Use of dirty plastic waste as precursors for activated carbon production-A contribution to the circular economy

被引：22

作者：

da Paixao Cansado, Isabel Pestana ^{[1
]}

Mira Mourao, Paulo Alexandre ^{[1
]}

Valente Nabais, Joao Manuel ^{[2
]}

Tita, Barbara ^{[3
]}

Batista, Teresa ^{[4
,5
]}

Rocha, Telmo ^{[4
]}

Borges, Catia ^{[6
]}

Matos, Gilda ^{[6
]}

机构：

[1] Univ Evora, Colegio Luis Antonio Verney, Escola Ciencias & Tecnol,Dept Quim, LAQV REQUIMTE,Inst Invest & Formacao Avancada, P-7005671 Evora, Portugal

[2] Univ Evora, Comprehens Hlth Res Ctr CHRC, Dept Quim, Escola Ciencias & Tecnol, Evora, Portugal

[3] Empresa Desenvolvimento & Infraestruturas Alqueva, Dept Ambiente & Ordenamento Terr, Beja, Portugal

[4] Comunidade Intermunicipal Alentejo Cent CIMAC, Evora, Portugal

[5] Univ Evora, Inst Mediterraneo Agr Ambiente & Desenvolvimento, Evora, Portugal

[6] EIM, Gesamb Gestao Ambiental & Residuos, Evora, Portugal

来源：

WATER AND ENVIRONMENT JOURNAL | 2022年 / 36卷 / 01期

关键词：

activated carbons; circular economy; pollutants removal; urban waste plastic; 2,4-DICHLOROPHENOXYACETIC ACID; REMOVAL; ADSORPTION; URBAN; WATER;

D O I：

10.1111/wej.12762

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The production of activated carbons (ACs) from dirty plastic wastes derived from the mechanical/biological treatment of urban solid wastes, disposable plastics and plastics used in agriculture is reported. The use of these precursors is innovative and contributes to the circular economy by the valorization of dirty plastics that are usually disposed in landfills. ACs were produced by physical activation, with air or CO2, and chemical activation, with KOH or K2CO3. ACs presented a BET (N-2) area and pore volume up to 723 m(2)/g and 0.32 cm(3)/g. Selected samples were tested for the 2,4-dichlorophenoxyacetic acid (MCPA) and 4-chloro-2-methyl-phenoxyacetic acid (2,4-D) removal from the liquid phase. PB-K2CO3-1:1-700 presented an apparent maximum adsorption capacity of 245 and 289 mg g(-1) for MCPA and 2,4-D, respectively.

引用

页码：96 / 104

页数：9

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