首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
京津冀地区重点耗煤行业大气污染物排放清单研究   总被引:1,自引:0,他引:1  
本研究通过京津冀地区各行业的年度煤炭消费量确定火电行业、钢铁行业和焦化行业为重点耗煤行业,以在线监测数据、污染源调查(现场调研、环评、验收)数据、排放因子数据为基础,自下而上建立了2013年京津冀地区重点耗煤行业大气污染物排放清单,分析研究了SO_2、NO_x和PM_(10)的排放量与污染贡献分布情况,掌握了京津冀地区重点耗煤行业大气污染物排放现状,为大气污染物减排提供数据基础。研究表明,2013年京津冀火电、钢铁焦化行业共排放SO_2 72.35万t、NO_x 131.99万t、PM_(10) 30.36万t。  相似文献   

2.
This paper presents a review of energy use in 22 selected countries of Asia and estimates the anthropogenic emission of sulphur dioxide (SO2) for the selected countries, both at national and disaggregated sub-country regional levels. The paper also makes a comparative assessment of the Asian countries in terms of SO2emission intensity (i.e. emission per GDP), emission per capita and emission density (i.e. emission per unit area). Total SO2emission in the region was estimated to be about 38 million tons in 1990. Five countries, China, India, South Korea, Japan and Thailand, accounted for over 91% of the regional SO2emission. Coal use had the dominant share (81%) of the total emission from the region. Among the economic sectors, industry contributed the largest share (49%) to the total emissions of the selected countries as a whole, followed by the power sector (30%). These findings suggest the need for mitigation strategies focussed on the industry and power sectors of the major emitting countries in Asia.  相似文献   

3.
大气污染物最大落地浓度计算方法的比较   总被引:1,自引:0,他引:1  
大气环境影响评价工作中,采用有风点源扩散模式定量预测大气污染物的最大落地浓度,通常有轴线法、常数法和非常数法这三种计算方法。本文通过实例对上述三种计算方法进行比较分析,明确了各自的适用范围,其中以轴线法的应用最为全面。  相似文献   

4.
    
The word “textile” means to weave and was taken from the Latin word “texere.” Nowadays, textiles not only fulfill humankind's basic necessity for clothing, they also allow individuals to make fashion statements. As one of the oldest industries, the textile industry occupies a unique place in India. It is responsible for 14% of the total industrial manufacture in India. However, the textile industry is also considered to be one of the biggest threats to the environment. Pretreatment, dyeing, printing, and finishing operations are among the various stages of the industrial textile manufacturing process. These fabrication operations not only utilize huge quantities of power and water, they also generate considerable amounts of waste. The textile industry utilizes a number of dyes, chemicals, and other materials to impart the required qualities to the fabrics. These operations produce a significant amount of effluents. The quality of effluents is such that they cannot be put to other uses, and they can create environmental problems if they are disposed of without appropriate treatment. This review discusses different textile processing stages, pollution problems associated with these stages, and their eco‐friendly alternatives. Textile wet processing is described in detail, as it is the key process in the industry and it also generates the greatest amount of pollutants in textile processing. The environmental impact of textile effluents is discussed, as textile effluents not only impose negative effects on the quality of water and soil, they also imperil plant and animal health. In this paper, various methods for treating textile effluents are described. Discussion of physical, chemical, biological, and advanced treatment technologies of effluent treatment are included in this paper.  相似文献   

5.
作为国民经济与社会发展的支柱产业,纺织业环境污染治理关乎中国工业绿色低碳发展格局的全面建成。应用“因子分析”的改进拉开档次法、Dagum基尼系数考察我国纺织业环境污染状况与区域差异,通过联立方程回归进行纺织业环境政策的情景分析以及探究减排路径。结果表明:1998—2021年,全国层面纺织业环境污染指数略有降低;八大综合经济区纺织业环境污染指数之间的差异显著存在,但总体基尼系数呈下降趋势。全国层面上,提高环境治理投入、增强环境规制及提高外商直接投资力度均未能够有效促进纺织业污染减排,降低能源消耗的政策有效促进了纺织业污染减排,但会一定程度影响纺织经济增长,据此提出中国纺织业污染减排的一般路径;从各经济区纺织业环境污染指数均值来看,长江中游经济区最高,其余从高到低依次为东部沿海经济区、南部沿海经济区、北部沿海经济区、大西南经济区、大西北经济区及黄河中游经济区,东北经济区较低,据此提出中国纺织业污染减排的差异化路径。  相似文献   

6.
目前,我国面临的大气污染问题愈发严重,尤其在\"京津冀\"地区更为突出。而煤炭相关产业链的能源消耗结构及其污染物排放是导致此问题的重要原因之一。本研究基于2012年\"京津冀\"地区各省、市的能源平衡表,通过区域间能源调配模型,绘制了煤流和能流桑基图,厘清了\"京津冀\"地区2012年煤炭相关产业链的物质与能量走向,并运用了投入产出法系统核算了\"京津冀\"地区煤炭相关产业链的体现能与24种污染物排放量。研究结果表明:(1)\"京津冀\"地区的原煤主要依赖调运,属于净煤炭进口地区。(2)原煤的直接使用在\"京津冀\"地区的煤炭相关产业链中占有非常大比重。将体现能角度分析的结果与能量角度分析的结果对比,可以发现煤化工产业在煤炭相关产业链中的潜在能量消耗仍然具有较大的贡献。(3)焦炭是终端消费能量的主要来源,也是体现能的主要贡献源。(4)在煤炭转化能源利用效率上,\"京津冀\"地区2012年煤炭相关产业链洗选煤、煤制品加工、炼焦三个环节的效率分别为87.77%、92.46%、90.97%,稍低于中国2012年96.16%的利用效率。(5)原煤、焦炭的直接消费和炼焦过程对\"京津冀\"地区2012年煤炭相关产业链七种主要污染物的贡献率最大。为了有效减少\"京津冀\"地区煤炭相关产业链的污染物排放,需要对原煤、焦炭的直接消费和炼焦过程采取相应的减排政策和措施。本研究可以为\"京津冀\"地区煤炭相关产业链提高能源利用效率、减少体现能和污染物排放、采取改进措施提供一定的理论支持和政策建议。  相似文献   

7.
根据联合国政府间气候变化专门委员会推荐的方法,计算了秦皇岛市工业行业2005-2010年的能源消费碳排放。秦皇岛市工业效益偏低,重工业比例偏大和以煤炭为主的能源结构是碳排总量和碳排放强度的主要驱动力。改造提升传统主导产业,做强装备制造业,加快工业园区建设,完善产业链,改善能源结构等是秦皇岛市工业产业结构优化的主要途径。  相似文献   

8.
简述了生物质概念及生物质利用技术的概况,介绍了生物质(竹、木剩余物)气、炭、液、油四联产生物质能源利用产业链的发展思路,对生物质利用的市场应用及发展进行了分析预测。  相似文献   

9.
采用实地调研、资料收集等方式获得了2017年资阳市典型污染源的活动水平数据,参照城市大气污染物排放清单编制技术手册建立了基于排放因子法和物料衡算法的资阳市大气污染源排放清单,分析了主要污染物的行业排放特征和空间分布特征。结果表明,2017年资阳市SO2、NOX、CO、PM10、PM2.5、VOCs、NH3总排放量分别为3.58kt、13.91kt、94.91kt、25.51kt、8.67kt、23.84kt和46.44kt。SO2排放主要来自工业源;NOX排放主要来自移动源;CO排放主要来自工业过程及移动源;PM10和PM2.5、排放来自扬尘源和露天秸秆焚烧;VOCs主要来自溶剂使用源;NH3主要来自农业活动。资阳市主要污染物排放分布在工业点源较为集中的雁江区和安岳县,乐至县污染物排放量相对较小。  相似文献   

10.
    
The literature on the business case for Corporate Social Responsibility (CSR) has identified possible mechanisms for CSR to increase profits. Other parts of the CSR literature argue that any strategy yielding above‐average profits will be imitated by competitors and profits driven down to industry average; consequently, CSR may only be a strategy for achieving average profits. The empirical research on the relationship between CSR and profits, consisting mostly of quantitative studies, has thus far proved inconclusive and many studies are challenged on methodological grounds. This paper presents the results of interviews with senior executives of 15 of the largest textile companies on the Norwegian market. The aim of the paper is to investigate the relationship between CSR and profits while avoiding the most important methodological pitfalls of the quantitative research and acknowledging the distinction between CSR as a strategy for achieving average profits and as a strategy for achieving above‐average profits. Copyright © 2010 John Wiley & Sons, Ltd and ERP Environment.  相似文献   

11.
长沙市空气自动站周边区域大气污染物排放源清单   总被引:1,自引:0,他引:1  
以长沙市空气自动站周边3 km为研究对象,基于统计年鉴和实地调查,获得了该地区2015年储存运输源、废弃物处理源、工艺过程源、化石燃料固定燃烧源、农业源、生物质燃烧源、扬尘源、移动源8个源类的活动水平数据。以大气污染物排放源清单编制技术指南为依据,建立了2015年长沙市空气自动站周边3 km区域NH_3、NO_x、PM_(10)、PM_(2.5)、SO_2、VOCs等6项污染物的源排放清单。结果表明,2015年长沙空气自动站周边3 km内,8类大气污染源排放的NH_3、NO_x、PM_(2.5)、PM_(10)、SO_2、VOCs总量分别为53.65t、4 899.35t、1 846.09t、6 257.75t、989.49t、4 383.31t。NH_3、NO_x、PM_(2.5)、PM_(10)、SO_2、VOCs排放量最大的源分别是农业源、移动源、扬尘源、扬尘源、化石燃料固定燃烧源和移动源,贡献率分别为98.45%、84.24%、60.82%、85.90%、97.33%、49.88%。优化道路交通、减少燃煤、减少建筑工地扬尘排放可促进长沙市空气自动站周边空气质量改善。  相似文献   

12.
Voluntary environmental governance is a widely used policy approach that has been criticized for its lack of effectiveness. This raises fundamental questions about how to design processes that can advance voluntary programmes in a way that makes them more successful. In this paper, we analyse a government-initiated dialogue process to phase out hazardous chemicals through voluntary action by the Swedish textile industry. The analysis shows that information transfer primarily motivated business participation, while consumer pressure, regulatory threats and traditions of government–business cooperation played minor roles. The institutional design of the dialogue ensured close interaction within a homogeneous group, but collective actions were limited by disagreement about the problems to be addressed, prior unilateral environmental commitments by leading companies, and ambivalent engagement. This case provides valuable insights into the effect of institutional design on the actual interplay between business and government and its effects on voluntary governance.  相似文献   

13.
为了研究广元市房建施工扬尘排放特征,通过调研获取了广元市2010 ~2019年间的房建工地施工面积、抑尘措施及控制效率,按照自下而上的方法建立了房建施工扬尘排放清单,分析了2019年广元市房建施工扬尘的时空分布特征,并采用CALPUFF对广元市利州区某房建工地的排放进行了模拟.结果 表明:(1) 2010 ~2019年...  相似文献   

14.
简述了我国造纸业现状及面临的环境压力,介绍了我国清洁生产现状及发展趋势。针对造纸业"消耗高、污染大、效率低"的问题,结合实际造纸行业案例,提出了相应的清洁生产工艺和方案,以及关于大力发展造纸业清洁生产、促进节能减排的建议。  相似文献   

15.
通过研究建立了大连市机动车VOCs排放调查与测算方法,基于实地调查的活动水平信息,采用排放系数法建立了大连市机动车VOCs排放清单,总结分析了大连市机动车VOCs的排放特征。结果表明,2013年大连市机动车VOCs排放总量约为3.5万t,载客汽车占总量的62%,对机动车VOCs排放的贡献最大;排放标准中,国Ⅱ标准和国0黄标车VOCs排放分别占汽油车排放的30%和26%;时间分布上,昼间机动车VOCs排放较高,特别是在早高峰时段排放相对集中;空间分布上,VOCs排放从市中心向周边区域逐步降低。  相似文献   

16.
加拿大油气系统温室气体逃逸排放清单简述   总被引:2,自引:0,他引:2  
油气系统温室气体逃逸排放是温室气体排放清单的重要组成部分。加拿大在清单中统一考虑了油气系统可能存在的温室气体排放源,因此清单中不仅包括了温室气体的逃逸排放(泄漏、排空),还考虑了能源燃烧中的气体排放,所考虑的温室气体种类既包括甲烷,也包括二氧化碳。采用的是政府间气候变化专门委员会(IPCC)第三层次方法(Tier3),即设备清单法、操作时间法和活动水平法三种计算方法,详细地将排放源分类进行估算。该国对数据的管理、质量控制和质量评估、不确定性分析以及在如何保证数据的持续性方面的作法都值得我们学习和借鉴。  相似文献   

17.
金朝晖 《四川环境》1998,17(2):68-69
丘陵地区工业污染源的大气影响预测,由于特殊的地理环境,大气扩散模式中最大地面浓度Cm及其距排气筒的距离Xm的烟轴He需修正。  相似文献   

18.
根据收集的青岛市九大类排放源的活动水平数据,本研究采用排放因子法结合调研实测等工作建立了青岛市VOCs源排放清单,结果表明,工业企业VOCs排放占总排放的比例达到43.17%。其中,工艺过程源类中排放占比较高的行业依次为橡胶和塑料制品业、非金属矿物制品业、原油加工及石油制品制造业、化学原料和化学制品制造业、黑色金属冶炼和压延加工业等;溶剂使用源类中排放占比较高的行业为金属制品业、皮革皮毛羽毛制品和制鞋业、印刷业、铁路船舶航空等设备制造业、汽车制造业等。通过对重点行业重点企业进行入场调研采样分析,本研究发现不同行业中VOCs组成特征有差异,多数行业VOCs物种排放以卤代烃、芳香烃、烷烃等为主,纺织印染业、制鞋业等部分行业以含氧有机物排放为主。通过调研和实测对部分行业的VOCs排放因子水平做了本地化深入研究,调研统计青岛市约49%的企业安装了VOCs治理设施;在企业所安装的VOCs治理设施中吸附法占比最大,占比为26%。  相似文献   

19.
甲烷排放管控是国际石油公司推动低碳能源转型的一项重要举措,也是达成净零碳排放愿景的一个重要手段。研究发现,国内外石油公司的油气生产活动水平、甲烷排放控制水平、甲烷排放核算方法等3个方面均存在较大差异性。我国油井单井产量低,地面工程量大、工艺复杂,流程工艺中甲烷排放突出,油气系统甲烷排放水平较高,油气生产甲烷排放控制水平与国外石油公司相比尚有较大差距,与国外甲烷排放核算方法也存在较大差异性。着眼于甲烷排放管控,我国石油公司应充分衡量甲烷排放现状、生产活动水平、甲烷排放控制措施经济性和适用性等多重因素,严格控制潜在甲烷排放节点,并进一步做好甲烷排放检测、监测和数据统计工作,持续完善甲烷排放报告和核查体系。  相似文献   

20.
    
NOx emission is produced during combustion of fuels at high temperature. Excessive release of NOx causes several effects on living organisms and environment. In this work, the efforts to reduce NOx emission by developing electrochemically activated cells (EACs) for a diesel engine fuelled with diesel and biodiesel fuel are discussed. EAC technique is vital after treatment technology attempted in this work to simultaneous control of NOx, HC, and PM emissions. In this method, two types of EACs were developed. The CuO–YSZ electrolyte and CuO–YSZ electrolyte with BaO coating were developed and tested with diesel and biodiesel exhaust. Compared with diesel fuel, use of biodiesel fuel increased NOx emission by 11% and PM emission was slightly reduced with biodiesel, which was due to the presence of fuel bond oxygen content in biodiesel. The investigation has demonstrated low-temperature activation of the EACs at 250–350°C which was due to the addition of CuO to YSZ. In this work, maximum NOx reduction was achieved for CuO–YSZ cells with BaO NOx storage and the simultaneous control of HC and PM emission also was observed in this technique. NOx reduction by EAC is a vital technique and can be retrofitted with any diesel engine for emission reduction.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号