Effects of ammonium sulphate fertilization on arsenic mobility, speciation, and toxicity in soils planted with barley

Thouin, Hugues; Guédard, Marina Le; Hellal, Jennifer; Joulian, Catherine; Charron, Mickaël; Devau, Nicolas; Battaglia-Brunet, Fabienne

doi:10.1007/s11368-022-03238-4

Cited by 2 publications

(2 citation statements)

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“…[10][11][12][13] Ammonium sulfate, a by-product of flue gas desulfurization by the ammonia solution, can be used as fertilizer. 14 In the ammonia desulphurization technology, the crystallization of ammonium sulfate has some problems, such as low crystallization rate and poor crystal nucleus formation, which lead to difficult separation and unstable operation of the unit. 15,16 Since the 1970s, many scholars have studied the crystallization kinetics of ammonium sulfate.…”

Section: Introductionmentioning

confidence: 99%

“…Wet ammonia‐based desulfurization technology has been widely concerned because of its small footprint, low investment cost, ammonia source easy to obtain, and other advantages 10–13 . Ammonium sulfate, a by‐product of flue gas desulfurization by the ammonia solution, can be used as fertilizer 14 . In the ammonia desulphurization technology, the crystallization of ammonium sulfate has some problems, such as low crystallization rate and poor crystal nucleus formation, which lead to difficult separation and unstable operation of the unit 15,16 .…”

Section: Introductionmentioning

confidence: 99%

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Process optimization and crystallization kinetics of ammonium sulfate from wet ammonia‐based desulfurization

Peng,

Yang,

Lian

2023

Env Prog and Sustain Energy

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There are some problems in the production of ammonium sulfate, a byproduct of the ammonia desulfurization process, such as small crystal size and uneven distribution. The evaporative crystallization kinetics of ammonium sulfate and the factors affecting the crystallization of ammonium sulfate for improving the quality of ammonium sulfate were studied. The results showed that the largest mean diameter of ammonium sulfate was obtained at a stirring speed of 400 r/min, evaporation temperature of 60 °C, and pH of 5.0. The particle size of the ammonium sulfate increased when the crystal seed was introduced. The metastable region of ammonium sulfate was determined by laser method. The crystallization process of ammonium sulfate was studied using population balance equations and intermittent dynamic method, and the empirical equation of nucleation rate and growth rate of ammonium sulfate crystallization was obtained. This experiment can provide a solution for the problems existing in the production of ammonium sulfate in the process of ammonia desulfurization.

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