Case Studies in Chemical and Environmental Engineering最新文献_第7页

Long-term performance and life cycle assessment of integrated Hydroponics-Microbial Electrochemical Technology for managing domestic wastewater resources 水培-微生物电化学集成技术在生活污水资源管理中的长期性能和生命周期评价

Case Studies in Chemical and Environmental Engineering Pub Date : 2026-06-01 Epub Date: 2026-02-12 DOI: 10.1016/j.cscee.2026.101347

Ravi Kumar Yadav , Rendra Hakim Hafyan , Ramandeep Singh , Siddharth Gadkari , Sunil A. Patil

{"title":"Long-term performance and life cycle assessment of integrated Hydroponics-Microbial Electrochemical Technology for managing domestic wastewater resources","authors":"Ravi Kumar Yadav , Rendra Hakim Hafyan , Ramandeep Singh , Siddharth Gadkari , Sunil A. Patil","doi":"10.1016/j.cscee.2026.101347","DOIUrl":"10.1016/j.cscee.2026.101347","url":null,"abstract":"<div><div>This study aimed to assess the practical applicability and environmental sustainability of the emerging integrated Hydroponics-Microbial Electrochemical Technology (iHydroMET) for managing domestic wastewater resources through a year-long field study. The tower-design iHydroMET system, comprised of seven modular reactors containing leafy greens such as lettuce/sweet basil/peppermint, coconut husk, and a granular activated carbon-electrode assembly, achieved robust wastewater treatment (90.1 ± 2.7% at 405.5 ± 34.1 mg/L.d COD, 45.2 ± 5.2% at 32.9 ± 3.8 mg/L.d total nitrogen, and 98.3 ± 0.6% turbidity removal), without showing clogging signs at 11.7 h hydraulic retention time. It produced reclaimed water (∼20 mg/L TN and ∼5 mg/L TP) suitable for gardening, substantial leafy greens (∼312 g/m<sup>3</sup><sub>wastewater</sub>), and electric power output (75.7 ± 4.8 mW/m<sup>2</sup>) for on-site use. The “cradle-to-gate” life cycle analysis revealed plastic framework and electricity consumption as the major contributors to environmental burdens (e.g., 0.34 kg CO<sub>2</sub>-eq global warming potential), while plant cultivation avoided the impacts (6.5 to 23.2%). The land footprint of the demonstrated system (1.6 m<sup>2</sup>/PE) is higher than that of aeration-based technologies but lower than constructed wetlands. The findings suggest that low-cost iHydroMET is suitable for managing domestic wastewater, thereby promoting circular resource utilization paradigms at point sources such as households.</div></div>","PeriodicalId":34388,"journal":{"name":"Case Studies in Chemical and Environmental Engineering","volume":"13 ","pages":"Article 101347"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147384623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Neural network-based prediction of water contamination dynamics in a rapidly developing tropical region 基于神经网络的快速发展热带地区水污染动态预测

Case Studies in Chemical and Environmental Engineering Pub Date : 2026-06-01 Epub Date: 2026-02-04 DOI: 10.1016/j.cscee.2026.101342

Md Abdullah Al Mamun Hridoy , Chiara Bordin , Paolo Pastorino , Khairul Nizam Abdul Maulud , Md Maynuddin Pathan , Azeez Olalekan Baki

{"title":"Neural network-based prediction of water contamination dynamics in a rapidly developing tropical region","authors":"Md Abdullah Al Mamun Hridoy , Chiara Bordin , Paolo Pastorino , Khairul Nizam Abdul Maulud , Md Maynuddin Pathan , Azeez Olalekan Baki","doi":"10.1016/j.cscee.2026.101342","DOIUrl":"10.1016/j.cscee.2026.101342","url":null,"abstract":"<div><div>Water contamination by toxic elements, including arsenic (As), iron (Fe), phosphate (PO<sub>4</sub>), and ammonia nitrogen (NH<sub>3</sub>–N), represents a critical threat to aquatic ecosystems and human health, especially in fast-growing tropical regions. Reliable prediction of contaminant behaviour is essential for early warning and sustainable water management. This study applies an integrated forecasting framework that combines Artificial Neural Networks (ANN) with time-series analysis to evaluate water quality parameters. The ANN models showed moderate predictive performance, with EC) achieving 50.76% accuracy and chloride (Cl) predictions generating MAE and RMSE values of 37.75 and 41.27, respectively. However, the high MAPE (218.88%) for Cl highlights the difficulty of modelling episodic pollution spikes. Correlation analysis further indicated a strong EC–Cl association (r = 0.99) and generally weak interrelationships among nutrients and metals (|r| ≤ 0.46). Time-series decomposition further revealed strong seasonal patterns, higher contamination during dry months due to limited dilution, and an overall rising trend linked to increasing anthropogenic pressures. These findings underscore the region's seasonal vulnerability and demonstrate that integrating ANN with temporal analysis can enhance early warning systems, improve monitoring strategies, and support proactive water quality protection in fast-developing tropical basins.</div></div>","PeriodicalId":34388,"journal":{"name":"Case Studies in Chemical and Environmental Engineering","volume":"13 ","pages":"Article 101342"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147384805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Greenhouse gas emission forecasting analysis in Jakarta towards net zero emissions in 2050 雅加达2050年实现净零排放的温室气体排放预测分析

Case Studies in Chemical and Environmental Engineering Pub Date : 2026-06-01 Epub Date: 2025-12-23 DOI: 10.1016/j.cscee.2025.101315

Lina Gozali , Katya Victory Liu , Adianto Adianto , Siti Rohana Nasution , Carla Olivia Doaly

{"title":"Greenhouse gas emission forecasting analysis in Jakarta towards net zero emissions in 2050","authors":"Lina Gozali , Katya Victory Liu , Adianto Adianto , Siti Rohana Nasution , Carla Olivia Doaly","doi":"10.1016/j.cscee.2025.101315","DOIUrl":"10.1016/j.cscee.2025.101315","url":null,"abstract":"<div><div>Increasing greenhouse gas (GHG) emissions are a serious threat to the environment, especially in Jakarta, which in 2023 recorded emissions of 63 MtCO<sub>2</sub>e. This study aims to identify the primary factors contributing to GHG emissions in Jakarta, project emission trends until 2050 using pessimistic, optimistic, and net-zero scenarios, and formulate effective mitigation strategies. The variables used are electricity consumption, private vehicle use, industrial energy consumption, waste generation, population growth, green open space, and public transportation usage. The analysis was conducted using various forecasting methods, including multiple linear regression, ARIMA, ARIMAX, SARIMA, SARIMAX, Random Forest, and Multilayer Perceptron. Among these, the Multilayer Perceptron model achieved the highest predictive accuracy in long-term predictions. The results reveal that current mitigation efforts are insufficient to achieve net-zero emissions by 2050, indicating the need for more aggressive interventions. Effective strategies include expanding green open space by 7 % annually, reducing motorized vehicle use by 4 %, lowering industrial energy consumption by 3 %, improving waste treatment efficiency by 3 %, and accelerating the transition to renewable energy. These findings highlight the urgency of enhancing climate action and provide a framework that can inform urban emission reduction strategies in other rapidly developing cities seeking sustainable, low-carbon futures.</div></div>","PeriodicalId":34388,"journal":{"name":"Case Studies in Chemical and Environmental Engineering","volume":"13 ","pages":"Article 101315"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145925616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal accumulation and rhizosphere microbial associations in Nymphaea lotus and Limnocharis flava from a natural wetland 天然湿地荷花和黄颡鱼根际微生物与金属积累的关系

Case Studies in Chemical and Environmental Engineering Pub Date : 2026-06-01 Epub Date: 2026-02-19 DOI: 10.1016/j.cscee.2026.101345

Naiyanan Ariyakanon , Bencharithiwong Naratorn , Rungsiyanont Chonchaya , Avnish Nitin Mistry

{"title":"Metal accumulation and rhizosphere microbial associations in Nymphaea lotus and Limnocharis flava from a natural wetland","authors":"Naiyanan Ariyakanon , Bencharithiwong Naratorn , Rungsiyanont Chonchaya , Avnish Nitin Mistry","doi":"10.1016/j.cscee.2026.101345","DOIUrl":"10.1016/j.cscee.2026.101345","url":null,"abstract":"<div><div>Wetlands are vital ecosystems that support nutrient cycling and water purification but are increasingly threatened by heavy metal contamination. This study evaluated the accumulation of Ni, As, Cd, Cr, Cu, and Zn in <em>Nymphaea lotus</em> L. and <em>Limnocharis flava</em> (L.) Buchenau and investigated their relationships with sediment properties and rhizosphere microbial communities in a natural wetland in central Thailand. Metal levels in plant tissues and sediments were quantified, and rhizosphere bacteria were characterized using 16S rRNA gene sequencing. <em>N. lotus</em> showed higher accumulation of Ni, As, Cd, and Cr, whereas <em>L. flava</em> preferentially accumulated Cu and Zn. Bioconcentration and bioaccumulation factors exceeded 1 for As and Zn in <em>N. lotus</em> and for Cu and Zn in <em>L. flava</em>, while translocation factors indicated efficient movement of Zn in <em>N. lotus</em> and of Cr, Cu, and Zn in <em>L. flava</em>. Strongly acidic sediments enhanced metal solubility and mobility. Microbial diversity was higher in <em>L. flava</em> roots, whereas diversity declined in <em>N. lotus</em> under elevated As and Cr. Both rhizospheres were dominated by Proteobacteria, with metal tolerant taxa enriched in contaminated zones. Both species are promising phytoremediation candidates for As, Cr, Zn, and Cu contaminated wetlands.</div></div>","PeriodicalId":34388,"journal":{"name":"Case Studies in Chemical and Environmental Engineering","volume":"13 ","pages":"Article 101345"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147384598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phosphazene–chitosan based COF film with exceptional iodine capture and recyclability 磷烯-壳聚糖基COF膜具有优异的碘捕获性和可回收性

Case Studies in Chemical and Environmental Engineering Pub Date : 2026-06-01 Epub Date: 2026-02-28 DOI: 10.1016/j.cscee.2026.101357

Shaikha S. AlNeyadi , Hamda A. Almarar , Mohammed T. Alhassani , Ali H. Almarzooqi

{"title":"Phosphazene–chitosan based COF film with exceptional iodine capture and recyclability","authors":"Shaikha S. AlNeyadi , Hamda A. Almarar , Mohammed T. Alhassani , Ali H. Almarzooqi","doi":"10.1016/j.cscee.2026.101357","DOIUrl":"10.1016/j.cscee.2026.101357","url":null,"abstract":"<div><div>Radioactive iodine is a priority contaminant in nuclear-waste management because of its volatility, mobility, and toxicity, creating a need for sorbents that combine high capacity with stability, regenerability, and practical handling. Covalent organic frameworks (COFs) offer high surface area and tunable functionality for iodine capture, but many high-performing systems remain as powders that are difficult to deploy. Here, an imine-linked cyclotriphosphazene-based covalent organic framework (MA-COF; iodine uptake of 9.4 g g<sup>−1</sup> in powder form) is integrated with chitosan to fabricate flexible MA-COF@CS composite membranes. The imine-linked framework structure and permanent porosity of MA-COF are confirmed by complementary FT-IR spectroscopy, powder X-ray diffraction, nitrogen sorption analysis, and chemical stability tests. The optimized membrane (MA-COF:chitosan = 2:1, w/w) achieves an iodine vapor adsorption capacity of 10.50 ± 0.13 g g<sup>−1</sup> at 80 °C (n = 3) and removes 97.3 ± 0.5% of iodine from an I<sub>2</sub>/cyclohexane solution (C<sub>0</sub> = 300 mg L<sup>−1</sup>) at room temperature (n = 3). The membrane retains framework ordering after exposure to harsh solvents, remains stable up to ∼400 °C under N<sub>2</sub>, and maintains adsorption performance during repeated adsorption–desorption cycles. Regeneration is rapid in ethanol, with 73.6% and 80.4% of iodine desorbed within 10 and 60 min, respectively. These results demonstrate a processable COF–biopolymer membrane sorbent that bridges high-capacity iodine capture with operational reusability and handling requirements relevant to nuclear-waste remediation.</div></div>","PeriodicalId":34388,"journal":{"name":"Case Studies in Chemical and Environmental Engineering","volume":"13 ","pages":"Article 101357"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147384622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analytical study on the relationship among Land Surface Temperature, Land Use Land Cover, and spectral indices using geospatial techniques over Sikhottabong District, Laos 老挝Sikhottabong地区地表温度、土地利用、土地覆被与光谱指数关系的地理空间分析研究

Case Studies in Chemical and Environmental Engineering Pub Date : 2025-12-01 Epub Date: 2025-07-27 DOI: 10.1016/j.cscee.2025.101269

Jedtavong Thepvongsa , Erni Saurmalinda Butar Butar

{"title":"Analytical study on the relationship among Land Surface Temperature, Land Use Land Cover, and spectral indices using geospatial techniques over Sikhottabong District, Laos","authors":"Jedtavong Thepvongsa , Erni Saurmalinda Butar Butar","doi":"10.1016/j.cscee.2025.101269","DOIUrl":"10.1016/j.cscee.2025.101269","url":null,"abstract":"<div><div>This study examines the relationship between Land Surface Temperature and Land Use/Land Cover in Sikhottabong District, Laos, for the years 1992 and 2023, utilizing Landsat imagery from 1992 to 2023. Geospatial techniques in Google Earth Engine were used to assess Land Use/Land Cover transitions and estimate Land Surface Temperature. Results show that built-up areas have doubled, forests have declined by 30 %, and agricultural areas have increased by 24 %. Land Surface Temperature positively correlates with the Normalized Difference Built-up Index and the Normalized Difference Bare Soil Index, and negatively with the Normalized Difference Water Index. The findings highlight how urban expansion raises Land Surface Temperature, while water bodies help mitigate it. To address the observed rise in Land Surface Temperature, strategies such as enhancing urban green spaces, promoting afforestation, and improving urban water management are recommended to mitigate the heat island effect and support sustainable urban development in Sikhottabong District.</div></div>","PeriodicalId":34388,"journal":{"name":"Case Studies in Chemical and Environmental Engineering","volume":"12 ","pages":"Article 101269"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144763705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrated ultrafiltration and pervaporation process using PDMS/ZnO-modified PSf nanohybrid membranes for enhanced bioethanol purification from fermentation broth 利用PDMS/ zno修饰的PSf纳米杂化膜进行超滤和渗透蒸发的一体化工艺，以增强发酵液中生物乙醇的纯化

Case Studies in Chemical and Environmental Engineering Pub Date : 2025-12-01 Epub Date: 2025-09-05 DOI: 10.1016/j.cscee.2025.101278

Tutuk Djoko Kusworo , Febio Dalanta , Dita Aulia Azizah , Adrian Nataldipa Putra , Tasya Paramita Hendratmo , Muhammad Itsar Hanif , Ilham Alkian , Tonny Agustiono Kurniawan

引用次数: 0

Kinetics, adsorption mechanism, and economic viability of an eco-friendly amorphous carbon thin-film adsorbent synthesized from agricultural waste for removal of 2,4-dichlorophenol and 2,4,6-trichlorophenol in water environment 农业废弃物合成无定形碳薄膜吸附剂去除水中2,4-二氯酚和2,4,6-三氯酚的动力学、吸附机理及经济可行性

Case Studies in Chemical and Environmental Engineering Pub Date : 2025-12-01 Epub Date: 2025-07-28 DOI: 10.1016/j.cscee.2025.101268

Zaharaddeen N. Garba , Chavalit Ratanatamskul

引用次数: 0

Photocatalytic geopolymer membranes from Indonesian fly ash: TiO2 integration, stability, and methylene blue degradation 印尼粉煤灰光催化地聚合物膜：TiO2整合、稳定性和亚甲基蓝降解

Case Studies in Chemical and Environmental Engineering Pub Date : 2025-12-01 Epub Date: 2025-10-07 DOI: 10.1016/j.cscee.2025.101292

Hamzah Fansuri , Muhammad Naufal Alief , Nurlina Nurlina , Silvana Dwi Nurherdiana , Mohd Mustafa Al Bakri Abdullah , Subaer Subaer , Ratna Ediati , Witri Wahyu Lestari , Rino Rakhmata Mukti , Wahyu Prasetyo Utomo , Zeni Rahmawati

引用次数: 0

Potential application of a fruit-based natural deep eutectic solvent for water-in-crude-oil emulsification process for enhancing oil recovery and upstream oil applications 一种基于水果的天然深层共熔溶剂在原油包水乳化工艺中的潜在应用，以提高石油采收率和上游石油应用

Case Studies in Chemical and Environmental Engineering Pub Date : 2025-12-01 Epub Date: 2025-06-07 DOI: 10.1016/j.cscee.2025.101244

Arafat Husain , Noran Mousa , Basim Abu-Jdayil

{"title":"Potential application of a fruit-based natural deep eutectic solvent for water-in-crude-oil emulsification process for enhancing oil recovery and upstream oil applications","authors":"Arafat Husain , Noran Mousa , Basim Abu-Jdayil","doi":"10.1016/j.cscee.2025.101244","DOIUrl":"10.1016/j.cscee.2025.101244","url":null,"abstract":"<div><div>The growing demand for oil underscores the importance of efficient tertiary recovery methods. Among these, chemical enhanced oil recovery (CEOR) stands out due to its cost-effectiveness and lower capital investment. Natural deep eutectic solvents (NADES), composed of environmentally friendly and biodegradable components, offer a sustainable alternative to conventional toxic chemicals used in CEOR. This study explores the use of a citric acid/fructose/water NADES formulation for stabilizing emulsions of light crude oil and water, a critical factor for improving oil recovery efficiency. Key variables investigated include the number of moles of water used in NADES preparation, the water dilution ratio, and the molar ratios of citric acid to fructose (CA/Fr) and vice versa (Fr/CA). The study found that although water used in NADES preparation contributes to its structure, its quantity had little effect on emulsion stability. In contrast, optimal water dilution and adjusted CA/Fr molar ratios significantly improved both emulsion stability and viscosity. Injection of the NADES formulation led to effective emulsion stabilization using seawater and brine. Moreover, the NADES injection reduced interfacial tension from 19 to 5.02 mN/m and contact angle from 72° to 30.8°, promoting a water-wet condition favorable for oil displacement. These findings were further validated by rheological tests, which demonstrated increased viscosity and emulsion stability. Overall, this study highlights the potential of NADES as a sustainable, high-performance solvent in CEOR, offering both environmental and operational advantages for future oil extraction technologies.</div></div>","PeriodicalId":34388,"journal":{"name":"Case Studies in Chemical and Environmental Engineering","volume":"12 ","pages":"Article 101244"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0