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Soil contamination with microplastics (MPs) from treated wastewater and sewage sludge: risks and sustainable mitigation strategies

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Discover Environment 2024年第1期2卷 1-23页

作者： Hechmi, Sarra Bhat, Mansoor Ahmad Kallel, Amjad Khiari, Oumaima Louati, Zeineb Khelil, Mohamed Naceur Zoghlami, Rahma Inès Cherni, Yasmine Melki, Samira Trabelsi, Ismail Jedidi, Naceur Water Research and Technology Centre University of Carthage P.O. Box 273 Soliman 8020 Tunisia Government Higher Secondary School Salamabad Uri Kashmir Baramulla 193123 India Laboratory of Water Energy & Environment Sfax National School of Engineering University of Sfax Sfax Tunisia High Institute of Environmental Science and Technology of Borj Cedria University of Carthage P.O. Box 1003 Hammam Lif 2050 Tunisia National Institute for Research in Rural Engineering Water and Forestry University of Carthage Ariana 2080 Tunisia Laboratory of Agronomic Sciences and Techniques (LR16 INRAT 05) National Institute of Agricultural Research (INRAT) University of Carthage Ariana 2049 Tunisia

This review explores the hidden hazards associated with the reuse of treated wastewater and sewage sludge in agriculture while proposing mitigation strategies. It examines the origins and pathways of microplastics (MPs) in wastewater treatment plants and how these pollutants infiltrate agricultural ecosystems. The review assesses the effectiveness of MP removal from wastewater and its fate in soil after reuse, highlighting contamination dynamics and the need for proactive measures. Introducing soil remediation methods is crucial for addressing this issue. Alarming evidence of MPs in human blood, testis, semen, and placenta underscores the urgency for solutions, revealing significant threats to human health, particularly reproductive health. The review advocates for sustainable agricultural practices and effective soil remediation strategies to mitigate MP contamination, promoting environmental preservation, food safety, and human health protection. © The Author(s) 2024.

关键词： Biodegradation Circular economy Microplastic (MP) Soil remediation Sustainable practices Wastewater

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Oxidation of Ibuprofen in Water by Uv/O3 Process: Removal, Byproducts, And Degradation Pathways

SSRN

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SSRN 2023年

作者： Chang, Jing Wang, Yibo Zhang, Yaxue Zhang, Wenjuan Zhang, Rui Wang, Zhe Wang, Shaopo School of Environmental and Municipal Engineering Tianjin Key Laboratory of Aquatic Science and Technology Tianjin Chengjian University Tianjin300384 China Tianjin Capital Environmental Protection Group Company Limited Tianjin300381 China Shenzhen Water Planning and Design Institute Company Limited Shenzhen518000 China School of Environmental Science and Safety Engineering Tianjin University of Technology Tianjin300384 China

The degradation, mineralization, reaction byproducts, and degradation pathways of ibuprofen (IBP) by the UV/O3 process were investigated in this study, and the results were compared with that obtained during both O3 and UV processes. The efficiency of the UV/O3 process was significantly higher than those of the individual O3 and UV processes for IBP degradation and mineralization. As the reaction proceeded, the pH value (4.0, 6.0, 8.0, and 10.0) influenced the UV/O3 process only at the beginning of reaction, after which the effect weakened. In comparison, the coexisting organic matter of humic acid (HA) (1 and 5 mg/L) had no remarkable effects. Moreover, the experiment of t-Butanol (TBA) inhibition demonstrated that the indirect oxidation of HO• played an important role in the UV/O3 process. Eleven byproducts with -OH/-COOH functional groups were identified, most of which were the chain products with 2–6 carbons, and their formation and transformation occurred within 10 min. During the UV/O3 process, IBP and its byproducts were degraded via multiple pathways, that is, not only via the HO• route but also via O3 molecular and UV radiation routes, making UV/O3 a potential method for removing IBP from real water. © 2023, The Authors. All rights reserved.

关键词： Mineralogy

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Immobilization of carbonic anhydrase for facilitated CO2 capture and separation

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Chinese Journal of Chemical engineering 2020年第11期28卷 2817-2831页

作者： Zhenhua Wu Yan Nan Yang Zhao Xueying Wang Shouying Huang Jiafu Shi Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering&TechnologyTianjin UniversityTianjin 300072China School of Environmental Science&Engineering Tianjin UniversityTianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072China

Carbonic anhydrase(CA)as a typical metalloenzyme in biological system can accelerate the hydration/dehydration of carbon dioxide(CO2,the major components of greenhouse gases),which performer with high selectivity,environmental friendliness and superior ***,the free form of CA is quite expensive(~RMB 3000/100 mg),unstable,and non-reusable as the free form of CA is not easy for recovery from the reaction environment,which severely limits its large-scale industrial *** immobilization may solve these problems at the same *** this context,many efforts have been devoted to improving the chemical and thermal stabilities of CA through immobilization *** recently,a wide range of available inorganic,organic and hybrid compounds have been explored as carrier materials for CA immobilization,which could not only improve the tolerance of CA in hazardous environments,but also improve the efficiency and recovery to reduce the cost of large-scale application of *** excellent reviews about immobilization methods and application potential of CA have been *** contrast,in our review,we stressed on the way to better retain the biocatalytic activity of immobilized CA system based on different carrier materials and to solve the problems facing in practical operations *** concluding remarks are presented with a perspective on constructing efficient CO2 conversion systems through rational combining CA and advanced carrier materials.

关键词： Carbon dioxide Carbonic anhydrase Enzyme immobilization Capture and separation Carrier materials

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Improving the representation of cost of capital in energy system models

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Joule 2023年第3期7卷 469-483页

作者： Lonergan, Katherine E. Egli, Florian Osorio, Sebastian Sansavini, Giovanni Pahle, Michael Schmidt, Tobias S. Steffen, Bjarne Institute of Energy and Process Engineering ETH Zurich Zurich8092 Switzerland Reliability and Risk Engineering ETH Zurich Zurich8092 Switzerland Energy and Technology Policy Group ETH Zurich Zurich8092 Switzerland Institute for Innovation and Public Purpose University College London LondonWC1B 5BP United Kingdom Member of the Leibniz Association PotsdamD-14473 Germany Institute for Science Technology and Policy ETH Zurich Zurich8092 Switzerland Andlinger Center for Energy and the Environment Princeton University PrincetonNJ08544 United States Center for Policy Research on Energy and the Environment Princeton University PrincetonNJ08544 United States Climate Finance Policy Group ETH Zurich Zurich8092 Switzerland Center for Energy and Environmental Policy Research Massachusetts Institute of Technology CambridgeMA02139-4307 United States

Energy system models suggest optimal investment pathways and guide policymakers in implementing the low-carbon energy transition. Although model accuracy greatly improved over the last decade, it is unclear whether the cost of capital (CoC) is well represented, despite the parameter's strong influence on model outcomes. In this perspective, we review 58 model-based publications that explicitly refer to CoC and observe that simply stating unfounded assumptions remains the most important "method" for determining the CoC. Overall, there appears to be a clear lack of guiding principles for how to appropriately determine CoC for use within models. To close this gap, we identify four barriers to a more accurate CoC reflection and suggest practical steps for overcoming them, including heuristic guidelines to support modelers in determining when differentiated CoC rates ought to be applied. Overall, we believe more rigorous treatment of the CoC will improve the quality of model-based policy advice. © 2023 Elsevier Inc.

关键词： Investments

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Enhanced porphyrin-based fluorescence imaging-guided photodynamic/photothermal synergistic cancer therapy by mitochondrial targeting

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science China Materials 2022年第2期65卷 527-535页

作者： Denghui Shang Qilin Yu Wei Liu Shouting Zhang Yi Li Jing Chen Zhen Zhang Xiaoquan Lu Key Laboratory of Bioelectrochemistry&Environmental Analysis of Gansu Province College of Chemistry&Chemical EngineeringNorthwest Normal UniversityLanzhou 730070China Tianjin Key Laboratory of Molecular Optoelectronic Science Department of Chemistry School of ScienceTianjin UniversityTianjin 300072China Key Laboratory of Molecular Microbiology and Technology Ministry of EducationDepartment of MicrobiologyCollege of Life ScienceNankai UniversityTianjin 300071China

Mitochondria are the power plants of the cell and play key roles in activating the apoptotic pathway in cancer cells,which are readily susceptible to cytotoxic reactive oxygen species and temperature ***,we develop a"nanomissile"that targets mitochondria to enhance tumor treatment effects by facilitating mitochondrial dysfunction and releasing cytochrome C to activate the apoptotic pathway of cancer cells under 650-nm laser *** polydopamine nanomaterial(PTPF-MitP)is designed as a nanomissile,with integrated O;-evolving photodynamic therapy and moderate photothermal therapy,which can selectively deliver to the mitochondria through a targeting unit,*** cytotoxicity of PTPF-MitP to human lung tumor cells is twice as high as that of PTPF that does not have mitochondrial targeting *** addition,it represents a realtime visualization and highly efficient treatment for tumor sites in *** development represents a viable strategy for cancer therapy.

关键词： porphyrin-based phototherapy mitochondria targeting real-time visualization synergistic cancer therapy hypoxia

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Reducing defect of inorganic perovskite film by sulphur-containing Lewis base for robust photodetectors

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Journal of Energy Chemistry 2021年第10期30卷 163-169,I0005页

作者： Jian Du Jialong Duan Xiya Yang Qingwei Zhou Yanyan Duan Tingting Zhang Qunwei Tang Institute of New Energy Technology College of Information Science and TechnologyJinan UniversityGuangzhou 510632GuangdongChina State Centre for International Cooperation on Designer Low-Carbon and Environmental Material(SCICDLCEM) School of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001HenanChina Guangdong Provincial Key Laboratory of Development and Education for Special Needs Children Lingnan Normal UniversityZhanjiang 524048GuangdongChina

Sluggish charge transfer in perovskite film induced by inherent defects such as uncoordinated Pb2+undoubtedly hinders the rapid response of self-powered photovoltaic-typed *** on interaction between Lewis acids and bases,herein,we employ thiourea molecule as a multifunctional Lewis base to significantly improve the quality of all-inorganic CsPbIBr2 perovskite *** careful characterizations,the quality of perovskite film has been well *** from the reduced defect and the reinforced the interfacial charge extraction owing to the strong interaction between uncoordinated Pb2+ions and the-C=S groups in thiourea and the formation of hydrogen bond at perovskite/TiO_(2) interface,an enhanced responsivity of 0.335 A W-1 and specific detectivity of 3.92×10^(12) Jones has been achieved for the self-powered,carbon-electrode based photodetector,which is comparable to the state-of-theart device based on CsPbIBr2 *** importantly,the device free of encapsulation remains 82.8%of initial performance after storage over 56 days in ambient atmosphere,promoting the practical deployment of perovskite products.

关键词： All-inorganic perovskite Self-powered photodetector Defect passivation Charge transfer Stability

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environmental exposure and ecological risk of perfluorinated substances (PFASs) in the Shaying River Basin, China

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Chemosphere 2023年第1期339卷 139537页

作者： Zhang, Ya-Hui Ding, Ting-Ting Huang, Zi-Yan Liang, Hong-Yi Du, Shi-Lin Zhang, Jin Li, Hui-Xian State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China Environmental Analysis and Testing Laboratory Chinese Research Academy of Environmental Sciences Beijing100012 China Key Laboratory of Yangtze River Water Environment Ministry of Education College of Environmental Science and Engineering Tongji University Shanghai200092 China Hangzhou Yanqu Information Technology Co. Ltd Hangzhou310005 China School of Environmental and Chemical Engineering Yanshan University Qinhuangdao066004 China Key Laboratory of Water Pollution Control and Waste Water Resource of Anhui Province College of Environment and Energy Engineering Anhui Jianzhu University Hefei230601 China

There have been concerns raised about the environmental effects of perfluoroalkyl substances (PFASs) because of their toxicity, widespread distribution, and persistence. Understanding the occurrences and ecological risk posed by PFASs is essential, especially for the short-chain replacements perfluorobutanoic acid (PFBA) and perfluorobutane sulfonic acid (PFBS), which are now becoming predominant PFASs. The lack of aquatic life criteria (ALC), however, prevents an accurate assessment of the ecological risks of PFBA and PFBS. This study thus investigated the occurrence of 15 PFASs at 29 sampling sites in Shaying River Basin (in China) systematically, conducted the toxicity tests of PFBA and PFBS on eight resident aquatic organisms in China, and derived the predicted non-effect concentration (PNEC) values for PFBA and PFBS for two environmental media in China. The results showed that the total PFASs concentrations (ΣPFASs) ranged from 5.07 to 20.32 ng/L (average of 10.95 ng/L) in surface water, whereas in sediment, ΣPFASs ranged from 6.46 to 20.05 ng/g (dw) (average of 11.51 ng/g). The presence of PFBS was the most prominent PFASs in both water (0.372–8.194 ng/L) and sediment (4.54–15.72 ng/g), demonstrating that short-chain substitution effects can be observed in watersheds. The PNEC values for freshwater and sediment were 6.60 mg/L and 8.30 mg/kg (ww), respectively, for PFBA, and 14.04 mg/L, 37.08 mg/kg (ww), respectively, for PFBS. Ecological risk assessment of two long-chain PFASs, perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), and two short-chain PFASs, PFBA and PFBS, using the hazard quotient method revealed that Shaying River and other major River Basins in China were at risk of PFOS contamination. This study contributes to a better understanding of the presence and risk of PFASs in the Shaying River and first proposes the ALCs for PFBA and PFBS in China, which could provide important reference information for water quality standards. © 202

关键词： Rivers

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An Innovative Fast-Start Aerobic Anode Microbial Fuel Cell Biosensor for Copper Ion Detection

SSRN

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SSRN 2023年

作者： Wang, Jie Dong, Bin Shen, Zhiqiang Zhou, Yuexi School of Environmental Science and Engineering Tongji University Shanghai200092 China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environment Sciences Beijing100012 China Research Center of Environmental Pollution Control Engineering Technology Chinese Research Academy of Environmental Sciences Beijing100012 China

The potential of microbial fuel cells (MFCs) based biosensors for water monitoring and early warning is widely recognized. However, the formation of electrochemically active biofilms (EABs) in MFCs typically requires a lengthy time span, and these biosensors are predominantly used in anaerobic wastewater treatment, limiting their broader application and technological advancement. In this study, we sought to address these challenges by employing aerobic sludge as an inoculation source to construct an MFCs sensing system, which proved to be a highly effective approach. Our findings revealed that biofilms with stable electrochemical properties could be promptly formed within 13 hours, representing a more than 90% reduction in start-up time compared to previous studies. Moreover, toxicity tests demonstrated outstanding performance, with maximum inhibition rates of 19.99%, 46.65%, and 53.02% observed for copper (Cu2+) ions at respective concentrations of 1 mg/L, 10 mg/L, and 50 mg/L, highlighting the exceptional toxicity response of the system. Remarkably, the response time was found to decrease significantly with increasing copper ion concentrations. Our results thus open up new avenues for achieving rapid start-up of MFCs sensors and enhancing the applicability of MFCs based biosensing technology. © 2023, The Authors. All rights reserved.

关键词： Anodes

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Tracing terrestrial groundwater discharge and porewater exchange derived dissolved carbon export in a tropical estuary using multiple isotopes

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Journal of Hydrology 2023年第PartA期622卷

作者： Wang, Qianqian Tang, Gang Jiang, Shan Wang, Xuejing Xiao, Kai Yu, Shengchao Cai, Pinghe Kuang, Xingxing Li, Hailong School of Environmental Science and Engineering Southern University of Science and Technology Shenzhen518055 China Guangxi Laboratory on the Study of Coral Reefs in the South China Sea Guangxi University Nanning530004 China State Key Laboratory of Estuarine and Coastal Research East China Normal University Shanghai200241 China School of Earth System Science Tianjin University Tianjin300072 China State Key Laboratory of Marine Environmental Science Xiamen University Xiamen361005 China

Coastal terrestrial groundwater discharge and porewater exchange are two different submarine groundwater discharge (SGD) pathways. The contribution of both pathways in dissolved carbon export to the coastal water remains almost unknown. Here, we investigated terrestrial groundwater discharge, porewater exchange, and dissolved carbon export in a tropical estuary (Moyangjiang, China) using stable water (δ2H and δ18O) and radioactive (222Rn, 224Ra, and 228Th) isotopes. The average terrestrial groundwater discharge was estimated to be (3.2±0.2) × 106 m3 d−1 by a three end-member mixing model of δ18O and salinity. The porewater exchange was estimated to be 11.3±0.14 cm d−1 by the 224Ra/228Th disequilibrium method. Accordingly, dissolved organic carbon (DOC) and dissolved inorganic carbon (DIC) fluxes from terrestrial groundwater discharge were estimated to be (1.19±0.10) × 107 and (3.23±0.25) × 105 mol d−1, respectively. In comparison, when upscaling to the whole estuary, DIC and DOC export fluxes from porewater exchange were estimated to be (1.56±0.21) × 105 and (2.12±0.29) × 105 mol d−1, respectively. Terrestrial groundwater discharge derived DIC flux was two orders of magnitude greater than that from porewater exchange, and was three times greater than that from river discharge. Terrestrial groundwater discharge was recognized as a significant contributor to DIC export. Porewater exchange played a disproportionately important role in the delivery of DOC to the ocean, and its contribution to DOC needed to be emphasized. Overall, both pathways contributed a large amount of dissolved carbon export to the coastal water, and play an important role in delivering terrestrial carbon across land-ocean interface. Evaluating the contributions of different pathways of SGD to terrestrial solutes will help to improve the accuracy of SGD associated terrestrial solute fluxes. © 2023 Elsevier B.V.

关键词： Estuaries

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Machine learning-based estimates of aboveground biomass of subalpine forests using Landsat 8 OLI and Sentinel-2B images in the Jiuzhaigou National Nature Reserve,Eastern Tibet Plateau

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Journal of Forestry Research 2022年第4期33卷 1329-1340页

作者： Ke Luo Yufeng Wei Jie Du Liang Liu Xinrui Luo Yuehong Shi Xiangjun Pei Ningfei Lei Ci Song Jingji Li Xiaolu Tang College of Earth Science Chengdu University of TechnologyChengdu 610059People’s Republic of China State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu 610059People’s Republic of China Jiuzhaigou Nature Reserve Administration Aba Tibetan and Qiang Autonomous PrefectureJiuzhai 623402People’s Republic of China College of Ecology and Environment Chengdu University of TechnologyChengdu 610059People’s Republic of China State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil&Water Pollution Chengdu Univer-Sity of TechnologyChengdu 610059People’s Republic of China China Railway Eryuan Engineering Group Co.LtdChengdu 610031People’s Republic of China

Accurate estimates of forest aboveground biomass(AGB)are critical for supporting strategies of ecosystem conservation and climate change *** Jiuzhaigou National Nature Reserve,located in Eastern Tibet Plateau,has rich forest resources on steep slopes and is very sensitive to climate change but plays an important role in the regulation of regional carbon ***,an estimation of AGB of subalpine forests in the Nature Reserve has not been carried out and whether a global biomass model is available has not been *** provide this information,Landsat 8 OLI and Sentinel-2B data were combined to estimate subalpine forest AGB using linear regression,and two machine learning approaches–random forest and extreme gradient boosting,with 54 inventory *** of forest type,Observed AGB of the Reserve varied from 61.7 to 475.1 Mg hawith an average of 180.6 Mg *** indicate that integrating the Landsat 8 OLI and Sentinel-2B imagery significantly improved model efficiency regardless of modelling *** results highlight a potential way to improve the prediction of forest AGB in mountainous *** AGB indicated a strong spatial ***,the modelled biomass varied greatly with global biomass products,indicating that global biomass products should be evaluated in regional AGB estimates and more field observations are required,particularly for areas with complex terrain to improve model accuracy.

关键词： Aboveground biomass Linear regression Random forest Extreme gradient boosting Landsat 8 OLI Sentinel-2B

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