●1 Mercury and Its Effects on Environment and Human's Health
1.1 Mercury Emission Sources
1.2 Mercury Speciation and Its Transportation
1.3 The Effect of Mercury on Environment and Human' s Health
References
2 The Status of Mercury Emission from Coal Combustion
Power Station
2.1 Flue Gas Mercury Emission and Its Speciation
2.2 The Status of Mercury Emission in the USA
2.3 The Status of Mercury Emission in China
2.4 The Status of Global Mercury Emission
References
3 Coal-Fired-Derived Flue Gas Mercury Measurement
3.1 Ontario Hydro Method (OHM)
3.1.1 Introduction of OHM
3.1.2 Procedure and QA/QC of OHM
3.2 Semicontinuous Emission Monitor (SCEM)
3.2.1 Introduction of SCEM
3.2.2 Comparison Between Different SCEM Methods
3.3 Appendix K (Sorbent Trap Method)
3.4 Comparison Between Different Mercury Emission Measurement Methods
3.4.1 Comparison Between SCEM and OHM
3.4.2 Comparison Between OHM, SCEM, and Appendix K
3.5 The Effects of Mercury Measurements on Mercury Speciation ..
References
4 The Influence Factors on Mercury Speciation
4.1 The Effect of Halogen on Mercury Speciation
4.1.1 The Effect of Chlorine and Chloride on Mercury Speciation
4.1.2 The Effect of Other Halogen on Mercury Speciation
4.1.3 Addition of Hydrogen Bromide (HBr)
4.1.4 Addition of Hydrogen Iodine (HI)
4.1.5 Comparison of Impacts on Hg(0) Oxidation by Different Halogen Additives
4.2 The Effect of SO2, NOx, and Other Constitutes on Mercury Speciation
4.2.1 The Effect of SOx on Mercury Speciation
4.2.2 The Effect of NOx on Mercury Speciation
4.2.3 The Effect of NO and SO2 on Mercury Oxidation by HCI
4.2.4 The Effect of H20 on Mercury Speciation
4.2.5 The Effect of Fly Ash on Mercury Speciation
References
5 Coal-Fired Flue-Gas Mercury Control Technologies
5.1 The Co-benefit of Existing Air Pollution Control Devices (APCDs)
5.2 Sorbent Development and Its Mercury Emission
Removal Efficiency
5.2.1 Activated Carbon (AC) and Powdered Activated Carbon (PAC)
5.2.2 Modified Powdered Activated Carbon
5.2.3 Fly Ash
5.2.4 Novel Sorbent
5.3 Evaluation of the Effect of Sorbent Injection on Mercury Removal
5.4 Additives into the Coal Combustion
5.5 lti-pollution Emission Control Technology
5.6 The Developing Trend of Coal-Fired Fine-Gas Mercury Emission Controls
5.6.1 Fuel/Raw Material Pretreatment
5.6.2 Existing Air Pollution Control Devices (APCDs)
5.6.3 Mercury Adsorption
5.6.4 Mercury Oxidation
References
Index
汞(Hg)是對環境和人類健康危害最嚴重的有毒重金屬之一。汞從自然和人為來源中釋放到大氣,其排放控制已經引起了多方面的重視。本書介紹了自然和人為來源的汞污染和工業中的燃煤煙氣的汞排放控制,特別是繫統地描述了燃煤發電站的汞排放控制。本書對汞排放的控制理論和實驗研究進行了論述,素是如何被氧化成氧化汞以及煙氣成分對汞形態轉換過程的影響。本書全面地介紹了汞排放的控制方法,例如:電廠裡現有的APCDs(空氣污染控制設備)方法、吸附劑噴射法、煤燃燒的添加劑法和光催化法。本書作者繫統性地給出了實驗室規模、中試規模以及工業應用規模上的吸附劑噴射的實驗研究成果,這有助於研究人員和工程師對吸附劑噴射法降低汞排放機理的理解以及應用這些方法在燃煤發電廠進行汞排放的控制。讀者可以全面地了解可能的汞排放控制方法以及其中一些方法的工業應用。