工业化进程中环保促调的实践探索——以嘉兴市秀洲区为例

以环境保护促进经济结构调整、发展方式转变(简称环保促调)是缓解工业化进程中环境经济矛盾的趋势之—.选取嘉兴市秀洲区为对象,结合该区“环保促调”模式的成功案例,阐述该区在工业化进程中,通过环保责任的倒逼机制.整治工业污染、发展清洁农业、培育新兴产业,逐步转向生态化、高新化、轻型化的发展模式,并成功首创初始排污权有偿使用制度、积极探索政产学研合作的高新技术发展机制,为其他地区提供了宝贵的经验,最后提出了排海与排河标准一体化、排污权有偿使用制度一体化等政策建议.     

生态思维──可持续发展的社会环境伦理基础

可持续发展已成为现实社会发展的主体模式，传统发展观下的社会环境伦理已不能适应社会发展需求。本文提出以生态思维作为可持续发展的社会环境伦理，并从生态思维范式的兴起入手，讨论了生态思维的特点及其作为可持续发展环境伦理基础的条件和实施的准则     

跟着时代的步伐前进

1978年,"温州地区环境保护工作办公室"正式定编成立,从此温州拉开了30年环保征程的序幕.30年来,温州市环境保护局坚决贯彻落实党委、政府及上级环保部门的政策方针,按照温州市经济社会发展的规律要求,不断拓展工作领域,加强自身建设,推动环保工作与时俱进,深入发展.     

《环境污染与防治》增刊2020年度征稿启事

<正>为更好地满足全国环保科研及管理人员在环境科研、环保技术及环境管理等方面的交流需求,并为广大环保从业人员发表学术论文提供更多机会和更大空间,本刊定于2020年4月出版增刊一期。征稿范围为:环境污染防治技术、生态环境保护、资源综合利用、清洁生产、环境规划和影响预测、环境监测与评价、环境政策法规、环境管理等方面的研究报告、综述、应用案例等;介绍最新环保技术和方法;报道国内外环保动态信息。     

环境问题成因的经济学分析及对策探讨

环境资源的产权制度缺损导致的外部性是环境问题产生的根本经济原因 ,环境问题的解决实质上是各相关利益者谈判和重复博弈的过程 ,而全球环境管理的实践也证明了环境管理越来越依赖于排污收费、排污权交易、环境税、资源合理定价与开发、拓宽环保筹资渠道和发展环保产业等经济手段的完善与应用     

生态文明建设与可持续发展——周生贤部长在2012年生态文明贵阳会议上的讲话(摘选)

建设生态文明,以把握自然规律、尊重和维护自然为前提,以人与自然、环境与经济、人与社会和谐共生为宗旨,以资源环境承载力为基础,以建立可持续的产业结构、生产方式、消费模式以及增强可持续发展能力为着眼点,加快构     

基于环境与经济发展协调度评价的生态镇建设探讨——以徐州市大沙河镇为例

随着人地关系的矛盾越来越突出,处理好经济发展与环境保护的关系,将两者高度融合,做到环境与经济的持续协调发展逐渐受到各方重视.以徐州市大沙河镇为例,在区域环境与经济发展协调度评价的基础上探索生态镇的建设模式.结果表明,2010年大沙河镇的环境综合发展指数为1.584,经济综合发展指数为1.182,环境与经济发展的协调度为0.88,处于良好协调状态.最后在评价结果的基础上分析了大沙河生态镇建设的模式.     

网络版论文摘要

农田排水沟渠对水中无机氮的去除效果研究刘焕强1黄树辉1张明华2赵爱俊1张爱娜1王学东1(1.温州医学院环境与公共卫生学院,浙江温州325035;2.美国加利福尼亚大学戴维斯分校土壤、     

区域性工业废水预测数学模式初步探讨

工业废水预测是环境预测的一个重要基础部分。当今工业废水预测大都运用静态数学模式。本文试图以山东省作为研究区域,以82年的环境统计数据为基础,提出并运用排污系数的动态数学模式,为本世纪末工业废水量和质的预测提供参考方法。一、排污系数的数学模式的提出与建立排污系数受社会、经济、科学技术诸因素影响,并随时间而变,其趋势是逐渐减小且趋     

环保催化剂在环境保护中的应用研究进展

环境问题是人类不能回避的现实问题 ,以环境保护为目的的催化化学在解决环境保护问题中起着核心作用。本文从狭义上综述了除去SO2 、NOX、CO2 及N2 O等污染物质用的环保催化剂的种类和应用研究进展以及未来环保催化剂的研究发展方向。重点介绍了环保催化剂在脱硫、脱氮及净化汽车尾气方面的应用情况     

Optimization of Height of Release of Air Pollutants

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     

Investigation of the characteristics of the reflectivity of clouds

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).     

实验室质量管理体系内部审核的实施

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。     

Estimation of uncertainty of sampling for analysis of pesticide residues

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.     

扬中生态环境建设的思考与实践

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。     

An application of the theory of kinematics of mixing to the study of tropospheric dispersion

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.     

次氯酸钠发生器的研制

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     

Comparison of methods for evaluation of activity of photocatalytic films

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 (Activ^TM and BioClean^TM) 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.     

Impact of overexploitation of shellfish: northeastern coast of India

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.