Biochar from fungiculture waste for adsorption of endocrine disruptors in water

被引:13
|
作者
Leite Vieira, Raquel Andrade [1 ]
Pickler, Thaisa Borim [1 ]
Mena Segato, Talita Cristina [1 ]
Jozala, Angela Faustino [2 ]
Grotto, Denise [1 ]
机构
[1] Univ Sorocaba, LAPETOX Lab Toxicol Res, Sorocaba, Brazil
[2] Univ Sorocaba, LAMINFE Lab Ind Microbiol & Fermentat Proc, Sorocaba, Brazil
关键词
CORN STRAW; REMOVAL; PYROLYSIS; 17-BETA-ESTRADIOL; CONTAMINANTS; POLLUTANTS; BEHAVIOR; IMPACTS; PHENOLS; CARBON;
D O I
10.1038/s41598-022-10165-4
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The agricultural residues are ecofriendly alternatives for removing contaminants from water. In this way, a novel biochar from the spent mushroom substrate (SMS) was produced and assessed to remove endocrine disruptor from water in batch and fixed-bed method. SMS were dried, ground, and pyrolyzed. Pyrolysis was carried out in three different conditions at 250 and 450 degrees C, with a residence time of 1 h, and at 600 degrees C with a residence time of 20 min. The biochar was firstly tested in a pilot batch with 17 alpha-ethinylestradiol (EE2) and progesterone. The residual concentrations of the endocrine disruptors were determined by HPLC. The biochar obtained at 600 degrees C showed the best removal efficiency results. Then, adsorption parameters (isotherm and kinetics), fixed bed tests and biochar characterization were carried out. The Langmuir model fits better to progesterone while the Freundlich model fits better to EE2. The Langmuir model isotherm indicated a maximum adsorption capacity of 232.64 mg progesterone/g biochar, and 138.98 mg EE2/g biochar. Images from scanning electrons microscopy showed that the 600 degrees C biochar presented higher porosity than others. In the fixed bed test the removal capacity was more than 80% for both endocrine disruptors. Thus, the biochar showed a good and viable option for removal of contaminants, such as hormones.
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页数:10
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