煤矸石山周围地下水污染状况   总被引：3，自引：0，他引：3  

王心义  杨建  郭慧霞 《吉林大学学报(地球科学版)》2007,37(2):326-330

以焦作市演马矿煤矸石山为对象,采集该处新鲜和风化煤矸石以及附近地下水样品,检测其中Cl^-、SO^2-₄、苯并(a)芘、Mn等22种污染物的含量,并采用超标倍数法和实测浓度法对地下水受污染状况进行分析研究。地下水中污染物含量与煤矸石山距离呈负相关,且在丰水期和枯水期存在一定差异。  相似文献   

垃圾填土压缩特性的室内试验研究   总被引：3，自引：1，他引：2  

王志萍  胡敏云  夏玲涛 《岩土力学》2009,30(6):1681-1686

在调查分析了典型生活垃圾填埋场成分组成的基础上,配制了9组具有不同初始物理力学性质的垃圾土,共54个试样,进行室内常规固结试验。试样有两种尺寸,用来对比试样尺寸的影响;着重分析了初始含水量W、初始孔隙比e0及易降解有机物含量B0对垃圾填土压缩性的影响。试样的初始孔隙比变化范围为：e0 为2.5～4.6;初始含水量w的变化为50 %～100 %;易降解有机物含量B0 为10.1 %～45.1 %。分析结果表明,压缩指数Cc为0.824 2～1.234 6;修正压缩指数 为0.165 9～0.243 6,与国内外相似研究的取值基本一致。提出了考虑垃圾填土初始物理参数的压缩参数建议取值方法,为指导工程实践提供参考。  相似文献   

利用混凝沉淀法处理喷粉工艺中的磷化废水     

傅军 《海岸工程》2000,19(3):62-66

进行了用混凝沉淀法处理喷粉工艺中磷化废水的试验研究。结果表明,在原水中SS为90-400mg/L,COD为150-400mg/L。在水温15℃、pH为9.0-10.0、搅拌时间为3-5min、PAM投加量为5mg/L/CaCl2投加量为200mg/L的条件下,SS和COD的最大去除率可分别达到90%和75%。  相似文献   

垃圾填埋场地特征及其工程地质问题分析     

曹丽文  吴圣林  赵霞  王玲  何光强 《煤田地质与勘探》2006,34(5):56-59

以徐州某垃圾填埋场工程为例,以勘察工作成果为基础,对区域稳定性、地震效应等方面进行了探讨。重点研究和评价了水文地质条件,分析了垃圾填埋场建设所涉及的主要工程地质问题。研究结果表明:本场地的变形特性、边坡稳定性等满足填埋场使用要求,不会出现承压水突涌现象,填埋场的修建不会对地下水产生不良影响,场地作为垃圾填埋场的建筑场地是适宜的。   相似文献   

Reversed mining and reversed-reversed mining: the irrational context of geological disposal of nuclear waste     

A. J. van Loon   《Earth》2000,50(3-4):269-276

Man does not only extract material from the Earth but increasingly uses the underground for storage and disposal purposes. One of the materials that might be disposed of this way is high-level nuclear waste. The development of safe disposal procedures, the choice of suitable host rocks, and the design of underground facilities have taken much time and money, but commissions in several countries have presented reports showing that — and how — safe geological disposal will be possible in such a way that definite isolation from the biosphere is achieved. Political views have changed in the past few years, however, and there is a strong tendency now to require that the high-level waste disposed of will be retrievable. Considering the underlying arguments for isolation from the biosphere, and also considering waste policy in general, this provides an irrational context. The development of new procedures and the design of new disposal facilities that allow retrieval will take much time again. A consequence may be that the high-active, heat-generating nuclear waste will be stored temporarily for a much longer time than objectively desirable. The delay in disposal and the counterproductive requirement of retrievability are partly due to the fact that earth-science organisations have failed to communicate in the way they should, possibly fearing public (and financial) reactions if taking a position that is (was?) considered as politically incorrect. Such an attitude should not be maintained in modern society, which has the right to be informed reliably by the scientific community.  相似文献   

废物地质处置中的水文地质问题分析   总被引：2，自引：0，他引：2       下载免费PDF全文

郭永龙  桂承新 《地球科学》2000,25(5):518-521

废物地质处置中废液的泄漏或固体废物渗滤液对地下水可能产生的污染影响是选址中一个必须考虑且不可忽视的基本水文地质问题.分析了地下水污染中的几个基本概念问题, 并就废物地质处置选址和设计中如何注意这些问题提出了相应的解决办法及对策.   相似文献   

工程地质方法在高放废物处置场建设中的应用     

陈崧  阎长虹  何长鸣 《水文地质工程地质》2000,27(3):30-32,45

本文介绍了高放废物处置场的基本结构并着重阐述了工程地质方法在高放废物处置场建设中的应用,应用主要包括以下几个方面(1)处置场场区围岩稳定性评价;(2)处置场场区岩体力学性质参数的测量;(3)建立处置场场区工程地质模型。  相似文献   

冶炼废渣开发利用前景探讨     

张登和 《江苏地质》2000,24(1)

阐述了某钢铁厂冶炼炉渣堆放场中渣的放射性元素含量及照射量的规律性 ;铁合金厂钒铁冶炼贫渣的物理化学性质和矿物组成特性 ;并对它们作为水泥、肥料生产和筑路工程中的原材料及有用组分回收等方面的开发利用进行了探讨。  相似文献   

The influence of hazardous liquid waste on the permeability of earthen liners   总被引：1，自引：0，他引：1  

K. Kayabalı  M. Mollamahmutoğlu 《Environmental Geology》2000,39(3-4):201-210

 Permeability and its susceptibility to changes with time or exposure to chemicals are major factors in selection of earthen liners for use in hazardous liquid-waste containment systems. Earthen liners often consist of mixtures including both granular soil and fine matrix. Six different solid mixtures were tested to investigate the influence of hazardous liquid waste on their permeability. The granular part of the mixtures included sand and crushed natural zeolite, whereas the matrix was composed of bentonite and microcement. Highly acidic solutions, bases, leather industry leachate and municipal waste leachate were used as permeants. Of the mixtures tested, only two mixtures performed well against the attack of chemicals. The testing method was the falling head system with the compaction mold permeameter. The period of experiments varied from two to eight weeks. Received: 24 September 1998 · Accepted: 5 January 1999  相似文献   

高放废物处置北山预选区地表岩体结构与岩体质量相关性及其应用研究     

宗自华  陈亮  陈强  魏云杰  王锡勇  王驹 《岩土力学》2013,34(Z1):279-284

岩体工程质量是影响高放废物地质处置（HLW）工程长期稳定性和安全性的关键因素,也是处置库场址比选的重要依据。在地表岩体节理调查统计的基础上,采用RMR(relative metabolic rate)分级方案,探讨北山高放废物处置预选区内以花岗岩为主体围岩的岩体质量与岩体结构的对应特征,建立结构面间距D与RMR岩体质量总评分值之间的定量关系,对北山预选区芨芨槽地表岩体质量分布进行研究。研究结果表明,RMR与D值的点群分布具有扇形发散的正相关特征,随D值的增大,RMR亦呈增长趋势,但低级序岩体结构与岩体质量比高级序岩体表现出更好的对应关系。研究认为,选用RMR与D的点群中心线对应的线性方程评价花岗岩候选区的岩体质量可达到快速评价岩体质量、查明各级岩体空间分布特征的目的,同时也便于对不同候选场区进行大范围岩体质量对比。分析结果显示,北山芨芨槽预选地段BS16钻孔周边3 km2范围内主要以Ⅰ、Ⅱ级岩体为主,岩体质量总体较好且分布相对较为均匀。  相似文献