Environmental Technology最新文献

Building high-speed facilitated transport channels in Pebax membranes with montmorillonite for efficient CO₂/N₂ separation. 用蒙脱石在 Pebax 膜中构建高速促进传输通道，实现高效 CO2/N2 分离。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2024-09-21 DOI: 10.1080/09593330.2024.2405666

Bing Zhang, Renying Qian, Yu Jiang, Jian Wang, Yonghong Wu

{"title":"Building high-speed facilitated transport channels in Pebax membranes with montmorillonite for efficient CO2/N2 separation.","authors":"Bing Zhang, Renying Qian, Yu Jiang, Jian Wang, Yonghong Wu","doi":"10.1080/09593330.2024.2405666","DOIUrl":"https://doi.org/10.1080/09593330.2024.2405666","url":null,"abstract":"Development of high-performance mixed matrix membranes (MMMs) is of great significance for CO2 separation membrane technology, in order to improve the commercial competitiveness and practical applications. Montmorillonite (MMT) was developed as a dopant to fabricate Polyether block amide (Pebax1074)-based MMMs for strengthening the CO2/N2 separation. The morphology, chemical groups, microstructure, and thermal properties of MMMs were characterised by scanning electron microscope, FTIR spectroscopy, X-ray diffraction and thermal analysis, respectively. The effects of MMT contents, permeation pressure and permeation temperature on the gas separation performance of the Pebax/MMT MMMs were investigated. The results show that the uniformly dispersed dopants MMT in the membrane matrix significantly influence the thermal stability and the structural compactness of MMMs. Moreover, the CO2 permeability monotonously increases in spite of the CO2/N2 selectivity first increasing and then decreasing with the MMT content elevating from 0% to 10% in MMMs. The highest CO2/N2 selectivity could reach to 120.3, along with the CO2 permeability of 130.6 Barrer for the MMMs made by MMT content of 6%.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Study on the elimination characteristics of smoke particles with different materials using electric agglomeration technology. 利用电聚结技术研究不同材料烟雾颗粒的消除特性。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2024-09-21 DOI: 10.1080/09593330.2024.2405663

Mingfeng Lu, Jie Feng, Kaige Wang, Yunchao Li, Dingkun Yuan, Guangxue Zhang, Hailin Gu

{"title":"Study on the elimination characteristics of smoke particles with different materials using electric agglomeration technology.","authors":"Mingfeng Lu, Jie Feng, Kaige Wang, Yunchao Li, Dingkun Yuan, Guangxue Zhang, Hailin Gu","doi":"10.1080/09593330.2024.2405663","DOIUrl":"https://doi.org/10.1080/09593330.2024.2405663","url":null,"abstract":"Fire smoke, consisting of solid particles and liquid droplets, poses risks of asphyxiation, poisoning, making it a significant contributor to fire-related fatalities and environmental pollution. The exploration of effective smoke control methods represents a vital approach to reducing the threat of fire smoke to public health and safety. This study aims to determine the characteristics of elimination for the fire smoke generated from burning four typical materials, thereby validating the universality of electric agglomeration smoke elimination technology. The results indicate that the elimination efficiency of electric agglomeration varies with the material type of the smoke. The rate of change in smoke transmittance from fast to slow is: polyvinyl chloride (PVC), polystyrene (PS), wood, and styrene butadiene rubber (SBR), respectively. With an external potential of 4 kV, PVC smoke reaches the safe threshold after 12.1 s, while SBR smoke achieves it in just 4.9 s. Analysis of the microscopic morphology of agglomerates with scanning electron microscopy (SEM) reveals that particle size distribution is an important factor affecting electric agglomeration elimination. This is because larger initial particles carry a greater charge, enabling the formation of larger agglomerates for more efficient removal. This study provides theoretical guidance for the practical application of electric agglomeration in eliminating smoke particles.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 high temperature gaseous hydrogen fluoride corrosion of boiler water-cooled wall pipes. 锅炉水冷壁管高温气态氟化氢腐蚀实验研究。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2024-09-21 DOI: 10.1080/09593330.2024.2405945

Jigang Zhang, Zijun Liu, Kun Cheng, Lianqin Jia, Kuihua Han

{"title":"Experimental study on high temperature gaseous hydrogen fluoride corrosion of boiler water-cooled wall pipes.","authors":"Jigang Zhang, Zijun Liu, Kun Cheng, Lianqin Jia, Kuihua Han","doi":"10.1080/09593330.2024.2405945","DOIUrl":"https://doi.org/10.1080/09593330.2024.2405945","url":null,"abstract":"Hydrogen fluoride (HF) corrosion of boiler water-cooled wall pipes at high temperature hinders the co-disposal of fluorinated hazardous wastes and coal by combustion. In this paper, common water-cooled wall pipes (15CrMoG and 20G) were utilized to perform gaseous HF corrosion experiments at high temperature on a horizontal tube furnace. The effects of temperature on HF corrosion of different water-cooled wall pipes in 0.2% HF were investigated. Corrosion kinetics curve was obtained by calculating the mass increase due to corrosion. The microscopic morphology and physical phase composition of water-cooled wall pipes after HF corrosion were analyzed. The corrosion resistances of the two water-cooled wall pipes decrease with increasing the temperature. The corrosion weight gain curves of 15CrMoG and 20G at 550 ℃ are ΔW1.9144 = 0.2100t and ΔW1.8356 = 0.1344t, respectively. The average corrosion rates of 15CrMoG and 20G are 0.0177 and 0.0125 mg/(cm2·h), respectively. The corrosion resistance of 15CrMoG is superior compared to 20G. The HF corrosion at high temperature consists of non-alternating fluorination and oxidation of the metal matrix. This study is of great significance for the protection of boilers with HF corrosion at high temperature.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The effect of low-temperature plasma pretreatment on the biodegradability of polyethylene films. 低温等离子体预处理对聚乙烯薄膜生物降解性的影响。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2024-09-21 DOI: 10.1080/09593330.2024.2405662

Yue Yang, Xiaoli Zhou, Zixun Zhou, Xiujuan Qian, Jie Zhou, Minjiao Chen, Weiliang Dong, Min Jiang

{"title":"The effect of low-temperature plasma pretreatment on the biodegradability of polyethylene films.","authors":"Yue Yang, Xiaoli Zhou, Zixun Zhou, Xiujuan Qian, Jie Zhou, Minjiao Chen, Weiliang Dong, Min Jiang","doi":"10.1080/09593330.2024.2405662","DOIUrl":"https://doi.org/10.1080/09593330.2024.2405662","url":null,"abstract":"With the increasing focus on environmental friendliness and sustainable development, extensive research has been conducted on the biodegradation of plastics. The non-hydrolyzable, highly hydrophobic, and high-molecular-weight properties of polyethylene (PE) pose challenges for cell interaction and biodegradation of PE substrates. To overcome these obstacles, PE films were treated with low-temperature plasma before biodegradation. The morphology, surface chemistry, molecular weight, and weight loss of PE films after plasma treatment and biodegradation were studied. The plasma treatment decreased the surface water contact angle, formed C-O and C = O groups, and decreased the molecular weight of PE films. With the increased pretreatment time, the biodegradation efficiency rose to 2.6% from 0.63% after 20 days of incubation. The mechanism was proposed that the surface oxygen-containing groups formed by plasma treatment can facilitate the bio-accessibility and be further decomposed and utilised by the microbes. This study provided an effective and rapid pretreatment strategy for improving biodegradation of PE.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Iota-carrageenan as a regenerating system for Eu³⁺ recovery: adsorption/desorption cycles. 伊塔卡拉胶作为 Eu3+ 回收的再生系统：吸附/解吸循环。

IF 2.2 4区环境科学与生态学

Environmental Technology Pub Date : 2024-09-19 DOI: 10.1080/09593330.2024.2404646

Oshrat Levy-Ontman, Shir Nagar, Ofra Paz-Tal, Adi Wolfson

{"title":"Iota-carrageenan as a regenerating system for Eu3+ recovery: adsorption/desorption cycles.","authors":"Oshrat Levy-Ontman, Shir Nagar, Ofra Paz-Tal, Adi Wolfson","doi":"10.1080/09593330.2024.2404646","DOIUrl":"https://doi.org/10.1080/09593330.2024.2404646","url":null,"abstract":"Renewable and biodegradable polysaccharides attract attention as environmentally friendly adsorbents for the removal of heavy metals from wastewater. One such group, is carrageenan, of which were recently successfully employed to adsorb representative lanthanide and actinide ions. Herein, iota-carrageenan-based hydrogels were used to adsorb europium ions (Eu3+) from water solutions, followed by desorption of the ions from the hydrogel beads and recycling of the beads three times. It was found that sorption yields from a 500 mg/L Eu3+ ion solution with beads that were prepared with 1 or 2 wt/v% aqueous solution of iota-carrageenan with CaCl2 (0.5 M) reached maximum sorption yield of 50% and 65%, correspondingly, after 1 h. In addition, the sorption kinetics followed the pseudo second-order model controlled by chemisorption. Desorption yields in the first cycle using NaNO3 (1 M) with both preparations were 57% and 74%, respectively. The sorption yields increased during the second and third cycles and were efficient in the overall pH range. Cryo-SEM, SEM, SEM-EDS and TGA analyses verified the adsorption and desorption of Eu3+ ions to and from the iota beads and that the Ca2+ ions that initially crosslinked the hydrogel were replaced during the cycles by Eu3+ or Na+ ions. In addition, the beads were stable and easily reusable for several sorption/desorption cycles. Furthermore, after sorption, the beads were characterised by a porous structure, such that beads prepared with a 2 wt/v% aqueous solution of iota-carrageenan yielded a more porous, ordered structure, and after desorption, the bead textures became even more porous.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effects of nano-bubble water on anaerobic co-digestion of cabbage waste and cow manure under mesophilic and thermophilic conditions 纳米气泡水对嗜中和嗜热条件下白菜废料和牛粪厌氧共同消化的影响

IF 2.8 4区环境科学与生态学

Environmental Technology Pub Date : 2024-09-18 DOI: 10.1080/09593330.2024.2405033

Youfei Zhou, Peilin Guo, Yi Liu, Weijie Hu, Tianfeng Wang

引用次数: 0

Improving the anaerobic digestion of sewage sludge by adding cobalt nanoparticles 通过添加纳米钴颗粒改进污水污泥的厌氧消化

IF 2.8 4区环境科学与生态学

Environmental Technology Pub Date : 2024-09-18 DOI: 10.1080/09593330.2024.2404648

Alfredo Córdova Lizama, Cristian Carrera Figueiras, Alejandro Zepeda Pedreguera, Noori M. Cata Saady, Juan Enrique Ruiz Espinoza

引用次数: 0

The effect of use of Ni/Fe and mZVI on phenol removal with the heterogenous fenton process and in-situ generation of H2O2 使用 Ni/Fe 和 mZVI 对异质芬顿过程和原位生成 H2O2 去除苯酚的影响

IF 2.8 4区环境科学与生态学

Environmental Technology Pub Date : 2024-09-18 DOI: 10.1080/09593330.2024.2402097

Burçin Yıldız Sevgili

引用次数: 0

Forward osmosis membrane with lightweight functionalised multiwall carbon nanotube nanofillers 带有轻质功能化多壁纳米碳管纳米填料的正向渗透膜

IF 2.8 4区环境科学与生态学

Environmental Technology Pub Date : 2024-09-16 DOI: 10.1080/09593330.2024.2401644

Z. Wu, B.V.N. Sewwandi, Xing Chen, G. Perera, L. Jayarathna, A.C.A. Jayasundara, Rohan Weerasooriya

引用次数: 0

Enzymatic bioremediation of polycyclic aromatic hydrocarbons (PAHs) in contaminated soil: a study on the recombinant laccase TVL 受污染土壤中多环芳烃（PAHs）的酶生物修复：关于重组漆酶 TVL 的研究

IF 2.8 4区环境科学与生态学

Environmental Technology Pub Date : 2024-09-12 DOI: 10.1080/09593330.2024.2381644

Litao Wang, Hong Liang, Xuran Du, Guanyu Chen, Weijian Lai, Ye Liu, Ming Li, Dawen Gao

引用次数: 0