Sustainable Chemistry for the Environment最新文献_第7页

Advancements in polypropylene biodegradation: A comprehensive microbial and analytical review 聚丙烯生物降解研究进展：微生物学和分析学综述

Sustainable Chemistry for the Environment Pub Date : 2025-03-01 DOI: 10.1016/j.scenv.2025.100213

Pankaj R. Sutkar, Vinayak P. Dhulap

{"title":"Advancements in polypropylene biodegradation: A comprehensive microbial and analytical review","authors":"Pankaj R. Sutkar, Vinayak P. Dhulap","doi":"10.1016/j.scenv.2025.100213","DOIUrl":"10.1016/j.scenv.2025.100213","url":null,"abstract":"<div><div>Plastic is an artificial material formed of polymers with a high molecular weight. The rise in production and use of plastic products is emerging as a significant environmental issue. With the global production of plastics surpassing 380 million tons annually, the ubiquity and versatility of polypropylene (PP) stand out as significant contributors. It is also known as a packaging plastic because of its user-friendly applications. The properties of PP, such as durability, low cost, and wide uses, create a major environmental threat to soil, air, and water. The ability of microorganisms to degrade plastics is a promising eco-friendly technique for the upcoming days. This review highlights microbes, including bacteria and fungi, insects and larvae which have found the potential ability for biodegradation of polypropylene. It focuses on promising materials and analytical methods, such as physical, spectroscopic, and thermal. These methods include Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Differential Scanning Calorimetry(DSC), Thermal Gravimetric Analysis (TGA), Infrared Spectroscopy (IR), Nuclear Magnetic Resonance(NMR), Gas Chromatography - Mass Spectrometry(GC-MS),Fourier Transform Infrared Spectroscopy (FTIR), and X-ray Diffraction(XRD).It includes recent experimental findings and mechanisms for polypropylene biodegradation and future recommendations. Through a comprehensive examination of PP plastics, this review provides valuable insights into their production, applications, biodegradation and environmental implications. Understanding the complexity of PP allows us to support informed control and promote sustainable plastic usage and waste management methods.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"9 ","pages":"Article 100213"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of BTEX species at Texas Commission on Environmental Quality (TCEQ) Continuous Ambient Monitoring Station (CAMS) sites in Houston, Texas, USA during 2018 2018年美国德克萨斯州环境质量委员会（TCEQ）连续环境监测站（CAMS）站点BTEX物种特征

Sustainable Chemistry for the Environment Pub Date : 2025-03-01 DOI: 10.1016/j.scenv.2025.100227

Amit U. Raysoni , Sai Deepak Pinakana , August Luna , Esmeralda Mendez , Gabriel Ibarra-Mejia

{"title":"Characterization of BTEX species at Texas Commission on Environmental Quality (TCEQ) Continuous Ambient Monitoring Station (CAMS) sites in Houston, Texas, USA during 2018","authors":"Amit U. Raysoni , Sai Deepak Pinakana , August Luna , Esmeralda Mendez , Gabriel Ibarra-Mejia","doi":"10.1016/j.scenv.2025.100227","DOIUrl":"10.1016/j.scenv.2025.100227","url":null,"abstract":"<div><div>Volatile Organic Compounds (VOCs) in the atmosphere negatively impact human and environmental health. Various sources of VOCs include gasoline evaporation, solvent usage, traffic, etc. A dataset 1-year (2018) consisting of BTEX (benzene, toluene, ethylbenzene, and m, p, and o-xylenes) concentrations in Houston, Texas, was analyzed to understand the spatial trends and sources of BTEX in the region. This study assesses 24-hour data concentrations from the Continuous Ambient Monitoring Station (CAMS) operated by the TCEQ Texas Commission on Environmental Quality (TCEQ) in Houston. Spatial variations of the BTEX species across the various TCEQ CAMS sites were determined using multiple statistical analyses, including Coefficients of Divergence (COD), Spearman’s correlation coefficient, and ANOVA Tukey’s test, while the BTEX interspecies ratios were calculated for further inter- and intra-urban exposure characterization. Ozone Forming Potential (OFP) was also calculated to analyze the role of VOCs in the formation of tropospheric ozone and to understand the role of VOCs in OFP in multiple seasons. OFP was higher in colder months than in other seasons of the year. Toluene exhibited greater concentrations with emission sources related to vehicular traffic emissions. The sites near the cluster of refineries were observed to have higher BTEX concentrations than others in Houston, Texas. These findings could help formulate targeted emission reduction strategies, for overall VOC levels in Houston, Texas.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"9 ","pages":"Article 100227"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microwave-assisted extraction of pectin from lemon peel powder: Optimization and physicochemical properties 微波辅助提取柠檬皮粉中果胶的工艺优化及理化性质研究

Sustainable Chemistry for the Environment Pub Date : 2025-03-01 DOI: 10.1016/j.scenv.2025.100223

Khalid Mehmood Wani, Ritesh Patidar

{"title":"Microwave-assisted extraction of pectin from lemon peel powder: Optimization and physicochemical properties","authors":"Khalid Mehmood Wani, Ritesh Patidar","doi":"10.1016/j.scenv.2025.100223","DOIUrl":"10.1016/j.scenv.2025.100223","url":null,"abstract":"<div><div>This study employed microwave-assisted extraction to extract pectin from dried lemon peel powder. The extraction was carried out using both continuous and intermittent microwave-assisted methods. The effects of several processing input variables (microwave power 360–900 W, irradiation time 20–80 s and pH 1–3.5 at a fixed loading ratio 1:15 g/mL on the yield of pectin were studied and optimized using the face-centered response surface design. In the intermittent process, the extraction parameters consisted of microwave power ranging from 300 to 900 W, pulse ratio ranging from 0.5 to 1, and pH levels between 1 and 3.5. The desirability function approach was used during the optimization procedure. The yield of pectin extracted exhibited a positive correlation with the microwave power but demonstrated a negative correlation with the extraction time, and pH. A second-order polynomial model was established from the results, which effectively described the variation in the data and accurately depicted the correlation between the independent variables and the response. The highest pectin yield (47.3 %) from lemon peels was obtained under the optimal conditions of 900 W microwave power, 80 s duration, a pulse ratio of 0.5, and a pH of 1 using the intermittent method. On the other hand, the continuous process resulted comparatively lesser pectin content (44.5 %) at 900 W, 20 s extraction time, and a pH of 1. The optimized results were confirmed and a high level of agreement was obtained between the validation experiment and the projected value.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"9 ","pages":"Article 100223"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Competitive and non-competitive adsorption of Cd(II) and Pb(II) from aqueous solution using Zr-BADS metal organic frameworks Zr-BADS金属有机框架对Cd（II）和Pb（II）水溶液的竞争性和非竞争性吸附

Sustainable Chemistry for the Environment Pub Date : 2025-03-01 DOI: 10.1016/j.scenv.2025.100231

Ahmed S. Mubarak , Suhaib S. Salih , Mohammed Kadhom , Tushar K. Ghosh

{"title":"Competitive and non-competitive adsorption of Cd(II) and Pb(II) from aqueous solution using Zr-BADS metal organic frameworks","authors":"Ahmed S. Mubarak , Suhaib S. Salih , Mohammed Kadhom , Tushar K. Ghosh","doi":"10.1016/j.scenv.2025.100231","DOIUrl":"10.1016/j.scenv.2025.100231","url":null,"abstract":"<div><div>Water and wastewater treatment facilities face practical challenges in removing heavy metals, and the search for efficient processes and materials is crucial to solving this issue. This study aims to prepare a recently innovated metal-organic framework Zr-BADS MOFs, then utilize it in adsorbing Cd(II) and Pb(II) ions from wastewater by applying single and competitive systems. The prepared MOF was characterized by Fourier transform infrared spectroscopy, X-ray diffraction, Brunauer−Emmet−Teller, and scanning electron microscope to unravel its textural and surface properties. The systems were applied in the batch mode of operation, and equilibrium was reached after around 30 min. The experimental data kinetically best fitted with the pseudo second order model, and the Langmuir model best described the isotherms. Here, maximum adsorption capacities of 60.756 mg·g<sup>−1</sup> for lead and 53.585 mg·g<sup>−1</sup> for cadmium were achieved. The prepared MOFs demonstrated excellent recycling performance after six cycles of adsorption-desorption processes toward both studied ions. These observations show that the prepared Zr-BADS is a promising material for the removal of lead and cadmium ions in single and coexisting systems.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"9 ","pages":"Article 100231"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Removal of cadmium and (radio)toxic metal ions using activated sludge-based sorbents 利用活性污泥基吸附剂去除镉和（放射性）有毒金属离子

Sustainable Chemistry for the Environment Pub Date : 2025-02-24 DOI: 10.1016/j.scenv.2025.100230

Maria Kapnisti , Konstantinos Lanaras , Aikaterini Liaska , Fotini Noli , Petros Samaras

{"title":"Removal of cadmium and (radio)toxic metal ions using activated sludge-based sorbents","authors":"Maria Kapnisti , Konstantinos Lanaras , Aikaterini Liaska , Fotini Noli , Petros Samaras","doi":"10.1016/j.scenv.2025.100230","DOIUrl":"10.1016/j.scenv.2025.100230","url":null,"abstract":"<div><div>Biochars produced from sewage sludge were investigated towards their adsorption capacity for cadmium and (radio)toxic metals. Samples of waste sewage sludge were subjected to pyrolysis at 350, 450 and 800 °C. The resulting biochars were characterized by using techniques like Fourier-transform infrared spectroscopy and scanning electron microscopy. Their specific surface area and pore size were determined using the BET method, and the point of zero charge was assessed via zeta-potential analysis. The application of biochars and dry sludge in removing Cd(II) from aqueous solutions was demonstrated considering the effect of various factors including metal concentration, temperature, pH, and presence of competing ions. Adsorption isotherms were modeled using Freundlich, Langmuir and Temkin models, while adsorption kinetics were assessed through the pseudo-first and pseudo-second-order as well as Elovich kinetic models, along with the corresponding thermodynamic data. In addition, the adsorption capacity was tested for Cs(Ι), Ba(ΙΙ), Eu(ΙΙΙ) and U(VΙ) ions. Dry sludge and the biochar produced after pyrolysis at 800 °C proved to be the most effective materials for removing cadmium as well as cesium, barium, europium and uranium from aqueous solutions. The evaluation of equilibrium and kinetics data indicated that activated sludge products could serve as effective sorbents for retention of hazardous metals.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"10 ","pages":"Article 100230"},"PeriodicalIF":0.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating and modelling the effect of sodium bicarbonate on the synergy of acetate and propionate on Rhodobacter sphaeroides growth for wastewater treatment 研究和模拟碳酸氢钠对废水处理中醋酸和丙酸协同作用对球形红杆菌生长的影响

Sustainable Chemistry for the Environment Pub Date : 2025-02-21 DOI: 10.1016/j.scenv.2025.100226

Arun Kumar Mehta , Manikanta M. Doki , Gorakhanath Jadhav , Makarand M. Ghangrekar , Brajesh K. Dubey

{"title":"Investigating and modelling the effect of sodium bicarbonate on the synergy of acetate and propionate on Rhodobacter sphaeroides growth for wastewater treatment","authors":"Arun Kumar Mehta , Manikanta M. Doki , Gorakhanath Jadhav , Makarand M. Ghangrekar , Brajesh K. Dubey","doi":"10.1016/j.scenv.2025.100226","DOIUrl":"10.1016/j.scenv.2025.100226","url":null,"abstract":"<div><div><em>Rhodobacter sphaeroides</em> can be used as a promising candidate for biotechnological resource recovery because of their metabolic versatility. This investigation has employed varying concentrations of sodium bicarbonate at optimal light intensity and synergy of acetate and propionate to examine their effects on the growth of <em>Rh. sphaeroides</em>, as well as on the contents of polyhydroxyalkanoate, protein, and carbohydrate. Acetate-mediated growth at optimal light intensity produced 0.35 g/L of biomass, with polyhydroxyalkanoate extraction yield, carbohydrate and protein contents of 63.70 ± 3.27 mg PHA/g biomass, 2.78 ± 0.51 % w/w and 12.75 ± 0.87 % w/w, respectively, after 7 days. At optimum dosage of 0.9 g/L of sodium bicarbonate, in conjunction with the optimal light intensity and acetate and propionate synergy, 1.25 g/L of biomass was produced, with polyhydroxyalkanoate extraction yield, carbohydrate, and protein contents of 140.83 ± 12.78 mg PHA/g biomass, 7.11 ± 0.47 % w/w and 39.25 ± 0.60 % w/w, respectively. The biomass yield and protein content decreased at 1.2 g/L of sodium bicarbonate, while the polyhydroxyalkanoate content increased, and the carbohydrate content remained unchanged. The simultaneous use of inorganic carbon (sodium bicarbonate) and organic carbon (acetate and propionate) at the optimal light intensity is an efficient technique for enhancing the biomass yield and the synthesis of metabolites, including polyhydroxyalkanoate, protein, and carbohydrate, paving the path for large-scale cultivation and application in wastewater remediation. These metabolites possess diverse uses, including the production of bioplastics from PHA, animal feed from protein, and biofuels from carbohydrate.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"9 ","pages":"Article 100226"},"PeriodicalIF":0.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing the antifungal efficacy of organic fungicides combined with inorganic salts for wood protection 有机杀菌剂与无机盐复合用于木材防护的抑菌效果评价

Sustainable Chemistry for the Environment Pub Date : 2025-02-21 DOI: 10.1016/j.scenv.2025.100229

Jyoti Papola , Anil Kumar Sethy , R. Sundararaj , Rakesh Kumar

{"title":"Assessing the antifungal efficacy of organic fungicides combined with inorganic salts for wood protection","authors":"Jyoti Papola , Anil Kumar Sethy , R. Sundararaj , Rakesh Kumar","doi":"10.1016/j.scenv.2025.100229","DOIUrl":"10.1016/j.scenv.2025.100229","url":null,"abstract":"<div><div>Wood is a very useful construction material that has been used for many years in several applications. The organic composition of wood makes it vulnerable to several bio-deteriorating agents. To prolong its lifespan, wood needs to be treated with wood preservatives. Environmental concerns regarding first and second-generation wood preservatives have led to a shift toward using carbon-based third-generation preservatives, particularly triazoles. Preservative formulations with minimal adverse on the environment and human health have gained increasing focus. This study examines the antifungal properties of an organic fungicide used in combination with inorganic salts as a wood preservative, employing a petri plate bioassay. Additionally, antifungal efficacy was assessed in impregnated mango wood blocks. The results indicated a gradual decline in weight loss percentages of 2.37 % and 3.39 % against both brown rot and white rot fungi. These results imply that using a combination of inorganic salts with organic fungicides can serve as an effective way to preserve wood sustainably. Both Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) were used to analyze alterations in microstructure and chemical structure, respectively. The incorporation of organic fungicides with inorganic salts enhances resistance to fungi; furthermore, FTIR analysis and SEM micrographs of deteriorated wood demonstrated that treated specimens showed less degradation compared to controls.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"9 ","pages":"Article 100229"},"PeriodicalIF":0.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microbial electrolysis cells: Fuelling the future with biohydrogen – A review 微生物电解细胞：生物氢燃料的未来-综述

Sustainable Chemistry for the Environment Pub Date : 2025-02-19 DOI: 10.1016/j.scenv.2025.100224

Divyanshu Sikarwar , Indrasis Das , Anusha Ganta , Indumathi M. Nambi , Benjamin Erable , Sovik Das

引用次数: 0

Towards sustainable corrosion inhibition: A combined experimental and computational study of ethyl triphenyl phosphonium iodide on aluminium in acidic medium 迈向持续缓蚀：三苯基乙基碘化磷在酸性介质中对铝的实验与计算结合研究

Sustainable Chemistry for the Environment Pub Date : 2025-02-19 DOI: 10.1016/j.scenv.2025.100221

Mansi Y. Chaudhary , Shramila Yadav , Prerna Bansal , Yudhvir S. Sharma , Manish Gautam , Charu Chandra , Amarpreet K. Kalra , Meenakshi Gupta

{"title":"Towards sustainable corrosion inhibition: A combined experimental and computational study of ethyl triphenyl phosphonium iodide on aluminium in acidic medium","authors":"Mansi Y. Chaudhary , Shramila Yadav , Prerna Bansal , Yudhvir S. Sharma , Manish Gautam , Charu Chandra , Amarpreet K. Kalra , Meenakshi Gupta","doi":"10.1016/j.scenv.2025.100221","DOIUrl":"10.1016/j.scenv.2025.100221","url":null,"abstract":"<div><div>The quest for innovative and effective corrosion inhibitors, alongside advanced methodologies for corrosion monitoring and quantification, remains pivotal across diverse industrial domains. This study explores the potential of ethyl triphenyl phosphonium iodide (ETPI) as a high-performance corrosion inhibitor for aluminium in a 0.5 M hydrochloric acid medium. Employing three complementary experimental techniques—weight loss analysis, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS)—the research demonstrates consistent and reliable results across varying temperatures and ETPI concentrations. A notable decline in inhibition efficiency was observed at reduced ETPI concentrations and elevated temperatures, underscoring the dynamic interplay between environmental factors and inhibitor performance. Crucially, the adsorption behavior of ETPI aligns with the Flory-Huggins adsorption isotherm, with thermodynamic parameters (∆G<sup>0</sup><sub>ads</sub>, ∆H<sup>0</sup><sub>ads</sub>, ∆S<sup>0</sup><sub>ads</sub>, and K<sub>ads</sub>) and kinetic activation energy (E<sub>a</sub>) providing deeper insights into the adsorption mechanisms. Additionally, quantum chemical simulations reveal the molecular attributes of ETPI responsible for robust chemisorption interactions with the aluminium surface. These findings are further validated by scanning electron microscopy (SEM) images and energy-dispersive X-ray (EDX) spectroscopy, which confirm the inhibitor's efficacy and surface-protective properties.</div><div>The study not only reinforces ETPI’s viability as an effective corrosion inhibitor but also provides a comprehensive framework combining experimental, thermodynamic, and theoretical approaches, paving the way for the development of next-generation corrosion mitigation strategies.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"9 ","pages":"Article 100221"},"PeriodicalIF":0.0,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Production of laccase by Bacillus subtilis and Aspergillus niger for treatment of textile effluent 枯草芽孢杆菌和黑曲霉生产漆酶处理纺织废水的研究

Sustainable Chemistry for the Environment Pub Date : 2025-02-18 DOI: 10.1016/j.scenv.2025.100222

Olabisi Peter Abioye , Suleiman Umaru , Sesan Abiodun Aransiola , Oluwafemi Adebayo Oyewole , Naga Raju Maddela , Ram Prasad

{"title":"Production of laccase by Bacillus subtilis and Aspergillus niger for treatment of textile effluent","authors":"Olabisi Peter Abioye , Suleiman Umaru , Sesan Abiodun Aransiola , Oluwafemi Adebayo Oyewole , Naga Raju Maddela , Ram Prasad","doi":"10.1016/j.scenv.2025.100222","DOIUrl":"10.1016/j.scenv.2025.100222","url":null,"abstract":"<div><div>The improper disposal of textile effluents without effective treatment has adverse environmental, social, economic, and health impacts and as such, it is vital to find innovative technological solutions to reduce the negative consequences of textile effluents. Laccases are versatile multicopper enzymes found in plants, fungi and other microorganisms with wide applications especially in the textile and paper industry. This study examined the production of laccase from <em>Bacillus subtilis</em> and <em>Aspergillus niger</em> to remediate textile effluent. Both organisms were identified by molecular method and plate test method was used to evaluate laccase production by the two organisms. Rice bran emerged as the substrate of choice for laccase production. At optimum temperature (30°C), the highest laccase produced was 0.522 U/mL and 0.642 U/mL at 35°C for <em>B. subtilis</em> and <em>A. niger</em> respectively. The optimum pH level of 5 and 6 produced the highest laccase yield of 0.583 U/mL and 0.684 U/mL respectively. Significant improvements of laccases from <em>B. subtilis</em> and <em>A. niger</em> were observed on physicochemical analysis of TDS, pH, electrical conductivity, TSS, temperature and DO in treating textile effluent. Notably, these enzymes exhibited remarkable efficacy reduction in BOD (38 %), COD (14 %), and nitrate (23 %) levels in the effluent. The study underscores the efficacy of laccases from the microorganisms in treating textile effluent, with concentrations ranging from 10 to 30 U/mL proving effective. However, laccase produced from <em>B. subtilis</em> showed more remediation potential in textile effluent treatment compared to the one produced by <em>A. niger</em>.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"9 ","pages":"Article 100222"},"PeriodicalIF":0.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143437081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0