Process Safety and Environmental Protection最新文献

筛选
英文 中文
Adaptive noise cancellation based on CEEMDAN-LMS for pipeline leak location under low SNR 基于CEEMDAN-LMS的低信噪比管道泄漏定位自适应降噪方法
IF 7.8 2区 环境科学与生态学
Process Safety and Environmental Protection Pub Date : 2025-07-29 DOI: 10.1016/j.psep.2025.107668
Shuaiyong Li, Qiang Fu, Pei Shen, Zhongfei He
{"title":"Adaptive noise cancellation based on CEEMDAN-LMS for pipeline leak location under low SNR","authors":"Shuaiyong Li,&nbsp;Qiang Fu,&nbsp;Pei Shen,&nbsp;Zhongfei He","doi":"10.1016/j.psep.2025.107668","DOIUrl":"10.1016/j.psep.2025.107668","url":null,"abstract":"<div><div>To reduce leak localization errors caused by background noise interference, an adaptive noise cancellation method based on the combination of complete ensemble empirical mode decomposition with adaptive noise and LMS filter (CEEMDAN-LMS) is proposed for pipeline leak location. First, the CEEMDAN is used to decompose the detection signal into several intrinsic mode functions (IMFs). To improve the algorithm’s adaptability and accuracy under low signal-to-noise ratio (SNR) conditions, an IMF selection strategy based on the cross-correlation (CC) function between each IMF and another detection signal is proposed. According to this strategy, the IMFs are classified into signal components and noise components. The signal components are then further denoised using an LMS filter. The quality of the reference noise in the LMS filter determines the filtering effectiveness. To obtain high-quality reference noise, this paper proposes a novel reference noise generation method, where selected noise components are summed and then decomposed again using CEEMDAN to create the reference noise. This reference noise is extracted from the original signal, highly correlated with the noise in the original signal, and has a narrow frequency band, which effectively improves the filtering performance. Finally, the filtered signal components are recombined to reconstruct the denoised signal. The time delay of the denoised signal is estimated using the CC function to pinpoint the leak location. In the simulation, two detection signals with initial SNRs of −18 dB were processed by CEEMDAN, resulting in improvements of 9.54 dB and 9.09 dB, respectively. After further processing with the LMS filter, the improvements were 1.9 dB and 1.97 dB, respectively. In real experiments, the localization error using direct CC of the unprocessed signal was 10.85 %, while the error after CEEMDAN-LMS processing was reduced to 2.99 %, showing a significant improvement in localization accuracy.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"202 ","pages":"Article 107668"},"PeriodicalIF":7.8,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144738725","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}
引用次数: 0
Exploring the potential of graphene-based catalysts for biodiesel production: A comprehensive review of mechanisms, synthesis, promotion, performance, product quality, and environmental sustainability 探索石墨烯基催化剂在生物柴油生产中的潜力:机理、合成、推广、性能、产品质量和环境可持续性的综合综述
IF 7.8 2区 环境科学与生态学
Process Safety and Environmental Protection Pub Date : 2025-07-29 DOI: 10.1016/j.psep.2025.107663
Ensie Bekhradinassab , Iman Ghasemi , Saleheh Abbaspoor
{"title":"Exploring the potential of graphene-based catalysts for biodiesel production: A comprehensive review of mechanisms, synthesis, promotion, performance, product quality, and environmental sustainability","authors":"Ensie Bekhradinassab ,&nbsp;Iman Ghasemi ,&nbsp;Saleheh Abbaspoor","doi":"10.1016/j.psep.2025.107663","DOIUrl":"10.1016/j.psep.2025.107663","url":null,"abstract":"<div><div>As the demand for sustainable energy sources grows, there is a need for more efficient and effective biodiesel production processes. Graphene-based materials have emerged as capable and modifiable catalysts due to their unique features, including high surface area and catalytic activity. This review explored the promoted graphene materials, comprising reduced graphene oxide, metal oxide-supported graphene, functionalized graphene, and graphene-based composites, that render them excellent catalysts for the esterification and transesterification reactions. An overview of the reaction mechanisms of different graphene-based catalysts, including acidic, basic, and bi-functional catalysts, is presented. This review exhibits the crucial effect of reaction conditions, including catalyst loadings, temperature, alcohol to oil mole proportion, time, and stirring speed, on the performance of graphene-based catalysts. Crucially, the produced biodiesel consistently meets international quality standards for thermophysical properties and offers significant environmental advantages over petroleum diesel. Ultimately, the advancements in graphene-based catalysis for biodiesel production, as reviewed herein, significantly contribute to the ongoing global efforts toward more efficient and sustainable energy solutions. This exciting and dynamic field possesses perfect potential for future researchers.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"202 ","pages":"Article 107663"},"PeriodicalIF":7.8,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144738714","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}
引用次数: 0
Effective production of branched-chain biodiesel by the hydrolysis-esterification of castor oil using porous carbon-based solid acid 利用多孔碳基固体酸水解-酯化蓖麻油有效生产支链生物柴油
IF 7.8 2区 环境科学与生态学
Process Safety and Environmental Protection Pub Date : 2025-07-26 DOI: 10.1016/j.psep.2025.107658
Chong Lu , Youlian Zhu , Yansheng Wang , Linye Zhang , Yi Zhu , Guangtao Wei
{"title":"Effective production of branched-chain biodiesel by the hydrolysis-esterification of castor oil using porous carbon-based solid acid","authors":"Chong Lu ,&nbsp;Youlian Zhu ,&nbsp;Yansheng Wang ,&nbsp;Linye Zhang ,&nbsp;Yi Zhu ,&nbsp;Guangtao Wei","doi":"10.1016/j.psep.2025.107658","DOIUrl":"10.1016/j.psep.2025.107658","url":null,"abstract":"<div><div>Using Chinese fir sawdust as a carbon source, a porous carbon-based solid acid was successfully developed and utilized for the hydrolysis-esterification of castor oil to produce branched-chain biodiesel. A series of characterizations proved that the CPS-400–2 possessed a large specific surface area (1129.86 m<sup>2</sup>/g), high total acid density (5.03 mmol/g) and abundant -SO<sub>3</sub>H density (1.68 mmol/g). The hydrolysis yield of castor oil reached 85.5 % under the conditions of hydrolysis temperature 160 °C, hydrolysis time 3 h, water/oil mass ratio 2:1, and catalyst dosage 6 wt%. Subsequent esterification of the resulting ricinoleic acid with isopropanol (molar ratio 18:1) at 160 °C for 2.5 h with catalyst dosage 5 wt% achieved 95.1 % esterification ratio. Combined with density functional theory calculations, a potential reaction pathway for the esterification of ricinoleic acid with isopropanol was proposed. And, the environmental assessment revealed that the hydrolysis-esterification process to produce the branched-chain biodiesel was an environmentally friendly technology. Finally, according to the LCC cost analysis results, using CPS-400–2 as the catalyst to product the biodiesel had relatively low cost.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"202 ","pages":"Article 107658"},"PeriodicalIF":7.8,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722632","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}
引用次数: 0
Numerical investigation on explosion limits of NH3/C2H5OH blends: Effects of NH3 cracking and initial components NH3/C2H5OH共混物爆炸极限的数值研究:NH3裂解和初始组分的影响
IF 7.8 2区 环境科学与生态学
Process Safety and Environmental Protection Pub Date : 2025-07-25 DOI: 10.1016/j.psep.2025.107647
Dan Shen, Menglan Miao, Xinyang Tian, Wenchao Zhu, Mingkun Zhang, Xiangyu Meng, Mingshu Bi
{"title":"Numerical investigation on explosion limits of NH3/C2H5OH blends: Effects of NH3 cracking and initial components","authors":"Dan Shen,&nbsp;Menglan Miao,&nbsp;Xinyang Tian,&nbsp;Wenchao Zhu,&nbsp;Mingkun Zhang,&nbsp;Xiangyu Meng,&nbsp;Mingshu Bi","doi":"10.1016/j.psep.2025.107647","DOIUrl":"10.1016/j.psep.2025.107647","url":null,"abstract":"<div><div>In this study, the pressure-temperature explosion limits of NH<sub>3</sub>/C<sub>2</sub>H<sub>5</sub>OH blends were investigated, and the effects of NH<sub>3</sub> cracking and variation in the initial components on the explosion limits of the blends were systematically analyzed. The results showed that the explosion limit pressures of pure C<sub>2</sub>H<sub>5</sub>OH, pure NH<sub>3</sub> and NH<sub>3</sub>/C<sub>2</sub>H<sub>5</sub>OH decrease monotonically with increasing temperature. However, H<sub>2</sub> generated from NH<sub>3</sub> cracking leads the monotonic explosion curve of NH<sub>3</sub>/C<sub>2</sub>H<sub>5</sub>OH blends into a non-monotonic Z-shaped curve, enhancing the explosion risk of the blends. The initial component variations involve the effects of oxidant content and different dilution gases (N<sub>2</sub>, CO<sub>2</sub> and H<sub>2</sub>O). The addition of O<sub>2</sub> extends the explosion region of blends, and the response of explosion limits to O<sub>2</sub> content variations is weaker under medium and high pressures. Sensitivity analysis reveals that variation of O<sub>2</sub> content significantly affects the critical reactions only under low pressure condition. Finally, the effects of N<sub>2</sub>, CO<sub>2</sub> and H<sub>2</sub>O on the explosion limits of NH<sub>3</sub>/C<sub>2</sub>H<sub>5</sub>OH blends were analyzed. Using the virtual gas method to decouple the physical and chemical effects, it was found that all three dilution gases can suppress the explosion through physical effect. However, the chemical effect of H<sub>2</sub>O exerts a greater influence under high pressure, making its suppression effect weaker than that of N<sub>2</sub> and CO<sub>2</sub>. This paper provides important guidance for the development of low/zero-carbon fuels with efficient combustion and high safety.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"202 ","pages":"Article 107647"},"PeriodicalIF":7.8,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722636","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}
引用次数: 0
Comparative study on the performance of typical coagulation-sedimentation and contact flocculation technology in treating high turbidity mine water 典型混凝沉降与接触絮凝工艺处理高浊度矿用水的性能对比研究
IF 6.9 2区 环境科学与生态学
Process Safety and Environmental Protection Pub Date : 2025-07-25 DOI: 10.1016/j.psep.2025.107648
Xiaoqing Kang , Haoyang Xiong , Zunyi Liu , Zhiwei Kang , Kai Zhang , Meiguangzi Guo , Peidong Su
{"title":"Comparative study on the performance of typical coagulation-sedimentation and contact flocculation technology in treating high turbidity mine water","authors":"Xiaoqing Kang ,&nbsp;Haoyang Xiong ,&nbsp;Zunyi Liu ,&nbsp;Zhiwei Kang ,&nbsp;Kai Zhang ,&nbsp;Meiguangzi Guo ,&nbsp;Peidong Su","doi":"10.1016/j.psep.2025.107648","DOIUrl":"10.1016/j.psep.2025.107648","url":null,"abstract":"<div><div>The main purpose of this study was to develop a contact flocculation treatment process for removing turbidity from three types of high turbidity mine water (HTMW), exploring the effects of various flocculants, dosages, filter materials, and filtration rates on turbidity reduction. Four different contact filtration media, named active filter, fiber ball filter, PET foam filter and comet-like filter were used. The results indicate that pretreatment with PAC and PAM can reduce the turbidity of HTMW to&lt; 40TU, and the optimal flocculant dosages for PAC and PAM are 1.92 mg/L and 0.0021 mg/L, respectively. Besides, active filter media proved most effective in stability and turbidity reduction, with a recommended thickness of 43 cm and filtration rate of 40 m/h during the actual tests using HTMW. Under optimal conditions, the actual mine wastewater (MW1, MW2, MW3) was treated, and the effluent quality met the Class III standard for surface water quality in China, achieving a turbidity of &lt; 5 NTU suitable for further treatment.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"201 ","pages":"Article 107648"},"PeriodicalIF":6.9,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704771","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}
引用次数: 0
Enhancing the anti-corrosion performance of steel alloy via surface functionalization with green benzylhydrazineyl imidazolone-based inhibitors: Electrochemical behavior and adsorption mechanism 绿色苄基肼基咪唑酮类缓蚀剂表面功能化提高钢合金的防腐性能:电化学行为及吸附机理
IF 7.8 2区 环境科学与生态学
Process Safety and Environmental Protection Pub Date : 2025-07-24 DOI: 10.1016/j.psep.2025.107629
Walid Ettahiri , Abderrazzak El Moutaouakil Ala Allah , Jamila Lazrak , Mohammed M. Alanazi , Abdelkarim Chaouiki , Zakia Rais , Youssef Ramli , Mustapha Taleb
{"title":"Enhancing the anti-corrosion performance of steel alloy via surface functionalization with green benzylhydrazineyl imidazolone-based inhibitors: Electrochemical behavior and adsorption mechanism","authors":"Walid Ettahiri ,&nbsp;Abderrazzak El Moutaouakil Ala Allah ,&nbsp;Jamila Lazrak ,&nbsp;Mohammed M. Alanazi ,&nbsp;Abdelkarim Chaouiki ,&nbsp;Zakia Rais ,&nbsp;Youssef Ramli ,&nbsp;Mustapha Taleb","doi":"10.1016/j.psep.2025.107629","DOIUrl":"10.1016/j.psep.2025.107629","url":null,"abstract":"<div><div>The pressing need for high-performance, environmentally-friendly corrosion inhibitors has led to the exploration of new organic compounds for the protection of mild steel in aggressive environments. In this study, two recently synthesized benzylhydrazineyl imidazolone derivatives, ClPh-DDI and FPh-DDI, are presented as highly effective corrosion inhibitors for mild steel in 1 M HCl. The electrochemical impedance spectroscopy and potentiodynamic polarization analyses confirmed remarkable inhibition efficiencies of 99.0 % and 99.2 % at 10<sup>−4</sup> M for ClPh-DDI and FPh-DDI, respectively. The adsorption behavior followed the Langmuir isotherm, with ΔG°<sub>ads</sub> values of −50.4 and −54.6 kJ/mol indicating chemisorption. The density functional theory calculations revealed strong electronic interactions with the Fe(110) surface, while Monte Carlo simulations confirmed optimal molecular orientation and surface coverage. Analyses by scanning electron microscopy and energy-dispersive X-ray also validated the formation of a compact protective film. These findings underline the potential of ClPh-DDI and FPh-DDI as highly effective, long-lasting inhibitors for industrial corrosion protection.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"202 ","pages":"Article 107629"},"PeriodicalIF":7.8,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722640","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}
引用次数: 0
A synergistic co-utilization method of low-grade ferromanganese oxide ore and waste copperas: Selective extraction of Mn and synthesis of MnFe2O4 低品位氧化锰铁矿石与废铜协同利用方法:选择性萃取Mn合成MnFe2O4
IF 6.9 2区 环境科学与生态学
Process Safety and Environmental Protection Pub Date : 2025-07-24 DOI: 10.1016/j.psep.2025.107644
Jinrong Ju , Wei Yang , Tong Long , Sha Deng , Chao Yang
{"title":"A synergistic co-utilization method of low-grade ferromanganese oxide ore and waste copperas: Selective extraction of Mn and synthesis of MnFe2O4","authors":"Jinrong Ju ,&nbsp;Wei Yang ,&nbsp;Tong Long ,&nbsp;Sha Deng ,&nbsp;Chao Yang","doi":"10.1016/j.psep.2025.107644","DOIUrl":"10.1016/j.psep.2025.107644","url":null,"abstract":"<div><div>With the gradual depletion of high-grade manganese ores, developing and utilizing complex refractory ferromanganese oxide ore has become an inevitable strategy to ensure future manganese resource security. In addition, a large amount of waste copperas, a by-product of the titanium dioxide production industry, is piled up near the factory, which seriously restricts the sustainable development of the titanium dioxide production industry. Leveraging the reducing properties of waste copperas, this study proposes a process for the separation and recovery of Fe and Mn through co-roasting low-grade ferromanganese oxide ore with waste copperas. Through regulating the roasting conditions, Mn can be converted into water-soluble MnSO<sub>4</sub> and Fe into water-insoluble Fe<sub>2</sub>O<sub>3</sub>, and then the effective separation of Fe and Mn can be realized by water leaching. Under optimal conditions, Mn leaching efficiency reached 93.14 % with only 1.82 % Fe dissolution. The leaching solution was treated via hydrolytic precipitation to remove Fe and Al, yielding a solution with an Mn concentration of 17.22 g/L. Subsequently, MnFe<sub>2</sub>O<sub>4</sub> was synthesized via the hydrothermal method, exhibiting a saturation magnetization of 49.98 emu/g, coercivity of 36.30 Oe, and remanent magnetization of 3.75 emu/g. The leaching residue mainly consists of hematite and quartz with Fe grade up to 59.45 %, which can be used as a raw material for iron ore blending. The process proposed not only realizes the separation and recovery of Fe and Mn resources in low-grade ferromanganese oxide ore but also realizes the resource utilization of waste copperas, which can also promote the sustainable development of the titanium dioxide production industry. Moreover, the entire process demonstrates near-zero emissions potential, offering competitive advantages for industrial-scale implementation in terms of both economic and environmental benefits.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"201 ","pages":"Article 107644"},"PeriodicalIF":6.9,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704770","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}
引用次数: 0
Comparison of single layer Graphite/MnOx and Ti/MnOx electrodes: Using in electrochemical oxidation treatment of real saline wastewater 石墨/MnOx单层电极与钛/MnOx单层电极在实际含盐废水电化学氧化处理中的比较
IF 7.8 2区 环境科学与生态学
Process Safety and Environmental Protection Pub Date : 2025-07-24 DOI: 10.1016/j.psep.2025.107628
Atousa Ghaffarian Khorram , Narges Fallah , Bahram Nasernejad , Neda Afsham , Sahand Shafeei , Vahid Vatanpour
{"title":"Comparison of single layer Graphite/MnOx and Ti/MnOx electrodes: Using in electrochemical oxidation treatment of real saline wastewater","authors":"Atousa Ghaffarian Khorram ,&nbsp;Narges Fallah ,&nbsp;Bahram Nasernejad ,&nbsp;Neda Afsham ,&nbsp;Sahand Shafeei ,&nbsp;Vahid Vatanpour","doi":"10.1016/j.psep.2025.107628","DOIUrl":"10.1016/j.psep.2025.107628","url":null,"abstract":"<div><div>In this study, the electrodeposition method was used to fabricate MnO<sub>x</sub> electrode on titanium and graphite substrates for use in real saline wastewater treatment systems by the electro-oxidation. Comparison of electrochemical efficiency in treatment systems between these two substrates showed that the best fabricating conditions are current density: 2.5 mA/cm<sup>2</sup>, time: 1 and 5 min, temperature: 50 and 35 °C, solution concentration: 0.1 and 0.05 M and calcination at a temperature of 500 and 300 °C for 1 h, which leads to the formation of a crystal structure of Mn<sub>2</sub>O<sub>3</sub> and α-MnO<sub>2</sub> in the case of using titanium and graphite substrate, respectively. The results showed the capacity of 8210 µF/cm<sup>2</sup> and 70 % Chemical Oxygen Demand (COD) removal after 2 min for titanium substrate and 84,000 µF/cm<sup>2</sup> and 98.2 % COD removal after 70 min for graphite substrate. The energy consumption in the fabricating process on the titanium substrate is more than that of graphite (7 × 10<sup>−3</sup> &gt; 2.78 × 10<sup>−3</sup> kWh) and the energy consumption of produced water treatment with graphite substrate is more than that of titanium (7.7 × 10<sup>−3</sup> &gt; 0.32 × 10<sup>−3</sup> kWh/mg COD removal). The results showed that titanium substrate has high resistance against chemical and physical degradation, while graphite showed high resistance against electrochemical degradation. This study also demonstrates the integration of machine learning, specifically Artificial Neural Network (ANN), for process optimization. The ANN model accurately identified optimal parameters for electrode fabrication. To achieve maximum electrochemical capacity, these results show that the proposed MnO<sub>x</sub> electrode is very efficient in treating real saline produced water by electro-oxidation method and also in electrochemical energy storage.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"202 ","pages":"Article 107628"},"PeriodicalIF":7.8,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722638","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}
引用次数: 0
Green preparation, microstructure and human health risk assessment of phosphorus tailings-based unfired artificial lightweight aggregates 磷尾矿免燃人工轻骨料的绿色制备、微观结构及人体健康风险评价
IF 7.8 2区 环境科学与生态学
Process Safety and Environmental Protection Pub Date : 2025-07-24 DOI: 10.1016/j.psep.2025.107638
Rubin Han , Hongxiu Leng , Hui Luo , Wenbo Wu , Yunrui Zhao , Bukai Song , Meng Liu , Bao-Jie He
{"title":"Green preparation, microstructure and human health risk assessment of phosphorus tailings-based unfired artificial lightweight aggregates","authors":"Rubin Han ,&nbsp;Hongxiu Leng ,&nbsp;Hui Luo ,&nbsp;Wenbo Wu ,&nbsp;Yunrui Zhao ,&nbsp;Bukai Song ,&nbsp;Meng Liu ,&nbsp;Bao-Jie He","doi":"10.1016/j.psep.2025.107638","DOIUrl":"10.1016/j.psep.2025.107638","url":null,"abstract":"<div><div>Aiming at the safety hazards brought about by the accumulation of industrial solid waste (SW) in Lianyungang City, Jiangsu Province, as well as the resource shortage and high energy consumption problems faced by the manufacture of traditional building materials. This work is based on the concept of \"full solid waste utilization\" and uses industrial SW materials such as phosphorus tailings (PT) and alkali slag (SR) to prepare non-fired artificial lightweight aggregates. The study systematically explored the impact of various kinds of mixed water and curing conditions on the physical characteristics, microstructure, and durability of phosphorus tailings-based lightweight aggregates (PT-LWA). Additionally, the potential human health risk assessment and potential ecological risk index models were employed to assess the environmental risks and human health impacts associated with heavy metals (HMs) in PT-LWA. In addition, the carbon emissions and economic costs of PT-LWA were analyzed. The findings indicated that the PT-LWA prepared with mixed water NS 12 exhibited the best performance when the steam curing temperature was 90 °C. Its water absorption, cylinder crush strength, softening coefficient, and apparent density were found to be 13.67 %, 10.5 MPa, 0.945, and 1054.11 kg/m³, respectively. All these parameters met the requirements laid out in the Chinese standard GB/T 17431.1-2010. According to the results obtained from the human health risk assessment, hand-to-mouth intake was revealed to be the primary exposure route for the non-carcinogenic risks of various HMs in PT-LWA. The carcinogenic risks for both adults and children were low and within the tolerable range for humans.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"202 ","pages":"Article 107638"},"PeriodicalIF":7.8,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724716","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}
引用次数: 0
Experimental study on the detonation characteristics in ammonia-hydrogen-air mixtures 氨-氢-空气混合物爆轰特性的实验研究
IF 6.9 2区 环境科学与生态学
Process Safety and Environmental Protection Pub Date : 2025-07-23 DOI: 10.1016/j.psep.2025.107641
Desi Kong , Xiankai Zhang , Jiaxin Yao , Weikang Liu , Xuxu Sun , Xianfeng Chen , Lisong Shi , Junan Wang , Zhen Xu
{"title":"Experimental study on the detonation characteristics in ammonia-hydrogen-air mixtures","authors":"Desi Kong ,&nbsp;Xiankai Zhang ,&nbsp;Jiaxin Yao ,&nbsp;Weikang Liu ,&nbsp;Xuxu Sun ,&nbsp;Xianfeng Chen ,&nbsp;Lisong Shi ,&nbsp;Junan Wang ,&nbsp;Zhen Xu","doi":"10.1016/j.psep.2025.107641","DOIUrl":"10.1016/j.psep.2025.107641","url":null,"abstract":"<div><div>This study experimentally investigates the detonation characteristics of ammonia-hydrogen-air mixtures containing ammonia proportions up to 25 percent, focusing on fuel composition and initial pressure effects on detonation velocity, peak pressure, cellular structure, and critical detonation pressure. A 5000 mm detonation tube equipped with pressure sensors and smoked-foil was employed to analyze wave propagation dynamics. Results demonstrate that increasing ammonia content reduces detonation stability, amplifies velocity fluctuations and cellular irregularity. Peak pressure shows positive correlation with initial pressure but diminishes at higher ammonia concentrations due to dilution effects. The critical detonation pressure systematically rises with ammonia content, driven by its chemical inhibition. A dimensionless parameter D/λ was proposed to characterize the detonation limits. Experimental results demonstrated that all tested premixed gases exhibited D/λ ratios exceeding unity, indicating that the tube dimensions satisfy the minimum requirement for sustaining stable multi-headed detonation structures. These findings offer critical insights for optimizing ammonia-hydrogen fuel blends in practical combustion systems while mitigating detonation hazards. The work establishes quantitative relationships between ammonia fraction, pressure conditions, and detonation behavior, providing essential data for safe implementation of ammonia-based alternative fuels.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"201 ","pages":"Article 107641"},"PeriodicalIF":6.9,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713304","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}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信