Process development of flue gas desulphurization wastewater treatment in coal-fired power plants towards zero liquid discharge: Energetic, economic and …
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Zero emission of wastewater from coal-fired power plants (CFPPs) is one of the pathways for cleaner electricity production. It is expected that low-cost and reliable zero liquid discharge (ZLD) of flue gas desulphurization (FGD) wastewater will be achieved by applying the forced circulation multi-effect distillation and crystallization (FC-MEDC) …
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1. Introduction. In China, coal-fired power plants produced large amounts of combustion residuals, including fly ash and flue gas desulfurization (FGD) gypsum [1].Due to the increasingly strict air control policy, the amount of combustion by-products has increased rapidly.
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1. Introduction. Particulate matter (PM) is a major pollutant that is emitted from coal-fired power plants (CFPPs) in the form of filterable particulate matter (FPM) and condensable particulate matter (CPM) (Feng et al., 2018).FPM is directly emitted from the stack as a solid or liquid state, and can be captured on filter media (Yang et al., 2018), …
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Hao, Y. et al. Characterization and leaching toxicities of mercury in flue gas desulfurization gypsum from coal-fired power plants in China. Fuel 177, 157–163 (2016). Article CAS Google Scholar
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The desulfurization wastewater in coal-fired power plants is difficult to treat due to its high salt concentration and complex composition. In this study, a pilot-scale evaporation tower system ...
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Flue gas desulfurization gypsum (FGDG) is an industrial by-product generated during the flue gas desulfurization process in coal-fired power plants. Due to its abundance, chemical and physical properties, FGDG has been used in several beneficial applications. However, during the past decade, the rate of beneficially used FGDG has …
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Recent additions include Shenergy's Pingshan Phase II, a cutting-edge 1.35-GW USC coal-fired unit, which achieves a net efficiency of 49.37%—making it the world's most efficient coal-fired ...
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The emissions of coal-fired power plants (CFPPs) ... (PM 1) were collected after electrostatic precipitator before the desulfurization plant (DSP), including flue gas desulfurization unit (FGD) and baghouse filters, and simultaneously in the smokestack to study the influence of DSP to particulate mass and chemistry. The DSP removed over …
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Flue Gas Desulfurization Technologies for Coal-Fired Power Plants. 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 ...
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Introduction. Since the "Eleventh Five-Year Plan" period, the construction of flue gas desulfurization and denitrification facilities for coal-fired power plants have …
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The prediction of desulfurization efficiency has important guiding significance for the operation and control of desulfurization system. Taking a 1000MW unit in China as an example, considering the main factors affecting the limestone/gypsum wet flue gas desulfurization efficiency, a Long short-term memory neural network (LSTM) is used to …
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Limestone–gypsum wet desulfurization technology is an effective flue gas desulfurization technology (Yan et al. 2017), and it is commonly used in coal-fired power plants because of its high maturity and stable operation (Bogacki et al. 2018, Zheng et al. 2019).A desulfurization system replenishes process water regularly and discharges …
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A. Moganelwa. Environmental Science, Engineering. Clean Technologies and Environmental Policy. 2021. Sulphur dioxide (SO2) abatement technologies, i.e. flue …
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The availability of such kinetic model allows designing plants to treat R-FGD of coal-fired power plants aiming at converting Ca + 2 /Mg + 2 sulfites into less problematic and more valuable Ca 2＋ /Mg 2 + sulfates. Download : Download high-res image (240KB) Download : Download full-size image; Fig. 1. Pilot plant diagram for dry …
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Abstract. In the situation of severe energy and ecological problems, waste heat recovery is essential to achieve the current carbon neutrality. This paper proposes …
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In China, coal is still the primary feedstock for power plants. Therefore, a large amount of waste has been and is being generated, especially flue gas desulfurization residues (FGDR), which are the main by-products of coal-fired power plants produced in wet or dry scrubbers that remove acid gas from flue gas, usually …
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The limestone gypsum-based wet desulfurization (WFGD) process is widely applied for flue gas desulfurization in coal-fired power plants. However, enrichment of elemental chlorine in the desulfurization slurry would significantly impact the desulfurization efficiency, which requires regular discharge of desulfurization …
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Mercury emission from coal-fired power plants into the atmosphere has been extensively reviewed. ... Most of the mercury in the fly ash and desulfurization gypsum produced from coal-fired plants exists in unburned carbon in the form of sulfur-, chlorine-, and oxygen-related compounds [30]. In particular, sulfur has a strong affinity …
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Heavy metals distribution characteristics of FGD gypsum samples from Shanxi province 12 coal-fired power plants and its potential environmental impacts. Fuel, 209 (2017), pp. 238-245. ... Flue gas desulfurization methods in coal-fired power plant. Przem. Chem., 96 (4) (2017), pp. 731-736. View in Scopus Google Scholar. Mishra et …
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DOI: 10.2991/IFEESD-16.2016.179 Corpus ID: 56301685; Experimental Study of Flue Gas Desulfurization Wastewater Zero Discharge from Coal-fired Power Plant @inproceedings{Li2016ExperimentalSO, title={Experimental Study of Flue Gas Desulfurization Wastewater Zero Discharge from Coal-fired Power Plant}, …
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Flue gas desulfurization gypsum (FGDG) is an industrial byproduct generated during the flue gas desulfurization process in coal-fired power plants. Flue gas desulfurization systems have been used to limit the release of sulfur dioxide from coal-fired power plants since the late 1960s, but in the past decade the production of …
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Abstract: Coal-fired power plants (CFPPs) are recently one of the most significant greenhouse gas (GHG) emissions sources due to coal utilization. Extensive attention regarding environmental issues from GHG emissions has emerged, especially SO 2 effluents from CFPPs, which cause a severe impact on the surrounding environment. …
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To achieve ultralow-emission (ULE) standards, wet electrostatic precipitators (WESP) installed downstream from wet flue gas desulfurization (WFGD) have been widely used in Chinese coal-fired power plants (CFPPs). We conducted a comprehensive field test study at four 300 MW level ULE CFPPs, to explore the impact of wet clean processing (WFGD …
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Experimental study on the treatment of desulfurization wastewater from coal-fired power plant by spray evaporation. Research Article. Published: 25 July …
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Wet-limestone scrubber enhancement chemistry improves heat rate for coal-fired plants. In early 2019, Power Engineering published a report on a chemistry that can significantly enhance limestone ...
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He Z Q,Qi L M. Coal-fired Power Plant Flue Gas Desulfurization Wastewater Treatment Process[J].Technology of Water Treatment.2010,36(3):133-135. Summarization of Non-discharge for Water-saving and ...
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Coal-fired power plants with semi-dry flue gas desulfurization produce several metric tons per day of residues with 10–18%w/w of hemi-hydrated calcium sulfite. The rest of the 90–80%w/w of such residues contains silica, aluminium-silicates and calcium/magnesium carbonates, sulfates and hydroxides.
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The desulfurization sludge was collected from four coal-fired power plants located in China's Shandong Province (two power plants, A and B) and inner Mongolia (two power plants, C and D). The detailed configuration and the air pollution control devices (APCDs) are summarized in Table 1 .
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At present, most of the coal-fired power plants are equipped with the flue gas desulfurization (FGD) facilities, among which the limestone–gypsum wet flue gas desulfurization is the most widely used due to its high removal efficiency and maturity [[4], [5], [6]]. As of 2014, more than 90% of the coal-fired power plants were equipped with …
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