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一九八○年,浙江省在杭州、宁波、绍兴等三市进行了排污收费的试点工作.一九八一年三月,省人大常委会第七次会议通过并颁布了《浙江省排污收费和罚款暂行规定》.到一九八一年底止,已有二十个市、县对七百二十五家企业征收了排污费.两年来,共征收排污费二千二百二十八万元,占缴费单位利润的百分之二点三六. 自颁布《规定》以来,各级人民政府和工业、财 相似文献
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饮食娱乐业废水排放及排污收费系数的讨论 总被引:2,自引:0,他引:2
以南京市饮食娱乐服务业的监测数据为基础,运用数理统计学的分层抽样法确定废水排放系数,提出用废水排放系数征收该行业的排污费的办法。 相似文献
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一浙江省征收排污费工作从1980年开始,到1989年底,全省11个市(地)、71个县(市)全部开展了这项工作。十年来,工作由点及面,从广度到深度,不断发展提高。征收对象由全民集体工矿企业到机关、团体事业单位;征收范围由城市的大、小企业到乡镇企业和个体经营户;征收项目由废水到废气、废渣、噪声和放射性废物;征收内容由超标收费到排污水费。征收金额逐年上升,收费户数逐年增加。1989年征收金额比1980年增长近5倍,收费户数增长60多倍。 相似文献
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《环境污染与防治》2014,(12)
正近日从接近财政部人士处获悉,环境税改革的时间表渐已明晰,明年环境税极有可能完成立法并出台。环境税征收采用从量计征方式,计税依据为应税污染物排放量。税率不低于现行排污费的收费标准。税收征管有望采取环保部门配合税务机关征收的模式,即环保认定、税务征收的征管模式。"十二五"规划纲要明确提出:"选择防止任务繁重、技术标准成熟的税目开征环境保护税,逐步扩大征收范围。"财政部财科所副所长苏明告诉《经济参考报》记者:"明年是‘十二五’最后一年,我认为明年中央的决策应该到位,明年环境税应该出台。据我了解的情况,一年前三部门已经把方案报给国务院,现在正在立法,立法过程中有很多难点需要突破,但是坦率讲,我比较有信心,明年环境税变成法律出台的可能性都是有的。"苏明表示,我们现在对水污染排放、垃圾等通过收费的手段进行治理,环境税开征主要就是要进行"费改税"。苏明 相似文献
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2018年开始实行的环境保护税政策旨在保护和改善环境,减少污染物排放,而税基核定的准确性直接关系着环境保护税的政策效果。通过比较以在线监测数据核算的和以物料衡算核算的J市A钢铁厂SO_2排污费,探索环境保护税税基核定的方法。研究发现:2014年,J市A钢铁厂监测得到的SO_2排放量为364.91t,被征收的排污费为43.79万元;根据物料衡算得到的SO_2排放量为4 626.00t,其应缴排污费为584.46万元。排污申报数据存疑的原因是高炉虚设排污口。为确保环境保护税税基核定的准确性,设计了一种同时考虑监测和物料衡算的环境保护税税基核算方案。 相似文献
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Alfred Eisner Jacob Tadmor 《Journal of the Air & Waste Management Association (1995)》2013,63(4):400-401
A number of key projects in the Environmental Protection Agency (EPA) particulate R&;D program having applicability to industry are presented. For electrostatic precipitators (ESP) there is presented the result of work on large diameter discharge electrodes which provide a decrease in penetration of up to a factor of 4 when compared to conventional small diameter electrodes. Also discussed is the multistage ESP which provides a collection efficiency that would require a collecting plate area 4 or 5 times larger with conventional ESP technology. The E-SOX technology makes use of the multistage concept to free up space in the ESP for SO2 removals of up to 90%. Electrostatically augmented fabric filtration provides a reduction in pressure drop of about 5 0% as compared to conventional fabric filtration. Wind tunnel modeling of windbreaks for material storage piles indicates a potential for providing engineering design data that would allow significant emission reduction caused by wind erosion 相似文献
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《国际环境与污染杂志》2011,10(2):304-314
This paper investigates some of the reflectivity characteristics that clouds (when modelled as solid bodies) must exhibit to be compatible with observations that the reflecting surface of a cloud (i) appears almost equally bright across its face, (ii) is brightest when the cloud is opposite to the Sun but decreases in brightness as the cloud moves to other positions and (iii) increases in brightness with increasing optical thickness of the cloud in the observer's line of sight. These observations, respectively, are shown to imply that the peak value of the bidirectional total reflectivity from a cloud surface (i) increases in inverse proportion to the cosine of the angle between the Sun and the normal to the cloud surface, as the incident angle increases, (ii) appears to be directed back in the direction of the incident radiation, and (iii) increases as optical thickness of the cloud in the observer's line of sight increases. The results could have application in many fields (e.g. modelling diffuse radiance distributions for cloudy skies). 相似文献
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在实施ISO/IEC17025:1999标准《检测和校准实验室能力的通用要求》过程中,通过实验室质量管理体系内部审核的实践与系统分析,识别出内部审核实施阶段的关键环节,提出召开首次会议、收集审核证据、确定审核发现和召开末次会议的技术方法,对提高内部审核的质量和有效性、获得可靠的审核结论具有重要意义。 相似文献
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Árpád Ambrus 《Journal of environmental science and health. Part. B》2013,48(3):435-442
Abstract A computer model was used to take random samples from primary sample populations obtained from field trials to simulate the uncertainty of sampling for residue analysis of plant commodities and soil. The results indicate about 40%, 30% and 20% relative uncertainty when random samples of size 5, 10 and 25 are taken respectively, from a single lot. Therefore the sample size should be the same for establishing and enforcing legal limits. 相似文献
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结合扬中生态环境的基本情况和存在的不足,进行了具体分析,对扬中未来生态建设的发展方向提出了建议及实施措施。 相似文献
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Janusz A. Pudykiewicz Anna S. Koziol 《Atmospheric environment (Oxford, England : 1994)》1998,32(24):5541
The most common technique used for numerical simulations of tracer mixing is that of the numerical solution of the advection–diffusion equation with the unresolved fluxes parameterized using the similarity theory. Despite correct predictions of the overall directions of transport, models based on a numerical solution of the advection–diffusion equation lack sufficient accuracy to correctly reproduce the coupling of mixing with small scale processes which are sensitive to the microstructure of the tracer distribution. The objective of this paper is to revisit the basic formalism employed in numerical models used to investigate atmospheric tracers. The main mathematical method proposed here is the theory of kinematics of mixing which could be applied effectively for simulations of atmospheric transport processes. At the beginning of the paper, we introduce simple mathematical transformations in order to demonstrate how complex topological structures are created by mixing processes. These idealistic flow systems are essential to explain transport properties of much more complex three-dimensional geophysical flows. An example of the application of the kinematics of mixing to the analysis of tracer transport on a planetary scale is presented in the following sections. The complex filamentary structures simulated in the numerical experiment are evaluated using some commonly applied statistical measures in order to compare the results with the data published in the literature. The results of the experiment are also analysed with the help of simple conceptual models of fluid filaments. The microstructure of the tracer distribution introduced in the paper is essential to increase our understanding of atmospheric transport and to develop more realistic parameterizations of small-scale mixing. The presented results could also be used to improve calculations of the coupling between microphysical processes and tracer mixing. 相似文献
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介绍了电解法生产次氯酸钠的原理 ,并在原有生产工艺的基础上进行了重新设计和对设备的重新选择、改造 ,得出了各个工艺参数的最佳值 ,生产出高品质的次氯酸钠 相似文献
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Morten E. Simonsen Martin B. S?rensen Erik G. S?gaard 《Environmental science and pollution research international》2012,19(9):3772-3781
Objective
This work aims to investigate the correlation between the photocatalytic activity determined by methylene blue bleaching (DIN 52980), stearic acid degradation, and degradation of acetone in gas phase.Method
The photocatalytic TiO2 coatings included in this investigation ranged from thin commercially available coatings (ActivTM and BioCleanTM) and ready to use suspensions (Nano-X PK1245) to lab-produced PVD and sol?Cgel coatings. XRD analysis of the photocatalytic coatings showed that all the coatings consisted of nanocrystalline anatase, although the thickness and porosity varied considerably.Results
The study showed that the reproducibility of the activity measurements was good. However, more importantly, the investigation showed that there is a good correlation between the activities determined by the different methods even though the characteristics of the photocatalytic coatings and the organic probe molecules varied considerably.Conclusion
The overall findings of this work suggest that there is a good correlation between the investigated methods. These results are promising for the future work concerning standardization of methods for determination of the activity of photocatalytic films. 相似文献20.
India has a very extensive coastline of about 7515 km, rich in diverse living resources. These resources continue to deteriorate with rampant harvesting or are altered for other uses such as aquaculture and fisheries. The present paper deals with degrading coastal habitats in northeastern India, and projects the intensity of the stress arising from the collection of tiger prawn seeds (Penaeus monodon) for aquacultural farms and molluskan shells for poultry feed and edible lime. Indiscriminate exploitation of these resources leads to a heavy reduction of the species concerned and other associated marine communities. The magnitude of such destruction has been quantified. The impacts of biodiversity loss and their after-effects on the ecobalance of this coastal system have become a matter of great concern to ecologists to maintain security and sustainability. The authors propose a public awareness program on themes relating to the importance of biodiversity for human livelihoods. 相似文献