Environmental Technology最新文献_第6页

Study of the behaviour of cations in leaching of NCA lithium-ion batteries by electrodialysis. 电渗析法研究NCA锂离子电池浸出过程中阳离子的行为。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-06-01 Epub Date: 2025-01-29 DOI: 10.1080/09593330.2025.2451781

Anastássia Mariáh Nunes de Oliveira Lima, Denise Crocce Romano Espinosa, Luciana Assis Gobo, Elio Augusto Kumoto, Amilton Barbosa Botelho Junior, Jorge Alberto Soares Tenório

{"title":"Study of the behaviour of cations in leaching of NCA lithium-ion batteries by electrodialysis.","authors":"Anastássia Mariáh Nunes de Oliveira Lima, Denise Crocce Romano Espinosa, Luciana Assis Gobo, Elio Augusto Kumoto, Amilton Barbosa Botelho Junior, Jorge Alberto Soares Tenório","doi":"10.1080/09593330.2025.2451781","DOIUrl":"10.1080/09593330.2025.2451781","url":null,"abstract":"End-of-life lithium-ion batteries (LIBs) present an opportunity to generate a circular economy through recycling. One of the techniques that can contribute to the purification of leached batteries is electrodialysis. In this work, we present a study of current variation in relation to monovalent (Li), divalent (Ni and Co) and trivalent (Al) cations from the synthetic solution of an NCA-type lithium-ion battery leachate, using electrodialysis membranes (HDX-100 and HDX-200) at three different current densities (12.5, 18.75 and 25.0 mA/cm2) at room temperature (25°C). After the experiments carried out, it was shown that the concentration of metals in solution influences the separation of equal charges, where increasing the current has no influence on the separation of the metals studied, but that the application of cycles with the cation concentrate generated can lead to the separation of Ni without the addition of any chemical reagent. These results presents more expressive due to the high concentration of Ni (26.1 g/L) compared to the other elements, which becomes an advantage in the application of electrodialysis cycles.HighlightsThe use of a leaching solution from NCA-type lithium-ion batteries can be used to separate nickel by electrodialysis;Increasing the current density in electrodialysis does not interfere with the selectivity of the different valences of the cations;Carrying out more cycles can contribute to greater purity of the nickel solution for electrodialysis;No chemical reagents were used to obtain a purity of 70% in a single 12-hour cycle.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"3024-3035"},"PeriodicalIF":2.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143064625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced metals precipitation in acid mine drainage by thermal activation magnesite-pine shavings dispersed alkaline substrate. 热活化氧化镁-松屑分散碱性基质促进酸性矿山水中金属析出。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-06-01 Epub Date: 2025-01-27 DOI: 10.1080/09593330.2025.2456132

Fen Xu, Lei Liang, Qiang Liu, Jie Qin, Yuhui Liao, Jianfei Yuan

{"title":"Enhanced metals precipitation in acid mine drainage by thermal activation magnesite-pine shavings dispersed alkaline substrate.","authors":"Fen Xu, Lei Liang, Qiang Liu, Jie Qin, Yuhui Liao, Jianfei Yuan","doi":"10.1080/09593330.2025.2456132","DOIUrl":"10.1080/09593330.2025.2456132","url":null,"abstract":"The acid mine drainage (AMD) is characterized by its highly acidic nature and elevated concentrations of metal ions, thereby exerting significant impacts on both human health and the environment. This study employed a dispersed alkaline substrate (DAS) consisting of thermal activation magnesite and pine shavings for the treatment of AMD. The investigation focused on determining the optimal thermal activation conditions of magnesite, evaluating the effectiveness of the DAS in regulating acidity and removing metal ions from AMD, identifying critical factors influencing treatment efficiency, and conducting toxicity assessment on the effluent. Results indicated that calcination at 700 °C for 60 min was determined to be the optimal thermal activation condition for magnesite. Under the optimal operating conditions of the DAS (flow rate: 0.4 mL/min, filling mass ratio: thermal activation magnesite to pine shavings = 1:1), the system achieved complete removal (100%) of metal ions within 396 h while maintaining a pH above 7.0. Moreover, it significantly minimized operating costs and sludge generation. Toxicity assessment experiments conducted using Chlorella proteolytica demonstrated a significant reduction in biotoxicity after treatment with this system. These findings suggest that a DAS based on thermal activation magnesite holds promise as an effective solution for treating AMD.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"3130-3141"},"PeriodicalIF":2.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143052088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Leveraging oyster shell and zero-valent iron to eliminate excessive acidification and enhance methane production from readily acidified substrates. 利用牡蛎壳和零价铁消除过度酸化，提高易酸化底物的甲烷产量。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-06-01 Epub Date: 2024-12-24 DOI: 10.1080/09593330.2024.2442778

Xiaofan Ding, Wei Jiang, Fangyuan Feng, Yanfei Li, Yanzhen Yu, Chunhui Zhao, Hui Mu

{"title":"Leveraging oyster shell and zero-valent iron to eliminate excessive acidification and enhance methane production from readily acidified substrates.","authors":"Xiaofan Ding, Wei Jiang, Fangyuan Feng, Yanfei Li, Yanzhen Yu, Chunhui Zhao, Hui Mu","doi":"10.1080/09593330.2024.2442778","DOIUrl":"10.1080/09593330.2024.2442778","url":null,"abstract":"Anaerobic digestion is a sustainable technology for methane (CH4) production from organic waste and wastewater. However, its performance is frequently hindered by excessive acidification in readily acidified substrates, such as starch wastewater. Oyster shell (OS), a natural alkaline material, effectively regulates pH and enhances CH4 production. Nevertheless, its use increases CO2 levels in biogas, highlighting the need for in-situ conversion of CO2 into CH4. This study presents a novel approach by combining OS with zero-valent iron (ZVI), which acts as an indirect hydrogen (H2) source, to facilitate this conversion and boost methanogenesis from readily acidified substrates. Results demonstrated a 22.8% reduction in CO2 levels and a significant increase in CH4 yield to 364 mL/g-COD, surpassing both previously reported values and the theoretical maximum of 350 mL/g-COD. Additionally, the daily CH4 production rate was increased by 60.3%, with a shorter lag phase and overall duration. This improvement was driven by the synergy between OS and ZVI, which enhanced hydrogen ion consumption, releasing additional CO2 and H2 for methanogenesis. The synergistic interaction also promoted extracellular polymeric substances levels, acidogenic and methanogenic steps, key enzyme activities, and enrichments of Methanothrix, hydrogenotrophic methanogens, and Longilinea. Furthermore, an economic assessment revealed significant cost benefits of this approach, offering promising potential for industrial applications. This study provides new insights into leveraging OS and ZVI to eliminate excessive acidification and improve CH4 production from readily acidified substrates.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"2656-2669"},"PeriodicalIF":2.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of sludge biochar at different carbonization temperatures on anammox process. 不同炭化温度下污泥生物炭对厌氧氨氧化过程的影响。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-06-01 Epub Date: 2024-12-12 DOI: 10.1080/09593330.2024.2438893

Maolin Wu, Cheng Yao, Zhengxiang Wang, Yongqi Xiong, Xiaoling Zhang, Aixia Chen, Wenjuan Yang

{"title":"Influence of sludge biochar at different carbonization temperatures on anammox process.","authors":"Maolin Wu, Cheng Yao, Zhengxiang Wang, Yongqi Xiong, Xiaoling Zhang, Aixia Chen, Wenjuan Yang","doi":"10.1080/09593330.2024.2438893","DOIUrl":"10.1080/09593330.2024.2438893","url":null,"abstract":"Adding biochar can expedite the establishment of the anaerobic ammonia oxidation (anammox) process and improve the nitrogen removal efficiency of the anammox reactor. However, the optimization research of biochar derived from dewatered sludge on anammox is relatively limited. In this study, four sequencing batch reactors (SBRs) were compared for the enrichment of anammox bacteria using synthetic wastewater with sludge biochar carbonized at temperatures of 300°C, 550°C, and 800°C, and without biochar (CK). The start-up and the nitrogen removal performance of anammox process were evaluated, as well as the effect of organic carbon on nitrogen removal. The results showed that the addition of sludge biochar at different pyrolysis temperatures all can accelerate the start-up of the anammox process, improve the nitrogen removal efficiency, and reduce the total nitrogen (TN) in the effluent. Although the reactor with biochar carbonized at 800°C showed the fastest increase in the nitrogen loading, the best TNRE occurred in the reactor with biochar carbonized at 300°C, which was 8.0% higher than those of the control (CK, p < 0.05). The predominant genus of anammox in SBRs differed between the sludge biochar reactor and the control reactor (without biochar), which were Candidatus Brocadia and Candidatus Jettenia, respectively. Additionally, the total abundances of anammox bacteria and denitrifiers increased with the addition of sludge biochar.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"2521-2535"},"PeriodicalIF":2.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142817494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anaerobic biodegradation of PLA at mesophilic and thermophilic temperatures: methanation potential and associated microbial community. 在中温和亲热温度下聚乳酸的厌氧生物降解：甲烷化潜力和相关的微生物群落。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-06-01 Epub Date: 2025-02-11 DOI: 10.1080/09593330.2024.2449267

Lan Mu, Jingxuan Ding, Yifan Wang, Hao Peng, Junyu Tao, Emma Pulkkinen, Hang Si, Lei Zhang, Aimin Li, Jinhe Li

{"title":"Anaerobic biodegradation of PLA at mesophilic and thermophilic temperatures: methanation potential and associated microbial community.","authors":"Lan Mu, Jingxuan Ding, Yifan Wang, Hao Peng, Junyu Tao, Emma Pulkkinen, Hang Si, Lei Zhang, Aimin Li, Jinhe Li","doi":"10.1080/09593330.2024.2449267","DOIUrl":"10.1080/09593330.2024.2449267","url":null,"abstract":"Polylactic acid (PLA) is the most promising bio-based alternative to traditional petrochemical plastics across diverse applications. In this study, the biodegradation performance of PLA plastic under two potential end-of-life scenarios: mesophilic and thermophilic anaerobic digestion (AD) were investigated. The biotic and abiotic influence factors were evaluated through short-time exposure experiments. The potential bacteria and archaea involved in PLA anaerobic biodegradation were identified by high-throughput 16S rRNA sequencing analysis. The results showed that PLA had different biodegradation performance at mesophilic and thermophilic digestion (the biogas yield: 36.70 ± 0.2vs 398.6 ± 1.1 mL/g VS). The increased temperature at thermophilic conditions improved the biodegradability of PLA, but an attack by microorganisms was more crucial for biodegradation. The bacteria engaged in PLA hydrolysis and acidification were closely associated with proteolytic microbes. Mesophilic biodegradation of PLA involved Clostridia (14.94%), Anaerolineae (22.6%) and acetoclastic Methanothrix (53.0%). Thermophilic biodegradation of PLA was mainly accomplished by syntrophic microbes, Clostridia (38.2%), Synergistia (18.99%) and Thermotogae (17.82%), in tandem with hydrogenotrophic Methanothermobacter (20.5%). The results provide some insights for understanding mechanisms governing PLA biodegradation under AD conditions.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"2932-2944"},"PeriodicalIF":2.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143398760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of Cd²⁺ and Pb²⁺ in seawater using a shipborne detection device. 用船载检测装置测定海水中的Cd2+和Pb2+。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-06-01 Epub Date: 2025-02-11 DOI: 10.1080/09593330.2025.2450559

Zhiwei Lai, Huiling Zhong

引用次数: 0

Mechanisms of N₂ formation from zigzag configurations with different dinitrogen active sites during coal pyrolysis. 煤热解过程中不同二氮活性位点之字形构型生成N2的机理

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-06-01 Epub Date: 2025-02-16 DOI: 10.1080/09593330.2025.2450560

Tingting Jiao, Pengzheng Shi, Jieyao Song, Xianrong Qiao, Ju Shangguan

{"title":"Mechanisms of N2 formation from zigzag configurations with different dinitrogen active sites during coal pyrolysis.","authors":"Tingting Jiao, Pengzheng Shi, Jieyao Song, Xianrong Qiao, Ju Shangguan","doi":"10.1080/09593330.2025.2450560","DOIUrl":"10.1080/09593330.2025.2450560","url":null,"abstract":"To have a deep insight into the microscopic mechanism of N2 formation during coal pyrolysis, the density functional theory was employed to compute and investigate the formation path of N2. Seven-membered ring containing two pyridine nitrogen is selected as carbonaceous models. The results reveal that different dinitrogen active sites induce varied electron distribution on the surface of models. It makes varying energy barriers for the breakage of the C-N. In the pyrolysis process of R1 (two N atoms numbered 4 and 6) and R2 (two N atoms at positions 6 and 8), the energy barriers of the cleavage of the first N (the nitrogen first stripped in the structure) are 387.49 and 357.47 kJ/mol, respectively, and the energy barriers of the cleavage of the second N (the nitrogen stripped later in the structure) are 142.43 and 316.89 kJ/mol, respectively. However, different dinitrogen active sites have no effect on the main pyrolysis properties of the structure. Both of the two dinitrogen char models experienced the same process: the stripping of the first N atom and the formation of five-membered ring, the formation of dinitrogen five-membered ring, the stripping of the second N atom, the formation of C(NN) structure, N2 desorption. According to the analysis of the reaction energy barriers, dinitrogen zigzag char model to N2 is consistent with the experimental results.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"3000-3010"},"PeriodicalIF":2.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143432532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Denitrification efficiency and biofilm community succession in a bidirectional alternating influent biofilter. 双向交替进水生物滤池反硝化效率与生物膜群落演替。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-06-01 Epub Date: 2025-03-08 DOI: 10.1080/09593330.2024.2448764

Lifei Wang, Jiajia Zhou, Jiaqing Xiong, Tuanping Hu, Qianhe Xia

{"title":"Denitrification efficiency and biofilm community succession in a bidirectional alternating influent biofilter.","authors":"Lifei Wang, Jiajia Zhou, Jiaqing Xiong, Tuanping Hu, Qianhe Xia","doi":"10.1080/09593330.2024.2448764","DOIUrl":"10.1080/09593330.2024.2448764","url":null,"abstract":"Biofilters are widely used for nitrogen removal in wastewater treatment. This study developed a bidirectional alternating-influent biofilter to reduce clogging and enhance nitrogen removal. Alternating influent utilized biofilm on the media as a denitrification carbon source. With initial ammonium, nitrate, and total nitrogen concentrations of 8.49±0.30, 12.52±0.20, and 19.89±0.79 mg/L, the forward influent achieved ammonium, nitrate, and total nitrogen removal efficiencies of 81.6%, 66.8%, and 71.2%, increasing by 13.3%, 3.0%, and 4.8% at the effluent. Reverse influent further boosted nitrate and total nitrogen removal by 14.0% and 5.5%. The natural DO gradient under conventional influent conditions was simulated, and the nitrogen removal mechanism and treatment effect, mainly nitrification and denitrification, were discussed. Microbial analysis showed that endogenous carbon in the biofilm, derived from decaying cells and EPS, reduced clogging risk. Significant changes in bacterial count, EPS content, and microbial abundance were observed across influent directions, with Proteobacteria, Bacteroidetes, and Pseudomonas increasing under reverse flow. These results indicate that bidirectional alternating influent can significantly improve nitrogen removal and reduce clogging, offering an effective optimization for wastewater treatment.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"2917-2931"},"PeriodicalIF":2.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143582234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improvement of the three-dimensional electrochemical degradation of amoxicillin using Co₃O₄/GAC as both particle electrode and catalyst for peroxymonosulfate activation. 用Co3O4/GAC作为颗粒电极和过氧单硫酸盐活化催化剂改进阿莫西林的三维电化学降解。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-06-01 Epub Date: 2025-03-27 DOI: 10.1080/09593330.2024.2447961

Jinsong Ma, Songchol Hyon, Sunghyok Kim, Tong Chol Ri

{"title":"Improvement of the three-dimensional electrochemical degradation of amoxicillin using Co3O4/GAC as both particle electrode and catalyst for peroxymonosulfate activation.","authors":"Jinsong Ma, Songchol Hyon, Sunghyok Kim, Tong Chol Ri","doi":"10.1080/09593330.2024.2447961","DOIUrl":"10.1080/09593330.2024.2447961","url":null,"abstract":"In this study, a novel three-dimensional (3D) electrode system (3D-Co3O4/GAC-PMS) was constructed that can effectively degrade amoxicillin (AMX) in aqueous solution using granular activated carbon (GAC) loaded with Co3O4 catalyst (Co3O4/GAC) as a catalyst for the activation of peroxymonosulfate (PMS) as well as particle electrode. The effects of the main operating parameters on AMX degradation, TOC removal, electrical energy consumption and current efficiency were investigated. Under the optimum operating conditions (initial solution pH of 5.9, PMS concentration of 13 mmol/L, current density of 5.6 mA/cm2), 99.9% of AMX was degraded after 10 min of treatment and 96.8% of TOC was removed after 120 min of treatment. Meanwhile, the electrical energy consumption of the system was very small, only 45.1 kWh/kg TOC. Comparative experiments with other systems and kinetic analysis have confirmed the superior performance of the 3D-Co3O4/GAC-PMS system for the degradation of AMX. During five cycles, the Co3O4/GAC particle electrode showed excellent stability and long lifetime. The 3D-Co3O4/GAC-PMS system simultaneously degraded 100% of three different pharmaceuticals (amoxicillin, ciprofloxacin and acetaminophen) after 8 min of reaction and removed 88.1% TOC after 120 min of reaction, which suggested the applicability of the system for real wastewater treatment. The degradation of AMX was confirmed using UV-Vis spectroscopy and the reaction mechanism of the 3D-Co3O4/GAC-PMS system was proposed. Based on the intermediates detected by ultra-high pressure liquid chromatograph coupled with quadrupole time-of-flight mass-spectrometry, the degradation pathways of AMX in the 3D-Co3O4/GAC-PMS system were presented.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"2881-2899"},"PeriodicalIF":2.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143729380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cyanobacterial phycoremediation: a sustainable approach to dairy wastewater management. 蓝藻藻修复：一个可持续的方法，乳品废水管理。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-06-01 Epub Date: 2025-01-27 DOI: 10.1080/09593330.2025.2453947

Shristi Chahal, Rupali Bhandari

{"title":"Cyanobacterial phycoremediation: a sustainable approach to dairy wastewater management.","authors":"Shristi Chahal, Rupali Bhandari","doi":"10.1080/09593330.2025.2453947","DOIUrl":"10.1080/09593330.2025.2453947","url":null,"abstract":"The dairy industry is a significant sector within the food industries, known for its high-water consumption and consequent generation of dairy wastewater (DWW), which is rich in pollutants like Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD). Improper disposal of DWW poses serious environmental challenges, including eutrophication and highlighting the need for sustainable biological treatment methods. This study investigates the potential of indigenous cyanobacterial strains Oscillatoria pseudogeminata, Oscillatoria proteus, Oscillatoria trichoides, and Lyngbya ceylanica for the bioremediation of DWW. Under controlled laboratory conditions, these strains were assessed for their uptake capabilities for 15 days. Results indicated that L. ceylanica significantly reduced (approx. 70%, P < .05) in key pollutants such as ammonia, nitrate, and phosphate compared to other strains. Biochemical analyses indicated a decrease in biomass, chlorophyll a, carotenoids, proteins, and carbohydrates in DWW relative to the growth of cyanobacteria in BG 11 media. This decline may hinder the effectiveness of cyanobacterial in wastewater remediation. The findings highlight the efficacy of selected cyanobacteria in nutrient removal from DWW, emphasizing their dual role in nutrient uptake through biosorption mechanism and biomass generation. The results pave the way for innovative biotechnological applications such as biofertilizers and feedstock for bioethanol/ biodiesel production, thus promoting more sustainable management practices within the dairy industry.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"3077-3089"},"PeriodicalIF":2.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143052087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0