Water Resources and Industry最新文献_第2页

Application of response surface methodology in optimizing MOF5@Fe3O4 catalyst for activating peroxymonosulfate in the degradation of reactive black 5 dye

IF 4.5 3区工程技术

Water Resources and Industry Pub Date : 2025-01-07 DOI: 10.1016/j.wri.2025.100278

Nezamaddin Mengelizadeh , Najmeh Ahmadi , Davoud Balarak

{"title":"Application of response surface methodology in optimizing MOF5@Fe3O4 catalyst for activating peroxymonosulfate in the degradation of reactive black 5 dye","authors":"Nezamaddin Mengelizadeh , Najmeh Ahmadi , Davoud Balarak","doi":"10.1016/j.wri.2025.100278","DOIUrl":"10.1016/j.wri.2025.100278","url":null,"abstract":"<div><div>Magnetic nanoparticles (Fe<sub>3</sub>O<sub>4</sub>) were loaded onto metal-organic framework (MOF-5) as an activator for peroxymonosulfate (PMS) in the decomposition of the dye reactive black 5 (RB5). Modeling and optimization of operational parameters were performed using response surface methodology coupled with central composite design (RSM-CCD). The maximum removal efficiency of RB5 was predicted under laboratory conditions, including pH of 11, catalyst dosage of 1 g/L, RB5 concentration of 10 mg/L, temperature of 50 °C, and reaction time of 60 min. High values of confidence coefficient (R<sup>2</sup>) and F-value indicated that the present model could explain most of the data and could also be used to predict efficiency within a design space. Also, the adsorption capacity was equal to 99.2 mg/g. The efficiency of the MOF-5@Fe<sub>3</sub>O<sub>4</sub>/PMS system in removing RB5 was higher than that of standalone systems such as adsorption and PMS. Stability tests revealed that the synthesized catalyst could be reused for six consecutive reaction cycles with a negligible decline in dye removal efficiency (<4.3 %) and total organic carbon (TOC) removal (<5.50 %). Trapping experiments using ethanol and tert-butyl alcohol scavengers confirmed the presence of sulfate (SO<sub>4</sub><sup>•-</sup>) and hydroxyl (<sup>•</sup>OH) radicals in dye decomposition. The removal efficiency of COD and the BOD<sub>5</sub>/COD ratio improved with increasing catalytic time, reaching 87.93 % and 0.84, respectively, at 120 min. The LC<sub>50</sub> value of untreated and treated RB5 solutions was examined using <em>Daphnia magna</em>, and findings showed an increase in the LC<sub>50</sub> value of the treated solution.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"33 ","pages":"Article 100278"},"PeriodicalIF":4.5,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143161299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and computational investigation of cold atmospheric plasma/visible-light/N-TiO2 in treatment of synthetic and real wastewaters

IF 4.5 3区工程技术

Water Resources and Industry Pub Date : 2024-12-24 DOI: 10.1016/j.wri.2024.100276

Mohsen Sheydaei, Parisa Moharramkhani, Baharak Ayoubi-Feiz, Farhad Khodabandeloo

{"title":"Experimental and computational investigation of cold atmospheric plasma/visible-light/N-TiO2 in treatment of synthetic and real wastewaters","authors":"Mohsen Sheydaei, Parisa Moharramkhani, Baharak Ayoubi-Feiz, Farhad Khodabandeloo","doi":"10.1016/j.wri.2024.100276","DOIUrl":"10.1016/j.wri.2024.100276","url":null,"abstract":"<div><div>Cold atmospheric plasma and visible-light photocatalysis (CAPVP) is considered as an effective advanced oxidation process. Experimental and computational investigation of CAPVP application for treatment of synthetic and industrial wastewaters was conducted for the first time in this work. N-TiO<sub>2</sub> as a visible-light photocatalyst was synthesized and characterized. The CAPVP reactor was developed and its performance in synthetic (cefixime) and real wastewater (Eshtehard Industrial Zone, Iran) was investigated. The effect of catalyst dosage, discharge voltage, inlet gas, visible-light power, and electrode distance from water surface was investigated on the cefixime degradation efficiency. The combined CAPVP with catalyst dosage = 1 g L<sup>−1</sup>, air flow rate = 5 L min<sup>-1</sup> under visible-light power of 36 W with discharge voltage = 35 kV and the electrode-water surface distance of 5 mm caused about 95 % cefixime degradation after 20 min. A three-layered feed forward back propagation artificial neural network was developed for analysis of different variables influence on the CAPVP process. Findings showed that the catalyst dosage and discharge voltage had the highest effect on the degradation among the investigated variables. Also, the comparative experiments showed that the efficiency of the CAPVP was higher than that of one stage photocatalysis and plasma processes and showed a synergistic coefficient of 3.06. Furthermore, the CAPVP was used to treat the effluent of the real industrial wastewater and the effect of the catalyst dosage and discharge voltage was investigated on treatment efficiency. The results indicated that the combined process for 240 min reduced the COD of the effluent of Eshtehard Industrial Zone up to 95 %.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"33 ","pages":"Article 100276"},"PeriodicalIF":4.5,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The hydrological hazard in artificially-drained mining and post-mining areas–A significant environmental aspect requiring systemic management

IF 4.5 3区工程技术

Water Resources and Industry Pub Date : 2024-12-17 DOI: 10.1016/j.wri.2024.100275

Dariusz Ignacy

{"title":"The hydrological hazard in artificially-drained mining and post-mining areas–A significant environmental aspect requiring systemic management","authors":"Dariusz Ignacy","doi":"10.1016/j.wri.2024.100275","DOIUrl":"10.1016/j.wri.2024.100275","url":null,"abstract":"<div><div>This paper describes a case study of a highly urbanized artificially-drained mine subsidence area massively impacted by mining. Within this area, the surface has subsided over 40 m and the area threatened by flooding is 18 times larger than the observable inundation today. This surface relief disturbance and hydrological hazard is shown using the author's innovative concepts in the form of relative elevation models and four hydrological hazard frameworks. This paper contains analyses supporting the main thesis that in highly transformed and artificially-drained mining and post-mining areas, the hydrological hazard should be classified as a significant environmental aspect requiring systemic management. It outlines in detail the above premise by describing the inter-related mining and non-mining processes causing changes to the hydrological hazard leading to the subsequent complexity of mitigation measures. The introduction of relative elevation models and newly-defined hydrological hazard frameworks are projected onto a site-specific hydromorphologic map. This map forms the hydrological basis for identifying and dimensioning existing flood-related geohazards. The innovative contribution is the ability to incorporate time-related data to assess past and future hydrological hazards. This knowledge makes it possible to simplify flood-related geohazard mitigation. Additionally, it affords policy-makers a range of options regarding future spatial planning to optimize land-use according to societal will. To date, environmental management systems do not sufficiently take into account the mining-induced hydrological hazard in mine subsidence areas. The main goal of this paper is to show that the existing gap in management capability of the hydrological hazard and flood-related geohazards and risks can be resolved by the author's novel site-specific decision support tools.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"33 ","pages":"Article 100275"},"PeriodicalIF":4.5,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143161298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Si-N doped eucalyptus biochar supported TiO2-ZnO (Si-N@EBC/3TiZn) as novel solar light responsive photocatalyst for enhanced degradation of cationic dye in aqueous solution

IF 4.5 3区工程技术

Water Resources and Industry Pub Date : 2024-12-16 DOI: 10.1016/j.wri.2024.100274

Adeyinka S. Yusuff , Lukman S. Mustapha , Khairia M. Al-Ahmary , Elham A. Alzahrani , Jamelah S. Al-Otaibi , Mazen R. Alrahili

{"title":"Si-N doped eucalyptus biochar supported TiO2-ZnO (Si-N@EBC/3TiZn) as novel solar light responsive photocatalyst for enhanced degradation of cationic dye in aqueous solution","authors":"Adeyinka S. Yusuff , Lukman S. Mustapha , Khairia M. Al-Ahmary , Elham A. Alzahrani , Jamelah S. Al-Otaibi , Mazen R. Alrahili","doi":"10.1016/j.wri.2024.100274","DOIUrl":"10.1016/j.wri.2024.100274","url":null,"abstract":"<div><div>A novel Si-N@EBC/3TiZn composite was developed, analyzed and utilized as a photocatalyst for methylene blue (MB) degradation. The Si-N@EBC/3TiZn at various compositions of Si-N@EBC was investigated and exhibited excellent photoactivity for degradation reaction when the Si-N@EBC composition in the photocatalyst was 30%. Textural analysis showed that 30%Si–N@EBC/3TiZn was a mesoporous material with 80.3 m<sup>2</sup>/g specific surface area and 19.3 nm pore diameter, while optical analysis showed a remarkable reduction in the band gap of the sample, making it a solar light responsive photocatalyst. The percent MB removal from the photodegradation process was 98.61 <span><math><mrow><mo>±</mo></mrow></math></span> 0.21% at optimal initial MB concentration of 24.7 mg/L, pH of 9.84, 30%Si–N@EBC/3TiZn dosage of 1.16 g/L and irradiation period of 51.7 min. The pseudo-first-order L-H model provided a good fit to the MB photocatalytic degradation data with high <span><math><mrow><msup><mi>R</mi><mn>2</mn></msup></mrow></math></span> values. 30%Si–N@EBC/3TiZn was recycled eight times, with 90.78% degradation occurring at the 8th run.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"33 ","pages":"Article 100274"},"PeriodicalIF":4.5,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical simulations of solid suspensions in a gravity thickener

IF 4.5 3区工程技术

Water Resources and Industry Pub Date : 2024-12-12 DOI: 10.1016/j.wri.2024.100273

Mahmoud Alzoubi , Antoine Monot , David Rancourt , Sébastien Poncet

{"title":"Numerical simulations of solid suspensions in a gravity thickener","authors":"Mahmoud Alzoubi , Antoine Monot , David Rancourt , Sébastien Poncet","doi":"10.1016/j.wri.2024.100273","DOIUrl":"10.1016/j.wri.2024.100273","url":null,"abstract":"<div><div>Reducing the overall water and energy consumptions in deep mines is a necessity in moving toward a more sustainable mining industry. Underground water treatment is a key requirement to achieve this goal. This study numerically investigates the dynamics of a continuous decantation process as a technique to recycle and reuse wastewater in deep mines without pumping it to the surface. A three-dimensional mathematical model that considers the conservation of mass and momentum has been derived, validated, and implemented to simulate the turbulent two-phase flow inside a decantation tank. The validation is achieved by comparing the numerical simulations to experimental data from the literature for two reference cases: (i) turbulent slurry flows (water and glass particles) in a horizontal pipe; (ii) turbulent swirling flow of limestone ore - water in a hydrocyclone. The framework of the validated model has been extended to examine the effect of various design parameters on the efficiency of a full-scale conical-shaped decantation tank (diameter of 1 [m] and total height of 0.97 [m]). The inlet values of flowrate and particle volume concentration are fixed to 50 [GPM] and 4.5 [%], respectively. The diameter and density of the solid particles are equal to 150 [<em>μ</em>m] and 1.15, respectively. The results compare the efficiency of 20 different designs of the decantation tank (with/without inner cylinder, scrapers, feedwell, …) in terms of the overflow water quality. The results indicate that the efficiency of the decantation tank increases with inner surface area at fixed volume. Also the plain decanter with scrapers exhibits the highest efficiency, whereas the design with the center extract performs the worst.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"33 ","pages":"Article 100273"},"PeriodicalIF":4.5,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Groundwater potential in mining regions for drinking water supply: A case study of the Żelatowa intake (Chrzanów, Poland) 矿区地下水用于饮用水供应的潜力：Żelatowa取水口（波兰Chrzanów）案例研究

IF 4.5 3区工程技术

Water Resources and Industry Pub Date : 2024-11-20 DOI: 10.1016/j.wri.2024.100272

Katarzyna Wawrzonek , Katarzyna Wątor , Mateusz Topolewski , Agata Kasprzak , Ewa Kmiecik

{"title":"Groundwater potential in mining regions for drinking water supply: A case study of the Żelatowa intake (Chrzanów, Poland)","authors":"Katarzyna Wawrzonek , Katarzyna Wątor , Mateusz Topolewski , Agata Kasprzak , Ewa Kmiecik","doi":"10.1016/j.wri.2024.100272","DOIUrl":"10.1016/j.wri.2024.100272","url":null,"abstract":"<div><div>Sustainable development of groundwater resources in regions affected by mining activity requires a comprehensive view of the problem from both a hydrogeological and hydrogeochemical perspective. As groundwater serves as a main source of drinking water in many regions of the world, it is necessary to recognise the potential of mine waters and their real influence on its quality. This study analyses the long-term dynamics of changes in drinking water quality from deep wells S1, S2, and S3 comprising the Żelatowa intake (Chrzanów, Poland), which is located in an area of intensive mining activity. Analysis of the data showed that mining operations are affecting water quality, as observed by upward trends for electrical conductivity, total hardness, and concentrations of certain ions between 2016 and 2021, and downward trends from 2022 onwards. The greatest adverse changes in water quality were observed in well S2 (Fe<sup>2+</sup>, Mn<sup>2+</sup>, SO<sub>4</sub><sup>2−</sup> concentrations and total hardness do not meet the requirements of Directive 2020/2184), the water requiring mixing with water from other wells to ensure that it is of suitable quality for drinking purposes. The PHREEQC software was successfully used to predict the chemical composition of the final mixture, which meets the requirements of appropriate regulations. The water from the Żelatowa intake can have an adverse effect on the water supply system, which has been proven by several scaling and corrosion indices. Continuous monitoring of the physicochemical parameters of these waters is essential to ensure the safety of the drinking water supply for the surrounding population.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"32 ","pages":"Article 100272"},"PeriodicalIF":4.5,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of the effectiveness of organic compounds from the amine group in precipitating ions from soda production wastewater 胺类有机化合物沉淀制碱废水中离子的效果分析

IF 4.5 3区工程技术

Water Resources and Industry Pub Date : 2024-10-02 DOI: 10.1016/j.wri.2024.100271

Janina Piekutin , Adam Gołub , Jacek Leszczyński

{"title":"Analysis of the effectiveness of organic compounds from the amine group in precipitating ions from soda production wastewater","authors":"Janina Piekutin , Adam Gołub , Jacek Leszczyński","doi":"10.1016/j.wri.2024.100271","DOIUrl":"10.1016/j.wri.2024.100271","url":null,"abstract":"<div><div>Treating wastewater from the soda industry is a complicated and lengthy process, requiring a great deal of labor and financial resources. No method has yet been developed to eliminate the environmental damage caused by the soda industry entirely. The leakage of highly contaminated soda production wastewater into soils, groundwater, and surface water can cause corrosion of water infrastructure and deterioration of water quality for both drinking and agricultural use. Soil contamination from post-production wastewater leads to erosion and adversely affects vegetation. The work focused on the removal of chloride, sulfate, calcium, and sodium from soda production wastewater by precipitation using organic solvents such as isopropylamine (IPA), diisopropylamine (DIPA), propylamine (PA) and ethylamine (EA) in various proportions. Statistical modelling through Bayesian beta regression was used to select the amine most effectively removing the tested ions in precipitate form. The effect of precipitating agent dosage on the pH and conductivity of the solution was also investigated. Samples of wastewater obtained from the soda industry were characterized by high values of pH (up to 11.9), specific electrolytic conductivity (up to 128 mS cm<sup>−1</sup>), and high concentrations of sodium (up to 13 g L<sup>−1</sup>), chloride (up to 60 g L<sup>−1</sup>) and calcium (up to 24 g L<sup>−1</sup>) ions. Solvent-based precipitation showed that organic solvents are effective in precipitating salts from wastewater from the soda industry. Sulfate and chloride removal efficiencies of 85.1 and 34 %, respectively, were observed. Statistical analysis showed that isopropylamine was the most effective amine for ion removal.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"32 ","pages":"Article 100271"},"PeriodicalIF":4.5,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142532490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable water treatment: Harnessing mining waste as catalysts for Sicomet green degradation 可持续水处理：利用采矿废料作为催化剂实现 Sicomet 绿色降解

IF 4.5 3区工程技术

Water Resources and Industry Pub Date : 2024-09-27 DOI: 10.1016/j.wri.2024.100269

Mohammed Kebir , Hichem Tahraoui , Imene Kahina Benramdane , Noureddine Nasrallah , Selma Toumi , Jie Zhang , Abdeltif Amrane

{"title":"Sustainable water treatment: Harnessing mining waste as catalysts for Sicomet green degradation","authors":"Mohammed Kebir , Hichem Tahraoui , Imene Kahina Benramdane , Noureddine Nasrallah , Selma Toumi , Jie Zhang , Abdeltif Amrane","doi":"10.1016/j.wri.2024.100269","DOIUrl":"10.1016/j.wri.2024.100269","url":null,"abstract":"<div><div>This paper presents a novel circular economy approach to water remediation that focuses on creating sustainable systems by utilizing mining waste from El-Ouenza, Tebessa, in the east of Algeria. Waste materials are employed as catalysts in Fenton and photo-Fenton processes. Two cases were studied: the conventional and the modified heterogeneous photo-Fenton at a pH of 3 and under modified pH conditions for degrading Sicomet Green food dye ZS120. Catalysts were characterized through various analyses. Catalyst performance and dye degradation were examined for raw and calcined waste at 500 °C. Parameters like catalyst amount, sodium sulfite concentration, oxalic acid, and pH were optimized for both systems, with and without ligand. The first system achieved 91.5 % mineralization using 0.15 g L<sup>−1</sup> catalyst, pH of 3, and 0.45 mM Na<sub>2</sub>SO<sub>3</sub> in 90 min under sunlight. The second reached 78.5 % efficiency with variable conditions. Kinetic models demonstrated a first-order model for both photo-Fenton degradation and mineralization under sunlight. These findings guide eco-friendly dye degradation via mining waste-based catalysts in photo-Fenton systems, supporting sustainable wastewater treatment.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"32 ","pages":"Article 100269"},"PeriodicalIF":4.5,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142423254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Industrial water consumption index: A new bridge between water consumption and socioeconomic development 工业用水指数：水消耗与社会经济发展之间的新桥梁

IF 4.5 3区工程技术

Water Resources and Industry Pub Date : 2024-09-26 DOI: 10.1016/j.wri.2024.100270

Chenkai Cai , Caijie Yang , Xuan Lu , Yan Chen , Jinhua Wen , Jing Wang , Ruotong Wang , Zupeng Zhang , Xinyi Shen

{"title":"Industrial water consumption index: A new bridge between water consumption and socioeconomic development","authors":"Chenkai Cai , Caijie Yang , Xuan Lu , Yan Chen , Jinhua Wen , Jing Wang , Ruotong Wang , Zupeng Zhang , Xinyi Shen","doi":"10.1016/j.wri.2024.100270","DOIUrl":"10.1016/j.wri.2024.100270","url":null,"abstract":"<div><div>Regional water consumption is closely linked to socioeconomic development trends; however, studies that analyze and evaluate socioeconomic development trends based on water consumption data are lacking. This study established a new general index, the industrial water consumption index (IWCI), using several variables from water consumption data through the entropy weight method and tested the index in Jiaxing City, China. The results showed that the relationship between water consumption and socioeconomic development varied depending on different industrial divisions. The IWCI, established based on water consumption data was highly sensitive to changes in socioeconomic development, especially rapid changes. Compared to the raw water consumption data, the IWCI presented a better performance in evaluation indicators for the selected several divisions, with a Pearson correlation coefficient ranging from 0.70 to 0.85 and a normalized mutual information ranging from 0.31 to 0.45. Overall, the IWCI provides an effective way to evaluate socioeconomic development trends by relying solely on water consumption data, particularly for industrial divisions where water plays an important role in production. The index allows managers to quickly assess and analyze socioeconomic development trends and develop corresponding response measures.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"32 ","pages":"Article 100270"},"PeriodicalIF":4.5,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of a rubber nanocomposite for oil/water separation using surface functionalized/silanized carbon black nanoparticles 利用表面功能化/硅烷化炭黑纳米颗粒制备用于油水分离的橡胶纳米复合材料

IF 4.5 3区工程技术

Water Resources and Industry Pub Date : 2024-09-18 DOI: 10.1016/j.wri.2024.100268

Fatemeh Ghasemi , Masoud Jamshidi , Reza Ghamarpoor

{"title":"Preparation of a rubber nanocomposite for oil/water separation using surface functionalized/silanized carbon black nanoparticles","authors":"Fatemeh Ghasemi , Masoud Jamshidi , Reza Ghamarpoor","doi":"10.1016/j.wri.2024.100268","DOIUrl":"10.1016/j.wri.2024.100268","url":null,"abstract":"<div><div>Clean water is the basic need of living organisms on the earth. Oil spills to free waters is one of the most important threats to living beings. It has been believed that using sorbents is the most effective method for this purpose. In this research, usage of tire rubber with improved hydrophobic properties is considered. For this purpose, carbon black nanoparticles (CBNs) were surface modified with vinyltrimthoxysilane (VTMS) at concentrations of 1, 5 and 10 by sol-gel method. Before, the CBNs were hydroxylated to increase silane grafting content. The surface modified was evaluated using XPS, FTIR, TGA, BET and FESEM analysis. Results showed a great change in the CBNs nature from hydrophilic to hydrophobic after silane modification that could help in more oil absorption and water repletion at the same time. In fact, the water contact angle (WCA) of the CBNs changed from 40 to 135°. The pure and silane grafted CBNs were added to the tire tread compound to prepare elastomeric nanocomposites as oil sorbent. The results showed that the modified nanocomposite had a higher reinforcement index than the samples contained pure and hydroxylated CBNs. The effects of CBNs on WCA, OCA and oil absorption capacity of the samples were also determined. It was found that silane modification a considerable increase in the WCA from 61.2° to 125.03° and a decrease in the oil contact angle (OCA) from 70.01° to 17.74°. Also, the oil absorption capacity of rubber enhanced from 0.55 to 1.95 g/g.</div></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"32 ","pages":"Article 100268"},"PeriodicalIF":4.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2212371724000301/pdfft?md5=37f6529fb882bddb808e50f6021262d4&pid=1-s2.0-S2212371724000301-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142311746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0