Environmental Technology & Innovation最新文献

{"title":"Enhancing soil organic carbon sequestration at different depths: The role of chitin-rich organic amendment in salt-affected soils","authors":"He Zhang ,&nbsp;Yuanyuan Peng ,&nbsp;Caroline De Clerck ,&nbsp;Guihua Li ,&nbsp;Jianfeng Zhang ,&nbsp;Aurore Degré","doi":"10.1016/j.eti.2025.104395","DOIUrl":"10.1016/j.eti.2025.104395","url":null,"abstract":"<div><div>Chitin-rich organic amendments are known for enhancing soil aggregation and mitigating salinity, yet their effects on subsoil organic carbon (SOC) remains underexplored. An experiment was conducted in a greenhouse vegetable production system, employing three treatments: CK (no amendment), SC (chitin-rich organic amendment), and ST (bio-organic amendment). Soil samples were collected from both the topsoil (0–20 cm) and subsoil (20–40 cm) layers. The results revealed significant increase in soil electrical conductivity (EC), salt ion content, labile SOC fractions under organic amendment treatments in both soil layers. In the topsoil, a notable reduction in pH and enhanced desalination rate were observed. The bio-organic amendment notably increased the proportion of large macroaggregates and aggregate stability in both layers. In contrast, the chitin-rich organic amendment specifically enhanced small macroaggregates in the topsoil and large macroaggregates in the subsoil (<em>P</em> &lt; 0.05). Redundancy analysis identified soil pH as a crucial factor influencing topsoil aggregation, while EC, Mg²⁺, and Ca²⁺ were critical for subsoil aggregation. Organic amendments increased SOC, with higher Ca²⁺ and Mg²⁺ levels under lower pH in the topsoil improving aggregate stability. In the subsoil, elevated EC, primarily driven by increased Ca²⁺ and Mg²⁺ (excluding Na⁺), facilitated aggregate formation and accumulation of recalcitrant organic carbon, thereby contributing to SOC stabilization. These findings underscore the potential of chitin-rich and bio-organic amendments to improve soil structure and to enhance carbon sequestration in both topsoil and subsoil. This has important implications for sustainable soil management in secondary saline greenhouse vegetable systems.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"40 ","pages":"Article 104395"},"PeriodicalIF":6.7,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tracking the transport of europium-labeled polystyrene nanoplastics in natural soils: Insights from leaching tests under varied environmental condition","authors":"Shengmin Wu ,&nbsp;Zihao Tang ,&nbsp;Baohua Tu ,&nbsp;Yang Gong ,&nbsp;Yuan Zhao ,&nbsp;Lili Shi","doi":"10.1016/j.eti.2025.104398","DOIUrl":"10.1016/j.eti.2025.104398","url":null,"abstract":"<div><div>Nanoplastics pollution has become a significant environmental concern, particularly regarding its effects on soil ecosystems. This study investigates the vertical transport of europium-labeled polystyrene nanoplastics (Eu-NPs) in three distinct natural soils: high-calcium soil (HCS), red soil (RS), and black soil (BS). Leaching column experiments were conducted under simulated rainfall conditions to assess Eu-NP mobility, with concentrations quantified using inductively coupled plasma mass spectrometry (ICP-MS). Results revealed that Eu-NPs exhibited the greatest mobility in HCS, with vertical transport reaching 18 cm after three years of simulated rainfall. In contrast, RS and BS showed minimal transport, with maximum distances of 4 cm and 2 cm, respectively. Temperature fluctuations were found to influence Eu-NPs transport, particularly in HCS, where higher temperatures reduced migration, likely due to enhanced agglomeration. Alternating wet-dry cycles further increased Eu-NP mobility in HCS, while minimal effects were observed in RS and BS. These findings underscore the complex interplay between soil physicochemical properties and environmental factors in governing nanoplastics transport. The study provides important insights into the environmental fate of polystyrene nanoplastics (PS NPs) in natural soils and contributes to bridging the knowledge gap between controlled laboratory assessments and real-world environmental conditions.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"40 ","pages":"Article 104398"},"PeriodicalIF":6.7,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient aqueous degradation of fluoranthene using non-thermal plasma treatment","authors":"Djakaou Iya-Sou ,&nbsp;Chedly Tizaoui ,&nbsp;Nofel Merbahi ,&nbsp;Jalloul Bouajila","doi":"10.1016/j.eti.2025.104390","DOIUrl":"10.1016/j.eti.2025.104390","url":null,"abstract":"<div><div>Fluoranthene (FLT), a polycyclic aromatic hydrocarbon (PAH) classified as a Priority Hazardous Substance, is recognised for its persistence in the environment. This is due to its complex molecular structure and low aqueous solubility, making it particularly challenging to degrade. This study investigated a pin-to-water non-thermal plasma (NTP) reactor for the efficient degradation of FLT in aqueous environments. The Results showed that NTP eliminated FLT rapidly with 100 % degradation in less than 5 min. A linear correlation was observed between the pseudo-first-order reaction rate constant and the applied voltage, with energy efficiency reaching up to 110 mg/kWh. The stable species and physicochemical parameters measured in the liquid phase show varying changes over time, both in the presence and absence of FLT. For instance, the pH of the solution decreased from around 6.6 to 4.5 while the oxidation-reduction potential (ORP) increased steadily as the discharge time increased. H₂O₂ concentrations revealed its consumption during the first 10 min of plasma exposure, indicating H₂O₂ contribution to FLT degradation. Additionally, LC-ESI-MS/MS analysis identified nine by-products, primarily resulting from nitration and hydroxylation reactions. Both LC-ESI-MS/MS analysis and Fukui function indices determined through Density Functional Theory calculation provided insights into the reaction mechanism. Overall, this study highlights the effectiveness and potential of NTP for the treatment of PAH-contaminated waters.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"40 ","pages":"Article 104390"},"PeriodicalIF":6.7,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reducing methane emissions from gravity sewer pipelines by ultrasonication","authors":"Mohamadali Mohit ,&nbsp;Masoud Makian ,&nbsp;Om Prakash ,&nbsp;Gyeongcheol Kim ,&nbsp;Hojung Rho ,&nbsp;Jong-Han Lee ,&nbsp;Dong-Hoon Kim","doi":"10.1016/j.eti.2025.104391","DOIUrl":"10.1016/j.eti.2025.104391","url":null,"abstract":"<div><div>Methane (CH₄), a potent greenhouse gas (GHG), is a major concern in sewer pipelines, and its emissions can increase with food waste (FW) introduction via disposer systems. To mitigate these emissions, several chemical approaches have been attempted, yet they face environmental and economic challenges. In this study, ultrasonication was applied inside sewer pipelines at different intervals (30 min once every 4, 5, and 6 weeks) to evaluate its long-term effect on CH₄ emission reduction. Two lab-scale gravity sewer pipelines (7 m long, 80 mm diameter) were constructed and fed with: only domestic wastewater (R1) and domestic wastewater plus FW (R2). FW addition increased CH₄ emissions from 52 to 110 mL CH₄/L_sewage, due to higher organics entering the sewer pipelines (500→1000 mg COD/L). Following ultrasonication, CH₄ emissions decreased by 40–56 % and 34–39 % in R1 and R2, respectively, attributed to biofilm detachment, as confirmed by changes in extracellular polymeric substances concentration and shear stress test. The average daily GHG reduction by ultrasonication was 10.5, 9.2, and 7.7 g CO₂ eq./d for R1, and 15.8, 14.6, and 13.9 g CO₂ eq./d for R2, at 4-, 5-, and 6-week intervals, respectively, clearly indicating a revival in CH₄ emissions. Considering the energy use, net GHG reduction effectiveness significantly dropped with longer intervals in R1 (38→28 %), while remaining relatively stable (28–30 %) in R2. These results emphasize the importance of shortening ultrasonication intervals, particularly when only domestic wastewater is conveyed in the sewer pipelines.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"40 ","pages":"Article 104391"},"PeriodicalIF":6.7,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144685632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Risks of microplastics on germination and growth of pepper (Capsicum annuum L.) depending on the type, concentration, and particle size","authors":"Guiming Liu ,&nbsp;Shutao Wang ,&nbsp;Fang Feng ,&nbsp;Jia Huang ,&nbsp;Mei Wang ,&nbsp;Sashuang Rong ,&nbsp;Huiwei Zhao ,&nbsp;Shiming Su ,&nbsp;Wei Liu","doi":"10.1016/j.eti.2025.104385","DOIUrl":"10.1016/j.eti.2025.104385","url":null,"abstract":"<div><div>Microplastics (MPs) accumulation is a growing concern and poses potential risks to cultivated vegetables. An accurate assessment of the risks associated with microplastics on seedling germination and growth is essential, particularly considering factors such as concentration, species, and particle size. Therefore, a cultivation experiment was conducted to investigate the risks of MPs on pepper with varying concentrations and particle sizes of polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET). Our results indicated that germination of pepper seeds was inhibited in most cases, with the inhibition ranging from 6.28 % to 15.99 %. The addition of PP and PET-MPs resulted in a significant reduction in root weight and length in pepper seedlings. Generally, the growth of pepper seedlings was more significantly affected by PET than by PE or PP. Furthermore, MPs induced oxidative stress in peppers, which varied with particle sizes. The effects of small-size (25 μm) treatments were ranked as PET &gt; PP &gt; PE, and the average values of the integrated biomarker response index (IBRv2) were 4.02, 3.67, and 3.66, respectively. In contrast, the IBRv2 values for the large-size (300 μm) treatments were ranked as PE &gt; PP &gt; PET, with average IBRv2 values of 7.68, 7.36, and 6.86, respectively. This suggests that an increase in particle size of MPs enhances oxidative stress. These findings allowed a more comprehensive assessment of the mechanisms of phytotoxicity of MPs to pepper plants.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"40 ","pages":"Article 104385"},"PeriodicalIF":6.7,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing composite mineral materials for efficient treatment of cotton pulp black liquor","authors":"Yanlei Zhang ,&nbsp;Yi Yang ,&nbsp;Yue Deng ,&nbsp;Hao Zhang ,&nbsp;Shuo Zhang ,&nbsp;Jiaping Wang ,&nbsp;Chaoqun Chen ,&nbsp;Hongbo Ling","doi":"10.1016/j.eti.2025.104396","DOIUrl":"10.1016/j.eti.2025.104396","url":null,"abstract":"<div><div>Cotton pulp black liquor (CPBL), a challenging pollutant from cotton linter pulping, exhibits high chroma, alkaline pH, and low biodegradability, rendering conventional treatment methods inefficient and costly. In this study an optimized composite mineral adsorbent (OCMA) was developed using natural minerals, which enhanced its capacity to remove chemical oxygen demand (COD), ammonia nitrogen, and chroma through compositional optimization. Experimental results showed the maximum removal efficiency of 96 % for decolorization, 93 % for COD reduction, and for 80 % ammonia nitrogen elimination under optimal conditions (3:1 adsorbent ratio, 0.8 g/L dosage, 25 °C, pH 7). A comprehensive characterization via SEM, BET, FTIR, and XRD analyses revealed the structural and mechanistic basis for the enhanced performance of OCMA. The innovative mineral composite design overcomes traditional process limitations, providing an efficient and eco-friendly solution for recalcitrant wastewater treatment. This work demonstrates significant potential for environmental remediation and sustainable resource utilization, highlighting its simple operation, cost-effectiveness, and high treatment efficiency in addressing the critical challenges in industrial wastewater management.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"40 ","pages":"Article 104396"},"PeriodicalIF":6.7,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144685634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Decoupling the effects of organic acid and EPS in phosphorus activation by phosphate solubilizing bacteria: From screening to morphological transformation analysis","authors":"Banglin Luo ,&nbsp;Fang Liu ,&nbsp;Rongxian Yang ,&nbsp;Wanyu Li ,&nbsp;Anqi Xu ,&nbsp;Qiu Huang ,&nbsp;Rui Wu ,&nbsp;Yin Yi ,&nbsp;Shouqin Zhong ,&nbsp;Fanxin Qin ,&nbsp;Chaofu Wei","doi":"10.1016/j.eti.2025.104389","DOIUrl":"10.1016/j.eti.2025.104389","url":null,"abstract":"<div><div>Phosphate-solubilizing bacteria (PSB) are crucial functional microorganisms that enhance phosphorus bioavailability and regulate phosphorus cycling. However, some knowledge gaps remain regarding: the relative effectiveness of PSB-secreted organic acids (individual vs. combined) in dissolving calcium phosphate, and the underlying mechanisms of phosphorus release and mineral transformation mediated by PSB metabolites (organic acids and EPS). This study investigated the dissolution effects of mono-, di-, and tri-carboxylic acids and their mixtures secreted by high-efficiency PSB on calcium phosphate through strain screening and laboratory incubation experiments. Comprehensive characterization techniques including SEM-EDS, FTIR, XRD, and XPS were employed to analyze morphological and mineralogical changes during dissolution. The results showed that from 22 isolated PSBs, four top performers (<em>Burkholderia</em> and <em>Acinetobacter</em> spp.) achieved 538.34 mg/L phosphorus solubilization via oxalic, malic, and gluconic acids secretion. Abiotic experiments showed all individual organic acids increased phosphorus release versus control, with formic acid being most effective. Mixed-acid systems showed intermediate performance between lactic and formic acids. A significantly positive correlation (<em>r</em> = 0.710, <em>p</em> = 0.014) was observed between the mass fraction ratio of carboxyl groups to organic acids and supernatant phosphorus levels, establishing this ratio as a practical predictive indicator for evaluating carboxylic acids' calcium phosphate dissolution capacity. XRD analysis revealed transformation of precipitates into calcium phosphate-hydroxyapatite (Ca-P-HAP) mixtures after 7-day incubation, regardless of PSB presence. Organic acids promote dissolution by acidification and chelation, while EPS hinders this process by adsorbing phosphorus, inducing precipitation, and encapsulating crystals. PSB-mediated dissolution-recrystallization processes, facilitated by organic acid secretion and EPS, generated orthophosphate minerals with distinct particle sizes and morphologies (granular, flaky, and hexagonal prism structures). These findings enhance our understanding of PSB-mediated morphological evolution and mineral transformation in calcium orthophosphates, offering a theoretical foundation for optimizing phosphorus management in agricultural systems.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"40 ","pages":"Article 104389"},"PeriodicalIF":6.7,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cladosporium species detoxify multiple water micropollutants of emerging concern","authors":"Maria Louise Leth ,&nbsp;Kai Tang ,&nbsp;Trine Sørensen ,&nbsp;Simone Turella ,&nbsp;Aaron John Andersen ,&nbsp;Claus Hélix-Nielsen ,&nbsp;Jens Christian Frisvad ,&nbsp;Teis Esben Søndergaard ,&nbsp;Henrik Rasmus Andersen ,&nbsp;Maher Abou Hachem","doi":"10.1016/j.eti.2025.104379","DOIUrl":"10.1016/j.eti.2025.104379","url":null,"abstract":"<div><div>The accumulation of micropollutants of emerging concern in aqueous ecological niches raises safety concerns regarding biological systems and human health. Mycoremediation is a promising and green strategy to mitigate the micropollutant challenge. Hitherto, micropollutant transformation by white-rot Basidiomycota species has received most attention, whereas the potential of ascomycetes with respect to removal of micropollutants remains underexplored. Here, we assayed 53 Ascomycota isolates from 10 genera for the removal of 22 micropollutants, spanning large chemical diversity including mono- and multi-aromatic rings as well as different polarities, charge and halogen substitution. Functionally, the micropollutants included analgesic, antibiotics, antidepressant, anti-inflammatory, blood pressure regulating, and lipid-lowering drugs as well as anticorrosion agents, a herbicide, and an X-ray contrast agent. Notably, 9 out of the 22 micropollutants were removed from fungal culture supernatant at efficiencies &gt; 45 %. Temporal analysis of the nine top-performing strains, highlighted a remarkable potency of the <em>Cladosporium</em> isolates in removal of multiple micropollutants. Importantly, <em>Cladosporium</em> species considerably reduced the toxicity of a cocktail of six micropollutants, based on growth assays. Metabolite network analyses identified different levels of oxidation and methylation biotransformation products for distinct micropollutants, whereas no products could be identified for other micropollutants, such as ciprofloxacin, sulfamethoxazole, and sertraline, hinting more extensive transformations. Genome sequencing and proteomic analyses were consistent with the observed transformations and tentatively identified the molecular apparatus, conferring micropollutant transformation. This study brings novel insight into the micropollutant transformation and detoxification capabilities of ecologically prevalent <em>Cladosporium</em> species, thereby revealing a considerable, albeit hitherto underappreciated potential of ascomycetes in micropollutant transformation.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"40 ","pages":"Article 104379"},"PeriodicalIF":6.7,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Information-gain based project prioritization and q-learning molecular fuzzy ranking for energy positive building investments","authors":"Gang Kou ,&nbsp;Hasan Dinçer ,&nbsp;Yaşar Gökalp ,&nbsp;Serhat Yüksel ,&nbsp;Serkan Eti ,&nbsp;Ümit Hacıoğlu","doi":"10.1016/j.eti.2025.104378","DOIUrl":"10.1016/j.eti.2025.104378","url":null,"abstract":"<div><div>Energy-positive buildings have gained significant attention as a sustainable solution to the growing global energy crisis. However, the efficient allocation of limited resources remains major challenges for optimizing these investments. There is a need for a new priority analysis for these factors. This article aims to determine the appropriate investment strategies regarding energy positive building projects via a novel model. The relevant project factors are detected using the information gain-based attribute selection in the first stage. The balanced evaluation matrices are created by q-learning in the following section. The weights of performance indicators are computed by molecular fuzzy cognitive maps. Moreover, project alternatives for energy positive building investments are examined via molecular fuzzy multi-objective particle swarm optimization. The main contribution of this study to the literature is that prior investment strategies for the improvements of the energy positive building projects can be identified with the help of a novel decision-making model. The main superiority of the proposed methodology is calculation of the importance weights of the experts. The results illustrate that the information gain method reduces the initial eight project alternatives to five, with the highest information gain values (0.750 for energy production potential and 1.000 for the use of high-performance materials) highlighting the most influential factors. The q-learning algorithm balances expert evaluations, achieving convergence with a tolerance of 0.02, ensuring stability in decision matrices. The MF cognitive maps assign weights to criteria, with the use of high-performance materials (weight: 0.256) and technological infrastructure (weight: 0.253) emerging as the most critical. The MF-MOPSO ranking results show consistent performance across five molecular geometry shapes, with the vertical urban farming tower (average score: 0.1562) and net-positive educational campus (average score: 0.1560) as the top alternatives. The model’s superiority is further validated through comparative analysis with the ARAS method, confirming robustness against weight variations (1–2 % changes). These results provide actionable insights for policymakers and investors to allocate resources effectively, emphasizing high-performance materials and technological advancements as key drivers for energy-positive building investments.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"40 ","pages":"Article 104378"},"PeriodicalIF":6.7,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of biochar-loaded green synthetic iron nanocomposite and passivation mechanism of cadmium in pig manure aerobic composting","authors":"Wenqing Yang ,&nbsp;Yuanping Zhong ,&nbsp;Zeyang Lu ,&nbsp;Daifeng Lin ,&nbsp;Qian Zhuo ,&nbsp;Haifang Zeng ,&nbsp;Deming Yang ,&nbsp;Zuliang Chen","doi":"10.1016/j.eti.2025.104377","DOIUrl":"10.1016/j.eti.2025.104377","url":null,"abstract":"<div><div>Heavy metal contamination, especially cadmium (Cd), in pig manure poses significant environmental challenges to agriculture. This study utilized pig manure as a raw material for biochar production and employed tea tree waste leaf extract to reduce iron ions, synthesizing biochar-loaded green synthetic iron nanoparticles (PBC@G-nFe). The PBC@G-nFe was then applied in the composting of pig manure to investigate its effects on the morphological changes of cadmium during the composting process, providing a sustainable solution. The results demonstrated that PBC@G-nFe significantly enhanced composting efficiency. At the optimal 5 % addition rate, the residual cadmium content increased by 31.91 %, and its bioavailability decreased by 57.65 %. This method promoted heavy metal passivation through the formation of metal phosphate precipitates, offering a feasible solution for the safe use of agricultural waste. Future research should focus on optimizing the cost-effectiveness and scalability of this method, while evaluating its long-term impact on soil health and crop growth.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"40 ","pages":"Article 104377"},"PeriodicalIF":6.7,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}