不同电解质对牛粪生物炭吸附-解吸富里酸的影响

doi:10.19741/j.issn.1673-4831.2022.0506

摘要/Abstract

摘要： 为了探讨牛粪生物炭对富里酸(fulvic acid, FA)吸附-解吸的影响,减少FA的流失、提高FA的利用率,采用Langmuir和Freundlic方程、准一级和准二级方程以及颗粒内扩散方程来研究NaCl、Na₂SO₄和Na₃PO₄这3种电解质对牛粪生物炭中FA吸附和解吸的影响。结果表明,牛粪生物炭对FA的等温吸附过程符合Langmuir方程,动力学方程符合准二级方程;3种电解质中牛粪生物炭对FA的等温吸附和解吸过程有显著差异,其吸附量和吸附率大小顺序均为NaCl＞Na₂SO₄＞Na₃PO₄,解吸量和解吸率的大小顺序均为Na₃PO₄＞Na₂SO₄＞NaCl,MBC吸附强度与解吸强度也反应了这一规律;3种电解质中牛粪生物炭对FA吸附和解吸动力学过程有显著的差异,其吸附量和吸附率的大小顺序均为NaCl＞Na₂SO₄＞Na₃PO₄,解吸量和解吸率的大小顺序均为Na₃PO₄＞Na₂SO₄＞NaCl。颗粒内扩散方程拟合结果发现,3种电解质中牛粪生物炭对FA的吸附是由表面吸附与颗粒内扩散同步控制。综上,NaCl中牛粪生物炭对FA的吸附效果最好,有利于增强土壤肥力,提高有机污染物的吸附能力,改善生态环境。

关键词: 电解质, 牛粪生物炭, 富里酸, 吸附, 解吸

Abstract: In order to reduce the loss of fulvic acid and to improve its utilization, the effect of dairy manure biochar on fulvic acid adsorption-desorption was investigated by using indoor experiment. The Langmuir and Freundlich equations, pseudo-first-order model, pseudo-second-order model and intra-particle diffusion equation were used to study the effects of dairy manure biochar on the adsorption and desorption of fulvic acid by the three kinds of electrolytes (NaCl, Na₂SO₄ and Na₃PO₄). The results show that the isothermal adsorption process of dairy manure biochar on FA was in accordance with the Langmuir equation, and the kinetic equation was in accordance with the pseudo-second-order equation. It was significantly different for the dairy manure biochar on the isothermal adsorption and desorption processes of FA with the three kinds of electrolytes, the order of adsorption capacity and adsorption rates were NaCl>Na₂SO₄>Na₃PO₄, the order of desorption capacity and desorption rates were Na₃PO₄>Na₂SO₄>NaCl, the adsorption intensity and desorption intensity of MBC also reacted to this rule. It was significantly different with the three kinds of electrolytes on adsorption and desorption kinetics of FA by dairy manure biochar, and the order of adsorption capacity and adsorption rates were NaCl>Na₂SO₄>Na₃PO₄, the order of desorption capacity and desorption rates were Na₃PO₄>Na₂SO₄>NaCl. The results from the Intra-particle diffusion equation also showed the simultaneous control of the external diffusion and the diffusion of inter-particle. In summary, NaCl has the strongest effect on the adsorption of FA by the dairy manure biochar, which is beneficial for the enhancement of soil fertility, the improvement of the organic pollutants adsorption capacity, and the improvement of the ecological environment.

Key words: electrolyte, dairy manure biochar, fulvic acid, adsorption, desorption

中图分类号:

S157.1

黄惠群, 曾和平, 刘西苑. 不同电解质对牛粪生物炭吸附-解吸富里酸的影响[J]. 生态与农村环境学报, 2023, 39(12): 1637-1645.

HUANG Hui-qun, ZENG He-ping, LIU Xi-yuan. Effects of Different Electrolytes on Adsorption-desorption of Fulvic Acid onto Dairy Manure Biochar[J]. Journal of Ecology and Rural Environment, 2023, 39(12): 1637-1645.

参考文献

[1] 潘占东,马倩倩,陈晓龙,等.添加生物质炭对黄土高原旱作农田土壤养分、腐殖质及其组分的影响[J]. 草业学报,2022,31(2):14-24.[PAN Zhan-dong,MA Qian-qian,CHEN Xiao-long,et al.Effects of Biochar Addition on Nutrient Levels and Humus and Its Components in Dry Farmland Soils on the Loess Plateau[J]. Acta Prataculturae Sinica,2022,31(2):14-24.]
[2] 张强,席北斗,杨津津,等.不同物料堆肥富里酸的结构特征的研究[J]. 中国环境科学,2021,41(2):763-770.[ZHANG Qiang,XI Bei-dou,YANG Jin-jin,et al.Structural Characteristics of Fulvic Acid Composted with Different Materials[J]. China Environmental Science,2021,41(2):763-770.]
[3] SMOLEN＇ S,LEDWOYW-SMOLEN＇ I,SADY W.The Role of Exogenous Humic and Fulvic Acids in Iodine Biofortification in Spinach (Spinacia oleracea L.)[J]. Plant and Soil,2016,402(1):129-143.
[4] PRIYA B N V,MAHAVISHNAN K,GURUMURTHY D S,et al.Fulvic Acid (FA) for Enhanced Nutrient Uptake and Growth:Insights from Biochemical and Genomic Studies[J]. Journal of Crop Improvement,2014,28(6):740-757.
[5] CHUN L T.Effect of Se-Zn and Fulvic Acid Combined Application on Antioxidant Enzyme Activities and Forage Yield of Alfalfa[J]. Chinese Journal of Grassland,2014,36(4):65-71.
[6] SUH H Y,YOO K S,SUH S G.Erratum To:Effect of Foliar Application of Fulvic Acid on Plant Growth and Fruit Quality of Tomato (Lycopersicon esculentum L.)[J]. Horticulture,Environment,and Biotechnology,2016,57(3):308.
[7] 潘晓莹,时仁勇,洪志能,等.富里酸对红壤酸度的改良及酸化阻控效果[J]. 土壤,2020,52(4):685-690.[PAN Xiao-ying,SHI Ren-yong,HONG Zhi-neng,et al.Effect of Fulvic Acid on Ameliorating Soil Acidity and pH Buffering Capacity of Two Ultisols[J]. Soils,2020,52(4):685-690.]
[8] 赵越,赵保卫,刘辉,等.热解温度对生物炭理化性质和吸湿性的影响[J]. 环境化学,2020,39(7):2005-2012.[ZHAO Yue,ZHAO Bao-wei,LIU Hui,et al.Effect of Pyrolysis Temperature on Physicochemical Properties and Hygroscopicity of Biochar[J]. Environmental Chemistry,2020,39(7):2005-2012.]
[9] WOOLF D,LEHMANN J.Modelling the Long-term Response to Positive and Negative Priming of Soil Organic Carbon by Black Carbon[J]. Biogeochemistry,2012,111(1):83-95.
[10] 张伟明,修立群,吴迪,等.生物炭的结构及其理化特性研究回顾与展望[J]. 作物学报,2021,47(1):1-18.[ZHANG Wei-ming,XIU Li-qun,WU Di,et al.Review of Biochar Structure and Physicochemical Properties[J]. Acta Agronomica Sinica,2021,47(1):1-18.]
[11] CREAMER A E,GAO B,ZHANG M.Carbon Dioxide Capture Using Biochar Produced from Sugarcane Bagasse and Hickory Wood[J]. Chemical Engineering Journal,2014,249:174-179.
[12] 段浩楠,吕宏虹,王夫美,等.生物炭/铁复合材料的制备及其在环境修复中的应用研究进展[J]. 环境化学,2020,39(3):774-790.[DUAN Hao-nan,LÜ Hong-hong,WANG Fu-mei,et al.Preparation of Biochar/Iron Composite and Its Application in Environmental Remediation[J]. Environmental Chemistry,2020,39(3):774-790.]
[13] 邢莉彬,成洁,耿增超,等.不同原料生物炭的理化特性及其作炭基肥缓释载体的潜力评价[J]. 环境科学,2022,43(5):2770-2778.[XING Li-bin,CHENG Jie,GENG Zeng-chao,et al.Physicochemical Properties of Biochars Prepared from Different Feedstocks and Evaluation of Its Potential as a Slow-release Carriers for Biochar-Based Fertilizers[J]. Environmental Science,2022,43(5):2770-2778.]
[14] 张新帅,张红宇,黄凯,等.石灰与生物炭对矿山废水污染农田土壤的改良效应[J]. 农业环境科学学报,2022,41(3):481-491.[ZHANG Xin-shuai,ZHANG Hong-yu,HUANG Kai,et al.Beneficial Effects of Lime and Biochar Application on Farmland Soil Polluted by Mine Wastewater[J]. Journal of Agro-environment Science,2022,41(3):481-491.]
[15] QAYYUM M F,ASHRAF I,ABID M,et al.Effect of Biochar,Lime,and Compost Application on Phosphorus Adsorption in a Ferralsol[J]. Journal of Plant Nutrition and Soil Science,2015,178(4):576-581.
[16] 王冰,赵闪闪,秦治家,等.生物质炭对黑土吸附-解吸硝态氮性能的影响[J]. 农业环境科学学报,2016,35(1):115-121.[WANG Bing,ZHAO Shan-shan,QIN Zhi-jia,et al.Effect of Biochar on Adsorption-desorption Characteristics of Nitrate Nitrogen in Black Soil[J]. Journal of Agro-environment Science,2016,35(1):115-121.]
[17] 赵璐,杨艳芳,张平究.制备方法对生物质炭外源磷吸附解吸的影响[J]. 土壤通报,2019,50(5):1159-1165.[ZHAO Lu,YANG Yan-fang,ZHANG Ping-jiu.Influences of Preparation Method on the Characteristics of Phosphorus Adsorption-Desorption on Biochars[J]. Chinese Journal of Soil Science,2019,50(5):1159-1165.]
[18] XU G,SUN J N,SHAO H B,et al.Biochar Had Effects on Phosphorus Sorption and Desorption in Three Soils with Differing Acidity[J]. Ecological Engineering,2014,62:54-60.
[19] TANG S A,LIN L J,WANG X S,et al.Kinetics of Cu(Ⅱ) and Fulvic Acid Adsorption on Modified Biochar Derived from Rice Husk[J]. Desalination and Water Treatment,2020,189:305-315.
[20] YANG K,XING B S.Adsorption of Fulvic Acid by Carbon Nanotubes from Water[J]. Environmental Pollution,2009,157(4):1095-1100.
[21] LI S X,HE M X,LI Z J,et al.Removal of Humic Acid from Aqueous Solution by Magnetic Multi-walled Carbon Nanotubes Decorated with Calcium[J]. Journal of Molecular Liquids,2017,230:520-528.
[22] 陈宁,陈艳,田超,等.无机汞和甲基汞在土壤中的吸附-解吸特性研究[J]. 农业环境科学学报,2013,32(6):1159-1165.[CHEN Ning,CHEN Yan,TIAN Chao,et al.Adsorption-Desorption Characteristics of Inorganic Mercury and Methyl Mercury in Soils[J]. Journal of Agro-environment Science,2013,32(6):1159-1165.]
[23] RAUTHULA M S,SRIVASTAVA V C.Studies on Adsorption/Desorption of Nitrobenzene and Humic Acid Onto/from Activated Carbon[J]. Chemical Engineering Journal,2011,168(1):35-43.
[24] 汪艳如,侯杰发,郭建华,等.冻融循环对牦牛粪生物炭吸附氨氮的影响[J]. 农业环境科学学报,2017,36(3):566-573.[WANG Yan-ru,HOU Jie-fa,GUO Jian-hua,et al.Effects of Freeze-Thaw Cycles on Ammonium-nitrogen Adsorption of Yak Dung Biochar[J]. Journal of Agro-environment Science,2017,36(3):566-573.]
[25] WENG L P,VAN RIEMSDIJK W H,HIEMSTRA T.Adsorption of Humic Acids Onto Goethite:Effects of Molar Mass,pH and Ionic Strength[J]. Journal of Colloid and Interface Science,2007,314(1):107-118.
[26] ARAMI M,LIMAEE N Y,MAHMOODI N M.Evaluation of the Adsorption Kinetics and Equilibrium for the Potential Removal of Acid Dyes Using a Biosorbent[J]. Chemical Engineering Journal,2008,139(1):2-10.