焦化厂化产区域VOCs治理改造方案

我国生态环境部门对挥发性有机物(VOCs)的治理管控严格,焦化行业是VOCs治理重点行业。介绍典型焦化厂化产区域VOCs排放现状,分析VOCs尾气成分以及目前VOCs排放治理过程中存在的问题,并针对焦化产区域各尾气排放点的特性,采用配置氮封存的单罐单控尾气控制排放措施,采用煤气负压回收工艺处理冷鼓工段、粗苯工段、油库工段密闭槽罐挥发的尾气,采用焚烧工艺处理敞口排放的尾气和密闭性较差的槽罐排放的尾气。结果显示,对化产区域有机废气进行处理后,尾气排放基本可以满足《炼焦化学工业污染物排放标准》(GB 16171—2012)的排放标准限值要求。

煤焦化化产区域尾气入焦炉焚烧技术的研究与应用

随着环保管理的日益规范化,各行各业都在重新审视环保治理。煤焦化行业生产尾气组分复杂,难以有效治理。在充分比较现有尾气治理技术基础上,文章重点介绍了煤焦化企业应如何结合自身实际条件而开展有效的尾气治理和在治理过程中如何确保使用的安全性。

焦化厂化产区域VOCs治理技术及应用分析

介绍了太钢焦化厂化产区域各工序VOCs的主要来源、产生原因及主要污染物,对比了目前主流的VOCs治理技术,分析了不同的VOCs治理技术的原理、优缺点、适用条件等。结合焦化行业治理VOCs的实践经验,太钢焦化厂对鼓冷、脱硫、硫铵工序VOCs治理采用多级洗涤+活性炭吸附+进入焦炉配风燃烧技术,对粗苯工序、油库VOCs治理采用氮封+引入负压系统技术,并对两种技术从工艺流程、治理效果等方面进行了介绍和分析。结果表明,两种组合技术均实现了现场区域无异味、无废气排放源,可回收部分产品等效果。

焦化厂化产区域VOCs治理技术及应用探究

VOCs是一种空气当中的污染物,是一种有机气体,这种污染物不仅能够对人体和环境造成直接的影响,还能够根据实际情况衍生出新的污染物。为了达到国家对于污染物排放的最新要求,要做出一系列的防护措施。本文结合了实际情况,对于产生VOCs的主要渠道进行分析。并且在对当前我国治理VOCs的技术提出了一些建议。我国有很多种治理VOCs污染物的技术,每项技术都有不同的优缺点,根据这些优缺点以及治理技术的原理开展探讨。为了减少VOCs污染物的排放,结合一些治理措施进行分析。最后从结果中探讨下一步的具体工作开展的措施。

酒钢焦化厂新化产区域VOCs综合治理技术及应用

本文对酒钢焦化厂1#2#焦炉配套化产区域VOCs来源进行了详细分析,并选择合适的综合处理方法,对化产区域VOCs气体进行了有效收集和净化处理,该综合治理技术具有工艺流程简单、操作安全、运行成本低、无二次污染等优点。

Optimized Strategy for Layout of Crop Production Areas in Hunan Province

The optimized strategy made a comprehensive consideration of resources, technology, market orientation, production scale, industry basis and layout based on the principle of crop security and farmers’ income increasing, and determined the general planning on layout and structure optimization of future crop production ar-eas, with present crop production, market outlook, future industry development, con-cluding crop production characteristics of the 4 crop regions, and proposing function orientation and highlights.

Major Function Oriented Zone: New Method of Spatial Regulation for Reshaping Regional Development Pattern in China

Newest planning methods implemented by Chinese government are promoting a coordinated regional development and shaping an orderly spatial structure by applying the regulation of territorial function. This article analyzes the problems of spatial planning and regional strategy caused by the wrongly-set primary goal of economic development; it states that the three-fold objective of competitiveness, sustainability, and welfare fairness shall be the principal for China to implement the spatial regulation in the new era; it discusses about theoretical thoughts and technology framework of conducting the ′Major Function Oriented Zone′ based on their different major functions that each region plays in urbanization and industrialization, ecological constructions, grain productions, and protection of natural and cultural heritages; it introduces the new concept of ′Major Function Oriented Zone′ that include the major functions category, the stereo regional equilibrium mode, the two-level zoning specification, and the territorial development intensity; it offers a zoning scheme that defines development-optimized and development-prioritized zones as regions with massive urbanization and industrialization, development-restricted zones as ecological constructing or grain producing regions, development-prohibited zones as natural and cultural heritage protecting regions; and finally it addresses the main obstacle for implementing ′Major Function Oriented Zone′, which is the institutional arrangement of the supreme goal of high GDP growth rate that is currently being implemented.

Impacts of land use and climate change on regional net primary productivity

Combined with recent historical climate data and two periods of land use datasets from remote sensing data, we test the net primary productivity (NPP) data sets in North Chinamodelled by the satellite data-driven Global Production Efficiency Model (GLO-PEM) for detecting thewidespread spatial and temporal characteristics of the impacts of climate and land use change onthe regional NPP. Our results show that over the past 20 years, the mean annual temperature in thestudy region has remarkably increased by more than 0.064 ℃, but over the same period, there hasbeen a 1.49 mm decrease in annual precipitation and decrease in NPP by an annual rate of 6.9 TgC.The NPP changes in the study region were greatly affected by the average temperature andprecipitation by ten-day periods as well as the seasonal temperature and precipitation in the studyregion. The correlation between seasonal NPP and seasonal precipitation and temperature is highlyconsistent with land cover spatially, and the correlation coefficient changes with the changes ofvegetation types. The analysis reveals that the related areas in land use change only take up 5.45%of the whole studied region, so the climate changes dominate the impacts on the NPP in the wholestudy region (90% of the total). However, land use plays an absolute dominative role in areas withland cover changes, accounting for 97% of the total. From 1981 to 2000, the NPP in the whole studyregion remarkably reduced due to obvious precipitation decrease and temperature rise. Between twoperiods of land use (about 10 years), the changes in climate are predicted to promote a decrease inNPP by 78 ( + -0.6) TgC, and integrated impacts of climate changes and land use to promote adecrease in NPP by 87(+-0.8) TgC.

Temporal and spatial differences and imbalance of China's urbanization development during 1950-2006

A better understanding of the regional disparity and imbalance characteristics of China's urbanization development is the important premise for constituting correct policy and strategy and promoting the healthy and sustainable development of urbanization in the 21st century. The regional differences of China's urbanization level have close relations with natural conditions of landform and climate etc.,the urbanization level reduces with the eleva-tion of topography and decrease of precipitation. According to the statistical data set of ur-banization in 1950-2006,the temporal change course of inter-provincial disparity of Chinese urbanization level since the founding of New China in 1949 was studied,and then the inter-regional and intra-regional disparities of urbanization development were analyzed by the Theil index and its nested decomposition method,to grasp the dynamic change of spatial disparities of China's urbanization level on the whole. Using the imbalance index model,the imbalance status of urban population distribution relative to total population,grain output,total agricultural output value,gross output value of industry,tertiary industrial output value as well as gross regional product was discussed,to hold the balance characteristics of urbanization development relative to the regional development conditions from the macroscopic scales.

Influence of Location of Production, Season and Genotype on Caffeine and Flavan-3-ols in Young Green Tea （Camellia sinensis） Leaves in Kenya

Although tea is grown in agro-ecological regions widely varying in environmental factors affecting yield and quality, planters usually import genetic materials across the different growing regions assuming genotypes with good quality attributes in one location maintain their status in all regions. However, tea quality has not been replicated in new production regions. Black tea quality is influenced by the green leaf quality precursors including caffeine, total polyphenols and individual flavan-3-ols which are precursors of theaflavins and thearubigins, key plain black tea quality parameters. Factors influencing levels of the precursors compounds have not been quantified for popular Kenyan tea cultivars. The influence of geographical production location and seasons on levels and ratios of the quality precursors for 10 black tea popular clones grown in three locations in Kenya under uniform agronomic inputs were monitored. Caffeine varied significantly （P _〈 0.05） with clones and location but not with season. The flavan-3-ols and their ratios all varied （P 〈 0.05） with clones and site but not with season, with significant interactions （P 〈 0.05） between locations and clones, and locations and seasons. These results explain the observed variations in plain black tea quality due to clones and location of production. Thus, farmers in different locations are unlikely to produce black tea of same quality. It is therefore necessary to evaluate new tea genotypes in intended growing areas to establish cultivars suitable for producing high quality plain black teas in the locations. Seasonal variations in plain black tea in Kenya are unlikely to vary significantly due to flavan-3-ols.

Research on the correlation between regional economic growth and culture industry of our nation

For a nation, culture is not only the promotion and enhancement to the national spirit and the realm of life, but also an essential content and indispensable support force to achieve economic development, it is the important cause and prominent of the overall strength and the main carrier and specific embodiment of a nation＇s ＂soft power＂, besides, it also represents the degree of civilization, level of development and height of this nation. Culture and cultural industry endow with the modern culture with new meaning, it requires that at the time we achieve the prosperity and development of culture, we must actively explore and operate a scientific mechanism which is most able to release the energy of the culture and play cultural efficiency, and then develop the industrial pathway of the cultural. Cultural industry is a little different from the general industry. This causes the special natm-e of the cultural industry which is different from other industries. Different water and soil raised different people, inheriting national culture and developing cultural industry can be described as the unity of the three ones.

Selection of Superior Breeding Infraspecies Gaharu of Gyrinops versteegii （Gilg） Domke

Research on selection of superior breeding infraspecies Gyrinops versteegii （Gilg） Domke aims to select an infraspecies of G. versteegii having internal factors that affect the quality and quantity of production aromatic resin or agarwood. The internal factors are variations in wood anatomy, phytochemicals and agarwood of infraspecies G. versteegii. Of five local populations taken from West Lombok Island in Indonesia, the research areas are geographically located at coordinates： 8°15′-8°40′ South Latitude and 116°00′-116°20′East Longitude. Quality and quantity of agarwood production is influenced by internal factors of eaglewood trees, such as high starch production and the size of the cells making up the larger wood tissue. Infraspecies G. versteegii that have quality and quantity production of aromatic resin （the best agarwood） is Beringin group and the highest quantity of agarwood production （agarwood formation on the whole organ） is Soyun group.

The Common Principal Component Analyses of Multi-RCMs

Based on a 10-year simulation of six Regional Climate Models(RCMs) in phase II of the Regional Climate Model Inter-Comparison Project(RMIP) for Asia,the multivariate statistical method of common principal components(CPCs) is used to analyze and compare the spatiotemporal characteristics of temperature and precipitation simulated by multi-RCMs over China,including the mean climate states and their seasonal transition,the spatial distribution of interannual variability,and the interannual variation.CPC is an effective statistical tool for analyzing the results of different models.Compared with traditional statistical methods,CPC analyses provide a more complete statistical picture for observation and simulation results.The results of CPC analyses show that the climatological means and the characteristics of seasonal transition over China can be accurately simulated by RCMs.However,large biases exist in the interannual variation in certain years or for individual models.

Research on the Development and Countermeasure of Modem Logistics Industry in Henan Province under the Background of＂Intemet＋＂

In the context of＂lnternet ＋＂, the development of e-commerce has promoted the development of modern logistics industry to the integration, multi-function nationalization, information nationalization, globalization and greening. Modern logistics is a new industry in the service industry, which not only promotes the circulation of goods, flourishes the regional market, improves the consumption of the residents, and promotes the regional development and economic growth. This paper explores the new ideas of building modern logistics industry in Henan province by analyzing the logistics market in Henan province and the development of modern logistics industry.

Risk Assessment of Carbon Sequestration for Terrestrial Ecosystems in China

Climate change will alter the capacity of carbon sequestration,and the risk assessment of carbon sequestration for terrestrial ecosystems will be helpful to the decision-making for climate change countermeasures and international climate negotiations.Based on the net ecosystem productivity of terrestrial ecosystems simulated by Atmosphere Vegetation Integrated Model,each grid of the risk criterion was set by time series trend analysis.Then the risks of carbon sequestration of terrestrial ecosystems were investigated.The results show that,in the IPCCSRES-B2 climate scenario,climate change will bring risks of carbon sequestration,and the high-risk level will dominate terrestrial ecosystems.The risk would expand with the increase of warming degree.By the end of the long-term of this century,about 60% of the whole country will face the risk;Northwest China,mountainous areas in Northeast China,middle and lower reaches plain of Yangtze River areas,Southwest China and Southeast China tend to be extremely vulnerable.Risk levels in most regions are likely to grow with the increase of warming degree,and this increase will mainly occur during the near-term to mid-term.Northwest China will become an area of high risks,and deciduous coniferous forests,temperate mixed forests and desert grassland tend to be extremely vulnerable.