Review
Engineering, Environmental
Jayson Sime D. Jeremias, Jui-Yen Lin, Maria Lourdes P. Dalida, Ming-Chun Lu
Summary: This article reviews the recent advances in abatement technologies for copper containing industrial wastewater, including adsorption, electrochemical, and precipitation/crystallization processes. Adsorption is effective for treating dilute copper wastewater, and various adsorbents derived from biomass and clay have been developed, along with nano-sized and composite adsorbents. Electrochemical treatments such as electrodialysis, electrocoagulation, and capacitive deionization are in demand due to their versatility, minimal use of chemical reagents, and compact design. Precipitation and crystallization techniques, including the emerging fluidized bed homogeneous crystallization process, have improved the effective removal and recovery of copper as sparingly soluble salts for other purposes. A comparison of the abatement technologies for Cu(II) provides guidelines for process selection based on wastewater characteristics, and the limitations of the processes are summarized to suggest future research perspectives.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Rahib Hussain, Seema Anjum Khattak, Liaqat Ali, Shehla Sattar, Madeeha Zeb, Mian Luqman Hussain
Summary: The study investigated the impact of contamination in wastewater on groundwater and human health in the Swabi region of Pakistan. It found that industrial wastewater contained higher levels of pollutants than regulatory standards, and groundwater had concentrations of trace elements above acceptable levels, with health risks mainly associated with Cd, Fe, and Mg.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biotechnology & Applied Microbiology
Xueting Li, Mingyue He, Guangxi Sun, Chunmeng Ma, Yushan Li, Li Li, Bingsheng Li, Min Yang, Yu Zhang
Summary: The coking wastewater has high COD concentration and is highly toxic to zebrafish embryos. Biological treatment can remove over 80% of COD and most known toxic compounds, but unknown toxic compounds still exist in the effluent. Synchronized oxidation-adsorption technology further reduces COD and greatly reduces the toxicity of the effluent, improving the survival rate of zebrafish. This study reveals the effects of coking wastewater on zebrafish embryos at the genetic level.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Environmental Sciences
Mingyuan Liu, Jiapei Lv, Chenghua Qin, Heng Zhang, Linlin Wu, Wei Guo, Changsheng Guo, Jian Xu
Summary: This study established a simple and effective chemical fingerprinting method to examine the source-sink relationships between industrial wastewater and rivers. By screening chemicals and conducting chemical fingerprinting analysis, characteristic pollutants of different industrial enterprises were identified. The results showed that aromatic compounds were the most prevalent pollutant category in industrial wastewater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Jean Baptiste Baranyika, Justin Katabarwa, Daniel Kalisa Nyirimbibi, Serge Bakire, Hubert Hirwa
Summary: Physicochemical and bacteriological properties were analyzed to assess the contamination of effluents from the University Teaching Hospital of Butare. The results showed that the treated effluents exceeded the permissible limits of WHO standards for parameters such as EC, TDS, TSS, BOD, COD, and phosphates. The concentration of cadmium exceeded the limit, while manganese and zinc were within the allowed range. Proper treatment of the effluent is necessary before discharge into the environment.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Argyris Panagopoulos
Summary: This study examines the characteristics of various brine effluents from different industries and proposes methods to recover resources, prevent environmental pollution, and implement the concept of waste-to-resource. By utilizing a combination of technologies, brine can be treated and valorized in minimal and zero liquid discharge systems.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Jyun-Ting Lee, Shaurya Mathur, Sophia Shen, Jyh-Ming Wu, Jun Chen
Summary: This paper introduces an efficient strategy for wastewater treatment using MoSe2 nanoflowers, which can decompose dye molecules with strong oxidizing ability even when interacting with organic pollutants. Theoretical calculations and experimental results demonstrate that this method is efficient, eco-friendly, and reusable.
Article
Environmental Sciences
Israel Dufatanye, Youngjae Lee, Hyungsoo Kim, Sangyoup Lee
Summary: While Rwanda aims to achieve environmental pollution resilience and green growth, some industries are still discharging untreated effluent into the environment, with non-compliance to national and international standards. A study found a compliance level of 66.7% for key water quality monitoring parameters, and one industry was closed for deliberately discharging untreated effluent into a nearby river.
Article
Engineering, Electrical & Electronic
Lijun Zhou, Longlei Bai, Jingkang Zhang, Weidong Cao, Enxin Xiang
Summary: The study focused on the partial discharge characteristics and influencing factors of cavity defects in EPR cable terminations in high-altitude areas, revealing that at -40 degrees Celsius, the discharge was mainly caused by internal discharge in the gas-filled cavity, with discharge pulses appearing in both positive and negative half-cycles, along with surface discharge traces. These findings contribute to assessing the severity of termination faults at low temperatures.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Environmental Sciences
Sameerah I. Al-Saeedi, Mohamed Ashour, Ahmed E. Alprol
Summary: This study investigated the potential application of dried powder from red seaweed Pterocladia capillacea as an eco-friendly adsorbent for removing Crystal Violet Dye (CV dye) from a synthetic solution. The adsorption mechanisms of CV dye onto the P. capillacea biomass were examined using various analytical techniques. The results showed that P. capillacea exhibited 98% removal of CV dye from synthetic wastewater under optimum conditions, suggesting it is an attractive source for adsorbing CV dye from aqueous solution.
FRONTIERS IN MARINE SCIENCE
(2023)
Review
Agricultural Engineering
Walter Jose Martinez-Burgos, Eduardo Bittencourt Sydney, Adriane Bianchi Pedroni Medeiros, Antonio Irineudo Magalhaes, Julio Cesar de Carvalho, Susan Grace Karp, Luciana Porto de Souza Vandenberghe, Luiz Alberto Junior Letti, Vanete Thomaz Soccol, Gilberto Vinicius de Melo Pereira, Cristine Rodrigues, Adenise Lorenci Woiciechowski, Carlos Ricardo Soccol
Summary: The generation of agroindustrial byproducts is increasing rapidly worldwide, leading to significant amounts of wastewaters. It is crucial to reduce the environmental impact of these effluents through new integrated processes to produce energy or new products. This review provides characteristics of the wastes, their global average production, and potential environmental impacts, while addressing alternatives for reusing these materials.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Bin Yang, Haiyan Cui, Jie Gao, Jing Cao, Goran Klobucar, Mei Li
Summary: Bioassays were conducted to evaluate the toxic effects of pollutants in water, in addition to physico-chemical water quality evaluation. The study assessed the environmental health risks of industrial wastewater along the Yangtze River in China using a battery of bioassays. The results showed effective wastewater treatment processes in reducing various toxicities, and identified polycyclic aromatic hydrocarbons as potential major toxic chemicals of concern.
Article
Environmental Sciences
Patrice Turcotte, Shirley Anne Smyth, Francois Gagne, Christian Gagnon
Summary: This study investigated the fate of lanthanides in different wastewater treatment processes, and differentiated the origin of gadolinium (Gd) between medical application and geological background using a normalization approach. The results showed that the removal efficiency of lanthanides decreased with their atomic number, and the process using alum as a flocculating agent had the highest removal efficiency.
Article
Environmental Sciences
Hanaa Abdel Atty Zeid, Moustafa Mohsen El-Zayat, Abeer El-Said Abdrabouh
Summary: The study evaluated the effluents discharged from Mansoura Company for Resins and Chemicals Industry for drinking and irrigation purposes. Results showed high concentrations of heavy metals and physicochemical parameters in the effluents that exceeded permissible limits. Treatment with calcium-alginate alleviated heavy metals concentration but did not affect the physicochemical parameters. The effluents had adverse effects on the liver, thyroid, and overall health of young male rats, but treatment with calcium-alginate improved these changes.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Review
Biotechnology & Applied Microbiology
Liuwei Wang, Xuejiao An, Xiaoshuang Xiao, Ningjian Li, Dong Xie, Fenju Lai, Qinghua Zhang
Summary: Thiocyanate is a common pollutant in various industries, and its removal from industrial wastewater is an urgent problem. This paper reviews the properties, sources, toxicity, and treatment methods of thiocyanate, with a focus on biological systems that have shown success in removing thiocyanate. The metabolism of thiocyanate by different bacteria is discussed, and future research should aim to understand the degradation mechanisms at a molecular level and scale up the degradation technologies.
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2023)
Review
Computer Science, Artificial Intelligence
Muhammad Yasir, Wan Jianhua, Xu Mingming, Sheng Hui, Zeng Zhe, Liu Shanwei, Arife Tugsan Isiacik Colak, Md Sakaouth Hossain
Summary: This study presents a systematic literature review on ship detection by SAR images, highlighting the current research status, limitations, and challenges in the field. It emphasizes the need for further research on deep learning approaches and the development of an authentic process for ship detection using SAR data.
Article
Chemistry, Analytical
Yi Xu, Waqas Ahmad, Md Mehedi Hassan, Huanhuan Li, Qin Ouyang, Quansheng Chen
Summary: A novel g-C3N4 nanosheets-assisted upconversion fluorescent aptasensor was developed for Staphylococcus aureus detection using hybridization chain reaction (HCR). The presence of S. aureus activated the HCR system and resulted in a decrease in peroxidase-like activity of g-C3N4 nanosheets and fluorescence recovery proportional to the concentration of S. aureus. The method showed acceptable recoveries in real food samples and was validated by a traditional plate counting method.
ANALYTICA CHIMICA ACTA
(2023)
Letter
Peripheral Vascular Disease
Menhas Ahmad, Waqas Ahmad, Satesh Kumar
Article
Biophysics
Huanhuan Li, Wenhui Geng, Zhixiong Qi, Waqas Ahmad, Quansheng Chen
Summary: A stimuli-responsive SERS biosensor was developed for tetracycline detection using EDTA-driven polyethyleneimine grafted calcium carbonate microcapsules and chitosan-Fe magnetic microbeads. The biosensor showed high sensitivity and stability, with a linear relationship established and a LOD of 0.03 ng/mL. The biosensor's application in detecting tetracycline in food matrices was also validated and yielded consistent results with the standard ELISA method. This SERS biosensor offers promising prospects for tetracycline detection.
BIOSENSORS & BIOELECTRONICS
(2023)
Review
Chemistry, Multidisciplinary
Waqas Ahmad, Jiang Wu, Qiandong Zhuang, Arup Neogi, Zhiming Wang
Summary: This review presents the latest developments in fabricating broadband photodetectors based on conventional 2D transition metal dichalcogenides (TMDCs). It focuses on the recent progress in group-10 TMDCs in terms of lattice structure and synthesis techniques. The review also discusses the applications of group-10 TMDCs in nanoelectronics and optoelectronics, and provides perspectives for next-generation broadband photodetectors.
Article
Energy & Fuels
Shammas Mushtaq, Sofia Tahir, Arslan Ashfaq, Ruy Sebastian Bonilla, Muhammad Haneef, Rabia Saeed, Waqas Ahmad, Nasir Amin
Summary: This study reports a modeling-guided device optimization process to design highly efficient lead-free n-i-p methyl ammonium tin bromide (MASnBr3) perovskite solar cells. The influence of different parameters on the performance of MASnBr3 devices is thoroughly investigated using numerical simulations. An optimized device structure is proposed, showing the potential of MASnBr3 as a nontoxic perovskite for renewable energy.
Article
Remote Sensing
Weimin Kong, Shanwei Liu, Mingming Xu, Muhammad Yasir, Dawei Wang, Wantao Liu
Summary: Ship detection in SAR images is important in both military and civil applications. This study proposes a lightweight ship detection network based on the YOLOx-Tiny model to address the challenges of complex backgrounds, varying ship sizes, and real-time detection. The proposed methods include a multi-scale ship feature extraction module that effectively improves the detection accuracy and a SAR remote sensing image detection strategy based on adaptive threshold to suppress false alarms and improve detection speed. Experimental results demonstrate the effectiveness and superiority of the proposed method, providing theoretical and technical support for ship detection in resource-limited platforms and showing promising application prospects.
INTERNATIONAL JOURNAL OF REMOTE SENSING
(2023)
Article
Chemistry, Applied
W. Ahmad, E. H. Aljuhani, H. Alwael, E. A. Assirey, H. M. Nassef, M. S. El-Shahawi
Summary: The electrochemical behavior and adsorption properties of food colorant erythrosine b (E127) were investigated and a sensitive analysis method was developed. The energy levels, absorption, and redox potentials of E127 were determined using computational methods. Experimental results validated the proposed redox mechanism and allowed for the detection of E127 in various samples.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Review
Nanoscience & Nanotechnology
Farzana Jamal, Aqsa Rafique, Sawaira Moeen, Junaid Haider, Walid Nabgan, Ali Haider, Muhammad Imran, Ghazanfar Nazir, Mansur Alhassan, Muhammad Ikram, Qasim Khan, Ghafar Ali, Maaz Khan, Waqas Ahmad, Muhammad Maqbool
Summary: The rapid development of population, industry, and urbanization has led to significant issues such as energy consumption and water contamination. Advanced materials are needed to address these problems and develop energy storage devices. Metal sulfides (MSs) nanomaterials have shown potential for applications in medicine, biology, environmental sciences, and energy production/utilization. This review summarizes the current achievements in MSs research and their production methods to achieve controlled morphologies, sizes, and compositions.
ACS APPLIED NANO MATERIALS
(2023)
Article
Food Science & Technology
Farah Javed, Hafiz Muhammad Shahbaz, Waqas Ahmed, Habib Ur Rehman
Summary: High-pressure processing (HPP) was used to post-process vegetable puree, and various analyses were conducted to investigate its microbiological, physicochemical, nutritional, and sensory characteristics. Compared with thermal treatment and fresh samples, HPP-treated puree exhibited lower microbial counts and similar or better performance in other parameters such as phenolic contents and antioxidants. The sensory evaluation score was also higher for HPP-treated puree, demonstrating its potential as an alternative processing technology to enhance nutritional quality and microbial safety.
CZECH JOURNAL OF FOOD SCIENCES
(2023)
Article
Engineering, Multidisciplinary
Waqas Ahmad, Muhammad Munsif, Habib Ullah, Mohib Ullah, Alhanouf Abdulrahman Alsuwailem, Abdul Khader Jilani Saudagar, Khan Muhammad, Muhammad Sajjad
Summary: The recognition of different activities in sports, especially cricket, has gained attention in recent years. Existing methods in this area often rely on hand-crafted features due to limited availability of public data. In this study, a cricket activities dataset and a deep learning model combining CNN layers and LSTM cells were proposed. The results show that the proposed model outperforms other recurrent neural networks and achieves high accuracy, recall, and F1 score. The code and dataset are publicly available for further research.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Jiaxin Wan, Zhiliang Qin, Xiaodong Cui, Muhammad Yasir, Benjun Ma
Summary: Seafloor habitat mapping is important in marine environment monitoring and marine geological research. This article developed a method for detecting coastal seafloor habitats through the fusion of multiscale optics and acoustics data. The results demonstrated that integrating multisource data improved the accuracies by 3.31% and 17.28% compared to using multispectral or bathymetric data alone.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2023)
Article
Engineering, Environmental
Waqas Ahmad, Sajid Ullah, Imtiaz Ahmad, Taj Muhammad, Yu Shuang Ren, Muhammad Ilyas
Summary: This article describes the synthesis of graphene oxide (GO) from fish scales and its application for removing organic contaminants from refinery wastewater. Characterization using XRD, FTIR, SEM, and EDX analysis showed that the synthesized GO had a consistent structure. The GO exhibited a rough, porous, and layered morphology similar to two-dimensional sheets of GO. The adsorption process of the adsorbent followed a pseudo-2nd order kinetic model and maintained high efficiency over multiple cycles.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Article
Computer Science, Information Systems
Waqas Ahmad, Hikmat Ullah Khan, Tassawar Iqbal, Saqib Iqbal
Summary: Sentiment analysis is a popular research field in the current era due to its wide range of applications. This study proposes an Attention-based Multi-Channel Gated Recurrent Neural Network (Att-MC-GRU) for aspect extraction and sentiment classification. The method combines word embedding, part of speech tags, and contextual position information, and achieves higher accuracy compared to existing techniques.
Article
Pharmacology & Pharmacy
Feras Falih, Habibah A. Wahab, Waqas Ahmad
Summary: The aim of this study was to investigate the effects of formulation parameters on the physicochemical characteristics of quercetin-loaded polymeric nanoparticles. The results showed that the amount of polymer had the greatest impact on the particle characteristics, while the pluronic F-68 concentration had the greatest impact on PDI and zeta potential.
JOURNAL OF POPULATION THERAPEUTICS AND CLINICAL PHARMACOLOGY
(2023)