回收4种新疆农业废弃物制备生物质炭,以亚甲基蓝为模拟物,研究不同炭材料的吸附性能。通过正交响应面试验,探究时间、温度、pH和添加量对炭材料吸附效果的影响。采用吸附动力学曲线、吸附等温线阐明不同炭材料的吸附特点,并对炭材料形貌特点进行表征。结果表明:4种炭材料的吸附率随时间、pH、添加量的增加而增加。吸附效果的大小顺序为玉米秆炭>枣枝炭>棉秆炭>核桃壳炭;吸附条件影响大小顺序为添加量>时间>pH>温度。其中玉米秆炭吸附效果最好,最高吸附率可达99.39%。
Four kinds of agricultural wastes in Xinjiang were recycled to prepare biomass carbon,and the adsorption properties of different carbon materials were studied by using methylene blue as simulant.The effects of time,temperature,pH and dosage on the adsorption of carbon materials were investigated by orthogonal response surface test.Adsorption kinetics curve and adsorption isotherm were used to clarify the adsorption characteristics of different carbon materials,and the morphology characteristics of carbon materials were characterized.The results showed that the adsorption rate of four kinds of carbon materials increased with the increase of time,pH and addition amount.Adsorption effect:corn stalk carbon>jujube branch carbon>cotton stalk carbon>walnut shell carbon.Adsorption conditions:dosage>time>pH>temperature.Among them,corn stalk carbon had the best adsorption effect,and the highest adsorption rate can reach 99.39%.
[1] 高倩,周岭,张红美,等.新疆南疆地区农林生物质资源分布与利用研究[J].新疆农机化,2021,4(1):17-22.
[2] 农业部办公厅关于推介发布秸秆农用十大模式的通知[J].中华人民共和国农业部公报,2017,4(5):43.
[3] González-García P.Activated carbon from lignocellulosics precursors:a review of the synthesis methods,characterization techniques and applications[J].Renewable and Sustainable Energy Reviews,2018,82:1393-1414.
[4] Koelmans A A,Jonker M,Cornelissen G,et al.Black carbon:the reverse of its dark side[J].Chemosphere,2006,63(3):365-377.
[5] 袁秦英.梧桐树皮生物炭对亚甲基蓝的吸附性能研究[D].郑州:华北水利水电大学,2020.
[6] 钱敏,吴缨.梧桐叶生物质炭的制备、表征及吸附性能研究[J].安徽化工,2020,46(4):25-32,37.
[7] Bai Z G,Dent D L,Olsson L,et al.Proxy global assessment of land degradation[J].Soil Use and Management,2008,24(3):223-234.
[8] Lehmann Johannes,Rillig Matthias C,Thies Janice,et al.Biochar effects on soil biota-a review[J].Soil Biology and Biochemistry,2011,43(9):1812-1836.
[9] 陈泳,徐惠,王时雨,等.聚吡咯/凹凸棒纳米复合材料对Cr6+的吸附性能[J].高分子材料科学与工程,2013,29(8):54-58.
[10] 田雨,刘晓刚,赵玉,等.稻壳炭制备工艺参数对吸附性能的影响[J].农业工程学报,2020,36(24):211-217.
[11] Shamsollahi Zahra,Partovinia Ali.Recent advances on pollutants removal by rice husk as a bio-based adsorbent:a critical review[J].Journal of Environmental Management,2019,246:314-323.
基金资助
南疆特色果树高效优质栽培与深加工技术国家地方联合工程实验室开放课题(FE202003);兵团重点领域科技攻关项目(2019AB028)
PDF
