Recycling and reuse of waste agricultural plastics with hydrothermal pretreatment and low-temperature pyrolysis method
文献类型: 外文期刊
作者: Bingkun Chen;Feng Shen;Li Tong;Jiajiang Zhou;Richard Lee Smith;Haixin Guo
作者机构:
关键词: Food security;Functional biochar;Mulch film recycling;Nitrogen and phosphorus adsorbent;Polyethylene-lime pyrolysis
期刊名称: Chemosphere
ISSN: 0045-6535
年卷期: 2024 年 362 卷
页码:
收录情况: SCIE(2024版) ; ; EI(2024版)
摘要: Recycling and reuse of agricultural plastics is an urgent worldwide issue. In this work, it is shown that low-density polyethylene (PE) typically used in mulch films can be converted into high-capacity P and N adsorbents through a two-step method that uses hydrothermal pretreatment (180 °C, 24 h) followed by pyrolysis at 500 °C with Ca(OH)2 additive. CaPE@HC500 materials prepared with the proposed two-step method were found to have high adsorption capacities for phosphate (263.6 mg/g) and nitrogen (200.7 mg/g) over wide ranges of pH (3–11). Dynamic adsorption of phosphate by CaPE@HC500 material in a packed-bed had a half-time breakthrough of 210 min indicating the feasibility of continuous systems. Material stability, cost, environmental-friendliness, and recyclability of the CaPE@HC500 material were determined to be superior to literature-proposed Ca-containing adsorbents. The two-step method for converting waste agricultural plastic mulch films into adsorbents is robust and highly-applicable to industrial settings.
分类号:
- 相关文献
作者其他论文 更多>>
-
Simultaneous removal of nitrate and antibiotics by a coupled electrochemical system with N-doped Ce/Fe nanoclusters
作者:Jianhua Dong;Ziming Hu;Yujie Xu;Yixuan Feng;Yuanyuan Cao;Le Liu;Haixin Guo;Xiaoning Liu
关键词:Bimetallic electrodes;Composite pollution;Electrocatalysis;Series reactions;Water treatment
-
Recent advances and prospects of iron-based biochar for antibiotic removal: Unveiling the dual mechanisms of adsorption and degradation
作者:Junjie Wang;Yifan Liu;Xue Li;Ran Zhao;Xiaoquan Mu;Fengxia Yang;Haixin Guo;Yongzhen Ding
关键词:Adsorption;Advanced oxidation processes;Antibiotic Removal;Iron-based biochar;Reactive oxygen species
-
Coordination-assembly synthesis of Pt-based high-entropy oxide catalysts for VOC oxidation: dual role of ligands in reducing formation barrier and anchoring active sites
作者:Xiao Zhang;Wenxin Liu;Feng Shen;Boxiong Shen;Shuhao Li
关键词:Catalytic oxidation;Coordination-assembly;High entropy oxide;Pt dispersion;Volatile organic compounds
-
Efficient hydrogenolysis of furfuryl alcohol to 1,5-pentanediol over NiLa@ZrO2 catalyst
作者:Yiwei Tang;Richard L. Smith;Bowen Yang;Haixin Guo;Yaqiong Su;Xinhua Qi
关键词:1;5-PDO;Furfuryl alcohol;Ring-opening;Selective hydrogenolysis
-
Enhanced glucose conversion to formic acid with deep eutectic solvents-mediated bimetallic oxides: Morphology and valence state regulation
作者:Hejuan Wu;Hongrui Guo;Boxiong Shen;Xiao Zhang;Feng Shen
关键词:Bimetallic oxide;Biomass oxidation;Deep eutectic solvents;Formic acid
-
Highly Efficient Catalytic Oxidation of Glucose to Formic Acid over Mn-Mo Doped Carbon Nanotube
作者:Hongrui Guo;Fan Yang;Siwei Chen;Hejuan Wu;Jirui Yang;Feng Shen
关键词:bimetallic oxides;carbohydrates;lignocellulose;manganese oxides
-
PtZn alloy - N-doped biocarbon catalyst derived from rice straw for alkali-free glucose oxidation
作者:Hengyu Hao;Jiajiang Zhou;Li Tong;Richard Lee Smith;Feng Shen;Haixin Guo
关键词:Alkali-free;Biocarbon;Biomass;N-doped carbon;Room temperature;Solvothermal synthesis