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Phosphate adsorption characteristics of oil shale modified biochar
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Shulin Zhou1, Tursun Yalkunjan1, Hashan Ayikelimu1, Hongsheng Wang2, Abduryim Ayxamgul1, Abuduhani Hairat1, Chen Zhang1
Renewable Energy Resources | 2024, 42(1) : 1 - 8
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Renewable Energy Resources | 2024, 42(1): 1-8
Phosphate adsorption characteristics of oil shale modified biochar
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Shulin Zhou1, Tursun Yalkunjan1, Hashan Ayikelimu1, Hongsheng Wang2, Abduryim Ayxamgul1, Abuduhani Hairat1, Chen Zhang1
Affiliations
  • 1 Xinjiang Key Laboratory of Coal Clean Conversion & Chemical Engineering Process, College of Chemical Engineering Xinjiang University Urumqi 830046 China
  • 2 Xinjiang Baoming Mining Limited Company Changji 831700 China
Published: 2024-01-20
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This study aims to address the challenges of phosphorus recovery and solid waste treatment by preparing biochar composites(OSCS) using a copyrolysis method with cotton straw stalk and oil shale as raw materials. The physicochemical properties of the biochar were analyzed using SEMEDS, BET and FTIR tests. The influence of pyrolysis temperature, adsorbent dosage, and solution pH on phosphate adsorption was investigated, and both the adsorption kinetics and isotherm models were studied. The results indicated that the structural properties and surface morphology of the biochar were significantly enhanced through oil shale modification, leading to a notable improvement in phosphate adsorption capacity. At an injection level of 4.0 g/L and pH5.0, the maximum adsorption capacity reached 7.01 mg/g, which was 2.47 times higher than that of cotton straw biochar and 3.52 times higher than that of oil shale char. The adsorption process followed the proposed secondary kinetics and Langmuir isothermal adsorption model, and the mechanisms involved surface precipitation, ligand exchange, and electrostatic attraction. This approach of oil shale modified biochar composites provides a novel strategy for both phosphorus removal and solid waste resource utilization.

biochar  /  modification  /  oil shale  /  phosphate  /  adsorption
Shulin Zhou, Tursun Yalkunjan, Hashan Ayikelimu, Hongsheng Wang, Abduryim Ayxamgul, Abuduhani Hairat, Chen Zhang. Phosphate adsorption characteristics of oil shale modified biochar[J]. Renewable Energy Resources, 2024 , 42 (1) : 1 -8 .
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Article Info
  • Receive Date：2022-02-18
  • Online Date：2025-07-22
  • Published：2024-01-20
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  • Received：2022-02-18
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    1 Xinjiang Key Laboratory of Coal Clean Conversion & Chemical Engineering Process, College of Chemical Engineering Xinjiang University Urumqi 830046 China
    2 Xinjiang Baoming Mining Limited Company Changji 831700 China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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