Journal of water process engineering最新文献_第4页

Addition of hydrogen peroxide to natural ferruginous water improves the efficacy of SODIS method against the waterborne pathogen Cryptosporidium 在天然含铁水中加入双氧水，提高了SODIS法对水传病原体隐孢子虫的防治效果

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-29 DOI: 10.1016/j.jwpe.2024.106559

Aurora Reboredo-Fernández , María Jesús Abeledo-Lameiro , Seila Couso-Pérez , María Inmaculada Polo-López , Pilar Fernández-Ibáñez , Elvira Ares-Mazás , Hipólito Gómez-Couso

{"title":"Addition of hydrogen peroxide to natural ferruginous water improves the efficacy of SODIS method against the waterborne pathogen Cryptosporidium","authors":"Aurora Reboredo-Fernández , María Jesús Abeledo-Lameiro , Seila Couso-Pérez , María Inmaculada Polo-López , Pilar Fernández-Ibáñez , Elvira Ares-Mazás , Hipólito Gómez-Couso","doi":"10.1016/j.jwpe.2024.106559","DOIUrl":"10.1016/j.jwpe.2024.106559","url":null,"abstract":"<div><div>The enhancement of SODIS method against the waterborne pathogen <em>Cryptosporidium</em> by incorporating H<sub>2</sub>O<sub>2</sub> in natural ferruginous water (NFW) was evaluated. Polyethylene terephthalate bottles containing distilled water or different NFW with added different concentrations of H<sub>2</sub>O<sub>2</sub> (0–100 mg L<sup>−1</sup>) were spiked with <em>Cryptosporidium parvum</em> oocysts and exposed to simulated and natural solar radiation. Oocyst viability was evaluated by induced excystation and inclusion/exclusion of the vital dye propidium iodide (PI). The experiments performed under sunlight showed better <em>C. parvum</em> inactivation rates than those under simulated solar radiation. Oocyst viability rates of 2.26±1.91% and 16.52±3.83% were determined by induced excystation and inclusion/exclusion of PI, respectively, after exposure to natural sunlight during 6 h in NFW with 100 mg L<sup>−1</sup> of H<sub>2</sub>O<sub>2</sub>. This study proves the enhancement in the effectiveness of conventional SODIS by the addition of H<sub>2</sub>O<sub>2</sub> to natural ferruginous waters, speeding up the <em>C. parvum</em> oocyst inactivation. Since surface waters in countries where the SODIS method can be used often contain dissolved iron salts, the addition of small amounts of H<sub>2</sub>O<sub>2</sub> will increase the microbiological quality of drinking waters and consequently would decrease the risk of diarrhoeal diseases in the population, having a positive impact in terms of development and poverty reduction.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106559"},"PeriodicalIF":6.3,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745474","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}

引用次数: 0

Reinforcement learning optimization of a water resource recovery facility: Evaluating the impact of reward function design on agent training, control optimization, and treatment risk 水资源回收设施的强化学习优化：评估奖励函数设计对智能体训练、控制优化和处理风险的影响

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-29 DOI: 10.1016/j.jwpe.2024.106658

Henry C. Croll , Kaoru Ikuma , Say Kee Ong , Soumik Sarkar

{"title":"Reinforcement learning optimization of a water resource recovery facility: Evaluating the impact of reward function design on agent training, control optimization, and treatment risk","authors":"Henry C. Croll , Kaoru Ikuma , Say Kee Ong , Soumik Sarkar","doi":"10.1016/j.jwpe.2024.106658","DOIUrl":"10.1016/j.jwpe.2024.106658","url":null,"abstract":"<div><div>This study applied reinforcement learning (RL) optimization to the simulation of a water resource recovery facility (WRRF) to evaluate the impact of reward function design under varying effluent requirements. Several mathematical structures were evaluated for the effluent quality index (EQI) portion of the reward function for the case of current treatment requirements. Of these, a fraction-based structure was found to produce the highest level of optimization, as well as the best mix of results along an optimal risk-reward tradeoff line. The study also found that the training success rate could be tuned by changing the weight given to the EQI. Given the simplicity of the current treatment requirements, agents trained for this case showed a very clear risk-reward tradeoff. The most cost-effective agent reduced operational costs by 10.9 % compared to current operation, equivalent to yearly savings of $267,000. RL agents were also evaluated for the case of future treatment requiring nutrient removal. As the future case was more complex than the current case, relative risk was evaluated using a combination of basic indicators such as maximum effluent value and instantaneous limit exceedance, correlation matrixes to uncover state-action relationships, and challenge testing.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106658"},"PeriodicalIF":6.3,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745470","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}

引用次数: 0

Flow regime mechanisms in sequencing batch reactor (SBR) configurations on aerobic granular sludge formation using particle image velocimetry (PIV) 基于颗粒图像测速法（PIV）的顺序间歇反应器（SBR）构型对好氧颗粒污泥形成的流态机制

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-29 DOI: 10.1016/j.jwpe.2024.106612

Nur Ain Hamiruddin , Nik Azimatolakma Awang , Norizham Abdul Razak

{"title":"Flow regime mechanisms in sequencing batch reactor (SBR) configurations on aerobic granular sludge formation using particle image velocimetry (PIV)","authors":"Nur Ain Hamiruddin , Nik Azimatolakma Awang , Norizham Abdul Razak","doi":"10.1016/j.jwpe.2024.106612","DOIUrl":"10.1016/j.jwpe.2024.106612","url":null,"abstract":"<div><div>Indah Water Konsortium (IWK) consistently encounters challenges in managing over 7000 sewage treatment plants (STPs) due to inadequate infrastructure for centralized treatment. In addressing the challenge of land acquisition during STP upgrades, aerobic granular sludge (AGS) technology is worth exploring. The AGS systems are designed in sequencing batch reactors (SBRs) as a superior alternative to reduce land requirements. Research trends on AGS formation by flow regime mechanism are not yet fully comprehended for different SBR configurations (column and rectangular-type) as sufficient adjusted aeration rates in producing high-quality effluent. In this study, mature AGS of about 2736 μm was achieved at 57 days of formation in rectangular-type SBR by laminar flow with an aeration rate of 4 L/min. Due to transitional flow dynamics, there was a delay of about 54 % of mature AGS (2505 μm) on day 88 in column-type SBR at an aeration rate of 6 L/min. Microbial growth indicated that effective mixing was essential in wastewater treatment to ensure uniform distribution of oxygen, nutrients, and microorganisms, while excessive agitation must be avoided to maintain granular integrity. Thus, this research offers insights into the novelty of AGS for full-scale application.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106612"},"PeriodicalIF":6.3,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745577","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}

引用次数: 0

Competitive and synergistic effects of biochar modified with phosphoric acid and manganese oxide on the removal of Cd and Congo red from wastewater 磷酸和氧化锰改性生物炭去除废水中镉和刚果红的竞争和协同效应

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-29 DOI: 10.1016/j.jwpe.2024.106675

Jing Qian , Qingsong Cai , Tao Zheng , Jizi Wu , Fuwei Sun , Rui He , Muhammad Aqeel Kamran , Jing Zhan , Xianhuai Huang

{"title":"Competitive and synergistic effects of biochar modified with phosphoric acid and manganese oxide on the removal of Cd and Congo red from wastewater","authors":"Jing Qian , Qingsong Cai , Tao Zheng , Jizi Wu , Fuwei Sun , Rui He , Muhammad Aqeel Kamran , Jing Zhan , Xianhuai Huang","doi":"10.1016/j.jwpe.2024.106675","DOIUrl":"10.1016/j.jwpe.2024.106675","url":null,"abstract":"<div><div>In this study, a composite-modified sludge-based biochar (Mn-P-SBC) was synthesized from municipal sludge using phosphoric acid and manganese oxides, and its effectiveness for adsorbing co-pollutants Congo red (CR) and cadmium (Cd) from wastewater was evaluated. Characterization confirmed successful integration of phosphoric acid and manganese oxide modifications, with notable improvements in pore structure and surface functional groups, facilitating Cd(II) and CR adsorption. Experimental results demonstrated that Mn-P-SBC had substantial adsorption capacity across a pH range of 3–12, achieving maximum capacities of 128.4 mg g<sup>−1</sup> for CR and 26.3 mg g<sup>−1</sup> for Cd(II), as determined by isothermal adsorption models. In a co-adsorption system, competitive effects were observed at low pollutant concentrations; however, at higher CR or Cd(II) concentrations, the material's adsorption capacity for the other pollutant increased, indicating a synergistic effect. This enhanced adsorption is likely due to electrostatic interactions, A-type ternary surface complex formation, and surface precipitation. This study presents an innovative approach for the simultaneous treatment of CR and Cd(II) in contaminated water.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106675"},"PeriodicalIF":6.3,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745473","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}

引用次数: 0

Natural zeolite/PVC beads for the removal of ammonium ions from water: Wettability, particle size, strength, hydrophilicity and equilibrium behaviour 用于从水中去除铵离子的天然沸石/PVC珠：润湿性，粒径，强度，亲水性和平衡行为

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-29 DOI: 10.1016/j.jwpe.2024.106666

Louis Currie, Dias Hardanti, Graeme J. Millar

{"title":"Natural zeolite/PVC beads for the removal of ammonium ions from water: Wettability, particle size, strength, hydrophilicity and equilibrium behaviour","authors":"Louis Currie, Dias Hardanti, Graeme J. Millar","doi":"10.1016/j.jwpe.2024.106666","DOIUrl":"10.1016/j.jwpe.2024.106666","url":null,"abstract":"<div><div>This study developed an improved method for removing ammonium ions from water using natural zeolite/PVC beads. Research gaps relating to the impact of particle size, wettability, robustness, hydrophobicity and equilibrium behaviour were addressed. It was surmised that manipulation of the formation of natural zeolite/PVC beads will improve the performance of these composite materials. First it was noted that water-saturated sorbents exhibited higher ammonium ion exchange rates than dried beads. An air nozzle was proposed as a potential solution for controlling particle size. To control bead particle size, a range of airflow rates passed through an optimised 3D printed nozzle design. Bead diameters from below 0.5 mm up to 2 mm were obtained, with higher airflow rates promoting the growth of smaller beads. 0.5–1 mm beads also were characterised by lower attrition rates compared to larger ≈ 2.7 mm particles (54 to 57 % change) and had almost the same kinetics exchange rate as their regular unbound zeolite powder counterparts (0.4 to 13.5 % difference). The equilibrium data was in the shape of a linear isotherm, which suggested that the ammonium ions were equally dispersed throughout the sorbent and the aqueous solution. Finally, the use of amphipathic copolymer (Pluronic F127) improved the exchange kinetics of the dry beads (42 to 160 % change) but also weakened the structural integrity of the zeolite composites (284 to 647 % change depending on the analysed composites).</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106666"},"PeriodicalIF":6.3,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745575","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}

引用次数: 0

Incremental machine learning and genetic algorithm for optimization and dynamic aeration control in wastewater treatment plants 基于增量机器学习和遗传算法的污水处理厂曝气优化与动态控制

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-29 DOI: 10.1016/j.jwpe.2024.106600

Celestine Monday , Mohamed S. Zaghloul , Diwakar Krishnamurthy , Gopal Achari

{"title":"Incremental machine learning and genetic algorithm for optimization and dynamic aeration control in wastewater treatment plants","authors":"Celestine Monday , Mohamed S. Zaghloul , Diwakar Krishnamurthy , Gopal Achari","doi":"10.1016/j.jwpe.2024.106600","DOIUrl":"10.1016/j.jwpe.2024.106600","url":null,"abstract":"<div><div>Wastewater treatment plants (WWTPs) play a crucial role in municipal infrastructure, but their energy consumption remains a significant concern. Among the various components of WWTPs, the aeration system in biological reactors stands out as a major contributor to high energy usage. This system accounts for >50 % of the plant's total power consumption, as it ensures the effective removal of organics and nitrogen. Supervisory Control and Data Acquisition (SCADA) systems are commonly employed to monitor dissolved oxygen (DO) concentration and regulate aeration blower to maintain a specific DO setpoint. However, despite the prevalence of SCADA systems, many WWTPs still grapple with challenges such as over-aeration and under-aeration caused by diurnal wastewater loading cycles, resulting in increased energy usage. To address this issue, this research introduces a predictive aeration optimization tool tailored to a full-scale biological nutrient removal WWTP. An incremental learning (IL) model based on K-Nearest Neighbor (KNN) that passively handles changing data patterns is developed to predict air blower flow rates, achieving an R<sup>2</sup> value that exceeds 85 %. This model further serves as an objective function for a Genetic Algorithm (GA) optimization, aimed at minimizing air blower flow rates while ensuring that final effluent properties meet treatment quality limits in compliance with regulatory requirements. The model is trained and validated using online sensor data collected from 2012 to 2022, with measurements taken every 10 min. When placed in a simulated production scenario, the model successfully optimized aeration requirements, achieving a 14 % reduction without compromising effluent quality.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106600"},"PeriodicalIF":6.3,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745457","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}

引用次数: 0

Enhanced degradation of bisphenol A through electroreduction of potassium permanganate activated by periodate 通过高碘酸盐激活的高锰酸钾电还原增强双酚A的降解

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-29 DOI: 10.1016/j.jwpe.2024.106667

Xulong Zhang , Xiaoyan Liu , Shiwei Xie , Xian Liu

{"title":"Enhanced degradation of bisphenol A through electroreduction of potassium permanganate activated by periodate","authors":"Xulong Zhang , Xiaoyan Liu , Shiwei Xie , Xian Liu","doi":"10.1016/j.jwpe.2024.106667","DOIUrl":"10.1016/j.jwpe.2024.106667","url":null,"abstract":"<div><div>This study is first to elucidate the efficacy of electrochemical activation of periodate (PI) by permanganate (PM) in enhancing the degradation of bisphenol A (BPA) over a wide pH spectrum. Utilizing a current density of 4 mA/cm<sup>2</sup>, 200 μM PI, and 20 μM PM, the proposed system achieved a 99.8 % degradation of 40 μM BPA within 30 min and a 65.5 % total organic carbon (TOC) removal in 120 min. The combined system yielded a synergistic coefficient of 15.23 for BPA degradation, and energy efficiency of 0.14 KWh•m<sup>−3</sup>. The exceptional performance is attributed to the reduction of PM to low-valent manganese species at the cathode, which facilitates the activation of PI. Additionally, the system preserved high BPA degradation efficiency across a pH range of 3–11. Radical quenching and electron paramagnetic resonance spectroscopy experiments confirmed the pivotal role of singlet oxygen in the degradation process. Furthermore, the system exhibited relative insensitivity to actual water matrix constituents, including inorganic ions and humic acid. In conclusion, the proposed system constitutes an eco-friendly treatment process for BPA removal characterized by low energy consumption.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106667"},"PeriodicalIF":6.3,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745476","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}

引用次数: 0

Mechanism and effect of magnetic biochar on the removal of norfloxacin from water by ozone peroxidation adsorption-coagulation process 磁性生物炭对臭氧过氧化吸附-混凝法去除水中诺氟沙星的机理及影响

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-29 DOI: 10.1016/j.jwpe.2024.106655

Xinhua Zhou, Lin Lu, Xilin Li, Fankang Meng, Ziqiang Ding, Zhihao Li, Bowen Chen, Jianxin Zhang

{"title":"Mechanism and effect of magnetic biochar on the removal of norfloxacin from water by ozone peroxidation adsorption-coagulation process","authors":"Xinhua Zhou, Lin Lu, Xilin Li, Fankang Meng, Ziqiang Ding, Zhihao Li, Bowen Chen, Jianxin Zhang","doi":"10.1016/j.jwpe.2024.106655","DOIUrl":"10.1016/j.jwpe.2024.106655","url":null,"abstract":"<div><div>Norfloxacin (NOR) is a widely used antibiotic, and its persistent residues in water have become a significant environmental concern. Due to its high concentration and persistence, NOR poses a threat to both the ecological environment and human health. Therefore, the development of effective water treatment technologies for removing NOR from water has become a critical issue. This study developed a novel adsorbent and integrated it with an ozone pre-oxidation-adsorption coagulation process to enhance the removal efficiency of NOR from turbid water. Adsorption experiments were conducted to investigate the effects of various conditions on the removal efficiency of NOR and to explore the underlying removal mechanisms. Additionally, the process parameters in the ozone pre-oxidation-mechanical stirring-clarifier sedimentation system were optimized. The results indicate that when the adsorbent dosage is 1 g/L and the pH is 7, the removal efficiency of NOR reaches 92.1 %. The primary adsorption mechanisms involved include hydrogen bonding, cation exchange, electrostatic attraction, intercalation, π-π interactions, and oxidation. Additionally, under conditions of 1 g/L adsorbent dosage, a 60-min reaction time, 20 mg/L PAC dosage, and a 0.1 m<sup>3</sup>/h ozone flow rate, the removal efficiencies of NOR and turbidity were 88.69 % and 81.55 %, respectively. In conclusion, the combination of ozone pre-oxidation and adsorption-coagulation technology proves to be an effective method for treating high-concentration antibiotic wastewater.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106655"},"PeriodicalIF":6.3,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745475","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}

引用次数: 0

In situ synthesis of a photocatalyst using TiO2 QDs-immobilized functionalized galactomannan for degradation of organic pollutant 二氧化钛qds固定化半乳甘露聚糖原位合成降解有机污染物光催化剂

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-29 DOI: 10.1016/j.jwpe.2024.106617

Padmapani Pradhan , Shaon Dey , Kalipada Manna , Asit Baran Panda , Sagar Pal

{"title":"In situ synthesis of a photocatalyst using TiO2 QDs-immobilized functionalized galactomannan for degradation of organic pollutant","authors":"Padmapani Pradhan , Shaon Dey , Kalipada Manna , Asit Baran Panda , Sagar Pal","doi":"10.1016/j.jwpe.2024.106617","DOIUrl":"10.1016/j.jwpe.2024.106617","url":null,"abstract":"<div><div>TiO<sub>2</sub> based photocatalysts are highly efficient systems in degrading organic contaminants. In the present work, an <em>in-situ</em> approach has been adopted to synthesize TiO<sub>2</sub> quantum dots (QDs) with simultaneous grafting of methacrylic acid (MAc) on guar gum (GG), to develop a hybrid composite (GG-g-PMAc-@-TiO<sub>2</sub> QDs) for photocatalytic degradation of toxic organic contaminant. The <em>in-situ</em> synthesis and proper dispersion of TiO<sub>2</sub> QDs over polymer surface is aided by the stabilization through electrostatic interaction and hydrogen bonding between the acid functionality of the grafted PMAc chains and TiO<sub>2</sub> QDs. The structural and morphological properties of GG-g-PMAc-@-TiO<sub>2</sub> QDs have been thoroughly investigated by various characterization techniques. The HR-TEM analysis reveals the average particle size of TiO<sub>2</sub> QDs is ∼3.9 nm. The optical properties of the composite have been studied by UV, PL and TCSPC analyses. Moreover, the developed nanohybrid GG-g-PMAc-@-TiO<sub>2</sub> QDs photocatalytically degrades ciprofloxacin (CIP) efficiently (∼94 % degraded within 3 h). The HR-MS analysis predicts the various degraded CIP fragments that have further been used to establish probable degradation mechanism.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106617"},"PeriodicalIF":6.3,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745478","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}

引用次数: 0

Electro-sorption/-desorption with bio-sourced granular activated carbon electrode for phenols recovery and combination with advanced electro-oxidation for residual olive mill wastewater treatment 生物源颗粒活性炭电极电吸附/解吸法回收酚类物质，并结合深度电氧化法处理橄榄磨残废水

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2024-11-29 DOI: 10.1016/j.jwpe.2024.106663

Amina Lissaneddine , Marie-Noëlle Pons , Faissal Aziz , Naaila Ouazzani , Laila Mandi , Emmanuel Mousset

{"title":"Electro-sorption/-desorption with bio-sourced granular activated carbon electrode for phenols recovery and combination with advanced electro-oxidation for residual olive mill wastewater treatment","authors":"Amina Lissaneddine , Marie-Noëlle Pons , Faissal Aziz , Naaila Ouazzani , Laila Mandi , Emmanuel Mousset","doi":"10.1016/j.jwpe.2024.106663","DOIUrl":"10.1016/j.jwpe.2024.106663","url":null,"abstract":"<div><div>To face the releasing of hazardous solid and liquid wastes into the environment from the olive oil production industry, it is newly proposed a circular economy approach by implementing electro-sorption of value-added phenolic compounds (PCs) followed by electro-desorption using a bio-sourced granular activated carbon (GAC) electrode made of olive pomace waste. The remaining organic compounds present in the real olive mill wastewater (OMWW) were treated by advanced electrooxidation.</div><div>The PCs electro-sorption study highlighted efficiency around 72 % in synthetic matrix against 68 % in real effluents, whose electro-sorption capacities could be partly attributed to the high electroactive surface area (7.8 × 10<sup>3</sup> cm<sup>2</sup>), high exchange current intensity (<em>I</em><sub>0</sub>) value (5.5 × 10<sup>−3</sup> A), and low charge transfer resistance (<em>R</em><sub>CT</sub>) value (4 Ω) compared to the literature. The study further emphasized the fact that the electro-sorption selectivity was not only dependent on pKa of PCs with respect to solution pH, but also on the size of adsorbed molecules relative to the pore size distribution of GAC. The maximal percentage of PCs recovered from GAC after electro-desorption experiments was 34.5 %, while the global chemical oxygen demand (COD) removal efficiency was 92 % of the pre-filtered real effluent at the cost of scaling during advanced electrooxidation of residual OMWW.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"69 ","pages":"Article 106663"},"PeriodicalIF":6.3,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745574","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}

引用次数: 0