Emissions of gaseous and particulate pollutants in a port and harbour region in India

Ports can generate large quantity of pollutants in the atmosphere due to various activities like loading and unloading,transportation, and construction operations. Determination of the character and quantity of emissions from individual sources is an essential step in any project to control and minimize the emissions.In this study a detailed emission inventory of total suspendedparticulate matter (TSP), particulate matter less than 10 m(PM₁₀), sulfur dioxide (SO₂) and nitrogen oxides (NO_x) for a port and harbour project near Mumbai is compiled. Results show that the total annual average contributions of TSP and PM₁₀ from all the port activitieswere 872 and 221 t yr^-1, respectively. Annual average emissions of gaseous pollutants SO₂ and NO_xwere 56 and 397 t yr^-1, respectively, calculatedby using emission factors for different port activities. The maximum TSP emission (419 t yr ^-1) was from paved roads, while the least (0.4 t yr^-1) was from bulk handling activity. The maximum PM₁₀ emission (123 t yr^-1) was from unpaved roads and minimum (0.2 t yr^-1) from bulk handling operations. Similarly the ratio of TSP and PM₁₀ emission was highest (5.18) from paved roads and least (2.17) from bulk handling operations. Regression relation was derivedfrom existing emission data of TSP and PM₁₀ from variousport activities. Good correlation was observed between TSP andPM₁₀ having regression coefficient >0.8.     

MERCURY EMISSION INVENTORY IN ONTARIO

Mercury is released to the environment from various anthropogenic and natural sources. This work is a compilation of mercury emissions from anthropogenic sources in Ontario, Canada. The goal of our study was to identify all sources of mercury, and develop an emission inventory of anthropogenic mercury in Ontario. The result of our investigation revealed that combustion of fossil fuels and emissions from landfill sites are two primary sources of mercury to the atmosphere. Other sources of significance are emissions from waste incinerators, various industrial activities, and cement production. Total mercury emission in Ontario is estimated as 4100 kg per year.     

旋风除尘设备质量现存问题剖析

论述了旋风除尘设备在产品生产过程呼使用中存在的问题，分析了现存问题的原因，提出了提高旋风除尘设备产品质量及使用效果的对策措施。     

中国火葬场二噁英类污染物排放及减排技术研究

对中国某火葬场9具遗体进行了二(口恶)英类污染物排放测试,测试结果表明,烟气中二(口恶)英类物质总浓度为89～350ng·m-3,毒性当量浓度为1.5～5.4ng·m-3;PCDFs的总浓度高于PCDDs的总浓度;以此估算中国2004年火化遗体过程中二(口恶)英类污染物的年排放量为11.2～46.9 g·a-1.通过实验分别研究了布袋除尘器、布袋除尘器加不同厚度的活性炭纤维毡组合对火化遗体烟气中二(口恶)英类污染物的去除效果.结果表明,布袋除尘器去除火化烟气中二(口恶)英类污染物的效率为57.4%;布袋除尘器分别与厚度为5、15mm的活性炭纤维毡组合去除火化烟气中二(口恶)英类污染物的效率分别为64.0%和89.2%.     

脉冲电晕等离子体脱硫脱氮与除尘技术

脉冲电晕放电是产生等离子体的方法之一，目前已达到工业性试验阶段，该文对脉冲电晕等离子脱硫脱氮与除尘技术的形成过程进行了回顾，对其理论作了分析，并简介了工艺流程，还指出了目前存在的主要问题和需研究的关键技术。     

Developing Canada's National Forest Carbon Monitoring, Accounting and Reporting System to Meet the Reporting Requirements of the Kyoto Protocol

The rate of carbon accumulation in the atmosphere can be reduced by decreasing emissions from the burning of fossil fuels and by increasing the net uptake (or reducing the net loss) of carbon in terrestrial (and aquatic) ecosystems. The Kyoto Protocol addresses both the release and uptake of carbon. Canada is developing a National Forest Carbon Monitoring, Accounting and Reporting System in support of its international obligations to report greenhouse gas sources and sinks. This system employs forest-inventory data, growth and yield information, and statistics on natural disturbances, management actions and land-use change to estimate forest carbon stocks, changes in carbon stocks, and emissions of non-CO₂ greenhouse gases. A key component of the system is the Carbon Budget Model of the Canadian Forest Sector (CBM-CFS). The model is undergoing extensive revisions to enable analyses at four spatial scales (national, provincial, forest management unit and stand) and in annual time steps. The model and the supporting databases can be used to assess carbon-stock changes between 1990 and the present, and to predict future carbon-stock changes based on scenarios of future disturbance rates and management actions.     

一种粉煤灰加气砼清洁生产新技术的研究

针对粉煤灰加气砼砌块生产的特点，分析了粉煤灰加气砼清洁生产的基本技术，设计了一种粉煤灰加气砼破碎磨粉车间清洁生产新方法，该方法能实现粉煤灰加气砼破碎磨粉车间湿式去尘，并有效提高水、气资源的综合利用率，该方法也可用于其它粉尘排放量大的场所除尘。     

利用电除尘器降低蓄电池生产中铅尘排放量研究

阐述了利用电除尘器降低蓄电池铅尘排放量的方法和效果     

高压聚乙烯装置粉尘污染的防治

分析了产生粉尘过多的原因及粉尘收集系统存在的问题，结合本装置的实际情况提出了粉尘的综合防治方案，并取得了初步的成功。     

燃煤锅炉除尘脱硫废水处理与循环利用技术

介绍了采用沉灰、沉渣中和、微滤三池毗连的废水处理方法及板式微孔过滤新技术，实现燃煤锅炉除尘脱硫废水封闭循环利用。