Novel process for deep removal of chlorine and recycling of chlorinated tailings from titanium-bearing blast-furnace slag

Lv, Xiaodong; Song, Kun; Xin, Yuntao; Lv, Xuewei

doi:10.1016/j.psep.2022.01.056

Cited by 8 publications

(1 citation statement)

References 13 publications

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“…Interestingly, Lv et al [35] has pointed out that salt could be removed at a higher calcination temperature. Thus, the changes in the Cl − , NO 3 − , and SO 4 2− contents of the washed shells, depending on whether the shells were calcined, are shown in Figure 8.…”

Section: Comparisons With Pretreatment Methods On Impurities Removal ...mentioning

confidence: 99%

Evaluation of Washing and Screening for Upgrading the Calcium Content of Oyster Shells Using a Simulated Wet-Type Trommel

Lee

Kim

2022

Sustainability

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The oyster shells produced at shucking sites contain various organic and inorganic impurities and are discharged without proper pretreatment. In the present study, we confirmed a process for removing organic/inorganic impurities and salts from abandoned shells using a wet type of trommel. A particle size analysis showed that the inorganic impurities in the studied shells were Si, Fe, Al, etc. derived from sediment, and their contents were relatively rich in fine particles. Dissolved ions (Cl−, SO42−, and NO3−) and organic matter (carbon, nitrogen, and phosphorus) can be removed concurrently for a short period (<5 min) by a trommel. The higher removal efficiencies for total organic carbon (TOC, ~93.4%), total nitrogen (TN, ~59.9%), and total phosphorous (TP, ~92.9%) in the washing wastewaters after filtration not only indicate increased organic matter in the fine particles derived from crushed shells during trommel operation, but also that a certain portion could be removed by precipitation. However, considering that a small amount of salt compounds (Na and Cl) still remains in the shell even after calcination followed by washing, the scope of shell use must be considered.

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Section: Comparisons With Pretreatment Methods On Impurities Removal ...mentioning

confidence: 99%

Evaluation of Washing and Screening for Upgrading the Calcium Content of Oyster Shells Using a Simulated Wet-Type Trommel

Lee

Kim

2022

Sustainability

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Preparation of a lightweight calcium silicate board using chlorine-containing Ti-extraction blast furnace slag and diatomite

Li,

Jiang,

Yang

et al. 2024

J Mater Cycles Waste Manag

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Preparation of Lightweight Calcium Silicate Board with Low Chlorine Dissolution Rate Using Ti-Extracted Blast Furnace Slag and Fly Ash

Jiang

Wen

et al. 2023

J. Sustain. Metall.

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Novel process for deep removal of chlorine and recycling of chlorinated tailings from titanium-bearing blast-furnace slag

Cited by 8 publications

References 13 publications

Evaluation of Washing and Screening for Upgrading the Calcium Content of Oyster Shells Using a Simulated Wet-Type Trommel

Evaluation of Washing and Screening for Upgrading the Calcium Content of Oyster Shells Using a Simulated Wet-Type Trommel

Preparation of a lightweight calcium silicate board using chlorine-containing Ti-extraction blast furnace slag and diatomite

Preparation of Lightweight Calcium Silicate Board with Low Chlorine Dissolution Rate Using Ti-Extracted Blast Furnace Slag and Fly Ash

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