Biochemical Engineering Journal最新文献_第6页

Research on the removal of fluoride from low-concentration fluorine-containing industrial wastewater using adsorption methods

IF 3.7 3区生物学

Biochemical Engineering Journal Pub Date : 2025-02-10 DOI: 10.1016/j.bej.2025.109668

Benfu Luo , Yuhang Liu , Yujing Yan , Haixing He , Jie Yu , Qiang Chen

{"title":"Research on the removal of fluoride from low-concentration fluorine-containing industrial wastewater using adsorption methods","authors":"Benfu Luo , Yuhang Liu , Yujing Yan , Haixing He , Jie Yu , Qiang Chen","doi":"10.1016/j.bej.2025.109668","DOIUrl":"10.1016/j.bej.2025.109668","url":null,"abstract":"<div><div>To address the need for deep fluoride removal of low-concentration fluorine-containing industrial wastewater (2–10 mg/L) to below 1.5 mg/L in centralized industrial wastewater treatment plants, a study was conducted using adsorption methods. The adsorption performance and influencing factors of four adsorbent materials—active alumina (AA), hydroxyapatite (HAP), fly ash (FA), and bone char (BC)—were investigated. The results indicate that positioning the adsorption fluoride removal filter at the tail end of the industrial wastewater treatment process yields a fluoride removal efficiency that is over 10 % higher compared to placing it at the front end. The investigation into the adsorption effectiveness of the four adsorbents revealed that HAP dosage only needs 2 g to reduce 250 ml fluorinated industrial wastewater containing 2–10 mg/L to the target concentration of 1.5 mg/L or less. Moreover, the adsorption process requires only 30 minutes. From the perspective of adsorption performance, HAP is the most effective, followed by AA. However, considering the cost of these adsorbents, AA is more suitable as an adsorbent for treating low-concentration fluorine-containing wastewater. The findings of this study can serve as a valuable reference for the process design of deep adsorption fluoride removal in projects involving fluorine-containing industrial wastewater.</div></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":"216 ","pages":"Article 109668"},"PeriodicalIF":3.7,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular modification and application of the key enzyme CYP109E1-H in 25-hydroxyvitamin D3 biosynthesis

IF 3.7 3区生物学

Biochemical Engineering Journal Pub Date : 2025-02-10 DOI: 10.1016/j.bej.2025.109667

Fan He , Yulin He , Jingyi Zhou , Junheng Gou , Qiaoqiao Ma , Xiaomei Zhang , Jinsong Shi , Zhenghong Xu , Hui Li

{"title":"Molecular modification and application of the key enzyme CYP109E1-H in 25-hydroxyvitamin D3 biosynthesis","authors":"Fan He , Yulin He , Jingyi Zhou , Junheng Gou , Qiaoqiao Ma , Xiaomei Zhang , Jinsong Shi , Zhenghong Xu , Hui Li","doi":"10.1016/j.bej.2025.109667","DOIUrl":"10.1016/j.bej.2025.109667","url":null,"abstract":"<div><div>25-Hydroxyvitamin D<sub>3</sub> (25-OH-VD<sub>3</sub>) is one of the primary active forms of vitamin D<sub>3</sub> (VD<sub>3</sub>) in the human body and has significant medicinal value. The traditional organic synthesis method of 25-OH-VD<sub>3</sub> is very complex and the yield is very low. Biocatalysis can simplify the synthesis steps, with relatively mild reaction conditions and easy access to raw materials. Therefore, the production of 25-OH-VD<sub>3</sub> through microorganisms has been considered a promising alternative to chemical synthesis. However, the recombinant expression system demonstrated poor catalytic activity and low substrate conversion efficiency, hindering the further application of 25-OH-VD<sub>3</sub> biological synthesis. The purpose of this study is to improve the efficiency of biotransformation and increase the production of 25-OH-VD<sub>3</sub> by modifying VD<sub>3</sub> hydroxylase. Initially, the positive mutant CYP109E1<sup>I85F</sup>-H was obtained through saturation mutation. The concentration of 25-OH-VD<sub>3</sub> was increased to 1.57 mg/L, which was 1.9 times that of the wild-type (WT) strain. Then, the electron transfer engineered strain WB600-pMA5-CYP109E1<sup>I85F</sup>-H-Fdx-FdR was constructed to further improve the efficiency of electron transfer, with a 14.5 % increase in product concentration. Finally, 14.53 mg/L of 25-OH-VD<sub>3</sub> was achieved in optimized SR medium supplemented with dimethyl sulfoxide (DMSO) as co-solvent. The combination of semi-rational molecular modification strategy and optimization of the catalytic system increased the production of 25-OH-VD<sub>3</sub> by 16.9 times compared with the WT strain, providing guidance for CYP109E1-H microbial synthesis of 25-OH-VD<sub>3</sub>.</div></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":"218 ","pages":"Article 109667"},"PeriodicalIF":3.7,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced degradation of petroleum hydrocarbons by immobilizing Acinetobacter

IF 3.7 3区生物学

Biochemical Engineering Journal Pub Date : 2025-02-07 DOI: 10.1016/j.bej.2025.109666

Jienan Li , Hua Zhang , Kuixi Mei , Leni Sun , Li Wang , Changhai Liang

{"title":"Enhanced degradation of petroleum hydrocarbons by immobilizing Acinetobacter","authors":"Jienan Li , Hua Zhang , Kuixi Mei , Leni Sun , Li Wang , Changhai Liang","doi":"10.1016/j.bej.2025.109666","DOIUrl":"10.1016/j.bej.2025.109666","url":null,"abstract":"<div><div>The highly efficient elimination of petroleum pollution is essential for addressing environmental issues and social sustainability. A hydrocarbon-degrading bacterium SHC is isolated from petroleum-contaminated soil in Chengdu, China, to augment bioremediation efforts against crude oil contamination. According to the analysis of 16S rDNA sequences, strain SHC was identified as <em>Acinetobacter</em>. The degradation rate of 2 g/L crude oil by free bacterium reached 30 % within 7 days. Through the analysis of hydrocarbon biodegradation, strain SHC was found to biodegrade more long-chain n-alkanes (C19–C29). Further, we delve into utilizing agar as a microbial immobilization matrix, supplemented with nutrient salts and oil-absorbing materials, to foster the growth and activity of the bacterium in challenging environments characterized by high salinity and acidity. In the final immobilization bacterium, the degradation rate of 3 % salt concentration reaches 22 %, the degradation rate of 5 g/L crude oil is 45 %, and the degradation rate at a pH of 10 is 74 %, and was 59 % more effective than the free bacterium on the removal of crude oil under the same conditions. These findings strongly indicate that encapsulating <em>Acinetobacter</em> SHC can protect them against extreme conditions, bolstering bioremediation endeavors.</div></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":"217 ","pages":"Article 109666"},"PeriodicalIF":3.7,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advancements of the Vibrio coralliilyticus eDNA detection based on Co-Fe PBA-assisted biosensors for the rapid coral-disease warning

IF 3.7 3区生物学

Biochemical Engineering Journal Pub Date : 2025-02-06 DOI: 10.1016/j.bej.2025.109662

Yibo Zhang , Hongjie Liu , Shaopeng Wang , Hao Fu , Yuanyu Xie , Chaoxin Zhang , Man Zhang , Jie Lu , Liwei Wang , Kefu Yu

{"title":"Advancements of the Vibrio coralliilyticus eDNA detection based on Co-Fe PBA-assisted biosensors for the rapid coral-disease warning","authors":"Yibo Zhang , Hongjie Liu , Shaopeng Wang , Hao Fu , Yuanyu Xie , Chaoxin Zhang , Man Zhang , Jie Lu , Liwei Wang , Kefu Yu","doi":"10.1016/j.bej.2025.109662","DOIUrl":"10.1016/j.bej.2025.109662","url":null,"abstract":"<div><div><em>Vibrio coralliilyticus</em> (<em>V. coralliilyticus</em>) can lead to severe coral diseases and is one of the main causes of coral bleaching. However, there is still a lack of convenient, and non-invasive detection methods for <em>V. coralliilyticus</em>, which brings inconvenience to coral health management. Here, a portable electrochemical biosensor was developed based on environmental DNA (eDNA) and cobalt-iron Prussian Blue Analogue (Co-Fe PBA) electrode material for detecting <em>V. coralliilyticus</em>. Notably, this sensor identified and quantified <em>V. coralliilyticus</em> eDNA in water through specific DNA probes, overcoming the previously reported complex and destructive pretreatment processes. Additionally, thanks to the high specific surface area of Co-Fe PBA, which provided abundant sites for probe anchoring, the constructed portable biosensor exhibited excellent detection performances. Specifically, the detection limit was as low as 19.0 fM, and the linear range was from 100 fM to 100 nM. In subsequent coral infection experiments, the eDNA of <em>V. coralliilyticus</em> increased on the eve of coral bleaching. Based on this change, the occurrence of coral bleaching was successfully predicted. Therefore, this portable biosensor is suitable for dynamic monitoring of <em>V. coralliilyticus</em>, helping to reveal the potential risks to coral health and providing a reference for ecological decision-making for coral reef protection.</div></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":"216 ","pages":"Article 109662"},"PeriodicalIF":3.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing waste management and nutrient recovery: Preparation of N slow-release fertilizer using sewage sludge and its release behavior, effects on ryegrass (Lolium perenne L.) growth

IF 3.7 3区生物学

Biochemical Engineering Journal Pub Date : 2025-02-06 DOI: 10.1016/j.bej.2025.109664

Diannan Huang , Yu Gao , Li Zhang , Rongxin Zhang , Yuhan Wu , Hao Guan , Di Luo

{"title":"Enhancing waste management and nutrient recovery: Preparation of N slow-release fertilizer using sewage sludge and its release behavior, effects on ryegrass (Lolium perenne L.) growth","authors":"Diannan Huang , Yu Gao , Li Zhang , Rongxin Zhang , Yuhan Wu , Hao Guan , Di Luo","doi":"10.1016/j.bej.2025.109664","DOIUrl":"10.1016/j.bej.2025.109664","url":null,"abstract":"<div><div>Efficient recovery and utilization of the nitrogen(N) contained in sewage sludge (SS) is a key consideration in the treatment of SS. In this study, a novel sludge hydrogel sphere slow-release N fertilizer was prepared based on the N-rich property of SS, using SS as a substrate and Fe<sup>3+</sup>(extracted from drinking water sludge (DWTS)), CMC, and ATP synergistically constructed as an encapsulated skeletal material. Based on the comprehensive consideration of hydrogel sphere formation performance, mechanical strength and encapsulation effect, the optimum mass ratio for the preparation of sludge hydrogel sphere was: M<sub>SS</sub>: M<sub>CMC</sub>: M<sub>HATP</sub>: M<sub>DWTS</sub> = 300: 4: 6:0.07; the concentration of HCl-modified ATP was 2.25 mol/L, and the number of coating layers was 1. The cumulative N release rates increased gradually with increasing soil moisture content, temperature and pH. The Korsmeyer-Peppas model can well describe the N release kinetic from sludge hydrogel spheres (R<sup>2</sup> = 0.9509). Potting experiments showed that the sludge hydrogel spheres not only promoted ryegrass growth, but also improved plant quality. The N retention mechanism of sludge hydrogel spheres mainly includes the physical barrier of coating and the adsorption of NH<sub>4</sub><sup>+</sup> by electronegative electrostatic gravitational force of hydrogel spheres. And the degradation and rupture of the coating in the later stage guaranteed the N release. This study provides new ideas for the preparation of slow-release fertilizers from solid waste resource utilization.</div></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":"216 ","pages":"Article 109664"},"PeriodicalIF":3.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel aquaculture wastewater treatment by an efficient nitrogen-removing bacterium capable of simultaneous nitrification and denitrification

IF 3.7 3区生物学

Biochemical Engineering Journal Pub Date : 2025-02-05 DOI: 10.1016/j.bej.2025.109663

Yuhang Song , Lingmin Zhao , Lixing Huang , Yingxue Qin , Jiaonan Zhang , Jiaoling Zhang , Qingpi Yan

{"title":"Novel aquaculture wastewater treatment by an efficient nitrogen-removing bacterium capable of simultaneous nitrification and denitrification","authors":"Yuhang Song , Lingmin Zhao , Lixing Huang , Yingxue Qin , Jiaonan Zhang , Jiaoling Zhang , Qingpi Yan","doi":"10.1016/j.bej.2025.109663","DOIUrl":"10.1016/j.bej.2025.109663","url":null,"abstract":"<div><div>Nitrogen pollution from aquaculture effluent poses a severe threat to aquatic ecosystems, necessitating efficient treatment solutions. In this study, a highly effective nitrogen-removing bacterium, designated SA20, was isolated from an aquaculture wastewater treatment system and identified as <em>Paracoccus</em> sp. Safety evaluations confirmed its non-hemolytic nature and broad antibiotic sensitivity, indicating its potential for safe application. Under optimized conditions (C/N ratio 16, 30 ℃, 140 rpm), the strain demonstrated complete removal of ammonium and nitrite, with over 95 % nitrate removal within 24 h. Nitrogen balance analysis revealed that approximately 70–80 % of total nitrogen was converted to gaseous form through denitrification, while 20–30 % was assimilated into biomass. When applied to actual aquaculture wastewater, SA20 achieved significant removal of various nitrogen forms, with total nitrogen removal exceeding 65 %. These findings demonstrate the potential of strain SA20 for practical application in aquaculture wastewater treatment, offering a promising biotechnology solution for sustainable aquaculture development.</div></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":"216 ","pages":"Article 109663"},"PeriodicalIF":3.7,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143335202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of defective UiO-67 for CA immobilization to improve the ability of CO2 capture and conversion

IF 3.7 3区生物学

Biochemical Engineering Journal Pub Date : 2025-01-31 DOI: 10.1016/j.bej.2025.109661

Rui Zhao, Wenhui Yang, Pengyan Yang, Yunhan Cao, Fenghuan Wang

{"title":"Preparation of defective UiO-67 for CA immobilization to improve the ability of CO2 capture and conversion","authors":"Rui Zhao, Wenhui Yang, Pengyan Yang, Yunhan Cao, Fenghuan Wang","doi":"10.1016/j.bej.2025.109661","DOIUrl":"10.1016/j.bej.2025.109661","url":null,"abstract":"<div><div>Carbonic anhydrase (CA) has been suggested as a biocatalyst for carbon dioxide capture since it could effectively catalyze the hydration of carbon dioxide. Metal-organic frameworks (MOFs) have attracted significant attention in the development of immobilized enzyme carriers due to their pore tunability and excellent stability. In this study, UiO-67 materials with varying defect degrees (DUiO-67) were prepared using the organic linker missing method to enhance the catalytic performance. The results indicated that both the defect degree and the pore size of DUiO-67 materials decreased with an increase in acetic acid equivalent. After CA immobilization, all DUiO-67 materials exhibited excellent thermal, pH and recycling stability. CA@DUiO-67–25 showed higher enzyme catalytic activity and conversion ability than the other materials. After 10 cycles, CA@DUiO-67–25 retained 57 % of its initial conversion capacity. The construction of defective MOFs provides a promising new strategy for CA immobilization to achieve the catalytic conversion of CO<sub>2</sub>.</div></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":"216 ","pages":"Article 109661"},"PeriodicalIF":3.7,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly selective detection of heavy metal ions in food and water using a 5-BHAHS@NC/MnO2-based electrochemical sensor

IF 3.7 3区生物学

Biochemical Engineering Journal Pub Date : 2025-01-30 DOI: 10.1016/j.bej.2025.109660

Amany El Sikaily , Doaa Gh. Ghoniem , Omar Ramadan , Eslam M. El-Nahrery , Ahmed Shahat , Rabeay Y.A. Hassan

{"title":"Highly selective detection of heavy metal ions in food and water using a 5-BHAHS@NC/MnO2-based electrochemical sensor","authors":"Amany El Sikaily , Doaa Gh. Ghoniem , Omar Ramadan , Eslam M. El-Nahrery , Ahmed Shahat , Rabeay Y.A. Hassan","doi":"10.1016/j.bej.2025.109660","DOIUrl":"10.1016/j.bej.2025.109660","url":null,"abstract":"<div><div>Human health and food safety face significant risks due to heavy metal contamination in food and water, as these metals can be accumulated to exhibit high toxicity even at low concentrations. Thus, electrochemical sensors, specifically voltammetry, provide a promising approach for simultaneous detection of heavy metal ions. In this study, a voltammetric assay was developed by directly immobilizing a newly synthesized ionophore structure, (<em>E</em>)-4-((5-bromo-2-hydroxybenzylidene) amino)-3-hydroxynaphthalene-1-sulfonic acid) (5-BHAHS), onto nano-cellulose (NC) synthesized via green methods, along with MnO<sub>2</sub> nanoparticles. The sensing material and its parent nano-cellulose base were characterized using HR-TEM, FT-IR, FE-SEM, XPS, and XRD. Subsequently, various factors influencing metal ion detection were studied and optimized, resulting in detection limits of 0.12 µM for both Hg²⁺ and Cd²⁺, and 0.03 µM for Pb²⁺. Optimal conditions for accumulation time, electrolyte pH, scan rate, selectivity, and sensitivity were determined to achieve rapid simultaneous detection at low concentrations. The 5-BHAHS@NC/MnO<sub>2</sub>-based sensor proved to be a robust tool for the simultaneous detecting Hg²⁺, Cd²⁺, and Pb²⁺ ions in tap water, wastewater, and fish samples demonstrating high selectivity. Notably, the sensitivity achieved by the 5-BHAHS@NC/MnO₂ sensor is higher than that reported in previous studies, highlighting its superior performance, non-toxicity feedback and potential for practical applications in food safety and environmental monitoring.</div></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":"216 ","pages":"Article 109660"},"PeriodicalIF":3.7,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

One-step solvothermal preparation of Fe3O4@HA magnetic nanomicrospheres for simultaneous removal of tetracycline antibiotics

IF 3.7 3区生物学

Biochemical Engineering Journal Pub Date : 2025-01-29 DOI: 10.1016/j.bej.2025.109651

Sisi Li , Shuang Li , Xiang Li , Xiaodan Zeng , Jie Chen , Zhigang Liu , Shihua Yu , Junjing Hao

{"title":"One-step solvothermal preparation of Fe3O4@HA magnetic nanomicrospheres for simultaneous removal of tetracycline antibiotics","authors":"Sisi Li , Shuang Li , Xiang Li , Xiaodan Zeng , Jie Chen , Zhigang Liu , Shihua Yu , Junjing Hao","doi":"10.1016/j.bej.2025.109651","DOIUrl":"10.1016/j.bej.2025.109651","url":null,"abstract":"<div><div>Humic acid (HA) is a naturally biomass, that is considered as an ideal adsorbent material due to the abundance of functional groups on its surface. For this purpose, the highly dispersible magnetic humic acid (Fe<sub>3</sub>O<sub>4</sub>@HA) has been prepared by one-step solvothermal method. The developed Fe<sub>3</sub>O<sub>4</sub>@HA not only has a strong separation, but also can simultaneously adsorb tetracycline antibiotics (tetracycline, chlortetracycline hydrochloride and doxycycline hydrochloride). Batch sorption experiments convinced that the maximum tetracycline antibiotics adsorption capacity of Fe<sub>3</sub>O<sub>4</sub>@HA is 45.58, 86.87, and 88.46 mg/g and the largest removal of 94.5 %, 96.3 %, and 97.4 %, fast equilibrium time of 60 min. Meanwhile, the adsorption process is agreement with pseudo-second-order adsorption kinetics and Langmuir adsorption isotherm model. Thermodynamic data indicate that this adsorption is endothermic and spontaneous. Moreover, the designed Fe<sub>3</sub>O<sub>4</sub>@HA with the characteristic of anti-interference capabilities, a variety of water-matrix suitability and maintaining at least 80 % tetracycline antibiotics removal after five adsorption cycles. Finally, the adsorption mechanisms are explored by XPS and FT-IR analysis, which show that mainly involve electrostatic adsorption; hydrogen bonding, π–π, oxygen-containing functional group interactions; and physical adsorption on the surface. In conclusion, Fe<sub>3</sub>O<sub>4</sub>@HA demonstrates considerable promise as an adsorbent for treating antibiotic-contaminated water.</div></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":"216 ","pages":"Article 109651"},"PeriodicalIF":3.7,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143335201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance and phosphorus release of an anaerobic co-digestion of excess sludge and food waste containing garlic at varying substrate ratio

IF 3.7 3区生物学

Biochemical Engineering Journal Pub Date : 2025-01-29 DOI: 10.1016/j.bej.2025.109659

Lixin Wei , Yuchen Wang , Yuan He , Guangrong Zhou , Shutong Dong , Yongan Chen , Qing Wang , Yuxiang Lu , Chengyuan Su

{"title":"Performance and phosphorus release of an anaerobic co-digestion of excess sludge and food waste containing garlic at varying substrate ratio","authors":"Lixin Wei , Yuchen Wang , Yuan He , Guangrong Zhou , Shutong Dong , Yongan Chen , Qing Wang , Yuxiang Lu , Chengyuan Su","doi":"10.1016/j.bej.2025.109659","DOIUrl":"10.1016/j.bej.2025.109659","url":null,"abstract":"<div><div>The effects of different ratios of food waste (FW) containing garlic and excess sludge (ES) on the anaerobic co-digestion (AcoD) process were investigated. This was done by establishing a sequencing batch anaerobic digester and analyzing phosphorus release patterns, microbial community structure and gene function in the AcoD system with 1:1, 1:2, 1:4, and 1:8 ratio of FW to ES. The highest phosphine (PH<sub>3</sub>) gas output of 1619.99 mg/m<sup>3</sup> was observed when FW:ES was 1:1. The relative abundance of <em>Methanothrix</em> increased from 7.99 % to 9.36 % with variation the ratio of FW:ES from 1:4–1:8. The contents of <em>phnD</em> and <em>phnE</em> genes in the ratio of 1:4 FW:ES group were the highest among all experimental groups, with 0.0010 % and 0.0018 %, respectively. In addition, the abundance of functional genes responsible for encoding acetate kinase in the 1:4 FW:ES group increased by 152.96 % relative to the control group. Tests determined the optimal FW to ES ratios to achieve 1:4 and 1:8, and provided suitable operating conditions and references for the subsequent AcoD research.</div></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":"216 ","pages":"Article 109659"},"PeriodicalIF":3.7,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0