Biochars derived from banana and mango peels in isolated systems revealed high removal efficiency of endocrine-disrupting compounds from water

被引:1
作者
Kasambala, Hildegard R. [1 ,2 ]
Rwiza, Mwemezi J. [1 ]
Mpumi, Nelson [1 ]
Mwema, Mwema Felix [1 ]
Njau, Karoli K. [1 ]
机构
[1] NM AIST, Sch Mat Energy Water & Environm Sci MEWES, Arusha, Tanzania
[2] MUST, Dept Earth Sci, Mbeya, Tanzania
关键词
Endocrine-disrupting compound; Isolated systems; Progesterone; Banana peel biochar; Mango biochar; Adsorption; WASTE-WATER; ADSORPTION; ADSORBENTS; FEEDSTOCK; SORPTION;
D O I
10.1007/s13399-024-06196-8
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
This study investigated the effectiveness of biochar derived from banana and disrupting endocrine-disrupting compounds (EDCs) from water in isolated systems. The study aimed to provide an eco-friendly solution for water purification using agricultural waste products. Banana and mango peels were dried, ground, and calcinated at 300, 550, and 700 degrees C temperatures. The biochar was tested through a batch adsorption experiment for the removal of progesterone, and the remaining progesterone was analyzed using high-performance liquid chromatography (HPLC). Results indicated that the banana peel biochar (BPB) and mango peel biochar (MPB) achieved the highest adsorption capacities of 92.8 and 87.9%, respectively, when subjected to pyrolysis at 700 degrees C. The effect of other factors on adsorbent efficiency and its characteristics were subsequently analyzed by biochar calcinated at 700 degrees C. Results indicate that as the concentration of adsorbent increases, the adsorption efficiency increases while the adsorption capacity decreases. The Langmuir model fits better in BPB, while the Freundlich model fits better in MPB. The maximum adsorption capacities of the Langmuir model were 43.42 and 37.80 mg of progesterone per g of BPB and MPB, respectively. The scanning electron microscopy image (SEM) showed that biochar from 700 degrees C presents higher porosities than biochar. The Brunauer-Emmett-Teller (BET) showed that both biochars had high surface area and equal pore volume. Therefore, the study suggests that BPB and MPB are the best eco-friendly agricultural waste materials for development of sustainable water treatment technologies for removal of EDCs from water.
引用
收藏
页码:13575 / 13588
页数:14
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