Journal of water process engineering最新文献

{"title":"Mechanistic insight into the aqueous transformation of sartans by ozonation and the Fe(II)/peroxymonosulfate system","authors":"Linke Jiang ,&nbsp;Ruiqi Wang ,&nbsp;Shuiqin Shi ,&nbsp;Junmei Yan ,&nbsp;Mingbao Feng ,&nbsp;Lianbao Chi","doi":"10.1016/j.jwpe.2024.106367","DOIUrl":"10.1016/j.jwpe.2024.106367","url":null,"abstract":"<div><div>With the aging of the global population and continued economic development, the use of sartan-type antihypertensive drugs (e.g., losartan (LOS), telmisartan (TEL), and valsartan (VAL)) has increased with widespread contamination issues. However, the effect of advanced oxidation processes (AOPs) on the degradation of sartans remains unknown. Therefore, AOPs such as the Fe(II)/peroxymonosulfate (PMS) system and ozonation were used to treat the typical sartans, which led to the formation of various transformation products (TPs). This research involves the formation mechanisms of these TPs following AOPs including aldolization, hydroxylation, ring cleavage, carbonylation and cyclization. The risk evaluation focused on the biodegradability and toxicity of the drugs and their TPs, assessed using computerized toxicity prediction software. The findings indicated that the biodegradability of most TPs was generally poor and most TPs exhibited acute/chronic toxicity. This underscores the need for caution when applying AOPs in water treatment to prevent secondary contamination and suggests the potential necessity of integrating AOPs with complementary purification technologies. This research provides novel insights into the degradation pathways and environmental risks of sartans, emphasizing the importance of a holistic approach to water treatment.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"68 ","pages":"Article 106367"},"PeriodicalIF":6.3,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic effect of reinforced cellulose nanofibrils/polyethylene glycol embedded particles in ammonia nitrogen wastewater: An in-depth microbial denitrification analysis","authors":"Dongxu Zhou ,&nbsp;Salma Tabassum ,&nbsp;Jun Li ,&nbsp;Huseyin Altundag","doi":"10.1016/j.jwpe.2024.106336","DOIUrl":"10.1016/j.jwpe.2024.106336","url":null,"abstract":"<div><div>The encapsulation and immobilization technology provide a good growth environment for bacteria, strong protection ability, improved survival rate, and resistance to adverse environmental factors. Cellulose nanofibrils (CNF) with polyhydroxyl structure improve the elasticity, tensile properties, mechanical strength and gel strength of embedded particles through non-covalent forces. Polyethylene glycol (PEG) is a water-soluble polymer with unique carbon‑oxygen chain as the core skeleton. The ether bonds present in each unit give PEG extremely strong hydrophilicity and solubility. CNF and PEG to reinforce SA (sodium alginate) and PVA (polyvinyl alcohol)-SA embedded particle were adopted to treat ammonia nitrogen wastewater. The ammonia diffusion coefficients and oxygen diffusion coefficients of the CNF/PEG/SA and CNF/PEG/PVA-SA were 0.454 × 10⁻⁹, 0.286 × 10⁻⁹, 0.672 × 10⁻⁹ and 0.493 × 10⁻⁹ m²/s, respectively. The physicochemical properties of embedded particles were characterized by mass transfer characterization, SEM, XRD, FTIR, and BET analysis. The specific surface areas of CNF/PEG/SA and CNF/PEG/PVA-SA increased to 2.583 m²/g and 3.962 m²/g, respectively. The removal efficiency of NH₄⁺-N, COD and TN in the CNF/PEG/PVA-SA system was 90 %, 74 % and 80 % at 30 °C. By HRT 8 h, the removal efficiency of NH₄⁺-N, chemical oxygen demand (COD)and total nitrogen (TN) by the reinforced system was 94.35 %, 63.07 % and 73.84 %, respectively. The neutral to weakly alkaline pH range showed the highest removal efficiencies of NH₄⁺-N, COD, and TN, at 88.51 %, 74.95 %, and 77.56 %, respectively. The half-saturation constant K was 82.98 mg/L, and the maximum ammonia oxidation rate (V_max) was 358.92 mgN/(L-particles-h). The reinforced system showed zero-order reaction kinetics. Nonlinear fitting of each initial NH₄⁺-N concentration and ammonia oxidation rate was carried out using the Michaelis-Menten equation. In reinforced embedded particles, microbial genomic data (KEGG; MetaCyc database annotation) analysis was conducted. The reinforced system demonstrated enhanced strength, specific surface area, mass transfer properties, resistance to adverse external environmental factors, and microbial survival rate for the effective treatment of NH₄⁺-N wastewater.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"68 ","pages":"Article 106336"},"PeriodicalIF":6.3,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142526876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Constructing a heterogenous catalyst β-FeOOH@ZnO for effective sulfadimethoxine elimination with peroxymonosulfate activation: Non-radical dominance","authors":"Yulin Yuan ,&nbsp;Qiongfang Wang ,&nbsp;Xin Zhang ,&nbsp;Lei Dong ,&nbsp;Cheng Peng ,&nbsp;Min Zhang ,&nbsp;Pinhua Rao ,&nbsp;Naiyun Gao ,&nbsp;Jing Deng","doi":"10.1016/j.jwpe.2024.106340","DOIUrl":"10.1016/j.jwpe.2024.106340","url":null,"abstract":"<div><div>The residues of sulfonamide antibiotics in the environment would pose a threat to aquatic ecosystem and human health. In this study, β-FeOOH@ZnO was synthesized by using a hydrothermal method to activate peroxymonosulfate (PMS) for the degradation of the typical sulfonamide antibiotic sulfadimethoxine (SDM), in which 98.89 % of SDM was removed in 60 min with activating 0.5 mM PMS. Moreover, the influence of catalyst dosage, PMS dosage, solution pH and anions on the degradation efficiency of SDM was investigated in the system. The results indicated that the material exhibited good applicability and β-FeOOH@ZnO performed well in a wide pH range (5–11). <span><math><msup><mspace></mspace><mn>1</mn></msup><msub><mi>O</mi><mn>2</mn></msub></math></span> was the major reactive oxygen species (ROS) rather than <span><math><mo>˙</mo><mi>OH</mi></math></span>, <span><math><mi>S</mi><msubsup><mi>O</mi><mn>4</mn><mrow><mo>˙</mo><mo>−</mo></mrow></msubsup></math></span> and <span><math><msubsup><mi>O</mi><mn>2</mn><mrow><mo>˙</mo><mo>−</mo></mrow></msubsup></math></span> through free radical quenching experiments and electron paramagnetic resonance experiments (EPR). Furthermore, the mechanism was found that ZnO could enhance the electron transfer pathway of β-FeOOH, which accelerated the degradation of SDM. Possible intermediate products and degradation pathways were proposed through LC-MS analysis. In summary, this study offered a new strategy for the efficient degradation of sulfonamide antibiotics in water treatment.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"68 ","pages":"Article 106340"},"PeriodicalIF":6.3,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142445023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced adsorption and photodegradation of rhodamine B by BiFeO3 nanoparticles functionalized yeast composite: Synthesis, performance, and mechanism","authors":"Wei Zhang ,&nbsp;Lingling Wen ,&nbsp;Wei Wang ,&nbsp;Wenjun Xiang ,&nbsp;Chuan Lai","doi":"10.1016/j.jwpe.2024.106296","DOIUrl":"10.1016/j.jwpe.2024.106296","url":null,"abstract":"<div><div>Dye contaminants from textile and printing industries can cause severe water pollution. Low cost, high removal efficiency, and good regeneration properties are thus highly required for the employed adsorbents in the water treatment process. In this work, for the first time, we report the fabrication of BiFeO₃ nanoparticles functionalized commercial baker's yeast (BiFeO₃–yeast) as one of the effective biological adsorbents with excellent photocatalytic regeneration activity for rhodamine B (Rhd B) removal in static batch and dynamic column two conditions. The successful synthesis of composited BiFeO₃–yeast was characterized by different instruments including SEM, EDS, XRD, TGA, FT-IR, and XPS. Effects of various adsorption conditions, such as adsorption time, environmental temperature, and initial Rhd B concentration were evaluated thoroughly. The BiFeO₃–yeast composite displays a higher Rhd B adsorption capacity (59.42 mg/g) than unmodified yeast (20.47 mg/g), and its monolayer adsorption process has mainly attributed to the combination of physical and chemical interactions. It is also shown that BiFeO₃–yeast possesses good adsorption-photodegradation and recyclability under visible light (&lt;20 % of adsorption capacity lost after four adsorption-desorption cycles). FT-IR and XPS analysis combined with adsorption-photodegradation tests demonstrate that generated surface oxygen-containing functional groups in alkaline hydrothermal synthesis conditions and introduced photocatalyst BiFeO₃ nanoparticles synergistically participated in the adsorption-photodegradation of BiFeO₃–yeast composite for Rhd B. The column test further evidence that BiFeO₃–yeast is effective in the removal of Rhd B in flow condition. Overall, results show that the composited BiFeO₃–yeast is promising for dye removal through adsorption-based photodegradation.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"68 ","pages":"Article 106296"},"PeriodicalIF":6.3,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142445022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial profiling of granular sludge and microbial sub-communities in an anammox EGSB reactor under varying upward flow velocities","authors":"Haoqian Shi ,&nbsp;Yijing Zhu ,&nbsp;Wanli Hou ,&nbsp;Jianghua Yu ,&nbsp;Dongxiao Sun ,&nbsp;Zhiqiang Dong","doi":"10.1016/j.jwpe.2024.106358","DOIUrl":"10.1016/j.jwpe.2024.106358","url":null,"abstract":"<div><div>The upward flow velocity significantly influences the spatial characteristics of granular sludge and microbial sub-communities in the anaerobic ammonium oxidation expanded granular sludge bed (anammox-EGSB) reactor. This study examines the spatial characteristics of granular sludge and microbial sub-community distribution at various upward flow velocities by adjusting the reflux rate. Elevated upward flow velocity (12.0 m/h) significantly enhances anammox granular characteristics (color, structure, and particle size) and minimizes spatial variations in particle morphology, extracellular polymeric substances (EPS) (proteins, polysaccharides, humic acids), and microbial sub-community structures. Despite the increase in upward flow velocity reducing anammox potential in the abundant sub-community, it fosters microbial synergy, thus optimizing nitrogen removal potential across each region of the reactor. Additionally, the abundant sub-community primarily contributes to nitrogen cycling and is significantly impacted by fulvic-like organic substances, whereas the rare sub-community mainly maintains microbial system stability. The transient sub-community helps sustain nitrogen balance and facilitates organic matter degradation, thereby stabilizing both rare and abundant sub-communities' structure and function. Furthermore, rare and abundant sub-communities display distinct co-occurrence patterns, with the rare sub-community demonstrating greater taxonomic diversity. These findings contribute to optimizing the parameters of the EGSB reactor in actual operation.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"68 ","pages":"Article 106358"},"PeriodicalIF":6.3,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142445077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption of crystal violet from wastewater using alkaline-modified pomelo peel-derived biochar","authors":"Guanqun Tang ,&nbsp;Huiyin Mo ,&nbsp;Le Gao ,&nbsp;Yidi Chen ,&nbsp;Xu Zhou","doi":"10.1016/j.jwpe.2024.106334","DOIUrl":"10.1016/j.jwpe.2024.106334","url":null,"abstract":"<div><div>The purpose of this study is to investigate the optimal preparation conditions for alkali-modified pomelo peel biochar and to clarify its adsorption process towards crystal violet (CV). The pyrolysis temperature and the alkali-to-carbon ratio of pomelo peel raw materials with varying epidermal layers were evaluated and optimized. Several characterization techniques demonstrated that alkaline modification enhances the adsorption performance of biochar by modifying its pore structure and functional group composition. Notably, the biochar, derived from the outer epidermis of pomelo, modified with an alkali-to-carbon ratio of 2:1 at 900 °C (KC2), exhibited significant adsorption capacity through mechanisms such as pore filling, hydrogen bonding, π-π interactions, electrostatic interactions, and functional groups including C<img>C and C<img>O<img>C. The Freundlich isotherm and the pseudo-second-order kinetic model were determined to be the most appropriate for describing the equilibrium data. Accordingly, KC2 exhibited a maximum adsorption capacity of 805.69 mg/g, which significantly exceeded that of biochar derived from pomelo peel with a basic outer epidermis pyrolyzed at 900 °C (BC-GOP900, 586.7 mg/g). This study ultimately concluded that utilizing pomelo peel biochar, particularly KC2, represents an innovative strategy to address pollution caused by CV while effectively repurposing agricultural waste.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"68 ","pages":"Article 106334"},"PeriodicalIF":6.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploiting RSM and ANN modeling methods to optimize phosphate ions removal using LDH/alginate composite beads","authors":"Safa Nouaa ,&nbsp;Rachid Aziam ,&nbsp;Ridouan Benhiti ,&nbsp;Gabriela Carja ,&nbsp;Mohamed Zerbet ,&nbsp;Mohamed Chiban","doi":"10.1016/j.jwpe.2024.106333","DOIUrl":"10.1016/j.jwpe.2024.106333","url":null,"abstract":"<div><div>In the present work, layered double hydroxide (MgAl) and alginate composite beads (LDH/alginate) were developed and used as low-cost and environmentally friendly adsorbent for phosphate ions removal. The successful incorporation of sodium alginate into the LDH structure was confirmed through SEM analysis. The dried beads exhibited a notably rough surface, which promotes molecular movement and potentially enhances pollutant adsorption. The pH of zero charge point (pH_PZC) of the composite was found to be 7.41. This result implies that negative ions have a tendency to draw positive charges on the adsorbent surface via electrostatic interaction forces when the pH is lower than the pH_PZC. On the other hand, a surface that has a pH higher than pH_PZC mostly has a negative charge. The percentage removal and adsorption capacity were investigated as a function of contact time.</div><div>Experiments were carried out by simultaneously varying three factors, in order to evaluate and compare the predictive capabilities of the response surface methodology (RSM) and the artificial neural network approach (ANN) for the adsorption process. Both methods demonstrated a strong ability to accurately predict the adsorption process. However, the response surface methodology exhibited a lower prediction error compared to the artificial neural network approach.</div><div>The central composite design within response surface methodology (CCD-RSM) was employed to optimize the experimental conditions for the adsorption process. The model, which considers three factors: adsorbent dose (A), initial concentration (B), and contact time (C), proved to be significant. Among these, the quadratic term (B²) had the most substantial impact on the phosphate ion adsorption rate. The analysis yielded an R² value of 0.94, indicating an excellent fit to the data. The findings suggest that increasing contact time and reducing the initial concentration improve phosphate ion removal efficiency, while the adsorbent dose has little to no effect. The Artificial Neural Network (ANN) model effectively predicted the adsorptive remediation of phosphate ions onto LDH/alginate composite beads, achieving a high coefficient of determination (R² = 0.984) between the model outputs and the experimental data. The study highlights the significant potential of LDH/alginate composite beads as a natural adsorbent for the removal of phosphate ions from aqueous solutions. These results underscore the environmental friendliness and efficiency of the adsorbent used for phosphate adsorption.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"68 ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new optimized procedure for circular WasteWater sustainability: Coastal cities supporting agricultural rural communities","authors":"Modesto Pérez-Sánchez ,&nbsp;Francisco-Javier Sánchez-Romero ,&nbsp;Francisco A. Zapata ,&nbsp;Helena M. Ramos","doi":"10.1016/j.jwpe.2024.106351","DOIUrl":"10.1016/j.jwpe.2024.106351","url":null,"abstract":"<div><div>This proposal introduces a novel methodology that addresses the increasing irrigation demands driven by climate change and urban growth. Traditionally water-scarce areas are now facing severe water deficits, while wastewater volumes from treatment plants, often discharged into the sea, contribute to pollution. The proposed hybrid system strategy innovatively reallocates 33 hm³ of water annually to agricultural communities, employing a zero-discharge approach to prevent marine pollution. Evaluated from energetic, environmental, and social perspectives, this methodology shows a remarkable cost-benefit ratio exceeding 12, showing its feasibility. It features technical indicators for optimizing water distribution and regulatory components, applied effectively to 28,424 ha of farmland. This strategy meets 24.1 % of the irrigation needs in these regions while safeguarding coastal areas from degradation. Crucially, it integrates 11.3 GWh of renewable energy annually, underscoring its sustainability and enhancing its replicability for other water-deficient regions.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"68 ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simultaneous treatment and enrichment of total phosphorus from livestock sewage using hydrate technology","authors":"Quang Nhat Tran ,&nbsp;Thao Thanh Thuy Le ,&nbsp;Nguyen Huu Ke ,&nbsp;Hai Son Truong-Lam","doi":"10.1016/j.jwpe.2024.106353","DOIUrl":"10.1016/j.jwpe.2024.106353","url":null,"abstract":"<div><div>The presence of phosphorus in livestock sewage is a key factor that causes eutrophication and the degradation of ecological water quality. Cyclopentane (CP) hydrate-based water treatment technique was utilized for the efficient total removal of phosphorus in effluents. This study assesses the treatment effectiveness and enrichment potential of hydrate technology when applied to real-world samples, specifically livestock wastewater. The treatment process was applied under atmospheric pressure and optimized appropriate conditions comprising the CP-to-sample volume ratio of 1:4, reaction duration of 3 h, and temperature of 2 °C because of the high subcooling and ability to enhance the number of hydrate crystals formed along with water. In addition, various methods, such as vacuum filtration, cold centrifugation, and washing, were employed for the effective and comprehensive removal of phosphorus from water samples with the efficiency exhibited from approximately 30 % to 80 %. The structure and composition of the CPHs formed in wastewater were analyzed via Raman spectroscopy and the phosphorus content was determined according to ISO 6878:2004. After a single-stage hydrate process without pretreatment and posttreatment, the water recovered from the extracted hydrates showed that the phosphorus removal efficiency in livestock sewage was approximately 85 % with a remarkable water recovery above 25 %. The study findings provide insights into the development of hydrate-based treatment technology for the removal of phosphorus and explore opportunities for resource enrichment and recovery from sewage.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"68 ","pages":"Article 106353"},"PeriodicalIF":6.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The removal of tris(2-chloroethyl)phosphate by a composite biosorbent: Preparation, performance and mechanism","authors":"Yiyuan Li ,&nbsp;Hong Huang ,&nbsp;Long Han ,&nbsp;Sixian Guo ,&nbsp;Rongliang Qiu ,&nbsp;Shuona Chen","doi":"10.1016/j.jwpe.2024.106304","DOIUrl":"10.1016/j.jwpe.2024.106304","url":null,"abstract":"<div><div>Organophosphate flame retardants (OPFRs), as one kind of emerging organic pollutants, were discovered in various environment, among which chlorinated OPFRs (Cl-OPFRs) were the most abundant. In this study, a novel composite biosorbent (AC-Y4) was developed by a functional bacterial strain and activated carbon, to remove tris(2-chloroethyl)phosphate (TCEP) that was one of the Cl-OPFRs with high detection rate and biotoxicity in surroundings. The results showed that TCEP of 3 mg/L could be efficiently removed by AC-Y4 with an adsorption capacity of 0.0667 mg/g, of which 87.3 % was degraded. And its adsorption of 5 mg/L TCEP was 0.0997 mg/g, which higher than using the activated carbon or TCEP degrading strain only. The removal process was in accordance with pseudo-second-order kinetic and Langmuir isotherm, indicating that the adsorption of TCEP by this composite biosorbent was chemical adsorption. In addition, pH, and heavy metal ions were proved to play an important role in the TCEP removal, especially during the first 12 h of the reaction. The removal rate of TCEP by the composite adsorbent AC-Y4 was the highest when solution pH = 7. Besides, both Cu²⁺ and Cd²⁺ had less effect on the TCEP removal while Cr⁶⁺ inhibited this process, and the AC-Y4 was found that it could remove TCEP/heavy metals combined pollutants simultaneously. Furthermore, the determination of degradation intermediates and Cl⁻ ions induced that the AC-Y4 not only could efficiently adsorb TCEP but also could decompose it, and the main degradation pathways of TCEP by AC-Y4 were dechlorination and bio-hydrolysis.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"68 ","pages":"Article 106304"},"PeriodicalIF":6.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}