دورية أكاديمية
أعرض في EDS

Recycling and reuse of waste agricultural plastics with hydrothermal pretreatment and low-temperature pyrolysis method.

التفاصيل البيبلوغرافية
العنوان: Recycling and reuse of waste agricultural plastics with hydrothermal pretreatment and low-temperature pyrolysis method.
المؤلفون: Chen B; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, No. 31 Fukang Road, Nankai District, Tianjin 300191, China., Shen F; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, No. 31 Fukang Road, Nankai District, Tianjin 300191, China., Tong L; Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology, Beijing, 100054, China., Zhou J; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, No. 31 Fukang Road, Nankai District, Tianjin 300191, China., Smith RL; Graduate School of Environmental Studies, Tohoku University, Aramaki Aza Aoba 468-1, Aoba-ku, Sendai 980-8572, Japan., Guo H; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, No. 31 Fukang Road, Nankai District, Tianjin 300191, China. Electronic address: haixin_g@126.com.
المصدر: Chemosphere [Chemosphere] 2024 Aug; Vol. 362, pp. 142769. Date of Electronic Publication: 2024 Jul 03.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Elsevier Science Ltd Country of Publication: England NLM ID: 0320657 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1298 (Electronic) Linking ISSN: 00456535 NLM ISO Abbreviation: Chemosphere Subsets: MEDLINE
أسماء مطبوعة: Publication: Oxford : Elsevier Science Ltd
Original Publication: Oxford, New York, : Pergamon Press.
مواضيع طبية MeSH: Recycling*/methods , Plastics*/chemistry , Pyrolysis* , Agriculture*/methods , Polyethylene*/chemistry, Adsorption ; Nitrogen/chemistry ; Nitrogen/analysis ; Phosphates/chemistry ; Temperature
مستخلص: 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.
Competing Interests: Declaration of competing interest All authors discussed the results and contributed to the manuscript (e.g. Writing - original draft, Writing - review & editing). There are no conflicts to declare.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
فهرسة مساهمة: Keywords: Food security; Functional biochar; Mulch film recycling; Nitrogen and phosphorus adsorbent; Polyethylene-lime pyrolysis
المشرفين على المادة: 0 (Plastics)
9002-88-4 (Polyethylene)
N762921K75 (Nitrogen)
0 (Phosphates)
تواريخ الأحداث: Date Created: 20240705 Date Completed: 20240808 Latest Revision: 20240808
رمز التحديث: 20240808
DOI: 10.1016/j.chemosphere.2024.142769
PMID: 38969227
قاعدة البيانات: MEDLINE
الوصف
تدمد:1879-1298
DOI:10.1016/j.chemosphere.2024.142769