共查询到20条相似文献,搜索用时 187 毫秒
1.
2.
3.
4.
5.
《Planning》2014,(5)
本文通过对四川会理县某废弃铁矿山的分析,让大家对废弃矿山环境影响的重视,如露天开采边坡稳定性、矿渣的无序堆放、岩体崩塌、滑坡、矿渣坡面泥石流、松散矿渣对大气环境的影响、对地表水及地下水的污染、对植被及地貌景观的影响等,所以对废弃矿山的治理不容忽视。 相似文献
6.
《Planning》2019,(1)
文章通过分析陕西省临渭区种植业化肥、农药、农膜和农作物秸秆污染的现状,有针对性地提出了健康生态发展的防控对策,以期为临渭区种植业健康、有序发展提供参考。 相似文献
7.
8.
《Planning》2017,(24)
<正>科学技术的发展,带动了农业机械化、现代化发展,农业生产化肥、农药、农膜以及激素的使用,在提高农业生产量的同时,也出现了新的环保问题。化肥、农药残留物和积淀物对土壤和水源造成了严重的污染,农膜、激素的使用严重破坏了耕地质量以及农业生态平衡,类似的环保问题还有很多,阻碍了农业的可持续发展,必须采取科学、合理的措施进行治理,才能保证农业生产质量,推动经济健康发展。1农业环保面临的新问题分析 相似文献
9.
废弃混凝土再生利用探讨 总被引:2,自引:0,他引:2
随着我国建筑业迅猛发展,我国每年产生的废弃混凝土的量巨大并呈逐年上升的趋势。该文探讨了废弃混凝土再生利用的途径,设计了适应我国目前发展现状的再生骨料的生产工艺流程,并从环境效益和社会效益方面对废弃混凝土再生利用以及其再生利用产生的经济效益方面进行了分析,文章的分析表明废弃混凝土的再生利用一方面可以减轻废弃混凝土对环境的污染,节省其作为垃圾排放的清运和处理费用,另一方面可以充分利用废弃混凝土这种可再生资源,保护自然资源和人类的生存环境,有利于实施可持续发展战略。本文的研究表明废弃混凝土的再生利用具有很好的环保效益、社会效益和经济效益。 相似文献
10.
《Planning》2019,(6)
农膜的使用和推广给农业增产增收带来经济效益的同时,“白色污染”等负面问题也日趋显现,而且负面影响不可忽视和低估。文章阐述了山东省邹城市近年来农膜的使用现状及对农业生产的影响,分析了农膜使用存在的问题,并从农膜回收、利用和管理等方面提出了对策建议。 相似文献
11.
12.
经济的高速发展同时也带来了环境损害,重金属污染特别镉元素污染环境中毒性最强的元素之一,由于镉不易迁移、不可逆转、难以修复,是目前土壤环境研究的难点。河南省作为中国的农业大省,其产地土壤的重金属安全关乎全省和全国人民的粮食安全。本文利用现状调查和化验分析等手段,查明了全省农用地土壤Cd元素含量均高于河南省A层土壤重金属含量背景值,表层土壤Cd污染较为严重,但均不超过全国农田土壤风险筛选值,基本处于安全水平;通过分析农业土壤镉污染的主要途径,提出减少土壤中镉污染的建议,为重金属镉污染土壤的修复与治理技术研究提供依据。 相似文献
13.
14.
15.
在石油钻井过程中会产生大量含重金属废弃钻井泥浆,对环境污染很大,需进行无害化处理。本研究采用水泥和工业废渣固化废弃钻井泥浆,经过不同次数的冻融循环后,测试固化土强度、固化土中Pb2+离子和Cr6+离子的浸出量以及固化土中的孔隙变化规律,探讨工业废渣固化废弃钻井泥浆的抗冻性能。结果表明:固化土试件的强度均随着冻融循环次数的增加而下降;固化剂组分中工业废渣的掺量增加,特别是磷石膏掺量增加能够有效的减弱固化土在冻融循环作用下的强度损失。工业废渣能够有效的稳定固化土中的Pb2+离子和Cr6+离子,浸出量比水泥固化土降低70%~80%。对固化土孔隙的测试结果证实由工业废渣固化的固化土试件的密实度大于仅由水泥固化的试件。 相似文献
16.
Presently in India, about 960 million tonnes of solid waste is being generated annually as by-products during industrial, mining, municipal, agricultural and other processes. Of this ∼350 million tonnes are organic wastes from agricultural sources; ∼290 million tonnes are inorganic waste of industrial and mining sectors and ∼4.5 million tonnes are hazardous in nature. Advances in solid waste management resulted in alternative construction materials as a substitute to traditional materials like bricks, blocks, tiles, aggregates, ceramics, cement, lime, soil, timber and paint. To safeguard the environment, efforts are being made for recycling different wastes and utilise them in value added applications. In this paper, present status on generation and utilization of both non-hazardous and hazardous solid wastes in India, their recycling potentials and environmental implication are reported and discussed in details. 相似文献
17.
土壤污染现状分析及治理对策研究 总被引:4,自引:0,他引:4
结合国内外的研究结果,对我国城市与农村两种土壤污染现状及其污染原因进行了分析比较,并总结出城市、农业土壤污染的治理对策,从而为土壤污染检测奠定了理论基础。 相似文献
18.
H. Doygun 《The International journal of environmental studies》2013,70(4):391-401
Rapid urbanization without effective management results in natural sources and a substantial part of the urban population being placed at risk from man‐made environmental problems, which become increasingly serious. This paper examines the environmental problems of Adana, the sixth largest and most developed city in Turkey. Adana faced huge problems of water, soil and noise pollution, solid and liquid waste elimination and loss of fertile agricultural areas. Rapid economic development – industrialization, population growth and unplanned urbanization – were determined to be the main causes of these environmental problems. Some recommendations are also made for mitigating and managing these problems in the sustainable urban development perspective. 相似文献
19.
S.P. Raut R.V. Ralegaonkar S.A. Mandavgane 《Construction and Building Materials》2011,25(10):4037-4042
Accumulation of unmanaged industrial or agricultural solid waste especially in developing countries has resulted in an increased environmental concern. Recycling of such wastes as a sustainable construction material appears to be viable solution not only to pollution problem but also an economical option to design of green buildings. In view of utilization of industrial and agricultural waste material for developing sustainable construction material, the present paper reviews various waste materials in different compositions that were added to the raw material at different levels to develop waste-create bricks (WCB). Various physico-mechanical and thermal properties of the bricks incorporating different waste materials are reviewed and recommendations are suggested as the outcome of the study. The reviewed approach for the design and development of WCB using industrial solid waste is useful to provide a potential sustainable solution. 相似文献
20.
Resistivity surveys near a waste-disposal site in the Qasr Tuba area of central Jordan 总被引:1,自引:0,他引:1
Awni T. Batayneh Majdi O. Barjous 《Bulletin of Engineering Geology and the Environment》2005,64(3):285-291
Direct current (DC) Schlumberger resistivity sounding and dipole-dipole resistivity profiling experiments were conducted at
the border of an 2.2 long×1 km wide open waste disposal site in central Jordan. The site is on an approximately 20 m thick
limestone, chert and chalk rock sequence and is surrounded by a series of hills. Lying upstream of an urban area, agricultural
land and numerous groundwater wells, any contamination spreading from the waste disposal site could have a serious effect
on the people and the environment. In this study, the subsurface resistivity distribution was mapped and compared with the
data obtained from boreholes and aerial photographs. DC resistivity methods were found to be a fast and inexpensive data collection
tool. The results obtained will be of use for engineering preparations and the operation of the site, as well as for monitoring
any future pollution.
相似文献