Recent developments in the application of kraft pulping alkaline chemicals for lignocellulosic pretreatment: Potential beneficiation of green liquor dregs waste

Elsevier BV - Tập 306 - Trang 123225 - 2020
Yeshona Sewsynker-Sukai1,2, Anthea Naomi David1, E.B. Gueguim Kana1
1University of KwaZulu-Natal, School of Life Sciences, Pietermaritzburg, South Africa
2SMRI/NRF SARChI Research Chair in Sugarcane Biorefining, Discipline of Chemical Engineering, University of KwaZulu-Natal, Durban, South Africa

Tài liệu tham khảo

Abdel-Hamid, A.M., Solbiati, J.O., Cann, I.K., 2013. Insights into lignin degradation and its potential industrial applications.Adv. Appl. Microbiol. 82, 1-28. Academic Press. Abraham, A., Mathew, A.K., Park, H., Choi, O., Sindhu, R., Parameswaran, B., Pandey, A., Park, J.H., Sang, B.I., 2020. Pretreatment strategies for enhanced biogas production from lignocellulosic biomass.Bioresour. Technol. 122725. Agbor, 2011, Biomass pretreatment: fundamentals toward application, Biotechnol. Adv., 29, 675, 10.1016/j.biotechadv.2011.05.005 Alayoubi, 2020, Low temperature ionic liquid pretreatment of lignocellulosic biomass to enhance bioethanol yield, Renew. Energy, 145, 1808, 10.1016/j.renene.2019.07.091 Alio, 2019, Microwave-assisted Organosolv pretreatment of a sawmill mixed feedstock for bioethanol production in a wood biorefinery, Bioresour. Technol., 276, 170, 10.1016/j.biortech.2018.12.078 Alvira, 2010, Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: a review, Bioresour. Technol., 101, 4851, 10.1016/j.biortech.2009.11.093 Amiri, 2018, Pretreatment and hydrolysis of lignocellulosic wastes for butanol production: challenges and perspectives, Bioresour. Technol., 270, 702, 10.1016/j.biortech.2018.08.117 Balat, 2008, Progress in bioethanol processing, Prog. Energ. Combust. Sci., 34, 551, 10.1016/j.pecs.2007.11.001 Bai, 2009, Removal of catalyst particles from oil slurry by hydrocyclone, Sep. Sci. Technol., 44, 2067, 10.1080/01496390902880149 Bajpai, 2015 Bajpai, P., 2018. Brief description of the pulp and papermaking process. In Biotechnology for pulp and paper processing, Springer, Singapore, 9-26. Bhardwaj, N., Kumar, K., Verma, P., 2020. Microwave-assisted pretreatment using alkali metal salt in combination with orthophosphoric acid for generation of enhanced sugar and bioethanol. Biomass Convers. Bior. https://doi.org/10.1007/s13399-020-00640-1. Bhatia, S.K., Jagtap, S.S., Bedekar, A.A., Bhatia, R.K., Patel, A.K., Pant, D., Banu, R., Rao, C.V., Kim, Y., Yang, Y.H., 2020. Recent developments in pretreatment technologies on lignocellulosic biomass: effect of key parameters, technological improvements, and challenges. Bioresour. Technol., 122724. Buranov, 2008, Lignin in straw of herbaceous crops, Ind. Crops Prod., 28, 237, 10.1016/j.indcrop.2008.03.008 Cabral, 2008, Use of pulp mill inorganic wastes as alternative liming materials, Bioresour. Technol., 99, 8294, 10.1016/j.biortech.2008.03.001 Cardoso, 2009, Chemical composition and physical properties of black liquors and their effects on liquor recovery operation in Brazilian pulp mills, Fuel, 88, 756, 10.1016/j.fuel.2008.10.016 Cha, 2016, Alkaline twin-screw extrusion pretreatment of Miscanthus with recycled black liquor at the pilot scale, Fuel, 164, 322, 10.1016/j.fuel.2015.10.006 Chang, 2007, Harnessing energy from plant biomass, Curr. Opin. Chem. Biol., 11, 677, 10.1016/j.cbpa.2007.08.039 Cheng, 2010, Evaluation of high solids alkaline pretreatment of rice straw, Appl. Biochem. Biotechnol., 162, 1768, 10.1007/s12010-010-8958-4 Cheng, 2018, Miscanthus accessions distinctively accumulate cadmium for largely enhanced biomass enzymatic saccharification by increasing hemicellulose and pectin and reducing cellulose CrI and DP, Bioresour. Technol., 263, 67, 10.1016/j.biortech.2018.04.031 Chuetor, 2017, Analysis of ground rice straw with a hydro-textural approach, Powder Technol., 310, 74, 10.1016/j.powtec.2016.12.072 Chuetor, 2019, Evaluation of combined semi-humid chemo-mechanical pretreatment of lignocellulosic biomass in energy efficiency and waste generation, Bioresour. Technol., 292, 10.1016/j.biortech.2019.121966 Chohan, 2020, Valorisation of potato peel wastes for bioethanol production using simultaneous saccharification and fermentation: Process optimization and kinetic assessment, Renew. Energy, 146, 1031, 10.1016/j.renene.2019.07.042 dos Santos, 2019, Green liquor dregs and slaker grits residues characterization of a pulp and paper mill for future application on ceramic products, J. Cleaner Prod., 240 Dwyer, 2012 Elalami, 2020, Mild microwaves, ultrasonic and alkaline pretreatments for improving methane production: impact on biochemical and structural properties of olive pomace, Bioresour. Technol., 299, 10.1016/j.biortech.2019.122591 Farage, 2019, Intermediate covering of municipal solid waste landfills with alkaline grits, dregs and lime mud by-products of kraft pulp production, J. Cleaner Prod., 239, 10.1016/j.jclepro.2019.117985 Feng, 2018, Optimization of microwave pretreatment for biogas enhancement through anaerobic digestion of microalgal biomass, Period. Polytech. Chem. Eng., 63, 65, 10.3311/PPch.12334 Franks, 2006, A comparison of US and Chinese sorghum germplasm for early season cold tolerance, Crop Sci., 46, 1371, 10.2135/cropsci2005.08-0279 Gao, 2014, ABE fermentation from enzymatic hydrolysate of NaOH-pretreated corncobs, Biomass Bioenerg., 66, 110, 10.1016/j.biombioe.2014.03.002 Garrabrants, 2000, Use of a chelating agent to determine the metal availability for leaching from soils and wastes, Waste Manag., 20, 155, 10.1016/S0956-053X(99)00326-8 Ghadirian, 2015, A study of the hydrocyclone for the separation of light and heavy particles in aqueous slurry, Can. J. Chem. Eng., 93, 1667, 10.1002/cjce.22252 Giannis, 2010, Application of sequential extraction analysis to electrokinetic remediation of cadmium, nickel and zinc from contaminated soils, J. Hazard. Mater., 184, 547, 10.1016/j.jhazmat.2010.08.070 Goshadrou, 2019, Bioethanol production from Cogongrass by sequential recycling of black liquor and wastewater in a mild-alkali pretreatment, Fuel, 258, 10.1016/j.fuel.2019.116141 Gu, 2012, Green liquor pretreatment for improving enzymatic hydrolysis of corn stover, Bioresour. Technol., 124, 299, 10.1016/j.biortech.2012.08.054 Gu, 2013, Effects of green liquor pretreatment on the chemical composition and enzymatic digestibility of rice straw, Bioresour. Technol., 149, 375, 10.1016/j.biortech.2013.09.064 Gu, 2014, Synergistic contribution of hydrosulfide and carbonate anions to the β-O-4 bond cleavage of lignin model compounds in a green liquor pretreatment for enzymatic hydrolysis of lignocellulosic materials, J. Wood Sci., 60, 346, 10.1007/s10086-014-1411-5 Golmaei, 2017, Study on the filtration characteristics of green liquor dregs, Chem. Eng. J., 317, 471, 10.1016/j.cej.2017.02.104 Golmaei, 2018, Efficient separation of hazardous trace metals and improvement of the filtration properties of green liquor dregs by a hydrocyclone, J. Cleaner Prod., 183, 162, 10.1016/j.jclepro.2018.02.123 Golmaei, 2018, Extraction of hazardous metals from green liquor dregs by ethylenediaminetetraacetic acid, J. Environ. Manage., 212, 219, 10.1016/j.jenvman.2018.01.078 Harmsen, P.F.H., Huijgen, W., Bermudez, L., Bakker, R., 2010.Literature review of physical and chemical pretreatment processes for lignocellulosic biomass. Wageningen UR-Food Biobased Res. 1184. Hendriks, 2009, Pretreatments to enhance the digestibility of lignocellulosic biomass, Bioresour. Technol., 100, 10, 10.1016/j.biortech.2008.05.027 Himmel, M.E., Ding, S.Y., Johnson, D.K., Adney, W.S., Nimlos, M.R., Brady, J.W., Foust, T.D., 2007. Biomass recalcitrance: Engineering plants and enzymes for biofuels production. Science 315(5813), 804–807. Höfte, 2017, Plant cell walls, Curr. Biol., 27, R865, 10.1016/j.cub.2017.05.025 Huang, 2020, Maximizing enzymatic hydrolysis efficiency of bamboo with a mild ethanol assistant alkaline peroxide pretreatment, Bioresour. Technol., 299, 10.1016/j.biortech.2019.122568 Islam, M.K., Wang, H., Rehman, S., Dong, C., Hsu, H.Y., Lin, C.S.K., Leu, S.Y., 2019. Sustainability metrics of pretreatment processes in a waste derived lignocellulosic biomass biorefinery.Bioresour. Technol. 122558. Jagtap, 2018, Production of D-arabitol from D-xylose by the oleaginous yeast Rhodosporidium toruloides IFO0880, Appl. Microbiol. Biotechnol., 102, 143, 10.1007/s00253-017-8581-1 Jia, 2013, Use of amended tailings as mine waste cover, Waste Biomass Valor., 4, 709, 10.1007/s12649-013-9232-0 Jiang, 2016, Comparison of the substrate enzymatic digestibility and lignin structure of wheat straw stems and leaves pretreated by green liquor, Bioresour. Technol., 199, 181, 10.1016/j.biortech.2015.08.104 Jiang, D., Ge, X., Zhang, T., Chen, Z., Zhang, Z., He, C., Zhang, Q., Li, Y., 2020. Effect of alkaline pretreatment on photo-fermentative hydrogen production from Giant Reed: comparison of NaOH and Ca (OH) 2. Bioresour. Technol. 123001. Jiao, 2020, Enhancement of converting corn stalk into reducing sugar by ultrasonicassisted ammonium bicarbonate pretreatment, Bioresour. Technol., 302, 10.1016/j.biortech.2020.122878 Jin, 2010, Green liquor pretreatment of mixed hardwood for ethanol production in a repurposed kraft pulp mill, J. Wood Chem. Technol., 30, 86, 10.1080/02773810903578360 Johnson, 2005, Acid mine drainage remediation options: a review, Sci. Total Environ., 338, 3, 10.1016/j.scitotenv.2004.09.002 Jönsson, 2016, Pretreatment of lignocellulose: formation of inhibitory by-products and strategies for minimizing their effects, Bioresour. Technol., 199, 103, 10.1016/j.biortech.2015.10.009 Kabir, 2015, Experimental and economical evaluation of bioconversion of forest residues to biogas using organosolv pretreatment, Bioresour. Technol., 178, 201, 10.1016/j.biortech.2014.07.064 Kamoun, 2003, Evaluation of the performance of sulfonated esparto grass lignin as a plasticizer–water reducer for cement, Cem. Concr. Res., 33, 995, 10.1016/S0008-8846(02)01098-0 Kim, 2013, 91 Kim, 2014, Enhanced glucose yield and structural characterization of corn stover by sodium carbonate pretreatment, Bioresour. Technol., 152, 316, 10.1016/j.biortech.2013.10.069 Kim, 2016, A review on alkaline pretreatment technology for bioconversion of lignocellulosic biomass, Bioresour. Technol., 199, 42, 10.1016/j.biortech.2015.08.085 Kim, 2019, Overview of the recent advances in lignocellulose liquefaction for producing biofuels, bio-based materials and chemicals, Bioresour. Technol., 279, 373, 10.1016/j.biortech.2019.01.055 Kinnarinen, T., Golmaei, M., Jernstrom, E., H€akkinen, A., 2016. Separation, treatment and utilization of inorganic residues of chemical pulp mills. J. Cleaner Prod. 133, 953–964. Kucharska, 2018, Pretreatment of lignocellulosic materials as substrates for fermentation processes, Mol., 23, 2937, 10.3390/molecules23112937 Kumar, 2017, Recent updates on different methods of pretreatment of lignocellulosic feedstocks: a review, Bioresour. Bioprocess., 4, 7, 10.1186/s40643-017-0137-9 Kumar, 2020, Current perspective on pretreatment technologies using lignocellulosic biomass: an emerging biorefinery concept, Fuel Process. Technol., 199, 10.1016/j.fuproc.2019.106244 Kumar, 2020, Bioethanol production from sesame (Sesamum indicum L.) plant residue by combined physical, microbial and chemical pretreatments, Bioresour. Technol., 297, 10.1016/j.biortech.2019.122484 Kumari, 2018, Pretreatment of lignocellulosic wastes for biofuel production: a critical review, Renew. Sustain. Energy Review., 90, 877, 10.1016/j.rser.2018.03.111 Leštan, 2008, The use of chelating agents in the remediation of metal-contaminated soils: a review, Environ. Pollut., 153, 3, 10.1016/j.envpol.2007.11.015 Li, 2015, Catalytic transformation of lignin for the production of chemicals and fuels, Chem. Rev., 115, 11559, 10.1021/acs.chemrev.5b00155 Li, 2015, Alkali recycling from rice straw hydrolyzate by ultrafiltration: fouling mechanism and pretreatment efficiency, Ind. Eng. Chem. Res., 54, 7925, 10.1021/acs.iecr.5b01766 Lin, 2010, Ball milling pretreatment of corn stover for enhancing the efficiency of enzymatic hydrolysis, Appl. Biochem. Biotechnol., 162, 1872, 10.1007/s12010-010-8965-5 Ling, 2020, Deconstruction of oriented crystalline cellulose by novel levulinic acid based deep eutectic solvents pretreatment for improved enzymatic accessibility, Bioresour. Technol., 305, 10.1016/j.biortech.2020.123025 Liu, 2018, Comparative study of two different alkali-mechanical pretreatments of corn stover for bioethanol production, Fuel, 221, 21, 10.1016/j.fuel.2018.02.088 Loow, Y.L., Wu, T.Y., Tan, K.A., Lim, Y.S., Siow, L.F., Md. Jahim, J., Mohammad, A.W., Teoh, W.H., 2015. Recent advances in the application of inorganic salt pretreatment for transforming lignocellulosic biomass into reducing sugars. J. Agric. Food Chem. 63(38), 8349-8363. Lorentzen, 1996, Comparison of microwave-assisted and conventional leaching using EPA method 3050B, Anal. Chem., 68, 4316, 10.1021/ac960553l Łukajtis, 2018, Comparison and optimization of saccharification conditions of alkaline pre-treated triticale straw for acid and enzymatic hydrolysis followed by ethanol fermentation, Energies., 11, 639, 10.3390/en11030639 Luo, 2019, The production of furfural directly from hemicellulose in lignocellulosic biomass: a review, Catal. Today., 319, 14, 10.1016/j.cattod.2018.06.042 Mahmood, H., Moniruzzaman, M., Iqbal, T., Khan, M.J., 2019. Recent advances in the pretreatment of lignocellulosic biomass for biofuels and value-added products. Curr. Opin. Green Sustain. Chem. Mäkelä, 2012, Feasibility assessment of inter-industry solid residue utilization for soil amendment-Trace element availability and legislative issues, Resour. Conserv Recy., 67, 1, 10.1016/j.resconrec.2012.06.012 Mäkelä, 2016, Cyclone processing of green liquor dregs (GLD) with results measured and interpreted by ICP-OES and NIR spectroscopy, Chem. Eng. J., 304, 448, 10.1016/j.cej.2016.06.107 Mäkitalo, 2014, Characterization of green liquor dregs, potentially useful for prevention of the formation of acid rock drainage, Miner., 4, 330, 10.3390/min4020330 Manskinen, 2011, Total and extractable non-process elements in green liquor dregs from the chemical recovery circuit of a semi-chemical pulp mill, Chem. Eng. J., 166, 954, 10.1016/j.cej.2010.11.082 Matsushita, 2005, Preparation and evaluation of lignosulfonates as a dispersant for gypsum paste from acid hydrolysis lignin, Bioresour. Technol., 96, 465, 10.1016/j.biortech.2004.05.023 Maurya, 2015, An overview of key pretreatment processes for biological conversion of lignocellulosic biomass to bioethanol. 3, Biotech., 5, 597 McKendry, 2002, Energy production from biomass (part 1): overview of biomass, Bioresour. Technol., 83, 37, 10.1016/S0960-8524(01)00118-3 Mendes, 2017, Preparation and evaluation of hemicellulose films and their blends, Food Hydrocoll., 70, 181, 10.1016/j.foodhyd.2017.03.037 Meng, 2014, Enhancement of enzymatic saccharification of poplar by green liquor pretreatment, BioResour, 9, 3236, 10.15376/biores.9.2.3236-3247 Min, 2014, The influence of lignin–carbohydrate complexes on the cellulase-mediated saccharification I: transgenic black cottonwood (western balsam poplar, California poplar) P. trichocarpa including the xylan down-regulated and the lignin down-regulated lines, Fuel., 119, 207, 10.1016/j.fuel.2013.11.047 Modenbach, 2013 Muthuvelu, 2019, Evaluation and characterization of novel sources of sustainable lignocellulosic residues for bioethanol production using ultrasound-assisted alkaline pre-treatment, Waste Manag., 87, 368, 10.1016/j.wasman.2019.02.015 Nurmesniemi, 2005, The use of a sequential leaching procedure for heavy metal fractionation in green liquor dregs from a causticizing process at a pulp mill, Chemosphere, 61, 1475, 10.1016/j.chemosphere.2005.04.114 Nurmesniemi, 2007, A case study of waste management at the Northern Finnish pulp and paper mill complex of Stora Enso Veitsiluoto Mills, Waste Manag., 27, 1939, 10.1016/j.wasman.2006.07.017 Pellera, 2016, Microwave pretreatment of lignocellulosic agro industrial waste for methane production, J. Environ. Chem. Eng., 5, 352, 10.1016/j.jece.2016.12.009 Pham, 2018, Near theoretical saccharification of sweet sorghum bagasse using simulated green liquor pretreatment and enzymatic hydrolysis, Energy, 157, 894, 10.1016/j.energy.2018.06.005 Pola, 2019, Production of carboxylic acids from the non-lignin residue of black liquor by hydrothermal treatments, Bioresour. Technol., 284, 105, 10.1016/j.biortech.2019.03.066 Qing, 2016, A combined sodium phosphate and sodium sulfide pretreatment for enhanced enzymatic digestibility and delignification of corn stover, Bioresour. Technol., 218, 209, 10.1016/j.biortech.2016.06.063 Ragnvaldsson, 2014, A novel method for reducing acid mine drainage using green liquor dregs, Environ. Chem. Letters., 12, 443, 10.1007/s10311-014-0469-z Rajendran, 2018, Updates on the pretreatment of lignocellulosic feedstocks for bioenergy production–a review, Biomass Convers. Biorefin., 8, 471, 10.1007/s13399-017-0269-3 Rebello, 2020, Sustainability and life cycle assessments of lignocellulosic and algal pretreatments, Bioresour. Technol., 301, 10.1016/j.biortech.2019.122678 RISI, 2019. www.risiinfo.com. Accessed 12 March 2020. Saha, 2011, Comparison of separate hydrolysis and fermentation and simultaneous saccharification and fermentation processes for ethanol production from wheat straw by recombinant Escherichia coli strain FBR5, Appl. Microbiol. Biotechnol., 92, 865, 10.1007/s00253-011-3600-0 Sanchez, D.R., 2007. Recausticizing: principles and practice. Vector Process Equip. Inc. 2.1, 1-30. Saratale, 2015, Improving alkaline pretreatment method for preparation of whole rice waste biomass feedstock and bioethanol production, RSC Adv., 5, 97171, 10.1039/C5RA17797A Saratale, 2016, Reutilization of green liquor chemicals for pretreatment of whole rice waste biomass and its application to 2, 3-butanediol production, Bioresour. Technol., 205, 90, 10.1016/j.biortech.2016.01.028 Sarawan, 2019, Optimized activated charcoal detoxification of acid-pretreated lignocellulosic substrate and assessment for bioethanol production, Bioresour. Technol., 286, 10.1016/j.biortech.2019.121403 Sarsaiya, 2019, Microbial dynamics for lignocellulosic waste bioconversion and its importance with modern circular economy, challenges and future perspectives, Bioresour. Technol., 291, 10.1016/j.biortech.2019.121905 Sartz, L., Hamilton, I., Mácsik, J., Maurice, C., Sädbom, S., Westin, G., Bäckström, M., 2017. Green liquor dregs from pulp and paper industry used in mining waste management: a symbiosis project (GLAD) between two Swedish base industries. Scheller, H.V., Ulvskov, P., 2010. Hemicelluloses.Annu. Rev. Plant. Biol.61. Sebogodi, 2019, Beneficiation of pulp mill waste green liquor dregs: applications in treatment of acid mine drainage as new disposal solution in South Africa, J. Cleaner Prod. Sena-Martins, 2008, Eco-friendly new products from enzymatically modified industrial lignins, Ind. Crop Prod., 27, 189, 10.1016/j.indcrop.2007.07.016 Sewsynker-Sukai, 2018, Microwave-assisted alkalic salt pretreatment of corn cob wastes: Process optimization for improved sugar recovery, Ind. Crops Prod., 125, 284, 10.1016/j.indcrop.2018.08.086 Sewsynker-Sukai, 2018, Simultaneous saccharification and bioethanol production from corn cobs: process optimization and kinetic studies, Bioresour. Technol., 262, 32, 10.1016/j.biortech.2018.04.056 Sewsynker-Sukai, 2018, Development of a sequential alkalic salt and dilute acid pretreatment for enhanced sugar recovery from corn cobs, Energy Conver. Manag., 160, 22, 10.1016/j.enconman.2018.01.024 Simão, 2018, Wastes from pulp and paper mills-a review of generation and recycling alternatives, Cerâmica., 64, 443, 10.1590/0366-69132018643712414 Sindhu, 2016, Biological pretreatment of lignocellulosic biomass–an overview, Bioresour. Technol., 199, 76, 10.1016/j.biortech.2015.08.030 Singhvi, 2014, Lignocellulose processing: a current challenge, RSC Adv., 4, 8271, 10.1039/c3ra46112b Sjöström, 1983, 113 Sjöström, 1993 Sorn, 2019, Effect of microwave-assisted ionic liquid/acidic ionic liquid pretreatment on the morphology, structure, and enhanced delignification of rice straw, Bioresour. Technol., 293, 10.1016/j.biortech.2019.121929 Sun, 2002, Hydrolysis of lignocellulosic materials for ethanol production: a review, Bioresour. Technol., 83, 1, 10.1016/S0960-8524(01)00212-7 Syawala, 2013, Production of bioethanol from corncob and sugarcane bagasse with hydrolysis process using Aspergillus niger and Trichoderma viride, J. Environ. Sci. Toxicol. Food Technol., 5, 49 Tchounwou, 2012, Heavy metal toxicity and the environment, 133 Tikka, 2008 Tu, Y., Wang, L., Xia, T., Sun, D., Zhou, S., Wang, Y., L, Y., Zhang, H., Zhang, T., Madadi, M., Peng, L., 2017. Mild chemical pretreatments are sufficient for complete saccharification of steam-exploded residues and high ethanol production in desirable wheat accessions. Bioresour. Technol. 243, 319–326. USEPA (United States Environmental Protection Agency), 1995. Compilation of Air Pollutant Emission Factors, Vol 1: Stationary Point and Area Sources AP–42. Usmani, Z., Sharma, M., Gupta, P., Karpichev, Y., Gathergood, N., Bhat, R., Gupta, V.K., 2020. Ionic liquid based pretreatment of lignocellulosic biomass for enhanced bioconversion. https://doi.org/10.1016/j.biortech.2020.123003. Wan, 2011, Liquid hot water and alkaline pretreatment of soybean straw for improving cellulose digestibility, Bioresour Technol., 102, 6254, 10.1016/j.biortech.2011.02.075 Wang, 2016, Highly efficient conversion of sugarcane bagasse pretreated with liquid hot water into ethanol at high solid loading, Int. J. Green Energy., 13, 298, 10.1080/15435075.2014.961467 Wei, 2011, Elucidating the role of ferrous ion cocatalyst in enhancing dilute acid pretreatment of lignocellulosic biomass, Biotechnol. Biofuels, 4, 48, 10.1186/1754-6834-4-48 Woiciechowski, A.L., Neto, C.J.D., Vandenberghe, L.P.D., Neto, D.P.D., Sydney, A.C.N., Letti, L.A.J., Karp, S.G., Torres, L.A.Z., Soccol, C.R., 2020. Lignocellulosic biomass: acid and alkaline pretreatments and their effects on biomass recalcitrance – Conventional processing and recent advances. https://doi.org/10.1016/j.biortech.2020.122848. Wu, 2012, Effect of additives on polysaccharide retention in green liquor pretreatment of loblolly pine for enzymatic hydrolysis, J. Wood Chem. Technol., 32, 317, 10.1080/02773813.2012.678959 Wu, 2019, Novel crude glycerol pretreatment for selective saccharification of sugarcane bagasse via fast pyrolysis, Bioresour. Technol., 294, 10.1016/j.biortech.2019.122094 Xia, 2020, Combined liquid hot water with sodium carbonate-oxygen pretreatment to improve enzymatic saccharification of reed, Bioresour. Technol., 297, 10.1016/j.biortech.2019.122498 Xu, 2012, Pretreatment of corn stover for sugar production with switchgrass-derived black liquor, Bioresour. Technol., 111, 255, 10.1016/j.biortech.2012.02.006 Xu, 2017, Enhancing enzymatic hydrolysis of corn cob, corn stover and sorghum stalk by dilute aqueous ammonia combined with ultrasonic pretreatment, Ind. Crop. Prod., 109, 220, 10.1016/j.indcrop.2017.08.038 Xu, 2019, Effect of crystallinity on pretreatment and enzymatic hydrolysis of lignocellulosic biomass based on multivariate analysis, Bioresour. Technol., 279, 271, 10.1016/j.biortech.2018.12.096 Yan, X., Cheng, J.R., Wang, Y.T., Zhu, M. J., 2020. Enhanced lignin removal and enzymolysis efficiency of grass waste by hydrogen peroxide synergized dilute alkali pretreatment. Bioresour. Technol. 122756. Yoo, 2017, Ionic liquids: Promising green solvents for lignocellulosic biomass utilization, Curr. Opin. Green Sustain. Chem., 5, 5, 10.1016/j.cogsc.2017.03.003 Yu, Z., 2012. Fundamental Factors Affecting Enzymatic Hydrolysis of Lignocellulosic Biomass. PhD Thesis. 1–213. Yu, 2011, The effect of metal salts on the decomposition of sweet sorghum baggase in flow-through liquid hot water, Bioresour. Technol., 102, 3445, 10.1016/j.biortech.2010.10.084 Yu, 2013, Improvement of the enzymatic hydrolysis of furfural residues by pretreatment with combined green liquor and hydrogen peroxide, Bioresour. Technol., 147, 29, 10.1016/j.biortech.2013.08.013 Yu, 2014, Improvement of the enzymatic hydrolysis of furfural residues by pretreatment with combined green liquor and ethanol organosolv, Bioresour. Technol., 167, 46, 10.1016/j.biortech.2014.05.111 Yuan, 2018, Alkaline organosolv pretreatment of corn stover for enhancing the enzymatic digestibility, Bioresour. Technol., 265, 464, 10.1016/j.biortech.2018.06.038 Zabed, 2019, Recent advances in biological pretreatment of microalgae and lignocellulosic biomass for biofuel production, Renew. Sustain. Energy Review., 105, 105, 10.1016/j.rser.2019.01.048 Zhang, 2010, Influence of EDTA washing on the species and mobility of heavy metals residual in soils, J. Hazard. Mater., 173, 369, 10.1016/j.jhazmat.2009.08.087 Zhang, 2019, Overcoming biomass recalcitrance by synergistic pretreatment of mechanical activation and metal salt for enhancing enzymatic conversion of lignocellulose, Biotechnol. Biofuels, 12, 12, 10.1186/s13068-019-1354-6 Zhao, C., Shao, Q., Chundawat, S.P., 2019. Recent advances on ammonia-based pretreatments of lignocellulosic biomass. Bioresour. Technol. 122446. Zheng, 2018, Pretreatment of wheat straw leads to structural changes and improved enzymatic hydrolysis, Sci. Rep., 8, 1321, 10.1038/s41598-018-19517-5 Zhou, 2016, Kraft GL-ethanol pretreatment on sugarcane bagasse for effective enzymatic hydrolysis, Ind. Crops. Prod., 90, 100, 10.1016/j.indcrop.2016.06.026 Zhou, 2017, Enhancement of enzymatic hydrolysis of sugarcane bagasse by pretreatment combined green liquor and sulfite, Fuel, 203, 707, 10.1016/j.fuel.2017.05.020 Zhu, 2015, Structural changes in lignin during integrated process of steam explosion followed by alkaline hydrogen peroxide of Eucommia ulmoides Oliver and its effect on enzymatic hydrolysis, Appl. Energy, 158, 233, 10.1016/j.apenergy.2015.08.085