Coal Gasification Slag-Derived Ceramsite for High-Efficiency Phosphorus Removal from Wastewater.

Yu Li, Ruifeng Wang, Kexuan Shen, Yi Ye, Hui Liu, Zhanfeng Yang, Shengli An

Abstract read

In one paragraph

Article in Nanomaterials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

7 authors.

Yu LiKey Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou 014010, China.

Ruifeng WangSchool of Chemical Engineering, Ordos Institute of Technology, Ordos 017010, China.

Kexuan ShenKey Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou 014010, China.

Yi YeKey Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou 014010, China.

Hui LiuKey Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou 014010, China.

Zhanfeng YangKey Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou 014010, China.

Shengli AnKey Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources, Inner Mongolia University of Science and Technology, Ministry of Education, Baotou 014010, China.ORCID 0000-0003-1857-3045

Funding

the First-Class Discipline Research Special Project of Inner Mongolia YLXKZX-NKD-042the Fundamental Scientific Research Funds for the Universities Directly under the Inner Mongolia 201-0406082230the Major Science and Technology Project of Inner Mongolia Autonomous Region 2021ZD0016the National Key Research and Development Program of China 2020YFC1909100 and 2020YFC1909105

6 · The paper itself

Abstract

Coal gasification slag (CGS), an industrial solid waste produced during high-temperature (1200-1600 °C) coal gasification, was utilized as the primary raw material, combined with minor additions of coal gangue and calcium oxide, to synthesize ceramsite filter via high-temperature sintering (900-1160 °C) for phosphorus-containing wastewater treatment. The resulting ceramsite was evaluated for compressive strength, apparent porosity, water absorption, mineral phase composition, hydrolysis properties, and phosphorus removal performance. Experimental results revealed that increasing sintering temperature and calcium oxide content shifted the dominant crystalline phases from anorthite and hematite to gehlenite, anorthite, wollastonite, and esseneite, promoting the formation of porous structures. This transition increased apparent porosity while reducing compressive strength. Under optimal conditions (1130 °C, 20 wt.% CaO, 1 h sintering), the ceramsite (CM-20-1130) exhibited an apparent porosity of 43.12%, compressive strength of 3.88 MPa, apparent density of 1.084 g/cm

Indexed as

coal gasification slaggehlenitephosphorus removalsintered ceramsite

Identifiers

PMID41369493

DOI10.3390/nano15231822

PMCPMC12693300

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