Journal of hazardous materials advances最新文献

{"title":"Salinity acclimation of nitrifying microorganisms: Nitrification performance, microbial community, osmotic adaptation strategies","authors":"","doi":"10.1016/j.hazadv.2024.100448","DOIUrl":"10.1016/j.hazadv.2024.100448","url":null,"abstract":"<div><p>Wastewater with high salinity (&gt; 1%) presents a significant challenge to conventional wastewater treatment, particularly for the nitrification process. However, the osmotic adaptation strategies of nitrifying microorganisms remain poorly understood. In this study, we examined the impacts of salinity on the ammonia and nitrite oxidation processes in wastewater. The biofilm samples without salinity acclimation (0 g NaCl/L), after 1% salinity acclimation (10 g NaCl/L), and after 3% salinity acclimation (30 g NaCl/L) were inoculated to conical flasks containing synthetic high-salt wastewater (30 g NaCl/L), respectively. The research findings indicate that, following the salinity acclimation of biofilm, the activity of ammonia oxidation surpassed that of nitrite oxidation. 16S rRNA gene amplicon analysis revealed a noteworthy increase in the abundance of <em>Nitrosomonas</em> (ammonia-oxidizing bacteria) and an unclassified ammonia-oxidizing archaeon within the <em>Nitrososphaeraceae</em> family. In contrast, <em>Nitrospira</em> (nitrite-oxidizing bacteria) exhibited a significant decrease (<em>p &lt; 0.01</em>). Metagenomic analysis indicates certain strains, such as <em>Nitrosomonas</em> sp. PL2, <em>Nitrosomonas mobilis</em> PL3, and <em>Nitrososphaeraceae</em> gen. sp. PL5, possessed various genes related to Na⁺ efflux, K⁺ uptake, glutamate synthesis or transport. However, <em>Nitrospira</em> sp. PL6 and <em>Nitrospira</em> sp. PL7 lacked K⁺ uptake genes. This study elucidates the microbial mechanisms underlying the variations in nitrification observed before and after salinity acclimation of biofilm, which helps to develop microbial evolution strategies to remove nitrogen pollutants under high salinity conditions.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000494/pdfft?md5=e62150d59a307d89ecf7f9d0ecd88c4e&pid=1-s2.0-S2772416624000494-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141960828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wearable Kapton graphene biosensor for detection of toxic gases","authors":"","doi":"10.1016/j.hazadv.2024.100452","DOIUrl":"10.1016/j.hazadv.2024.100452","url":null,"abstract":"<div><p>Toxic gases cause a significant number of human deaths every year across the globe. Different types of harmful substances can affect individuals in various ways. Inhaling these gases can have harmful consequences for the body, leading to physiological changes or even death. As a preliminary measure, a simulation application is utilized to detect certain gases by utilizing small-scale and flexible architectures, along with advanced detection techniques. The active material used in this study is a patch of emitting graphene embedded on a polyimide film (Kapton), which helps to determine the frequency of the RF Planar Resonant Structure. We plan to utilize the graphene-Kapton sensor for conducting non-invasive testing. The device has been tested for detecting and recognizing various dangerous and toxic gases, including Fluorine azide (F2N), Hydrogen Iodide (HI), Nitrogen (N2), Methane (CH4), and Carbon monoxide (CO). The simulation results suggest that the Graphene-Kapton flexible sensor provides excellent detection performance. The sensor can accurately identify each gas based on its distinct characteristics. Furthermore, ample sensitivity analysis against geometrical parameters and external electrical stimulation is performed to show the robustness and reliability of the proposed structure.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000536/pdfft?md5=91a87fb2c7a16feabfe963207126110b&pid=1-s2.0-S2772416624000536-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141998465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toxicological effect of deltamethrin on enzymatical, apoptosis and immune response, histological morphology in Litopenaeus vannamei","authors":"","doi":"10.1016/j.hazadv.2024.100456","DOIUrl":"10.1016/j.hazadv.2024.100456","url":null,"abstract":"<div><p>Deltamethrin (DM) use in agricultural production and storage can result in the presence of residues in several feed ingredients, which can then be ingested by aquatic animals, potentially leading to adverse health effects. Although the potential toxicity of the lipophilic deltamethrin has been evaluated in several studies, there is a paucity of comprehensive studies on the negative effects induced by chronic exposure of shrimp to deltamethrin at different dietary lipid levels. A feeding experiment of six weeks was carried out to assess whether alterations in dietary lipid levels have an impact on the toxicity of DM. In a feeding experiment on <em>Litopenaeus vannamei</em>, the effects of dietary fat levels on the toxicity of DM were studied. There were six distinct diets created comprising three levels of DM (0.2 mg⋅kg^–1, 1 mg⋅kg^–1, 5 mg⋅kg^–1), and two lipid levels (6.96 %, 10.88 %). The diets were designated as LF0.2, LF1, LF5, HF0.2, HF1, HF5. The growth performance and whole shrimp body lipid were reduced with the increase of DM addition to the diet, and DM caused abnormal changes in lipoproteins (LDL, HDL, LPS) in shrimp when feeding diets containing high doses of DM. Furthermore, GOT, GPT, AKP, and ACP activities were found to be significantly increased by long-term exposure to DM. Meanwhile, the way that genes linked to the nuclear factor kappa-B immune signaling pathway showed a significant increase in the hepatopancreas (<em>dorsal, imd, pelle, ikkβ</em>), intestine (<em>imd, tube, pelle</em>), and muscle (<em>toll, imd, pelle</em>) of shrimp following exposure to DM. Similarly, cellular autophagy genes in the hepatopancreas (<em>atg9, atg12</em>), muscle (<em>atg3, atg9</em>), and intestine (<em>atg3, atg5, atg9, beclin, atg13</em>) were significantly upregulated in a dose-dependent manner after shrimp chronic exposure to DM. Histopathological damage was also induced in the muscles under DM exposure. In summary, chronic exposure to DM resulted in a slowing of growth performance, disruption of lipoprotein metabolism, impairment of hepatopancreatic, intestinal, and muscle-related immune functions, as well as the promotion of autophagy and damage to shrimp muscle.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000573/pdfft?md5=596322a47aa8d3de166df8a0aa98fd48&pid=1-s2.0-S2772416624000573-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142098964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of polycyclic aromatic hydrocarbon (PAH) levels and health risks in kitchen dust from wood, kerosene, and gas cooking systems in Cumilla, Bangladesh","authors":"","doi":"10.1016/j.hazadv.2024.100457","DOIUrl":"10.1016/j.hazadv.2024.100457","url":null,"abstract":"<div><p>This study investigates the presence of polycyclic aromatic hydrocarbons (PAHs) in kitchen dust from households in the Cumilla District of Bangladesh, utilizing three different cooking systems: wood, kerosene, and gas. Sixty dust samples were collected from various kitchen surfaces and analyzed for 18 PAH compounds. The extraction and analysis of PAHs were performed using gas chromatography-mass spectrometry (GC-MS) with selective ion monitoring (SIM) mode. The results indicated significant variations in PAH concentrations across different cooking systems, with the highest levels observed in kitchens using wood stoves, followed by kerosene and gas stoves. Diagnostic ratios were used to identify the sources of PAHs, revealing a combination of pyrogenic and petrogenic origins. Health risk assessments, including Incremental Lifetime Cancer Risk (ILCR) and Hazard Index (HI), were conducted to evaluate the potential risks associated with PAH exposure. The findings demonstrated a higher carcinogenic risk associated with wood stove systems, while kerosene and gas systems posed comparatively lower risks. The study's findings have practical implications for public health and policy development, as they underscore the need for continuous monitoring of indoor PAH levels and the development of policies to mitigate exposure, highlighting the critical importance of addressing indoor pollution to ensure public health safety.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000585/pdfft?md5=6f39458777b60b4b631601c15cf0acc8&pid=1-s2.0-S2772416624000585-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142098963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dermatitis, a nightmare for those exposed to environmental pollutants","authors":"","doi":"10.1016/j.hazadv.2024.100454","DOIUrl":"10.1016/j.hazadv.2024.100454","url":null,"abstract":"<div><p>The increase in occupational, environmental, and prenatal exposure of humans to environmental pollutants in recent years has been associated with an increase in the incidence or aggravation of dermatitis symptoms in different age groups. The present systematic review was conducted with the aim of obtaining studies related to the impact of occupational, environmental, and prenatal exposure to volatile organic compounds (VOCs), solvents, and metals on dermatitis. To identify relevant studies, a systematic search was conducted in Scopus, PubMed, Web of Science, Medline, and Embase databases until January 11, 2024 (without date limit). The Population, Exposure, Comparator, and Outcomes (PECO) statement was formed to create a comprehensive and efficient research question and studies that did not meet the PECO criteria were excluded. In addition, the quality of the articles was assessed using the Joanna Briggs Institute (JBI) specific checklist and the possibility of risk of bias using the ROB tool. Finally, the eligible studies were discussed according to the type of pollutant. After detailed reviews, 86 eligible studies were considered for inclusion in the present systematic review. A review of studies showed that 66 % (<em>N</em> = 57) of the eligible articles were of high quality (Q1) and 58.13 % (<em>N</em> = 50) were classified as high ROB. The results indicated that chronic exposure to VOCs, solvents, and metals can play an effective role in incidence and aggravation of dermatitis symptoms, especially atopic dermatitis and eczema, in all age groups. However, exposure to some micronutrients, such as selenium and manganese, can positively improve community health. The results of this systematic review show the adverse effects of environmental pollutants on dermatitis, which can negatively affect people's self-esteem and occupational/educational performance. Therefore, it is very necessary to adopt strict approaches to comply with environmental standards and prevent chronic exposure to contaminants, especially in pregnant women and employees.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S277241662400055X/pdfft?md5=e4e10c0a8e4f0d018e101088d11c8c24&pid=1-s2.0-S277241662400055X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142098965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Utilization of local corn (Zea Mays) wastes for bioethanol production by separate hydrolysis and fermentation","authors":"","doi":"10.1016/j.hazadv.2024.100447","DOIUrl":"10.1016/j.hazadv.2024.100447","url":null,"abstract":"<div><p>Maize is the second most-common crop globally. Thus, enormous maize cobs are generated annually from maize processing activities which could serve as a potential and non-edible source for biofuel production. The primary aim of this research was to assess the practicality of producing bioethanol from discarded maize cob through a distinct two-step process referred to as separate hydrolysis and co-fermentation. After a 72-hour fermentation period, the greatest ethanol yield of 66.23 ± 8.35 mL/kg was obtained. This was followed by 54.33 ± 7.27 35 mL/kg after 48 h, and 21.68 ± 2.97 35 mL/kg after 24 h. Importantly, all ethanol yields at different time points exhibited statistical significance at <em>p</em> &lt; 0.05. Moreover, the study revealed a robust positive correlation (<em>r</em> = 0.99, <em>p</em> &lt; 0.01) between glucose and Total reducing Sugars (TRS) yields, and negative correlations were observed between ethanol yield and glucose (<em>r</em> = -0.97, <em>p</em> &lt; 0.05) as well as ethanol and TRS (<em>r</em> = -0.98, <em>p</em> &lt; 0.05). The results indicate the potential of maize cob waste as a valuable resource for bioethanol production. Significant enhancements in operational processes are necessary to enhance the economic feasibility of producing ethanol from maize cobs. Nigeria's utilization of waste for biofuel production is bolstered by substantial policy and financial backing for renewable fuels. The economic viability of ethanol production from maize cobs relies heavily on its competitiveness relative to other waste treatment methods and the effectiveness of policy measures.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000482/pdfft?md5=bd3db69217a4d3869953a723009c00b9&pid=1-s2.0-S2772416624000482-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141847128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and characterization of alkali-activated binders with slag and waste printed circuit board","authors":"","doi":"10.1016/j.hazadv.2024.100455","DOIUrl":"10.1016/j.hazadv.2024.100455","url":null,"abstract":"<div><p>The global production of printed circuit board (PCB) is expected to rise substantially in the next decade due to the advancement in technology. The production of PCB results in generation of hazardous waste of various kinds, and one such waste is the very fine particles of the board material that is generated due to drilling and other preparatory operations. The disposal of such waste in the environment can result in serious consequences which needs attention. Therefore, recycling of waste printed circuit board (WPCB) can mitigate its harmful effects on the environment and also reduce the remediation costs. In this study, the WPCB is used as a substitute to ground granulated blast furnace slag (GGBFS) in development of alkali-activated binder. Alkali-activated binder was synthesized with GGBFS, WPCB, sodium hydroxide sol. (NaOH), and sodium silicate sol. (Na₂SiO₃). GGBFS was replaced with WPCB at replacement rates of 0%, 10%, 20%, and 30% by volume. Additionally, the effect of varying concentration of NaOH and Na₂SiO₃ on the physical and mechanical performance of the binder was studied. The developed binders were evaluated for workability, strength, water absorption, and efflorescence properties. Further, to ascertain its safety on the environment, the toxicity characteristic leaching procedure (TCLP) test was also performed. The results indicate that WPCB characteristics are compatible with GGBFS in terms of its particle size distribution. Moreover, the replacement of GGBFS with up to 20% WPCB provides desirable properties for the alkali-activated binder. However, higher replacements are not recommended, since it had detrimental effect on the mechanical performance of the binder. The study revealed that desirable performance can be achieved for binders with 8 M NaOH and with Na₂SiO₃ to NaOH ratio of 2, and up to 20% GGBFS replaced with WPCB. The results of TCLP test disclose that the contaminant in the leachate from alkali-activated binders with WPCB are within regulatory limits, and do not pose any threat to the environment. Finally, the outcome of this study provides an innovative approach towards formulation of eco-friendly binder for various construction applications such as foundations, buildings, bridges, pavements, etc.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000561/pdfft?md5=52bbfb2c206bdd844660aa776ca28e88&pid=1-s2.0-S2772416624000561-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142089388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of MoS42−intercalated magnetic layered double hydroxide for preconcentration of cadmium and lead from water samples","authors":"","doi":"10.1016/j.hazadv.2024.100446","DOIUrl":"10.1016/j.hazadv.2024.100446","url":null,"abstract":"<div><p>A MoS₄²⁻-intercalated magnetic FeMgAl layered double hydroxide (Fe₃O₄@MoS₄²⁻-FeMgAl LDH) nanocomposite was synthesised via hydrothermal assisted exfoliation. The material was applied as the adsorbent for extraction, preconcentration and removal of cadmium ions (Cd²⁺) and lead ions Pb²⁺ from wastewater and river water. The structural properties and morphologies of the adsorbent were determined by transmission electron microscopy (TEM), scanning electron microscopy coupled with energy dispersive spectroscopy (SEM/EDS), Fourier transform infrared spectroscopy (FTIR), zeta potential and X-ray diffraction (XRD). The parameters influencing preconcentration and the adsorptive removal process were optimised using the central composite design (CCD) method. The concentration of Cd²⁺ and Pb²⁺ in the samples was determined using inductively coupled plasma optical emission spectrometry (ICP-OES). The preconcentration method developed in the study was ultrasound-assisted magnetic solid phase extraction (UA-MSPE). Under optimum conditions, linearity was 0.1-800 µg/L with a correlation of determination (R²) of 0.9987. The uncertainty of the slope and the uncertainty of the intercept were both lower than the uncertainty of the calibration indicating good precision, selection of standards closest to a blank and wide range. Precision expressed as %RSD for both intra-day (n = 27) and inter-day (n = 9) were found to be 3.3 % and 7.0 % respectively. The limit of detection (n = 10) and limit of quantification (n = 10) of the UA-MSPE/ICP-OES were 0.03 µg/L and 0.10 µg/L. The developed method was applied for real sample analysis. Herein, influent wastewater was reported as 1.77 ± 0.14 and 6.53 ± 0.33 ug/L for Cd²⁺ and Pb²⁺, respectively while the effluent was reported at 0.96 ± 0.07 and 2.57 ± 0.13 ug/L, respectively. River water samples were found to be 0.45 ± 0.01 and 1.23 ± 0.04 ug/L, respectively proving that the adsorbent is capable of preconcentrating the target analytes.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000470/pdfft?md5=042369489db48c91fd948bcaff44a43e&pid=1-s2.0-S2772416624000470-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141728624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ecological risk assessment framework for microplastics in agricultural soils amended with biosolids","authors":"","doi":"10.1016/j.hazadv.2024.100445","DOIUrl":"10.1016/j.hazadv.2024.100445","url":null,"abstract":"<div><p>This study conceptualizes a framework for ecological risk assessment of microplastics (MPs) in agricultural soils amended with biosolids. MPs in biosolids pose risks to soil biota, affecting soil health. The study highlights the complexity of assessing MP risks, considering not only MPs abundance, but also properties such as size, shape, and type. To develop this framework for ecological risk assessment of MPs in agricultural soils amended with biosolids, a literature review was conducted to systematically assess effects of different MPs properties on soil organisms. Earthworms, springtails, and the microbiome were considered as receptors. The study highlights the importance of understanding MPs fate in soil, since effects on soil biota can be time dependent. Furthermore, results show that organisms respond differently to similar MPs properties, increasing the complexity of assessing MPs risks in terrestrial ecosystems. This complexity also relates to MPs effects on soil properties, and indirect effects on soil biota. Further research is needed to address knowledge gaps for effects of specific MPs properties to better assess and manage ecological risks in agricultural systems.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000469/pdfft?md5=c6d59fd313a8b48f0aeb99664c015732&pid=1-s2.0-S2772416624000469-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141710335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microalgae in removing heavy metals from wastewater – An advanced green technology for urban wastewater treatment","authors":"","doi":"10.1016/j.hazadv.2024.100444","DOIUrl":"10.1016/j.hazadv.2024.100444","url":null,"abstract":"<div><p>The wastewater bioremediation is an emerging research area to meet the existing/increasing water crisis challenges. The Heavy metals persist in water bodies, which can bioaccumulate in the food chain and cause serious health and environmental problems. The deteriorating effects of heavy metals both on human health and the environment have drawn great attention and have become a major area of study. Phycoremediation is one of the most promising areas being explored currently. The conventional methods such as chemical precipitation, ion exchange, membrane filtration, floatation, coagulation-flocculation and electrochemical methods inherit limitations in bringing down the cost of treatment, increasing efficiency and formation of toxic sludge as secondary pollution. The phycoremediation of wastewater serves to be green technology. This review highlights current advances in using different species of microalgae to treat various industrial effluents and mechanism of removal of heavy metals from them. A comprehensive look into microalgae-based systems (MBSs) has been covered to assess the efficiency of different species through extracellular and intracellular mechanisms in biosorption, bioaccumulation and detoxification of various heavy metals. It brings into focus all the emerging technologies in current times that have utilised microalgae in the bioremediation of urban wastewater systems. In addition, challenges, bottlenecks and future prospects of phycoremediation are also discussed with a focus on achieving a circular bioeconomy in water management.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000457/pdfft?md5=38af62ef3f7a2b116b442132686985ec&pid=1-s2.0-S2772416624000457-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141696683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}