Journal of Water Chemistry and Technology最新文献_第7页

Elimination of Ciprofloxacin from Aqueous Solution by Ultrasonic-Assisted Adsorption Using Chitosan Crosslinked Graphene Oxide Nanoparticles 利用壳聚糖交联氧化石墨烯纳米颗粒在超声波辅助下吸附消除水溶液中的环丙沙星

IF 0.5 4区化学

Journal of Water Chemistry and Technology Pub Date : 2024-03-04 DOI: 10.3103/S1063455X24010089

Uplabdhi Tyagi, Jatin Kuhar, Vinita Khandegar, Sanigdha Acharya, Neeru Anand, Arinjay Jain

{"title":"Elimination of Ciprofloxacin from Aqueous Solution by Ultrasonic-Assisted Adsorption Using Chitosan Crosslinked Graphene Oxide Nanoparticles","authors":"Uplabdhi Tyagi, Jatin Kuhar, Vinita Khandegar, Sanigdha Acharya, Neeru Anand, Arinjay Jain","doi":"10.3103/S1063455X24010089","DOIUrl":"10.3103/S1063455X24010089","url":null,"abstract":"Aquatic life is largely affected by the toxic nature of pharmaceutical waste that is released into the environment and affects nature at every level. To preserve nature, it is very important to remove pharmaceutical waste, such as ciprofloxacin (CIP) and other antibiotics from nature. In this study, chitosan-graphene-based eco-friendly nano-adsorbent (CS-GO-NPs) was synthesized for the removal of CIP from an aqueous medium using ultrasonic-assisted adsorption. A detailed analysis of process conditions including pH, initial concentration, adsorbent dose, and temperature was performed. Results were found to be significant and more than 94% removal efficiency was achieved using an optimum concentration of 200 mg/L, 5 pH, and adsorption time of 20 min. Further, batch adsorption data was used to study the kinetic and thermodynamic behavior and an isotherm study was performed to determine the adsorbate-adsorbent interaction. Experimental results showed a significant agreement with the theoretical values and more than 0.99 regression coefficient (R2) values were obtained for pseudo-second-order and Freundlich isotherm. Further, an adsorption mechanism was also proposed for the CIP-(CS-GO-NPs) system, and found that film diffusion dominates the process, while pore diffusion also plays a vital role in devising an effective eco-friendly adsorbent. The proposed study provides an effective and sustainable route for the management of toxic pharmaceutical wastes using chitosan-graphene-based nano-adsorbent under mild process conditions.","PeriodicalId":680,"journal":{"name":"Journal of Water Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140035696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial Distribution of Contaminants in Glacial Streams and River Tributaries in the Ecologically Sensitive Regions of Gilgit Baltistan, Pakistan 巴基斯坦吉尔吉特-巴尔蒂斯坦生态敏感地区冰川溪流和河流支流中污染物的空间分布

IF 0.5 4区化学

Journal of Water Chemistry and Technology Pub Date : 2024-03-04 DOI: 10.3103/S1063455X24010016

Zakir Ullah Baig, Khadim Hussain, Muhammad Naveed Javed, Jawad Nasir, Syed Jarrar Hussain, Muhammad Shafiq, Qandeel Zehra, Nasir Hussain

{"title":"Spatial Distribution of Contaminants in Glacial Streams and River Tributaries in the Ecologically Sensitive Regions of Gilgit Baltistan, Pakistan","authors":"Zakir Ullah Baig, Khadim Hussain, Muhammad Naveed Javed, Jawad Nasir, Syed Jarrar Hussain, Muhammad Shafiq, Qandeel Zehra, Nasir Hussain","doi":"10.3103/S1063455X24010016","DOIUrl":"10.3103/S1063455X24010016","url":null,"abstract":"The China-Pakistan Economic Corridor (CPEC) between China and Pakistan passes through the environmentally fragile region of the Himalayas−Karakorum−Hindukush (HKH). Surging human influence in the form of transportation and tourism may pose a potential threat to the socio-environmental sustainability especially, the water resources of the region. Therefore, it is important to evaluate the status and hydrogeochemistry of freshwater in mountainous catchments. For this purpose, water samples were collected from the Hunza, Gilgit, and Indus River Basins from 2019 to 2020. The physicochemical and biological characteristics of surface water were investigated using the water quality index (WQI), multivariate statistics, Piper diagram, and Gibbs plots. The results revealed high seasonal variability in the hydrochemistry of water samples in all basins. Heavy metals (HM) i.e., arsenic (As), and lead (Pb) were detected in more than 50% of total water samples, whereas cadmium (Cd) and mercury (Hg) were detected in less than 15% of total water samples. 82% of water samples collected during summer and 48% in winter were contaminated with bacterial contamination (Escherichia coli (E. coli) and total coliform (T. coli)). Piper diagram and Gibbs plot suggested that rock weathering and dissolution of carbonate rocks are the dominating factors controlling the chemistry of glacial streams and river water. The results of this study have important implications for policymakers, regulators, and practitioners involved in water and environmental management across CPEC.","PeriodicalId":680,"journal":{"name":"Journal of Water Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140035397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of pH on the Oxidation of Saxitoxin and Anatoxin-a with Chlorine pH 值对氯氧化沙西毒素和蚂蚁毒素-a 的影响

IF 0.5 4区化学

Journal of Water Chemistry and Technology Pub Date : 2024-03-04 DOI: 10.3103/S1063455X2401003X

Laura Davila Garcia, Justin Rorar, Teresa J. Cutright, Madison Summers, Xiaozhen Mou

引用次数: 0

Assessing the Efficiency of Wastewater Treatment in Steel-galvanizing Industries: A Case Study of Industrial ETPs in Chattogram, Bangladesh 评估钢铁镀锌行业的废水处理效率：孟加拉国 Chattogram 工业污水处理设施案例研究

IF 0.5 4区化学

Journal of Water Chemistry and Technology Pub Date : 2024-03-04 DOI: 10.3103/S1063455X24010053

Md. Kamrul Hassan, M. Mehedi Hasan Rocky, M. K. Mohammad Ziaul Hyder

{"title":"Assessing the Efficiency of Wastewater Treatment in Steel-galvanizing Industries: A Case Study of Industrial ETPs in Chattogram, Bangladesh","authors":"Md. Kamrul Hassan, M. Mehedi Hasan Rocky, M. K. Mohammad Ziaul Hyder","doi":"10.3103/S1063455X24010053","DOIUrl":"10.3103/S1063455X24010053","url":null,"abstract":"This study aims to investigate the wastewater treatment process and assess the industrial wastewater quality before and after being treated by effluent treatment plants (ETPs) of steel-galvanizing industries located in Mirsharai, Sitakunda, Karnaphuli, and Kalurghat industrial areas of Chattogram, Bangladesh. Wastewater samples were collected from six steel-galvanizing industries during the dry season and monsoon season. The water quality was evaluated based on five physiсochemical parameters, namely pH, dissolved oxygen (DO), biological oxygen demand (BOD5), chemical oxygen demand (COD), total dissolved solids (TDS), as well as the concentration of heavy metals including Fe, Cu, Cr, Ni, and Cd. The measured data were compared with the national and international standards established for ensuring water safety. It was observed that steel plants generate complex wastewater rich in highly dissolved solids and heavy metal ions. Although pH, BOD5, and COD values were within acceptable ranges in these industries, high TDS values were observed. The Fe concentration of discharged stream areas ranged from 0.992 to 16.89 mg/L, exceeding the guideline limits. Additionally, the Cr concentration in both the inlet and outlet exhibited high concentrations, surpassing the standard limits, particularly those set by the United States Environmental Protection Agency (US EPA). Thus, steel-galvanizing industries are likely contributing to water pollution through the discharge of wastewater, particularly in terms of Fe and Cr. The efficiency of ETPs varied for different metals. Furthermore, this study highlighted the importance of the effective design of ETPs to mitigate potential pollution and promote sustainable practices.","PeriodicalId":680,"journal":{"name":"Journal of Water Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140035359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of the Environmental Safety of Water in a Small River for Economic Use 小河经济用水环境安全评价

IF 0.5 4区化学

Journal of Water Chemistry and Technology Pub Date : 2024-03-04 DOI: 10.3103/S1063455X24010107

Y.A. Zalenska, V. A. Kopilevych

{"title":"Evaluation of the Environmental Safety of Water in a Small River for Economic Use","authors":"Y.A. Zalenska, V. A. Kopilevych","doi":"10.3103/S1063455X24010107","DOIUrl":"10.3103/S1063455X24010107","url":null,"abstract":"Changes in the hydrochemical regime of a small river due to anthropogenic load lead to a deterioration in water quality. Pollution of water bodies can affect the volume of production in the fisheries industry. Therefore, a pressing issue for modern fisheries is the continuous monitoring and comprehensive ecological assessment of the quality of surface waters. The study aims to investigate the water quality index (WQI) for fish farming in the Umanka River within the city limits of Uman. As a typical urban river, Umanka experiences the influence of slow water flow, constant discharge of polluted water, ecological degradation, and weak self-purification. Therefore, the need to study and improve the water quality of the Umanka River is quite evident. WQIs are calculated based on the results of analytical measurements of hydrochemical properties of water, such as dissolved oxygen, pH, total (bicarbonate) alkalinity, total mineralization, nitrates, nitrites, ammonium nitrogen, etc. Confirmation of a moderate increase in the concentration of ion composition indicators in the water section studied after the city of Uman is provided by the results of WQI calculations for fish farming during 2021 and 2022 for the analyzed water samples in the direction of the Umanka River flow. Judging by the QWI values for fisheries purposes in 2021, waters from sampling points 1–5 are characterized as “Satisfactory,” with the exceptions being points 6 as “Good” and 7 as “Very Poor.” In 2022, water from the study area in the city of Uman (points 1 and 2) is characterized as “Good,” while the others (points 3–7) are considered “Satisfactory.” Thus, there is an observed deterioration in water quality for fish farming in the research area after the city of Uman.","PeriodicalId":680,"journal":{"name":"Journal of Water Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140035846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seasonal Variation Characteristics of Karst Groundwater Chemistry and Water Quality Assessment in the Northern Part of the Baiquan Spring Area 白泉水北部地区岩溶地下水化学成分的季节变化特征及水质评价

IF 0.5 4区化学

Journal of Water Chemistry and Technology Pub Date : 2024-03-04 DOI: 10.3103/S1063455X24010119

Zhang Hongyun, Sun Hui, Bian Kai, Niu Yutong, Yang Hao, Yang Junpeng, Balaji Panchal

{"title":"Seasonal Variation Characteristics of Karst Groundwater Chemistry and Water Quality Assessment in the Northern Part of the Baiquan Spring Area","authors":"Zhang Hongyun, Sun Hui, Bian Kai, Niu Yutong, Yang Hao, Yang Junpeng, Balaji Panchal","doi":"10.3103/S1063455X24010119","DOIUrl":"10.3103/S1063455X24010119","url":null,"abstract":"Karst groundwater is the main water supply source for human consumption and living, and it is important to study the karst groundwater resources to ensure people’s water supply needs. In this study, the northern part of the Baiquan spring area in Hebei Province was taken as a research object. Based on the hydrogeochemical approach, the characteristics and mechanism of seasonal variations of karst groundwater in the area were studied, and the groundwater quality was evaluated. This paper mainly uses multivariate statistics, the Piper trilinear diagram, the ion ratio coefficient, and the water quality index (WQI) as water quality assessment methods. The sequence of the main ion abundance is as follows: Ca2+ > Mg2+ > Na+ > K+, ({text{HCO}}_{3}^{ - }) > ({text{SO}}_{4}^{{2 - }}) > Cl–, and the ion content showed a downward trend from the dry season to the wet season. The hydrochemical type in the dry season has changed compared with that in the wet season. The rate of carbonate rock dissolving in most of the study area waters in the wet season was higher than in the dry season. WQI calculation results show that most of the groundwater belongs to class II water quality, and the water quality in the wet season is better than that in the dry season. Studying different seasonal changes in groundwater chemistry can provide a reference for an in-depth understanding of karst groundwater chemistry characteristics and water resources protection in the spring area.","PeriodicalId":680,"journal":{"name":"Journal of Water Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140035729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimating the Effect of the Flint Mineral on Water Quality by the Results of Biotesting on Crustaceans 用甲壳类生物试验评价燧石矿物对水质的影响

IF 0.6 4区化学

Journal of Water Chemistry and Technology Pub Date : 2023-11-16 DOI: 10.3103/S1063455X23060061

A. V. Nanieva, Yu. K. Kutsokon, R. D. Chebotaryova, V. F. Kovalenko, S. Yu. Bashtan, S. V. Remez

引用次数: 0

Efficient Treatment of Industrial Wastewater Using a Mixture of Sugarcane Bagasse-Based Carbon Nanomaterials and TiO2 Nanoparticles 甘蔗甘蔗渣基碳纳米材料与二氧化钛纳米颗粒混合有效处理工业废水

IF 0.6 4区化学

Journal of Water Chemistry and Technology Pub Date : 2023-11-16 DOI: 10.3103/S1063455X23060024

Arpita Bhattacharya, Kiran Acharya, Jagjiwan Mittal

{"title":"Efficient Treatment of Industrial Wastewater Using a Mixture of Sugarcane Bagasse-Based Carbon Nanomaterials and TiO2 Nanoparticles","authors":"Arpita Bhattacharya, Kiran Acharya, Jagjiwan Mittal","doi":"10.3103/S1063455X23060024","DOIUrl":"10.3103/S1063455X23060024","url":null,"abstract":"A novel study was undertaken for cleaning the wastewater from the paint industry by using the combinations of carbon nanoparticles produced from waste material using different methods and TiO2 nanoparticles. Carbon nanoparticles were produced from sugarcane bagasse (a waste material) by using three different methods, namely charring in a muffle furnace (C1), heating in the air (C2), and treating with sulfuric acid (C3). Atomic force microscopy demonstrated the smaller size of C2 and C3 nanoparticles as compared to C1. Further, Raman spectroscopy displayed fewer defects in C1 nanoparticles than in C2 and C3 but better graphene structure in C2. Fourier-transform infrared (FTIR) spectroscopy study revealed the degraded structure of carbon nanoparticles prepared by using sulfuric acid (C3) with more functional groups than C1 and C2. A comparative study using UV-visible spectroscopy showed that the sulfuric acid-treated carbon nanomaterials (C3) were more efficient in removing the contaminants from wastewater from the paint industry because of their small size and functional groups. When carbon nanoparticles were used in the combinations with TiO2 nanoparticles, study showed that the combination of C3 with 10% by wt TiO2 nanoparticles were the best for clearing wastewater. Mechanisms are proposed for the synthesis of TiO2 nanoparticles and their role along with carbon nanoparticles (C3) for the removal of contamination from wastewater.","PeriodicalId":680,"journal":{"name":"Journal of Water Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient Removal of Nickel from Wastewater by Microwave-Assisted Synthesized Nickel Surface Ion Imprinted Polymer 微波辅助合成镍表面离子印迹聚合物高效去除废水中的镍

IF 0.6 4区化学

Journal of Water Chemistry and Technology Pub Date : 2023-11-16 DOI: 10.3103/S1063455X23060127

Huishen Xu, Yukun Liang, Fang Zhu

{"title":"Efficient Removal of Nickel from Wastewater by Microwave-Assisted Synthesized Nickel Surface Ion Imprinted Polymer","authors":"Huishen Xu, Yukun Liang, Fang Zhu","doi":"10.3103/S1063455X23060127","DOIUrl":"10.3103/S1063455X23060127","url":null,"abstract":"Nickel ion imprinted polymer (Ni-IIP) was prepared using microwave-assisted surface imprinting technique with Ni2+ as the template, salicylaldehyde-ethylenediamine Schiff base as functional monomers, ethylene glycol dimethacrylate as a crosslinking agent and alkylated silica gel as a carrier. Fourier transform infrared spectroscopy (FTIR) was used to characterize Ni-IIP, which confirmed the successful synthesis of the polymer. Scanning electron microscopy (SEM) was used to compare the surface morphology of Ni-IIP to non-imprinted polymer (NIP). The SEM analysis found that Ni-IIP had many holes on its surface and abundant spherule structures after elution, while NIP only had a few irregular holes on its surface. The adsorption performance of IIP was studied under different conditions, including pH, temperature, and initial concentration of Ni. The experimental results showed that the maximum adsorption capacity of IIP for Ni was 24.23 mg g–1 at pH 8, temperature of 30°C, adsorption time of 40 min, and initial concentration of Ni of 30 mg L–1. The pseudo-second-order kinetic equation could better describe the whole adsorption process, suggesting that chemical adsorption mainly controlled the adsorption process of nickel ions. The Langmuir adsorption isotherm model showed a high linear relationship, and the theoretical adsorption capacity was closer to the actual adsorption capacity, indicating that the adsorption of nickel ions by IIP and NIP occurred in a single layer. Selective experiments showed that IIP had specific selectivity for nickel ions compared with Cu2+, Zn2+, and Cd2+. The results obtained from the analysis of regeneration and practical application demonstrate the promising potential of the prepared Ni-IIP for the efficient removal of nickel pollutants from water sources. These findings provide a new approach to the removal of Ni from wastewater.","PeriodicalId":680,"journal":{"name":"Journal of Water Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial Changes in the Composition of Aerosol Structures 气溶胶结构组成的空间变化

IF 0.6 4区化学

Journal of Water Chemistry and Technology Pub Date : 2023-11-16 DOI: 10.3103/S1063455X23060085

O. O. Samsoni-Todorov, I. A. Vygovska, V. O. Yaremenko

引用次数: 0