Review
Biochemistry & Molecular Biology
Mohaddeseh Sajjadi, Fatemeh Ahmadpoor, Mahmoud Nasrollahzadeh, Hossein Ghafuri
Summary: The supply of affordable and clean drinking water is a crucial global environmental issue, and research is being done on utilizing biomass-derived biosorbents like lignin to remove contaminants effectively. Future efforts should focus on improving the economic viability of low-cost, green lignin-derived materials for broader applications in water treatment. Production of functionalized lignin and lignin-supported nanomaterials is a promising approach in nanotechnology for wastewater treatment.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Engineering, Environmental
Muhammad Saqlain Iqbal, Awais Ali Aslam, Ramsha Iftikhar, Muhammad Junaid, Syed Muhammad Imran, Muhammad Shahid Nazir, Zulfiqar Ali, Muhammad Zafar, Ayesha Kanwal, Norinsan Kamil Othman, Ujjwal Pal, Ai Ling Pang, Mohsen Ahmadipour
Summary: The contamination of water sources with toxic pollutants is a significant environmental challenge. Adsorption technology using graphene-based composite materials has shown potential in removing heavy metals and organic pollutants from wastewater. This review article provides a comprehensive overview of the literature on graphene-based adsorbents for water treatment and discusses research challenges and future studies.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Environmental Sciences
S. Senguttuvan, P. Senthilkumar, V Janaki, S. Kamala-Kannan
Summary: Polyaniline-based composites are effective in removing and detoxifying dyes and heavy metals from wastewater, by adsorbing and converting them into less toxic states. Further research is needed to understand the impact of various conditions and experimental variables on the removal of dyes and heavy metals.
Article
Environmental Sciences
Emmanuel Christopher Umejuru, Tebogo Mashifana, Vepika Kandjou, Majid Amani-Beni, Hasan Sadeghifar, Mahsa Fayazi, Hassan Karimi-Maleh, Nastassia Thandiwe Sithole
Summary: The presence of heavy metal ions and emerging pollutants in water poses a great risk to various biological ecosystems due to their high toxicity. Researchers worldwide are interested in developing efficient and environmentally friendly methods to decontaminate these waters. Adsorption and photocatalysis have been widely used for water treatment, but the discussion and analysis of zeolite-based composites as adsorbents are limited. Zeolites, as porous aluminosilicates, are excellent candidates for wastewater treatment due to their various pollutant removal mechanisms. This review provides an overview of the current developments in fabricating and applying zeolite-based nanocomposites as adsorbents and photocatalysts for extracting heavy metals, dyes, and emerging pollutants from wastewaters. The review also examines the effect of weight ratio on photocatalyst, photodegradation pathways, and various factors influencing photocatalysis and adsorption.
ENVIRONMENTAL RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Nehapadma Mohanty, Braja N. Patra
Summary: In this study, the polypyrrole-sodium alginate (Ppy-SA) nanocomposite was successfully fabricated and characterized for adsorption of organic dyes and heavy metals from wastewater. The results showed that the Ppy-SA nanocomposite exhibited high adsorption capacities for methylene blue, methyl orange, chromium (VI), and mercury (II), surpassing other reported polymer-based adsorbents.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Afnan S. Batubara, Hamad M. Adress Hasan, Mohammed A. Abel Moniem, Mamdouh S. Masoud, Alaa-Eldin R. Mostafa, Mohammed Gamal, Mohamed A. Elsayed
Summary: This study successfully purified contaminated water containing dyes and heavy metals using a low-cost adsorbent made from waste materials. The optimum conditions for adsorption were pH values of 6 to 7, and the adsorption capacity of activated carbon increased with increasing contact time. By utilizing inexpensive waste materials as adsorbents and applying them in water purification, the feasibility of using treated natural wastes has been confirmed.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Polymer Science
Shan E. Zehra Syeda, Dominika Nowacka, Muhammad Shahzeb Khan, Anna Maria Skwierawska
Summary: This review provides an overview of recent contributions in the synthesis of Cyclodextrin-based adsorbents for wastewater treatment, particularly for the removal of heavy metals, dyes, and organic pollutants. New adsorption trends and trials related to CD-based materials are also discussed, as well as future research directions and challenges associated with CD-based adsorbents.
Article
Chemistry, Physical
Alenka Ojstrsek, Primoz Vouk, Darinka Fakin
Summary: The efficiency of zeolite 4A and activated carbon (AC) in removing color, COD, TOC, and metals from wool dyeing wastewaters was evaluated in this study. The results showed that zeolite was effective in removing metallic ions, while AC was more efficient in reducing organic pollution. All three adsorbents significantly reduced the color of the wastewaters.
Article
Biochemistry & Molecular Biology
Yongxue Li, Xinyi Dong, Longshan Zhao
Summary: A new type of magnetic chitosan nanocomposites modified with graphene oxide and polyethyleneimine (MCS/ GO-PEI) was synthesized and used as an effective adsorbent for removing toxic heavy metals and anionic azo dyes in environmental water. The adsorption experiments showed that the material had strong adsorption performance for the four analytes, with the adsorption process following pseudo-second-order kinetic and Langmuir isotherm model. pH was investigated and optimized as an important parameter in the adsorption process. The prepared MCS/ GO-PEI nanocomposite demonstrated promising reusability as an adsorbent for arsenic, mercury, congo red, and amaranth in environmental water samples.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Environmental Sciences
V. Mohanapriya, R. Sakthivel, Nguyen Dang Khoa Pham, Chin Kui Cheng, Huu Son Le, Thi Minh Hao Dong
Summary: Environmental effects of heavy metal pollution are a global problem that threatens human health and environmental sustainability. The removal of such pollutants from wastewater through adsorption treatment using functionalized and surface-modified nanomaterials has attracted significant research attention for its effectiveness and cost-efficiency. This review highlights the application of these nanomaterials for heavy metal removal, discusses the importance of nanomaterial regeneration for economic and environmental considerations, and emphasizes the need for future research on large-scale implementation in industries.
Article
Chemistry, Inorganic & Nuclear
Md. Ahmaruzzaman
Summary: MXenes, as a rapidly developing 2D material, show great potential in removing various pollutants. This review discusses the recent advancements in MXene adsorption for environmental remediation and the efficiency improvement through surface modification.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Review
Engineering, Environmental
Marouane El Alouani, Hamid Saufi, Ghizlane Moutaoukil, Saliha Alehyen, Behzad Nematollahi, Walid Belmaghraoui, M'hamed Taibi
Summary: This study provides a comprehensive review on the application of geopolymer materials for treating waters and wastewaters contaminated with organic and inorganic pollutants, highlighting their potential as efficient, environmentally-friendly, and cost-effective adsorbents. The research focuses on recent studies conducted from 2010 to 2020, exploring the formulation, characterization, and adsorption capabilities of geopolymers for eliminating hazardous pollutants from aqueous environments.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Mingchen Xia, Han Zhou, Charles Amanze, Lan Hu, Li Shen, Runlan Yu, Yuandong Liu, Miao Chen, Jiaokun Li, Xueling Wu, Guanzhou Qiu, Weimin Zeng
Summary: The bacterial strain Bacillus subtilis ZHX3 was identified as a high bioflocculant producer, capable of producing the bioflocculant MBF-ZHX3 with excellent flocculation performance. The bioflocculant was composed mainly of polysaccharides and proteins, with potential applications in wastewater treatment as a more effective and environmentally friendly alternative to polyacrylamide.
Review
Chemistry, Multidisciplinary
Akash Balakrishnan, Sowmya Appunni, Mahendra Chinthala, Meenu Mariam Jacob, Dai-Viet N. Vo, Soreddy Sainath Reddy, Emmanuel Sebastian Kunnel
Summary: Water contamination is a growing global issue, and current methods for water and wastewater treatment are limited, especially in terms of difficult regeneration of fossil-fuel derived nano-adsorbents. Advanced methods using sustainable materials like chitosan are needed. Chitosan, a biopolymer extracted from shellfish, is non-toxic, abundant, and chemically stable. It can be shaped into various forms for wastewater treatment. In this review, we focus on chitosan-based beads and their applications in wastewater treatment, including adsorption mechanisms, pollutant removal, functionalization, and regeneration. Notably, chitosan/Fe-hydroxyapatite beads have high adsorption capacity for lead removal, while imprinted magnetic chitosan beads show good reusability for nickel removal.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Ioannis Anastopoulos, Muthanna J. Ahmed, Esam H. Hummadi
Summary: This article provides a comprehensive review on the application of Eucalyptus-based adsorbents for the removal of heavy metal and dye pollutants from waste (water). It discusses the preparation of adsorbents using different parts of Eucalyptus and their efficient removal of various toxic and carcinogenic pollutants. The article also considers the regeneration and adsorption performance of the adsorbents, as well as the mechanisms involved, and presents future prospects for the use of Eucalyptus-based adsorbents in water treatment.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Environmental Sciences
Elizabeth Alvarez-Chavez, Stephane Godbout, Mylene Genereux, Caroline Cote, Alain N. Rousseau, Sebastien Fournel
Summary: This study evaluated the effect of alternative filtering materials and bed aeration on the retention of nutrients and fecal bacteria in woodchip bedded stand-off pads for cows. The results showed that the alternative biofilters were more efficient in removing COD, SS, TN, and NO3-N, while conventional biofilters were more efficient for PO4-P removal. Aeration did not have a significant effect under the tested temperature conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yike Zhang, Zengyi Ma, Zhuoting Fang, Yuandong Qian, Zhiping Huang, Yilong Ye, Jianhua Yan
Summary: This study investigates the application of oxygen enrichment melting technology in the melting of municipal solid waste incineration fly ash. The results demonstrate that oxygen enrichment technology can reduce energy consumption and operating costs, as well as decrease pollution emissions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Liangang Xiao, Mingkai Leng, Philip Greenwood, Rongqin Zhao, Zhixiang Xie, Zengtao You, Junguo Liu
Summary: This study investigates the effects of grazing exclusion on soil organic carbon (SOC) accumulation and vegetation recovery. It finds that grazing exclusion can increase the potential for SOC accumulation, and higher annual precipitation is positively correlated with SOC accumulation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Beatrice Cantoni, Jessica Ianes, Beatrice Bertolo, Selena Ziccardi, Francesco Maffini, Manuela Antonelli
Summary: This study evaluates the performance of ozonation and adsorption as in-series processes compared to standalone processes for the removal of Contaminants of Emerging Concern (CECs) in drinking water. The combination of both processes proves to be more effective than adsorption and ozonation alone. Ozonation improves the adsorption performance of poorly-oxidizable CECs but worsens that of well-oxidizable compounds. This research highlights the importance of considering both processes in the removal of CECs in drinking water treatment plants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Dan Li, Bingjun Liu, Yang Lu, Jianyu Fu
Summary: A new Standardized compound Drought and Saltwater intrusion Index (SDSI) was developed to detect changes in the severity of CDSEs in six estuaries. The study found that saltwater intrusion plays a dominant role in influencing SDSI severity, and CDSEs vary in frequency, duration and severity among different estuaries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yong-Qiang Li, Rui Sun, Chong-Miao Zhang, Zi-Xuan Liu, Rui-tao Chen, Jian Zhao, Hua-dong Gu, Huan-Cai Yin
Summary: In this study, an electron beam excitation multi-wavelength ultraviolet (EBE-MW-UV) system was established and found to have significantly higher microbial inactivation effects compared to single-wavelength UV-LEDs in water. Mechanism analysis revealed that EBE-MW-UV damaged microbial DNA and proteins, and generated additional reactive oxygen species, leading to microbial inactivation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Kaili Ma, Xinxin Han, Qiujuan Li, Yu Kong, Qiaoli Liu, Xu Yan, Yahong Luo, Xiaopin Li, Huiyang Wen, Zhiguo Cao
Summary: This study reveals that the use of a tryptophan-degrading microbial consortium (TDC) can enhance the hydrolysis efficiency of waste activated sludge (WAS), increasing the yield and quality of short chain fatty acids (SCFAs) and improving the solubilization and release of organic substances from WAS.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Ling Xiong, Rui Li
Summary: Incorporating Ecosystem Service Value (ESV) into land use planning can provide informed land management decisions. This study evaluates the ESV of Guizhou Province in China's karst region. The results show an increase in total ESV over the past two decades due to ecological restoration projects.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
M. Geetha Jenifel
Summary: This article discusses the importance of water and the pollution of freshwater resources, and introduces the use of machine learning models and blockchain technology to predict and protect water quality.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Stanslaus Terengia Materu, Taotao Chen, Chang Liu, Daocai Chi, Meng Jun
Summary: The study showed that H2SO4-modified biochar can reduce P leaching, increase soil available P, and enhance plant P uptake in alternate wetting and drying irrigation systems. Biochar additions B20A and IAWDB20A-M were effective in improving yield, reducing P leaching, and increasing APB.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Amir Nouri, Ali Akbar Zinatizadeh, Sirus Zinadini, Mark Van Loosdrecht
Summary: This study focuses on the development of an air-lift bio-electrochemical reactor (ALBER) with a continuous feeding regime to enhance nitrogen removal from synthetic wastewater. The effect of temperature, hydraulic retention time (HRT), N -NH+4 /TN ratio, and current density on the reactor performance was investigated, and the ALBER achieved a maximum TN removal of 73%. The results suggest that the ALBER has potential for treating industrial wastewater at low temperatures.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Peifang Wang, Guoxiang You, Yang Gao, Juan Chen, Xun Wang, Chao Wang
Summary: This study investigated the ecological processes of microbial communities and N- and P-transformation processes in multistage agricultural drainage ditches. The results showed that the microbial communities were co-shaped by agricultural practices and ditch size, which further governed the N and P removal performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Xiaofeng Niu, Huan Wang, Tao Wang, Peiyu Zhang, Huan Zhang, Hongxia Wang, Xianghong Kong, Songguang Xie, Jun Xu
Summary: Microorganisms play a critical role in maintaining ecosystem balance, and environmental stressors can affect the assembly processes of microbial communities. The study found that different stressors have opposite effects on microbial community assembly in water and sediment, and warming has different influences compared to herbicides and nutrients.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yuqing Tan, Qiming Cheng, Fengwei Lyu, Fei Liu, Linhao Liu, Yihong Su, Shaochun Yuan, Wenyu Xiao, Zhen Liu, Yao Chen
Summary: The exacerbation of global warming, extreme weather events, and rapid urbanization have led to increased flooding in urban areas. China has adopted sponge city as an efficient means of preventing and controlling urban floods. Using a SWMM-FVCOM model, the hydrological reduction and control effect of sponge city construction (SPCC) within a university campus were evaluated. The study found that implementing SPCC effectively mitigates surface runoff and reduces the severity of urban flooding. However, the efficacy of runoff control decreases with longer rainfall return periods.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Zhonghan Chen, Qiuyan Li, Shibo Yan, Juan Xu, Qiaoyun Lin, Zhuangming Zhao, Ziying He
Summary: Tidal rivers are important biochemical reaction channels, receiving carbon from wastewater and agricultural drains, affecting CO2 emissions. Through modeling and data analysis, researchers explored carbon distribution, emissions, and greenhouse effects, emphasizing the potential of river management to change global CO2 emissions under climate change.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)