Treatment of Wet FGD Wastewater by a Modified Chemical Precipitation Method Using a Solid Powder Reagent

Kang, Yong; Liu, Jia; Guo, Jing

doi:10.1007/s12209-017-0027-4

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…The efficiency of dry desulfurization is lower than that of wet desulfurization, thereby preventing the large-scale application of dry desulfurization. Limestone-gypsum as a kind of absorbent in one of the wet desulfurization methods has been widely used in practice [7][8][9]. However, limestonegypsum has various inherent disadvantages, such as the production of a large amount of wastewater, high operating cost, useless byproducts that cause secondary pollutants, and intensive energy consumption.…”

Section: Introductionmentioning

confidence: 99%

pH-Responsive and Buffering Macromolecule Aqueous Absorbent and Mathematic Model-Based Feasibility Evaluation for SO2 Capture

Feng

Zhang

et al. 2018

Trans. Tianjin Univ.

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An organic macromolecule, poly(1-vinylimidazole), with an appropriate polymerization degree was proposed and mixed with water to form a novel aqueous absorbent for SO 2 capture. This aqueous solution absorbent has the advantages of simple preparation, good physicochemical properties, environment-friendliness, high ability in deep removal of SO 2 , and excellent reusability. Moreover, pH-responsive behavior, pH buffering absorption mechanism, and their synergistic effect on absorption performance were revealed. The solubilities of SO 2 in the absorbent were measured in detail, and the results demonstrated excellent absorption capacity and recyclability. Then, mathematic models that describe SO 2 absorption equilibrium were established, and the corresponding parameters were estimated. More importantly, on the basis of model and experimental data, the absorption and desorption could maintain high efficiency within a wide operating region. In summary, this work provided a low-cost, efficient, and unique absorbent for SO 2 capture and verified its technical feasibility in industrial application.

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Section: Introductionmentioning

confidence: 99%

pH-Responsive and Buffering Macromolecule Aqueous Absorbent and Mathematic Model-Based Feasibility Evaluation for SO2 Capture

Feng

Zhang

et al. 2018

Trans. Tianjin Univ.

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“…Of the current methods for removing heavy metals from wastewaters, chemical precipitation is widely applied due to its convenient operation, capability to treat large volume of wastewater, low cost and so on [1,2,3] . However, conventional chemical precipitation process possesses poor efficiency and is unable to meet the increasingly stringent environmental regulations when it comes to the treatment of wastewaters contaminated by chelated metals [4,5] .…”

Section: Introductionmentioning

confidence: 99%

Application of a Novel Nano-composite Reagent to the Treatment of Wastewaters Containing Chelated Copper

Jiang¹,

Zhang²,

Su³

et al. 2017

dteees

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A novel nano-composite reagent (NCR) was prepared for the treatment of wastewaters containing copper chelates, such as CuEDTA, CuNTA, CuCA and CuDTPA etc. The experimental results showed that NCR could effectively remove chelated copper from wastewaters under conditions of pH ≥ 10 and NCR dosage ≥ 200 mg L-1, where the removal efficiency could reach as high as 98.94%. The turbidity of wastewater could be decreased to 1 NTU below after settling for 50 min, which indicated a good settling performance of the yielded precipitates.

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Clean power production by simultaneous reduction of NOx and SOx contaminants using Mazut Nano-Emulsion and wet flue gas desulfurization

Kouravand

Kermani

2018

Journal of Cleaner Production

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Treatment of Wet FGD Wastewater by a Modified Chemical Precipitation Method Using a Solid Powder Reagent

Cited by 8 publications

References 19 publications

pH-Responsive and Buffering Macromolecule Aqueous Absorbent and Mathematic Model-Based Feasibility Evaluation for SO2 Capture

pH-Responsive and Buffering Macromolecule Aqueous Absorbent and Mathematic Model-Based Feasibility Evaluation for SO2 Capture

Application of a Novel Nano-composite Reagent to the Treatment of Wastewaters Containing Chelated Copper

Clean power production by simultaneous reduction of NOx and SOx contaminants using Mazut Nano-Emulsion and wet flue gas desulfurization

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