Naproxen(NPX),one of the most widely used non-steroidal anti-inflammatory drugs(NSAIDs),has shown an increasing detection frequency in the marine environment in recent years.Due to its pseudo-persistence in aquatic systems,marine organisms may experience long-term low-dose expo-sure,potentially leading to adverse effects.In this study,marine medaka(Oryzias melastigma)was employed as the test organism to investigate the effects of cross-generational(F1 generation and F2 gen-eration)continuous exposure to various NPX concentrations on early development and antioxidant sys-tems.Embryos from two generations were exposed to 0,0.1,1,and 10 μg·L-1 of NPX for 30 days,during which hatching rate,hatching time,heart rate,and larval mortality were measured and recor-ded.Antioxidant system indicators in embryos at 8 days post fertilization were also examined.The re-sults demonstrated that even at environmentally relevant concentrations,NPX caused significant early developmental toxicity in marine medaka.Both generations exhibited marked decreases in hatching rate,consistent heart rate disturbances,and increased larval mortality with rising NPX concentrations.Nota-bly,at 10 μg·L-1,hatching time was prolonged by approximately 20%compared with the control group.Furthermore,NPX exposure triggered oxidative stress in marine medaka embryos,with F2 em-bryos generally showing more severe oxidative damage than F1.Nevertheless,the F2 generation dis-played a certain adaptive response,resulting in a lower mortality rate compared to F1 generation.

Solid-solid phase change materials (SSPCMs) have garnered significant interest for advanced thermal energy management. However, their broader application is often hindered by inadequate mechanical properties, lack of biodegradablity, and absence of self-healing functionality. To overcome these limitations, we designed a series of biodegradable, recyclable, and healable polyurethane-based SSPCMs, designated PU-AB(xy)-PEG6K, through dynamic cross-linking of polyethylene glycol (PEG) with thiourethane bonds and boronic ester. By modulating the molar ratio of chain extenders, the material properties could be precisely tailored. The optimized composition exhibited an exceptional combination of tensile strength similar to 34.34 MPa and elongation at break similar to 786.29%, together with efficient self-healing and recycling capabilities. The material also possessed a high latent heat storage capacity similar to 97.17 J/g. Moreover, it demonstrated controllable biodegradability in natural environments, offering a viable solution to mitigate plastic accumulation. When fabricated into a honeycomb composite laminated with aluminum foil, it provided excellent thermal insulation, prolonging temperature retention by a factor of four compared to a bare aluminum container. This work offers a viable design strategy and a practical pathway for applying such multifunctional SSPCMs in thermal insulation and energy storage applications.

In this study, Mn-Cu/Al2O3 was successfully synthesized by using the ultrasonic impregnation-calcination method for the catalytic ozonation of preservative 4-chloro-3-methylphenol (PCMC). The optimal preparation conditions of Mn-Cu/Al2O3 were investigated, and the catalyst was characterized by using various characterization methods. The generation of oxygen vacancies on the catalyst surface was accompanied with the transition of the valence state of metal oxides (Mn3+/Mn4+ and Cu+/Cu2+), which remarkably promoted ozone decomposition and reactive oxygen species (ROS) generation. The influence of different experimental conditions on PCMC degradation was investigated. The ideal PCMC removal rate of 100 % was achieved in 30 min under optimized conditions with ozone dosage of 4.0 mg/min, Mn-Cu/Al2O3 dosage of 15 g/L and initial pH of 7. The reusability experiments and metal leaching analysis confirmed the catalyst excellent potential for practical engineering applications. The mechanism of Mn-Cu/Al2O3 catalytic ozonation was surmised. Additionally, the potential degradation pathways of PCMC were speculated based on the identified intermediate products.

SrMnO3 demonstrates high efficiency in degrading chlorinated volatile organic compounds (CVOCs). However, the accumulation of chlorine species and the loss of active sites limit the further enhancement of its catalytic performance. To improve the catalytic and chlorine poisoning resistance properties of SrMnO3-based catalyst. A modified hydrothermal method was employed to synthesize a multi-metal-oxides catalyst based on SrMnO3 with Ce introduced to lattice to increase surface defect density. Influences of catalyst dosage, relative humidity, pollutant concentration and airspeed on chlorobenzene (CB) removal efficiency were systematically investigated. The results revealed the great removal efficiency of the multi-metal-oxides catalyst based on SrMnO3 with T90 of 247 ℃, T95 of 269 ℃, and the mineralization rate of 71

Fe-doped BiOBr photocatalyst with Fe ion being doped into the BiOBr lattice by replacing Bi3+ were prepared. Under the visible light irradiation for 60 min, the removal efficiency of crystal violet (CV) by Fe-BiOBr photocatalyst (Fe content of 3 %) was 96.8 %, which was superior to the photocatalyst systems with other doping ratios. Analyzing the intermediates of CV degradation by Fe-BiOBr, the possible competing pathways for CV degradation were proposed to be (i) n-demethylation and (ii) oxidative ring cleavage of benzene producing carboxylic acids. Differential charge density analysis of Density Functional Theory (DFT) revealed that electron transfer was occurred nearby the Fe atoms. The transfer electron reduced O2 to O2 center dot-, which could improve the redox capacity of the photocatalyst. This work provides data references for the construction of transition metaldoped BiOBr photocatalyst systems and reveals the mechanism by which this system controls pollutants effectively.

Bioelectrochemical systems (BES) have gained considerable attention in the past decade as a potentially sustainable and cost-effective method for coal chemical wastewater (CCW) treatment. However, a scarcity of studies focusing on the recovery NH4+-N in the recycling treatment of CCW via BES technology. In this study, a BES-ammonium recovery system (BES-ARS) was proposed to remove phenol and NH4+-N simultaneously, while NH4+-N was further recovered in a downstream recovery unit. Through systematic evaluation, we identified optimal condition for both phenol and NH4+-N removal. Specifically, an influent phenol-to-ammonium ratio of 2.0 was found to be ideal for maximizing simultaneous removal efficiency. Additionally, an evaluation of the nitrogen distribution showed that 97.9 % of NH4+-N migrated to the cathode chamber, with 82.5 % of NH4+-N being recovered in the absorbent under optimal condition. Furthermore, the solution not only reduces operational costs by up to 68 % compared to conventional treatments, but also conserves energy. This study presents an efficient and environmentally friendly treatment method for treating CCW, while recovering NH4+-N as a valuable resource.

Non-steroidal anti-inflammatory drugs (NSAIDs), though designed to target specific molecular pathways, pose significant environmental risks to non-target organisms, particularly marine fish. This study investigated the toxicity mechanisms and adaptive responses to diclofenac (DCF) and meloxicam (MEX) during the early life stages (ELS) of Oryzias melastigma at environmentally relevant concentrations over a 31-day period. Mechanistic investigations of sub-lethal effects were conducted using Enzyme-Linked Immunosorbent Assay (ELISA), RNA sequencing (RNA-Seq) and quantitative PCR (qPCR). The results revealed that cyclooxygenase (COX) inhibition disrupted the renin-angiotensin system, leading to an accumulation of angiotensin II and cardiovascular developmental defects. Additionally, downregulation of the pla2 gene reduced substrates essential for COX enzyme activity, exacerbating the effects. Although NSAIDs are known to affect the digestive system, no significant effects on developmental factors were observed. RNA-Seq and qPCR analyses revealed an adaptive upregulation of key genes, including ace2 and cyp7a1, involved in cardiovascular and metabolic regulation. Furthermore, 16S rRNA sequencing identified shifts in the microbial community, particularly in g_Rubritalea and g_Sphingomonas genera. Both the upregulated genes and the altered microbial taxa likely played a role in mitigating toxic effects and promoting homeostasis. Moreover, molecular docking suggested that MEX exhibited stronger sub-lethal effects than DCF, likely due to its higher binding affinity to COX. These findings provide valuable insights into NSAID toxicity mechanisms in marine fish, highlighting the importance of adaptive responses in countering environmental stress and underscoring the long-term ecological risks of chronic NSAID exposure.

Up-concentration of organic matter plays a crucial role in recovering carbon resources and energy from municipal wastewater, and the capture of dissolved organic matter during coagulation process is essential for enhancing carbon separation and recovery efficiency. In this study, we employed active coke adsorption combined with ferric chloride (FeCl3) coagulation process to enhance organic matter capture efficiency from municipal wastewater. Subsequently, the anaerobic methanation performance and microbial mechanism of the resulting carbon-rich sludge were investigated. Results indicated that the combined process increased organic matter capture efficiency by 0.8 %- 29.2 % compared to single coagulation treatment. Prepositive active coke adsorption within the FeCl3 coagulation process achieved superior carbon capture performance compared to synchronous and postpositive configurations. Optimal dosage for adsorption-coagulation process using FeCl3 of 43.65 mg Fe/L and active coke of 7.6 mg/L was obtained by applying an integrative response surface methodology (RSM) coupled nonlinear programming approach under effluent COD constraint of 48 mg/L. The integrative optimization resulted in a 47.9 % cost reduction compared to the RSM optimized condition. Anaerobic experiments demonstrated that utilization of active coke adsorption boosted organic matter capture, resulting in a 22.1 % increase in methane yield (CH4/m3 wastewater) compared to using coagulation alone. Microbial community structure analysis showed that active coke promoted enrichment of acetoclastic methanogen and electroactive microorganisms. These findings posed ideas and technical support for strengthening carbon separation and recovery efficiency from municipal wastewater.

Triclocarban (TCC), a novel antimicrobial agent found in personal care products, has been extensively detected in marine environments. However, research on the toxic effects of TCC on marine organisms remains inadequate. This study delved into the subchronic toxic effects of TCC on the early life stages of marine medaka (Oryzias melastigma, O. melastigma), revealing that TCC could reduce embryo heart rate and hatching rate while diminishing the survival rate of larvae. Biomarker assays indicated that TCC could inflict damage on the embryos' antioxidant and nervous systems. Transcriptomic analysis suggested that TCC could impact cell growth, reproduction, and various life processes, activating cancer signaling pathways, increasing the likelihood of cancer, and exerting toxic effects on the immune and osmoregulatory systems. To validate and enhance our understanding of TCC's unique toxic impact on the osmoregulatory system of O. melastigma, we conducted homology modeling and molecular docking analyses on the protein involved in osmoregulation. The study intuitively revealed the potential binding affinity of TCC to sodium/potassium-transporting ATPase subunit alph (ATP1A1), indicating its ability to disrupt osmotic balance in marine fish by affecting this target protein. In summary, the results of this study will further enhance our comprehension of the potential toxic effects and mechanisms of TCC on the early stages of marine fish, with a specific focus on its unique toxic effects in osmoregulation.

In order to study the effects of common ionic components in wastewater on the catalytic performance and salt resistance of the Fe-Bi@γ-Al2O3 catalyst, hydroquinone was selected as the target organic pollutant. Five factors, namely cation species, anion species, total hardness, total alkalinity, and TDS were studied to investigate the effects of different ionic components on the degradation of hydroquinone by the Fe-Bi@γ-Al2O3 catalyst. K+ and Na+ had basically no effect on the COD removal rate, and the COD removal rates were 81.43

Photocatalytic algal removal is an environmentally friendly and low-cost algal bloom control technology. In this paper, nano-sized carbon nitride nanosheets (SCN) were synthesized and combined with ZIF-8 and Ag/AgCl to construct Ag/AgCl/ZIF-8/SCN heterojunction photocatalysts for the inactivation of Microcystis aeruginosa in visible light, and the removal rate of chlorophyll a was close to 100% in 300 min. Three-dimensional fluorescence spectrograms and cellular SEM maps revealed the removal of algae and their organic matter, and the mechanism of Ag/AgCl/ZIF-8/SCN photocatalytic algal removal was explored in conjunction with the changes in membrane permeability and various physiological functions. Mechanistic studies showed that excess O2 played a crucial role in cell inactivation and organic matter degradation. This study provides new ideas and support for the application of harmful algal bloom control and the mechanism of algal cell inactivation in real water bodies.

Photocatalytic algal removal is an environmentally friendly and low-cost algal bloom control technology. In this work, carbon nitride nanosheets based on morphology control were synthesized, and a ternary Z-scheme photocatalyst was designed through heterojunction engineering for photocatalytic removal of harmful algae and their organic matter, and the removal rate of chlorophyll a was close to 100 % in 300 min. Three-dimensional fluorescence spectrograms and cellular SEM maps revealed the removal of algae and their organic matter, and the mechanism of Ag/AgCl/ZIF-8/SCN photocatalytic algal removal was explored in conjunction with the changes in membrane permeability and various physiological functions. Mechanistic studies showed that excess O2 & sdot;- played a crucial role in cell inactivation and organic matter degradation. Oxidative stress caused by O2 & sdot;promoted the accumulation of H2O2 in cells and accelerates cell death. This study provides new ideas and support for the application of harmful algal bloom control and the mechanism of algal cell inactivation in real water bodies.

Exploring an efficient and photostable heterojunction photocatalyst is a pivotal scientific topic for global energy and environmental concerns. Herein, we demonstrated an efficient and facile strategy to synthesize of Bi 2 MoO 6 /g-C 3 N 4 heterojunctioned nanosheets (denoted as BM/CNs hereafter). The photocatalytic degradation of Rh B as a model pollutant indicated that the optimized 40%-BM/CNs catalyst could degrade 96.3% Rh B solution within 120 min. The degradation efficiency was 4.2 times and 6.8 times higher than that of pure Bi 2 MoO 6 and pristine g-C 3 N 4 , respectively. The enhanced photocatalytic performance of 40%-BM/CNs catalyst might be mainly attributed to the construction of Z-scheme heterostructure, which effectively improved the efficiency of electron–hole separation. This work proposed a possible Z-scheme photocatalytic mechanism to elucidate the enhanced photochemical properties.

近年来,海水青鳉(Oryzias melastigma)已经被公认为海洋生态毒理学研究中的一种模式生物,其具有与淡水模式生物斑马鱼(Danio rerio)类似的研究特征优势,如世代时间短(3～4个月)、每日产卵、成鱼尺寸小(2.5～3.5 cm)、胚胎透明、性别二态性以及易于进行实验室规模化养殖等.在过去十余年中,国内外的研究者们对海水青鳉进行了广泛的基因组和蛋白质组研究.这些组学数据能够进一步帮助我们在分子层面了解环境胁迫对海洋生物的潜在影响及其可能的毒性机制.在这篇综述中,我们归纳了海水青鳉作为海洋生态毒理学研究模型的优势,介绍了当前用于海水青鳉基因/蛋白质组学的技术方法,整理了基因/蛋白质组学在研究不同种类的海洋环境压力源对海水青鳉毒性效应的应用现状.最后,我们对未来海水青鳉的研究提出了一定的预期与展望.

In this study, Fe-Bi@ & gamma;-Al2O3 was used as a catalyst to construct a heterogeneous catalytic ozonation system for the treatment of high-salinity organic wastewater and its biochemical verification was studied. The optimum operating conditions and degradation mechanism of Fe-Bi@ & gamma;-Al2O3 catalytic ozonation of high salinity wastewater were systematically investigated. The biodegradability of wastewater before and after treatment was also studied. Under the optimum operating conditions of ozone dosage of 160 mg/L, catalyst filling rate of 15%, ratio of height to diameter of 15, hydraulic retention time of 210 min and recycle ratio of 500%, the removal rate of COD is 45.13%. The mechanical strength of Fe-Bi@ & gamma;-Al2O3 catalyst is almost unchanged after being reused for 20 times. The results of Ultraviolet and visible spectrophotometry (UV-Vis), 3D (Three-Dimensional) -fluores-cence and Gas Chromatography-Mass Spectrometer (GC-MS)showed that humus, fulvic acid and undissolved microbial organic matter were degraded. In the biochemical verification experiment, after the high salinity wastewater was used to impact the bio-reactor, the mixed liquor suspended solids (MLSS) was basically stable at 9597 mg/L, 8856 mg/L, 9414 mg/L and 8741 mg/L, and the mixed liquor volatile suspended solids (MLVSS) was basically stable at 7042 mg/L, 6940 mg/L, 6949 mg/L and 6519 mg/L. The dissolved oxygen (DO) in the four reactors were 2.9 mg/L, 3.48 mg/L, 3.6 mg/L and 2.92 mg/L respectively, and the sludge Volume Index (SVI30) were 93 mL/g, 98 mL/g, 93 mL/g and 91 mL/g respectively. After two cycles (20d) of 30% high salinity wastewater, the chemical oxygen demand (COD) removal rates of the four reactors were 78%, 84%, 86% and 91%, respectively. When the reaction time is 40 min, the BOD5/COD (B/C) value of the high-salinity wastewater reaches 0.91, and the biodegradability of the wastewater is improved significantly. Scanning electron microscope (SEM) showed that the granular sludge in the reactor had compact structure and smooth surface, and there were a lot of fungi and filamentous microorganisms on the sludge surface.in that condition of salinity stress, the microbial community in the activate sludge changed to a great extent, and Proteobacteria and Bacteroidetes became the main phylum. The Fe-Bi@ & gamma;& gamma;-Al2O3 catalyst has good catalytic performance and can be used for deep treatment of high-salt organic wastewater.

The nonradical pathway selectively oxidizes pollutants with less interference from environmental factors, which can effectively improve the environmental suitability of peroxymonosulfate (PMS) activation. Herein, a Co-doped nanotubular carbon nitride catalyst (Co-CNNT) based on CoNx sites was constructed for stable and effi-cient PMS activation with a better specific surface area, number of CoNx sites, and electron transfer capability than Co-doped lamellar carbon nitride catalyst (Co-CN). Co-CNNT improved PMS utilization efficiency (similar to 50%) and enhanced the contribution of the electron transfer pathway to tetracycline (TET) degradation. The enhanced ability of Co-CNNT to adsorb PMS leads to Co-CNNT-PMS* generated by PMS at the CoNx site, which raises the Co-CNNT surface potential and allows PMS to be activated in a manner that captured electrons. Thus, the Co-CNNT/PMS system could effectively destroy electron-rich or low-potential pollutants within 24 min. The stronger environmental adaptability allows it to maintain catalytic activity in complex aqueous matrices, achieving effective oxidation of diluted tetracycline-based pharmaceutical wastewater. This paper reveals the effects of carbon nitride morphology control strategies on the properties of CoNx active sites and PMS activation mechanisms, providing new insights into the induction of nonradical PMS activation pathways.

With the continuous expansion of industrial enterprises, a large amount of high-salt wastewater with complex components is produced. Direct discharge will cause great harm to the ecosystem and waste a large amount of potential salt resources. This paper summarizes the source, water quality characteristics, and environmental impact of high-salinity wastewater, and introduces the desalination and treatment technologies of high-salinity wastewater. The desalination technology of high-salinity wastewater mainly includes two processes: concentration and crystallization, obtaining concentrated solution through membrane concentration or thermal concentration and then carrying out crystallization treatment on the concentrated solution, thereby realizing the recovery of salt. The advanced treatment technologies of high-salinity wastewater were analyzed, including physicochemical treatment, biological treatment, and coupling treatment. Catalytic ozonation is one of the most widely used physicochemical technologies for the advanced treatment of high-salinity wastewater. Biological treatment processes operating in the presence of halotolerant bacteria show excellent performance at high salinity. High salinity has a negative impact on the performance of various physicochemical processes and biological treatment technologies. However, high salinity has little effect on the performance of a coupled system designed to treat high-salinity wastewater. In this review, the effect of salinity on the scaling and corrosion of equipment is also illustrated. It is suggested that the research direction of high-salinity wastewater should be to develop new membrane materials and catalysts, develop salt-tolerant microorganisms, explore high-efficiency and energy-saving physico–chemical–biochemical combination processes, improve the treatment efficiency of high-salinity organic wastewater, and reduce treatment costs.

Co-Zn-N-C catalyst (MCZC) with neighboring Co and Zn pairs anchored on hollow carbon nitride was con-structed by the direct etching of zeolitic imidazolate frameworks assembled with Co and Zn. Adequate charac-terizations and density functional theory (DFT) studies confirmed the successful construction of non-bonding Co and Zn pairs with enhanced electron transfer on Co sites by adjacent Zn sites. Based on the synergy of adjacent Co and Zn atom pairs, the MCZC/Perxymosulfate (PMS) system achieved 99.6% Tetracycline (TC) degradation in 24 min with a mineralization rate of 55.8% and PMS decomposition efficiency of 73.1%. DFT calculation based on the Fukui index identified the sites susceptible to attack by the active species. TC degradation pathways could be inferred, and reduced toxicity of intermediates was observed. This work provides new insights into the design of MOF-derived bimetallic catalysts and the importance of the interaction between adjacent metal active sites to catalytic performance.

In order to investigate the corrosion mechanism of waste salt thermochemical treatment and screen suitable metal materials for use in the reactor,several common alloy materials,including 316L,Inconel625,Incoloy825,C276 and TA2,were selected and subjected to a 20 h short-term corrosion tests at 800,850 and 900℃ in 80％NaCl-20％Na2SO4mixed salt.Results showed that Inconel625 could be used in the waste salt thermochemical treatment device.The Inconel625 alloy was subjected to a 10 d corrosion test.The corrosion products were analyzed by X-ray diffraction(XRD),scanning electron microscopy(SEM)and energy spectrum analysis(EDS).The main corrosion products were found to be NiO and Cr2O3.It was determined that the corrosion behavior followed the corrosion mechanism"oxidation activation theory"and the"acid-base melting model".