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·Flue gas desulfurization FGD gypsum is a byproduct of the combustion of coal used for electricity generation This material is generated during the process of scrubbing flue gases from power plants to remove sulfur dioxide emissions which contribute to acid rain and other environmental problems
·Desulfurization wastewater was obtained from a coal fired power plant in Chongqing China This desulfurization wastewater was collected at the location between the desulfurization system and the wastewater treatment plant The concentrations of some important ions in the wastewater are shown in Table 1
·The conditions of the industrial desulfurization process in a power plant are much more complicated than that in a laboratory To check whether the results in a power plant were in accordance with the results in the laboratory the desulfurization efficiency of the lime gypsum slurry with calcium formate additive was evaluated in a system including
·Compared to SFGDA generated by power plants the composition of SFGDA from steel plants is complex and variable This is primarily due to the presence of a wide range of impurities including CaSO 3 CaSO 4 CaCO 3 f CaO CaCl 2 and oxides of Si Mg Fe Al among others which collectively contribute to its reddish brown
·Thus the potential for using calcium formate as a desulfurization additive in power plants is worthy of investigation In this work the effect of calcium formate as an additive on desulfurization was investigated in a stirred tank The limestone requirement and pH value of the lime gypsum slurry were determined after different amounts of
·Coal fired power plants account for a large share of the power generation market in China The mainstream method of desulfurization employed in the coal fired power generation sector now is wet flue gas desulfurization This process is known to have a high cost and be energy /materially intensive Due to the complicated desulfurization
·The research development and application of the evaporation treatment technology for the wet flue gas desulfurization FGD wastewater in power plants will help promote the green development and technological innovation of the thermal power industry realize the recycling of water resources and reduce environmental pollution Able et al
·The results show that WFGD wastewater evaporation before SCR is beneficial to improve the efficiency of Hg oxidized and removed in APCDs ABSTRACT Desulfurization wastewater evaporation technology is used to enhance the removal of gaseous mercury Hg in conventional air pollution control devices APCDs for coal fired
·Flue gas desulfurization Flue gas desulfurization is commonly known as FGD and is the technology used for removing sulfur dioxide SO 2 from the exhaust combustion flue gases of power plants that burn coal oroil to produce steam for the turbines that drive their electricity generators The most common types of FGD contact the flue
The control of sulfur dioxide emissions from thermal power plants is examined in light of the recent advances made in developing commercial processes for this appli cation Beginning with a discussion of some of the more recent developments in the conventional wet and dry scrubbing technologies the paper provides a description of the results of the recent full
·The paper estimates the effect of SO 2 pollution on infant mortality in Germany 1985 2003 To avoid endogeneity problems I exploit the natural experiment created by the mandated desulfurization at power plants and power plants location and prevailing wind directions which together determine treatment intensity for
·The reduction of wet desulfurization wastewater is one of the important tasks of coal fired power plants and it is important for achieving zero emissions Evaporation and concentration E&C with waste heat is an effective way to reduce wastewater Here two typical types of industrial desulfurization wastewater are used to
Journal Air pollution and infant mortality a natural experiment from power plant desulfurization 。 、、
·Selenium Se removal from synthetic solutions and from real Flue Gas Desulfurization FGD wastewater generated by a coal fired power plant was studied for the first time using a commercial iron oxide impregnated strong base anion exchange resin Purolite ® FerrIX A33E In synthetic solutions the resin showed high affinity for selenate
·[6] Ma K and Li Q 2015 Study on New Progress of Flue Gas Desulfurization Technology in Thermal Power plant Environment and Sustainable Development 40 94 96 Google Scholar [7] Kang X Y 2014 Research progress of coal fired flue gas simultaneous desulfurization and denitrification Clean Coal Technology 6 115 118 Google Scholar
·Flue gas desulfurized gypsum mainly comes from thermal power plants smelters and large enterprise boilers and contains industrial by products produced through a wet desulfurization combustion process where SO 2 gas and lime slurry react under strong oxidation conditions The main component of this gypsum is calcium sulfate
·Increasingly flue gas desulfurization FGD systems are being installed to control sulfur dioxide emissions in power plants utilizing coal or oil For power plants located on an ocean coast
·Seawater flue gas desulfurization SWFGD is considered to be a viable solution for coastal and naval applications; however this process has several drawbacks including its corrosive absorbent
·Continued reliance on coal fired power plants CFPPs to meet electricity demand has necessitated the utilization of pollution control technologies at these facilities throughout the world Gingerich et al 2018 Although the Chinese government has made great efforts to develop renewable energy and nuclear power plants in recent years
·Fossil fuel combustion is a serious environmental problem Significant quantities of flue gasses and wastewater requiring further treatment are produced This article compares three wet flue gas desulfurization FGD wastewater treatment methods coagulation with precipitation using iron III ions—recommended by the European Union
·risen price of limestone the current desulfurization system power price policy of China cannot compensate the running cost of the desulfurization system in power plant rationally and leads to lower economy of desulfurization system Keywords Desulfurization power price; Wet flue gas desulfurization system; Cost and benefit
·The power plants are facing more stringent environmental restrictions especially after the implementation of new air pollutant emission standards in coal fired power plant GB13223 2011 in 2012 [1] At present in most coal fired power plants in China wet limestone gypsum flue gas desulfurization FGD is most widely used
·In the production process of coal fired power plants the substantial emissions of SO2 and NOx pose a significant environmental threat if not appropriately addressed Effectively reducing the emissions of these harmful substances has become a crucial task for national ecological pollution prevention and control This research aims to
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