边植物、水中微生物、鱼类以及地下水、农业、大气、土壤等，甚至直接危险人体健康，还叙述了采矿污染的原因并简要介绍了几种对采矿污染的治理方法。  相似文献   

酸性矿井废水的防治方法     

Rob.  JDF 古月 《国外煤田地质》1996,(2):35-40

  相似文献