发布求助
文献互助 智能选刊 最新文献

Resources Recycling最新文献

筛选
英文 中文
Manufacturing Properties and Hardening Characteristic of CO2 Reactive Hardening Cement CO2反应硬化水泥的制备性能及硬化特性
Resources Recycling Pub Date : 2022-12-31 DOI: 10.7844/kirr.2022.31.6.52
Ki-Yeon Moon, Byung-Ryeol Kim, Seung-Han Lee, Moon-Kwan Choi, Kye-Hong Cho, Jin-sang Cho
{"title":"Manufacturing Properties and Hardening Characteristic of CO2 Reactive Hardening Cement","authors":"Ki-Yeon Moon, Byung-Ryeol Kim, Seung-Han Lee, Moon-Kwan Choi, Kye-Hong Cho, Jin-sang Cho","doi":"10.7844/kirr.2022.31.6.52","DOIUrl":"https://doi.org/10.7844/kirr.2022.31.6.52","url":null,"abstract":"","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80843769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Study on the Decontamination of Cs-137 and Sr-90 Contained in the Liquid Radioactive Waste Discharged from the Spent Fuel Storage Tank Using Microalgae 微藻对乏燃料储罐放射性废液中Cs-137和Sr-90的净化研究
Resources Recycling Pub Date : 2022-10-31 DOI: 10.7844/kirr.2022.31.5.20
Tae Young Kim, H. Park, Y. Song, U. Lee
{"title":"A Study on the Decontamination of Cs-137 and Sr-90 Contained in the Liquid Radioactive Waste Discharged from the Spent Fuel Storage Tank Using Microalgae","authors":"Tae Young Kim, H. Park, Y. Song, U. Lee","doi":"10.7844/kirr.2022.31.5.20","DOIUrl":"https://doi.org/10.7844/kirr.2022.31.5.20","url":null,"abstract":"In this study, the applicability of microalgae was evaluated for eco-friendly decontamination of cesium-137 (Cs-137) and strontium-90 (Sr-90), which are radioactive nuclides contained in radioactive waste. The monolithic radioactive solution used in the experiment was manufactured at a concentration of 1.5 Bq/mL Cs-137 and 1.0 Bq/mL Sr-90 by diluting a standard radioactive solution and distilled water. This experiment used two types of microalgae, Chlorella Vulgaris was used for Sr-90 decontamination and Hematococcus pluvialis for Cs-137 decontamination. The experimental method is to put the microalgae cultured for 2 weeks into a bottle with a semi-permeable membrane, and then put the bottle in which the microalgae was put into the manufactured radioactive solution, so that the microalgae and the radioactive solution react through the semi-permeable membrane for 48 hours. For the radioactivity concentration analysis of each sample, a gamma-ray nuclide analyzer was used for Cs-137, a γ-ray isotope, and a Liquid Scintillation Count(LSC) was used for Sr-90, a β-ray isotope. As a result of the experiment, it was confirmed that about 88.0 % of Cs-137 and about 89.7 % of Sr-90 could be decontaminated, and about 98.6 % of Sr-90 was finally able to be decontaminated by the two-stage decontamination method.","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82480248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Leaching of Molybdenite by Hydrochloric Acid Solution Containing Sodium Chlorate 含氯酸钠的盐酸溶液浸出辉钼矿
Resources Recycling Pub Date : 2022-10-31 DOI: 10.7844/kirr.2022.31.5.26
Thi Nhan Hau Nguyen, Thi Thu Huong Nguyen, Man-Seung Lee
{"title":"Leaching of Molybdenite by Hydrochloric Acid Solution Containing Sodium Chlorate","authors":"Thi Nhan Hau Nguyen, Thi Thu Huong Nguyen, Man-Seung Lee","doi":"10.7844/kirr.2022.31.5.26","DOIUrl":"https://doi.org/10.7844/kirr.2022.31.5.26","url":null,"abstract":"Molybdenum is widely used in many materials; thus, its recovery from ores and secondary resources has attracted considerable attention. In this study, the leaching of molybdenite ore using hydrochloric acid containing sodium chlorate as an oxidizing agent was studied. The effects of several variables, such as the concentrations of HCl and NaClO 3 , reaction temperature and time, and pulp density, on the leaching of the ore were investigated. Under strong acidic and oxidizing conditions, the sulfide in the ore was dissolved as a sulfate ion, which formed gypsum with Ca(II), leading to a decrease in the leaching percentage of Mo(VI) from the ore. The leaching percentage of molybdenum was greater than 90%, while those of iron, calcium, and silicon were 38, 29, and 67%, respectively, under the optimum conditions: 2.0 M HCl, 0.5 M NaClO 3 , pulp density of 5 g/L, temperature of 90 °C, and treatment time of 60 min.","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78502431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Study on the Electrochemical Kinetics of Electrowinning Process of Valuable Metals Recovered from Lithium-ion Batteries 锂离子电池回收有价金属电积过程的电化学动力学研究
Resources Recycling Pub Date : 2022-10-31 DOI: 10.7844/kirr.2022.31.5.59
S. C. Park, Yong Hwan Kim, Man-Seung Lee, S. Son
{"title":"A Study on the Electrochemical Kinetics of Electrowinning Process of Valuable Metals Recovered from Lithium-ion Batteries","authors":"S. C. Park, Yong Hwan Kim, Man-Seung Lee, S. Son","doi":"10.7844/kirr.2022.31.5.59","DOIUrl":"https://doi.org/10.7844/kirr.2022.31.5.59","url":null,"abstract":"To investigate the rate-determining step of nickel, cobalt and copper electrowinning, experiments were conducted by varying the electrolyte temperature and agitation speed using a rotating disc electrode. Analyzing the rate-determining step by calculating the activation energy in the electrowinning process, it was found that nickel electrowinning is controlled by a mixed mechanism (partly by chemical reaction and partly by mass transport), cobalt is controlled by chemical reaction, and copper is controlled by mass transfer. Electrowinning of nickel, cobalt and copper was performed by varying the electrolyte temperature and agitation speed, and the comparison of the current efficiencies was used the determine the rate-determining step.","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78124448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis of Silicon Carbide Powder Using Recovered Silicon from Solar Waste Silicon Wafer 利用太阳能废硅片回收硅合成碳化硅粉体
Resources Recycling Pub Date : 2022-10-31 DOI: 10.7844/kirr.2022.31.5.52
Yoonjoo Lee, Oh-Kyu Kwon, Ju-Hyeong Sun, Geun-Yong Jang, Joon-Chul Choi, W. Kwon
{"title":"Synthesis of Silicon Carbide Powder Using Recovered Silicon from Solar Waste Silicon Wafer","authors":"Yoonjoo Lee, Oh-Kyu Kwon, Ju-Hyeong Sun, Geun-Yong Jang, Joon-Chul Choi, W. Kwon","doi":"10.7844/kirr.2022.31.5.52","DOIUrl":"https://doi.org/10.7844/kirr.2022.31.5.52","url":null,"abstract":"Silicon carbide powder was prepared from carbon black and silicon recovered from waste solar panels. In the solar power generation market, the number of crystalline silicon modules exceeds 90%. As the expiration date of a photovoltaic module arrives, the development of technology for recovering and utilizing silicon is very important from an environmental and economic point of view. In this study, silicon was recovered as silicon carbide from waste solar panels: 99.99% silicon powder was recovered through purification from a 95.74% purity waste silicon wafer. To examine the synthesis characteristics of SiC powder, purified 99.99% silicon powder and carbon powder were mixed and heat-treated (1,300, 1,400 and 1,500 °C) in an Ar atmosphere. The characteristics of silicon and silicon carbide powders were analyzed using particle size distribution analyzer, XRD, SEM, ICP, FT-IR, and Raman analysis.","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87345077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Fundamental Study on the Load Resistance Characteristics of Revetment Concrete Block with Recycled Concrete Aggregate and GFRP Rebar 再生混凝土骨料加GFRP筋护岸混凝土砌块抗荷载特性基础研究
Resources Recycling Pub Date : 2022-10-31 DOI: 10.7844/kirr.2022.31.5.42
Yongjae Kim, Jong-Hoe Kim, D. Moon
{"title":"A Fundamental Study on the Load Resistance Characteristics of Revetment Concrete Block with Recycled Concrete Aggregate and GFRP Rebar","authors":"Yongjae Kim, Jong-Hoe Kim, D. Moon","doi":"10.7844/kirr.2022.31.5.42","DOIUrl":"https://doi.org/10.7844/kirr.2022.31.5.42","url":null,"abstract":"Aggregate resources in Korea are expected to run out owing to an increase in development demand and construction investment. Recycled concrete aggregates (RCA), extracted from waste concrete, have a lower quality than natural aggregates. However, RCA can produce concrete similar in quality to the normal concrete by aggregate pretreatment, use of admixtures, and quality control. RCA are most suitable for use in precast concrete products such as sidewalk blocks and revetment blocks. Herein, the feasibility of producing revetment blocks using recycled aggregate concrete (RAC), similar in quality to normal concrete, was analyzed. The amount of RCA was varied, and moderate high early strength cement and steam curing were used to produce the concrete test blocks. In the block test, the load resistance characteristics of the blocks were evaluated to determine optimal RAC and glass fiber reinforced polymer (GFRP) rebar compositions. Thus, the variable that reduced the cement content was determined at the same level as that of natural aggregate concrete by the control of steam curing. In the concrete block test, although this depends on the reinforcement ratio, the RAC block exhibited the same or better performance than a normal concrete block. Therefore, the low quality of RCA in RAC is no longer a problem when concrete mixing and curing are controlled and appropriate reinforcement is used.","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80354114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of Economic and Environmental Effects of Remanufactured Furniture Through Case Studies 通过案例分析再制造家具的经济和环境影响
Resources Recycling Pub Date : 2022-10-31 DOI: 10.7844/kirr.2022.31.5.67
Jong-Hyo Lee, Hong-Yoon Kang, Y. Hwang, H. Hwang
{"title":"Analysis of Economic and Environmental Effects of Remanufactured Furniture Through Case Studies","authors":"Jong-Hyo Lee, Hong-Yoon Kang, Y. Hwang, H. Hwang","doi":"10.7844/kirr.2022.31.5.67","DOIUrl":"https://doi.org/10.7844/kirr.2022.31.5.67","url":null,"abstract":"The furniture industry has a high possibility to create value-added and a high potential to create new occupations due to the characteristics of the industry, which mainly consists of small and medium-sized enterprises (SMEs). However, the used furniture, which has sufficient reuse value, is also crushed and used as solid refuse fuel (SRF) recently. Besides, the number of 104 million won which is 3.11 times more than the average income of a single-worker household in Korea and its B/C ratio was estimated about 30 which means high business feasibility. Revenue through furniture remanufacturing also showed 320 times higher than that of SRF production from the perspective of weight. In addition, it is shown that the GHGs reduction from the furniture remanufacturing is 2.2 ton CO 2 -eq. per year, which is similar to the amount of GHGs absorption effect of 937 pine trees or 622 Korean oak trees annually. Thus the results of this study demonstrate that it is important to adopt an appropriate recycling method considering the economic and environmental effects at the end-of-life stage.","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83260063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 Li(I) Precipitation from the Leaching Solution of the Dust from Spent Lithium-ion Batteries Treatment between Sodium Carbonate and Ammonium Carbonate 碳酸钠与碳酸铵处理废锂离子电池粉尘浸出液中Li(I)析出的比较
Resources Recycling Pub Date : 2022-10-31 DOI: 10.7844/kirr.2022.31.5.34
Thi Thu Huong Nguyen, Man-Seung Lee
{"title":"Comparison of Li(I) Precipitation from the Leaching Solution of the Dust from Spent Lithium-ion Batteries Treatment between Sodium Carbonate and Ammonium Carbonate","authors":"Thi Thu Huong Nguyen, Man-Seung Lee","doi":"10.7844/kirr.2022.31.5.34","DOIUrl":"https://doi.org/10.7844/kirr.2022.31.5.34","url":null,"abstract":"Smelting reduction of spent lithium-ion batteries results in metallic alloys, slag, and dust containing Li(I). Precipitation of Li 2 CO 3 was performed using the synthetic leachate of the dust. Herein, the effects of the precipitant and addition of non-aqueous solvents on the precipitation of Li(I) were investigated. Na 2 CO 3 was a more effective precipitating agent than (NH 4 ) 2 CO 3 owing to the hydrolysis reaction of dissolved ammonium and carbonate. The addition of acetone or ethanol improved the Li(I) precipitation percentage for both the precipitants. When using (NH 4 ) 2 CO 3 , the Li(I) precipitation percentage increased at a solution pH of 12. Under the same conditions, the Li(I) precipitation percentage using Na 2 CO 3 was much higher than that using (NH 4 ) 2 CO 3 .","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87730658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of Electro-membrane for Regeneration of NaOH and H2SO4 from the Spent Na2SO4 Solutions in Metal Recovery Process 电膜在金属回收废Na2SO4溶液再生NaOH和H2SO4中的应用
Resources Recycling Pub Date : 2022-10-31 DOI: 10.7844/kirr.2022.31.5.3
Yeon-Chul Cho, Ki-Hun Kim, Jae-Woo Ahn
{"title":"Application of Electro-membrane for Regeneration of NaOH and H2SO4 from the Spent Na2SO4 Solutions in Metal Recovery Process","authors":"Yeon-Chul Cho, Ki-Hun Kim, Jae-Woo Ahn","doi":"10.7844/kirr.2022.31.5.3","DOIUrl":"https://doi.org/10.7844/kirr.2022.31.5.3","url":null,"abstract":"Electro-membrane technology is a process for separating and purifying substances in aqueous solution by electric energy using an ion exchange membrane with selective permeability, such as electrodialysis (ED) and bipolar electrodialysis (BMED). Electro-membrane technology is attracting attention as an environmental friendly technology because it does not generate by-products during the process and the recovered base or acid can be reused during the process. In this paper, we investigate the principles of ED and BMED technologies and various characteristics and problems according to the cell configuration. In particular, by investigating and analyzing research cases related to the treatment of waste sodium sulfate (Na 2 SO 4 ), which is generated in large amounts during the metal recovery process.","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76809167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Study on the Leaching Effect and Selective Recovery of Lithium Element by Persulfate-based Oxidizing Agents from Waste LiFePO4 Cathode 过硫酸盐基氧化剂从废LiFePO4阴极中浸出及选择性回收锂元素的研究
Resources Recycling Pub Date : 2022-08-31 DOI: 10.7844/kirr.2022.31.4.40
Hee-Seon Kim, Dae-Weon Kim, Dae-Hwan Jang, Boram Kim, Yun Jin, B. Chae, Sangwook Lee
{"title":"A Study on the Leaching Effect and Selective Recovery of Lithium Element by Persulfate-based Oxidizing Agents from Waste LiFePO4 Cathode","authors":"Hee-Seon Kim, Dae-Weon Kim, Dae-Hwan Jang, Boram Kim, Yun Jin, B. Chae, Sangwook Lee","doi":"10.7844/kirr.2022.31.4.40","DOIUrl":"https://doi.org/10.7844/kirr.2022.31.4.40","url":null,"abstract":"In waste lithium iron phosphate (LFP) batteries, the cathode material contains approximately 4% lithium. Recycling the constituent elements of batteries is important for resource circulation and for mitigating the environmental pollution. Li contained in the waste LFP cathode powder was selectively leached using persulfate-based oxidizing agents, such as sodium persulfate, potassium persulfate, and ammonium persulfate. Leaching efficiency and waste LFP powder properties were compared and analyzed. Pulp density was used as a variable during leaching, which was performed for 3 h under each condition. The leaching efficiency was calculated using the inductively coupled plasma (ICP) analysis of the leachate. All types of persulfate-based oxidizing agents used in this study showed a Li leaching efficiency over 92%. In particular, when leaching was performed using (NH 4 ) 2 S 2 O 8 , the highest Li leaching percentage of 93.3% was observed, under the conditions of 50 g/L pulp density and an oxidizing agent concentration of 1.1 molar ratio.","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75378309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
首页 上一页 下一页 尾页
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
现在去查看 取消
×
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：481959085
Book学术官方微信