Feng Ma , Tong Zhu , Youzhao Wang , Xu Li , Mingdong Chang , Chaoyue Zhao , Zhipeng Wang , Haoyu Quan
{"title":"腐殖酸可增强吸附效果:高温堆肥产品在重金属污染修复中的应用基础","authors":"Feng Ma , Tong Zhu , Youzhao Wang , Xu Li , Mingdong Chang , Chaoyue Zhao , Zhipeng Wang , Haoyu Quan","doi":"10.1016/j.bej.2024.109415","DOIUrl":null,"url":null,"abstract":"<div><p>High-temperature composting products are rich in humic acid, which contains abundant oxygenated functional groups capable of binding to heavy metals, and thus can be considered for remediation of heavy metals pollution. However, the specific adsorption properties of high-temperature composting humic acid (HHA) remain unclear. In this study, humic acid was extracted from composting products using the acid-base extraction method, and the adsorption effect and mechanism were investigated. The experimental results showed that the maximum adsorption capacity of HHA for Cu(II), Zn(II), and Pb(II) was 69.43 mg/g, 58.55 mg/g, and 65.84 mg/g, respectively, representing an average enhancement of 21.80 % compared to conventional composting humic acid. Spectra analysis revealed that the enhanced adsorption mechanism of HHA was mainly due to a 51.63 % increase in hydroxyl and carboxyl groups, which were bound to heavy metals through chelation reactions. Furthermore, kinetics and thermodynamics studies indicated that the adsorption process was an endothermic reaction and predominantly driven by ion exchange. Additionally, the application of high-temperature composting products is economical and feasible due to their production from cheap organic waste. This study aims to demonstrate the superiority of HHA in the adsorption of heavy metals and enhance the comprehension of the adsorption mechanism, which provides an application foundation of composting products for the remediation of heavy metals pollution.</p></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":null,"pages":null},"PeriodicalIF":3.7000,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Humic acid enhances adsorption effect: Application foundation of high-temperature composting products for remediation of heavy metals pollution\",\"authors\":\"Feng Ma , Tong Zhu , Youzhao Wang , Xu Li , Mingdong Chang , Chaoyue Zhao , Zhipeng Wang , Haoyu Quan\",\"doi\":\"10.1016/j.bej.2024.109415\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>High-temperature composting products are rich in humic acid, which contains abundant oxygenated functional groups capable of binding to heavy metals, and thus can be considered for remediation of heavy metals pollution. However, the specific adsorption properties of high-temperature composting humic acid (HHA) remain unclear. In this study, humic acid was extracted from composting products using the acid-base extraction method, and the adsorption effect and mechanism were investigated. The experimental results showed that the maximum adsorption capacity of HHA for Cu(II), Zn(II), and Pb(II) was 69.43 mg/g, 58.55 mg/g, and 65.84 mg/g, respectively, representing an average enhancement of 21.80 % compared to conventional composting humic acid. Spectra analysis revealed that the enhanced adsorption mechanism of HHA was mainly due to a 51.63 % increase in hydroxyl and carboxyl groups, which were bound to heavy metals through chelation reactions. Furthermore, kinetics and thermodynamics studies indicated that the adsorption process was an endothermic reaction and predominantly driven by ion exchange. Additionally, the application of high-temperature composting products is economical and feasible due to their production from cheap organic waste. This study aims to demonstrate the superiority of HHA in the adsorption of heavy metals and enhance the comprehension of the adsorption mechanism, which provides an application foundation of composting products for the remediation of heavy metals pollution.</p></div>\",\"PeriodicalId\":8766,\"journal\":{\"name\":\"Biochemical Engineering Journal\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2024-07-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biochemical Engineering Journal\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1369703X2400202X\",\"RegionNum\":3,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BIOTECHNOLOGY & APPLIED MICROBIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biochemical Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1369703X2400202X","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
Humic acid enhances adsorption effect: Application foundation of high-temperature composting products for remediation of heavy metals pollution
High-temperature composting products are rich in humic acid, which contains abundant oxygenated functional groups capable of binding to heavy metals, and thus can be considered for remediation of heavy metals pollution. However, the specific adsorption properties of high-temperature composting humic acid (HHA) remain unclear. In this study, humic acid was extracted from composting products using the acid-base extraction method, and the adsorption effect and mechanism were investigated. The experimental results showed that the maximum adsorption capacity of HHA for Cu(II), Zn(II), and Pb(II) was 69.43 mg/g, 58.55 mg/g, and 65.84 mg/g, respectively, representing an average enhancement of 21.80 % compared to conventional composting humic acid. Spectra analysis revealed that the enhanced adsorption mechanism of HHA was mainly due to a 51.63 % increase in hydroxyl and carboxyl groups, which were bound to heavy metals through chelation reactions. Furthermore, kinetics and thermodynamics studies indicated that the adsorption process was an endothermic reaction and predominantly driven by ion exchange. Additionally, the application of high-temperature composting products is economical and feasible due to their production from cheap organic waste. This study aims to demonstrate the superiority of HHA in the adsorption of heavy metals and enhance the comprehension of the adsorption mechanism, which provides an application foundation of composting products for the remediation of heavy metals pollution.
期刊介绍:
The Biochemical Engineering Journal aims to promote progress in the crucial chemical engineering aspects of the development of biological processes associated with everything from raw materials preparation to product recovery relevant to industries as diverse as medical/healthcare, industrial biotechnology, and environmental biotechnology.
The Journal welcomes full length original research papers, short communications, and review papers* in the following research fields:
Biocatalysis (enzyme or microbial) and biotransformations, including immobilized biocatalyst preparation and kinetics
Biosensors and Biodevices including biofabrication and novel fuel cell development
Bioseparations including scale-up and protein refolding/renaturation
Environmental Bioengineering including bioconversion, bioremediation, and microbial fuel cells
Bioreactor Systems including characterization, optimization and scale-up
Bioresources and Biorefinery Engineering including biomass conversion, biofuels, bioenergy, and optimization
Industrial Biotechnology including specialty chemicals, platform chemicals and neutraceuticals
Biomaterials and Tissue Engineering including bioartificial organs, cell encapsulation, and controlled release
Cell Culture Engineering (plant, animal or insect cells) including viral vectors, monoclonal antibodies, recombinant proteins, vaccines, and secondary metabolites
Cell Therapies and Stem Cells including pluripotent, mesenchymal and hematopoietic stem cells; immunotherapies; tissue-specific differentiation; and cryopreservation
Metabolic Engineering, Systems and Synthetic Biology including OMICS, bioinformatics, in silico biology, and metabolic flux analysis
Protein Engineering including enzyme engineering and directed evolution.