Converting plastic-contaminated agricultural residues into fit-for-purpose biochar soil amendment: an initial study

Abstract

•	The obtained biochar was nutrient-rich, porous, and low in Pb and Cd.
•	The PAHs concentrations in the biochars rose with increasing pyrolysis temperatures.
•	Biochar pyrolyzed at 500 °C exhibited the highest adsorption capacity for Pb and Cd.
•	Biochars significantly promoted cabbage yield and immobilized soil Pb and Cd.
•	Biochars raised Acpy and Nap in cabbage leaves but BaP and total PAHs within safe levels.

Keywords

Agricultural plastic waste / Crop residues / Biochar / Soil amendment

References

[1] Albert HA, Li X, Jeyakumar P, Wei L, Huang L, Huang Q, Kamran M, Shaheen SM, Hou D, Rinklebe J, Liu Z, Wang H. Influence of biochar and soil properties on soil and plant tissue concentrations of Cd and Pb: a meta-analysis. Sci Total Environ, 2021, 755

[2] Azeem M, Sun TR, Jeyasundar PGSA, Han RX, Li H, Abdelrahman H, Shaheen SM, Zhu YG, Li G. Biochar-derived dissolved organic matter (BDOM) and its influence on soil microbial community composition, function, and activity: a review. Crit Rev Env Sci Technol, 2023, 53: 1912-1934

[3] Aziz S, Bibi S, Hasan MM, Biswas P, Ali MI, Bilal M, Chopra H, Mukerjee N, Maitra S. A review on influence of biochar amendment on soil processes and environmental remediation. Biotechnol Genet Eng, 2023, 1: 1-35

[4] Bao S. Soil agrochemical analysis, 2000 3 BeiJing: Agriculture Press

[5] Buema G, Lupu N, Chiriac H, Ciobanu G, Bucur RD, Bucur D, Favier L, Harja M. Performance assessment of five adsorbents based on fly ash for removal of cadmium ions. J Mol Liq, 2021, 333

[6] Buss W, Hilber I, Graham MC, Mašek O. Composition of PAHs in biochar and implications for biochar production. ACS Sustain Chem Eng, 2022, 10: 6755-6765

[7] CFDA (China Food and Drug Administration) (2017) National Food Safety Standard Limits of Contaminants in Food (GB 2762–2017) . http://www.mengyin.gov.cn/info/4600/89286.htm. Accessed 2 Jan 2024

[8] Cui X, Fang S, Yao Y, Li T, Ni Q, Yang X, He Z. Potential mechanisms of cadmium removal from aqueous solution by Canna indica derived biochar. Sci Total Environ, 2016, 562: 517-525

[9] Dai L, Lata S, Cobb K, Zou R, Lei H, Chen P, Ruan R. Recent advances in polyolefinic plastic pyrolysis to produce fuels and chemicals. J Anal Appl Pyrolysis, 2024, 180

[10] Deng Y, Huang S, Dong C, Meng Z, Wang X. Competitive adsorption behaviour and mechanisms of cadmium, nickel and ammonium from aqueous solution by fresh and ageing rice straw biochars. Bioresour Technol, 2020, 303

[11] EBC (European Biochar Certificate) (2023) European Biochar Certificate Guidelines for a sustainable production of biochar. https://www.european-biochar.org/en/. Accessed 2 Jan 2024

[12] FAO Statistical Yearbook (2022) Food and Agriculture Organization of the United Nations. https://www.fao.org/home/zh. Accessed 2 Jan 2024

[13] Hale SE, Lehmann J, Rutherford D, Zimmerman AR, Bachmann RT, Shitumbanuma V, O’Toole A, Sundqvist KL, Arp HPH, Cornelissen G. Quantifying the total and bioavailable polycyclic aromatic hydrocarbons and dioxins in biochars. Environ Sci Technol, 2012, 46: 2830-2838

[14] Hassan H, Hameed BH, Lim JK. Co-pyrolysis of sugarcane bagasse and waste high-density polyethylene: Synergistic effect and product distributions. Energy, 2020, 191

[15] He LL, Huang DY, Zhang Q, Zhu HH, Xu C, Li B, Zhu QH. Meta-analysis of the effects of liming on soil pH and cadmium accumulation in crops. Ecotoxicol Environ Saf, 2021, 223

[16] He T, Zhong S, Liu C, Shujaa A, Zhang B. Enhancing hydrocarbon production via ex-situ catalytic co-pyrolysis of biomass and high-density polyethylene: Study of synergistic effect and aromatics selectivity. Waste Manage, 2021, 128: 189-199

[17] Huang D (2020) Measures for the management of agricultural films. https://www.gov.cn/zhengce/zhengceku/2020-08/02/content_5531956.htm. Accessed 2 Jan 2024

[18] Huang T, Hu L, Wu J, Zhang W, Mao L. Characteristics of biochar and adsorption of Cd²⁺ in bovine bones at different pyrolysis temperatures. J Agro-Environ Sci, 2023, 42(7): 1632-1644

[19] IBI (International Biochar Initiative) (2015) CERTIFICATION PROGRAM. https://biocharinternational.org/standard-certification-training/certification-program/. Accessed 2 Jan 2024

[20] Inyang MI, Gao B, Yao Y, Xue Y, Zimmerman A, Mosa A, Pullammanappallil P, Ok YS, Cao X. A review of biochar as a low-cost adsorbent for aqueous heavy metal removal. Crit Rev Env Sci Technol, 2016, 46: 406-433

[21] Kai X, Yang T, Shen S, Li R. TG-FTIR-MS study of synergistic effects during co-pyrolysis of corn stalk and high-density polyethylene (HDPE). Energy Convers Manage, 2019, 181: 202-213

[22] Khan A, Mirza M, Fahlman B, Rybchuk R, Yang J, Harfield D, Anyia AO. Mapping thermomechanical pulp sludge (TMPS) biochar characteristics for greenhouse produce safety. J Agric Food Chem, 2015, 63(5): 1648-1657

[23] Khan R, Chu J, Margrave J, Hauge R, Smalley R. Free radical chemistry during slow pyrolysis of solid fuels. Energy Source, 2005, 27(3): 279-298

[24] Khan S, Waqas M, Ding F, Shamshad I, Arp HPH, Li G. The influence of various biochars on the bioaccessibility and bioaccumulation of PAHs and potentially toxic elements to turnips (Brassica rapa L.). J Hazard Mater, 2015, 300: 243-253

[25] Khan ZH, Gao M, Qiu W, Song Z. Properties and adsorption mechanism of magnetic biochar modified with molybdenum disulfide for cadmium in aqueous solution. Chemosphere, 2020, 255

[26] Kicińska A, Pomykała R, Izquierdo-Diaz M. Changes in soil pH and mobility of heavy metals in contaminated soils. Eur J Soil Sci, 2022, 73(1):

[27] Kou W, Wang W, Jiang C, Zhou L, Wu K. Integrated cultivation technology of water and fertilizer for chestnut pumpkin greenhouse in northern Anhui. Chin Melon Veg, 2020, 33(11): 102-104

[28] Lanorte A, De Santis F, Nolè G, Blanco I, Loisi RV, Schettini E, Vox G. Agricultural plastic waste spatial estimation by Landsat 8 satellite images. Comput Electron Agric, 2017, 141: 35-45

[29] Li X, Pan C, Song Y, Yuan X, Cheng H, Ni N, Wang Z. Co-pyrolysis technology and high-value utilization of typical plastic and biomass waste. Environ Res, 2023, 36: 1765-1678

[30] Lian W, Yang L, Joseph S, Shi W, Bian R, Zheng J, Li L, Shan S, Pan G. Utilization of biochar produced from invasive plant species to efficiently adsorb Cd (II) and Pb (II). Bioresour Technol, 2020, 317

[31] Liao W, Zhang X, Ke S, Shao J, Yang H, Zhang S, Chen H. Effect of different biomass species and pyrolysis temperatures on heavy metal adsorption, stability and economy of biochar. Ind Crops Products, 2022, 186

[32] Liao W, Zhang X, Ke S, Shao J, Yang H, Zhang S, Chen H. The influence of biomass species and pyrolysis temperature on carbon-retention ability and heavy metal adsorption property during biochar aging. Fuel Process Technol, 2023, 240

[33] Lin X, Chen X, Fu P, Tang B, Bi D. Highly efficient production of monocyclic aromatics from catalytic co-pyrolysis of biomass and plastic with nitrogen-doped activated carbon catalyst. Chem Eng J, 2023, 474

[34] Liu X, Burra KG, Wang Z, Li J, Che D, Gupta AK. On deconvolution for understanding synergistic effects in co-pyrolysis of pinewood and polypropylene. Appl Energy, 2020, 279

[35] López A, de Marco I, Caballero BM, Laresgoiti MF, Adrados A. Influence of time and temperature on pyrolysis of plastic wastes in a semi-batch reactor. Chem Eng J, 2011, 173: 62-71

[36] Lu Z, Gao P. Analysis of climate suitability of Wallace melon in Dengkou County. Chin Melon Veg, 2019, 32: 129-133

[37] Ma Z, Yang Y, Ma Q, Zhou H, Luo X, Liu X, Wang S. Evolution of the chemical composition, functional group, pore structure and crystallographic structure of bio-char from palm kernel shell pyrolysis under different temperatures. J Anal Appl Pyrolysis, 2017, 127: 350-359

[38] Ma Z, Zhang Y, Shen Y, Wang J, Yang Y, Zhang W, Wang S. Oxygen migration characteristics during bamboo torrefaction process based on the properties of torrefied solid, gaseous, and liquid products. Biomass Bioenergy, 2019, 128

[39] MacLeod M, Arp HPH, Tekman MB, Jahnke A. The global threat from plastic pollution. Science, 2021, 373: 61-65

[40] MEPRC (Ministry of Environment of the People's Republic of China) (2020) Communiqué of the Second National Survey of Pollution Sources. https://www.mee.gov.cn/xxgk2018/xxgk/xxgk01/202006/W020200610353985963290. Accessed 2 Jan 2024

[41] Mohseni-Bandpei A, Majlesi M, Rafiee M, Nojavan S, Nowrouz P, Zolfagharpour H. Polycyclic aromatic hydrocarbons (PAHs) formation during the fast pyrolysis of hazardous health-care waste. Chemosphere, 2019, 227: 277-288

[42] Oh SY, Seo TC. Upgrading biochar via co-pyrolyzation of agricultural biomass and polyethylene terephthalate wastes. RSC Adv, 2019, 9(48): 28284-28290

[43] Park JH, Wang JJ, Kim SH, Kang SW, Jeong CY, Jeon JR, Park KH, Cho JS, Delaune RD, Seo DC. Cadmium adsorption characteristics of biochars derived using various pine tree residues and pyrolysis temperatures. J Colloid Interface Sci, 2019, 553: 298-307

[44] Parikh SJ, Mukome FND, Zhang X. ATR–FTIR spectroscopic evidence for biomolecular phosphorus and carboxyl groups facilitating bacterial adhesion to iron oxides. Colloids Surf B, 2014, 119: 38-46

[45] Qi R, Jones DL, Li Z, Liu Q, Yan C. Behavior of microplastics and plastic film residues in the soil environment: a critical review. Sci Total Environ, 2020, 703

[46] Qin G, Niu Z, Yu J, Li Z, Ma J, Xiang P. Soil heavy metal pollution and food safety in China: effects, sources and removing technology. Chemosphere, 2021, 267

[47] Rathnayake D, Ehidiamhen PO, Egene CE, Stevens CV, Meers E, Mašek O, Ronsse F. Investigation of biomass and agricultural plastic co-pyrolysis: effect on biochar yield and properties. J Anal Appl Pyrolysis, 2021, 155

[48] Rodriguez JA, Lustosa Filho JF, Melo LCA, de Assis IR, de Oliveira TS. Co-pyrolysis of agricultural and industrial wastes changes the composition and stability of biochars and can improve their agricultural and environmental benefits. J Anal Appl Pyrolysis, 2021, 155

[49] Scarascia Mugnozza G, Schettini E, Loisi RV, Blanco I, Vox G. Georeferencing of agricultural plastic waste. Rivista Di Studi Sulla Sostenibilita’, 2016, 1: 71-82

[50] Sebestyén Z, Barta-Rajnai E, Bozi J, Blazsó M, Jakab E, Miskolczi N, Sója J, Zs C. Thermo-catalytic pyrolysis of biomass and plastic mixtures using HZSM-5. Appl Energy, 2017, 207: 114-122

[51] Shen Z, Hou D, Jin F, Shi J, Fan X, Tsang DCW, Alessi DS. Effect of production temperature on lead removal mechanisms by rice straw biochars. Sci Total Environ, 2019, 655: 751-758

[52] Shi W, Lian W, Tian S, Gong X, Yu Q, Guo Z, Zhang X, Ma B, Bian R, Zheng J, Cheng K, Pan G. A review of agronomic and environmental properties of inorganic compounds in biochars. Curr Opin Env Sustain, 2023, 5

[53] Sun T, Li Z, Zhang Z, Wang Z, Yang S, Yang Y, Wang X, Liu S, Zhang Q, Lei T. Fast corn stalk pyrolysis and the influence of catalysts on product distribution. Bioresour Technol, 2020, 301

[54] Tang KHD. Microplastics in agricultural soils in China: Sources, impacts and solutions. Environ Pollut, 2023, 322

[55] Wang C, Wang Y, Herath HMSK. Polycyclic aromatic hydrocarbons (PAHs) in biochar – Their formation, occurrence and analysis: a review. Org Geochem, 2017, 114: 1-11

[56] Wang J, Xia K, Waigi M, Gao Y, Odinga E, Ling W, Liu J. Application of biochar to soils may result in plant contamination and human cancer risk due to exposure of polycyclic aromatic hydrocarbons. Environ Int, 2018, 121: 169-177

[57] Wang L, Li C, Jiao B, Li Q, Su H, Wang J, Jin F. Halogenated and parent polycyclic aromatic hydrocarbons in vegetables: Levels, dietary intakes, and health risk assessments. Sci Total Environ, 2018, 616: 288-295

[58] Wang RZ, Huang DL, Liu YG, Zhang C, Lai C, Zeng GM, Cheng M, Gong XM, Wan J, Luo H. Investigating the adsorption behavior and the relative distribution of Cd2+ sorption mechanisms on biochars by different feedstock. Bioresour Technol, 2018, 261: 265-271

[59] Wang X, Zhao Y, Deng J, Zhou Y, Yuan S. Study on the influence mechanism of mineral components in biochar on the adsorption of Cr(VI). Fuel, 2023, 340

[60] Wang Z, Burra KG, Lei T, Gupta AK. Co-pyrolysis of waste plastic and solid biomass for synergistic production of biofuels and chemicals-A review. Prog Energy Combust Sci, 2021, 84

[61] Wu J, Wang T, Zhang Y, Pan WP. The distribution of Pb(II)/Cd(II) adsorption mechanisms on biochars from aqueous solution: Considering the increased oxygen functional groups by HCl treatment. Bioresour Technol, 2019, 291

[62] Wu M, Wang Z, Chen G, Zhang M, Sun T, Wang Q, Zhu H, Guo S, Chen Y, Zhu Y, Lei T, Burra KG, Gupta AK. Synergistic effects and products distribution during Co-pyrolysis of biomass and plastics. J Energy Inst, 2023, 111

[63] Xie T, Yao Z, Huo L, Jia J, Zhang P, Tian L, Zhao L. Characteristics of biochar derived from the co-pyrolysis of corn stalk and mulch film waste. Energy, 2023, 262

[64] Xu C, Zhang B, Gu C, Shen C, Yin S, Aamir M, Li F. Are we underestimating the sources of microplastic pollution in terrestrial environment?. J Hazard Mater, 2020, 400

[65] Yan L, Liu Y, Zhang Y, Liu S, Wang C, Chen W, Liu C, Chen Z, Zhang Y. ZnCl₂ modified biochar derived from aerobic granular sludge for developed microporosity and enhanced adsorption to tetracycline. Bioresour Technol, 2020, 297

[66] Yang X, Ng W, Wong BSE, Baeg GH, Wang CH, Ok YS. Characterization and ecotoxicological investigation of biochar produced via slow pyrolysis: Effect of feedstock composition and pyrolysis conditions. J Hazard Mater, 2019, 365: 178-185

[67] Yao A, Liu Y, Luo X, Liu C, Tang Y, Wang S, Huang X, Qiu R. Mediation effects of different sulfur forms on solubility, uptake and accumulation of Cd in soil-paddy rice system induced by organic carbon and liming. Environ Pollut, 2021, 279

[68] Yuan JH, Xu RK, Zhang H. The forms of alkalis in the biochar produced from crop residues at different temperatures. Bioresour Technol, 2011, 102: 3488-3497

[69] Yuan S, Hong M, Li H, Ye Z, Gong H, Zhang J, Huang Q, Tan Z. Contributions and mechanisms of components in modified biochar to adsorb cadmium in aqueous solution. Sci Total Environ, 2020, 733

[70] Zhang B, Cui G, Jia W, Xia R, Lan Z, Wang Z, Jiang J, Yu Q, Dong S. Soilless cultivation technology of small-fruited watermelon hanging vine in multi-story greenhouse. Chin Melon Veg, 2017, 30: 42-4

[71] Zhang C, Nie S, Liang J, Zeng G, Wu H, Hua S, Liu J, Yuan Y, Xiao H, Deng L, Xiang H. Effects of heavy metals and soil physicochemical properties on wetland soil microbial biomass and bacterial community structure. Sci Total Environ, 2016, 557–558: 785-790

[72] Zhang D, Ng EL, Hu W, Wang H, Galaviz P, Yang H, Sun W, Li C, Ma X, Fu B, Zhao P, Zhang F, Jin S, Zhou M, Du L, Peng C, Zhang X, Xu Z, Xi B, Liu X, Sun S, Cheng Z, Jiang L, Wang Y, Gong L, Kou C, Li Y, Ma Y, Huang D, Zhu J, Yao J, Lin C, Qin S, Zhou L, He B, Chen D, Li H, Zhai L, Lei Q, Wu S, Zhang Y, Pan J, Gu B, Liu H. Plastic pollution in croplands threatens long-term food security. Global Change Biol, 2020, 26: 3356-3367

[73] Zhang J, Guo N, Ding W, Han B, Zhao M, Wang X, Wang J, Cao B, Zou G, Chen Y. Microplastic pollution and the related ecological risks of organic composts from different raw materials. J Hazard Mater, 2023, 458

[74] Zhang J, Liu J, Liu R. Effects of pyrolysis temperature and heating time on biochar obtained from the pyrolysis of straw and lignosulfonate. Bioresour Technol, 2015, 176: 288-291

[75] Zhao L, Cao X, Wang Q, Yang F, Xu S. Mineral constituents profile of biochar derived from diversified waste biomasses: implications for agricultural applications. J Environ Qual, 2013, 42: 545-552

[76] Zhou H, Wu C, Onwudili JA, Meng A, Zhang Y, Williams PT. Influence of process conditions on the formation of 2–4 ring polycyclic aromatic hydrocarbons from the pyrolysis of polyvinyl chloride. Fuel Process Technol, 2016, 144: 299-304

[77] Zhou X, Nolte MW, Mayes HB, Shanks BH, Broadbelt LJ. Experimental and mechanistic modeling of fast pyrolysis of neat glucose-based carbohydrates. 1. Experiments and development of a detailed mechanistic model. Ind Eng Chem Res, 2014, 53: 13274-13289

Funding

Jiangsu Provincial Department of Science and Technology(BE2022423)

Natural Science Foundation of Jiangsu Province(BK20231477)

Guangdong Provincial Housing and Urban–Rural Development(2023-K33-415203)