Geosystem Engineering最新文献_第6页

Review on the environment friendly leaching of rare earth elements from the secondary resources using organic acids 有机酸从次生资源中环保浸出稀土元素研究进展

IF 1.7

Geosystem Engineering Pub Date : 2022-07-04 DOI: 10.1080/12269328.2022.2135139

Riya Banerjee, S. Chakladar, A. Mohanty, S. Chakravarty, S. Chattopadhyay, M. Jha

{"title":"Review on the environment friendly leaching of rare earth elements from the secondary resources using organic acids","authors":"Riya Banerjee, S. Chakladar, A. Mohanty, S. Chakravarty, S. Chattopadhyay, M. Jha","doi":"10.1080/12269328.2022.2135139","DOIUrl":"https://doi.org/10.1080/12269328.2022.2135139","url":null,"abstract":"ABSTRACT Essential for smartphones, computers, batteries of hybrid and electric cars, medical scanners and weaponry, rare earth elements (REEs) play a pivotal role in every sphere of life globally. The race is on to develop alternative ways to utilize secondary sources, open new mines, reduce waste and recycle more. From being entirely dependent on China’s REE resources, the researchers and entrepreneurs globally are working towards development of alternative strategies to explore their indigenous resources to be self-sufficient. However, the existing strategies to extract these valuables rely on usage of mineral acids/alkalis. Continued effort on development of sustainable leaching methodologies led to the exploration of organic acids as a potential alternative. Low-molecular-weight carboxylic acids and organosulphonic acids have emerged as highly potent class of lixiviants for REE extraction. The knowledge of their variation in chemical structure and their complex potency towards lanthanides is essential towards development of an industrially viable process. In this review, the efficiency of the different organic acids in leaching REEs from various primary and secondary sources, along with their respective structural relevance has been summarized. This is expected to ameliorate the existing momentum of advancing nature-friendly industrial processes.","PeriodicalId":12714,"journal":{"name":"Geosystem Engineering","volume":"25 1","pages":"95 - 115"},"PeriodicalIF":1.7,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43126352","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: 4

Recovery of copper from industrial sludge as a sustainable resource: A review 从工业污泥中回收铜作为一种可持续资源：综述

IF 1.7

Geosystem Engineering Pub Date : 2022-07-04 DOI: 10.1080/12269328.2022.2161640

H. B. Trinh, Seung-Moak Kim, T. Son, Jaeryeong Lee

{"title":"Recovery of copper from industrial sludge as a sustainable resource: A review","authors":"H. B. Trinh, Seung-Moak Kim, T. Son, Jaeryeong Lee","doi":"10.1080/12269328.2022.2161640","DOIUrl":"https://doi.org/10.1080/12269328.2022.2161640","url":null,"abstract":"ABSTRACT The transition from the treatment of the industrial sludge as a solid waste to a potential resource by employing efficient processes is necessary for sustainable development to produce valuable metal such as copper. The recycling of Cu-bearing sludge is thus quite promising as compared to that of mining only primary ores, since it can reduce the energy consumption and environmental impacts due to greenhouse gas emission as well as the depletion of mineral resources. The present review paper emphasizes on the necessity of copper recovery from industrial sludge while examining the compositions and the characterization techniques applied, and current extraction and the separation approaches followed. The most significant issues addressed include the effective extraction of copper and still achieving selective separation from other impurities. The hydrometallurgical techniques provide more appropriate methods for copper recovery from the complex industrial sludge than other approaches; this too requires further investigations to enhance the extraction efficiency, separation selectivity from the leach solutions and the quality of obtained Cu products.","PeriodicalId":12714,"journal":{"name":"Geosystem Engineering","volume":"25 1","pages":"116 - 131"},"PeriodicalIF":1.7,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46466823","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

Recovery of rare earth elements from coal fly ash using enrichment by sodium hydroxide leaching and dissolution by hydrochloric acid 氢氧化钠浸出富集-盐酸溶解法从粉煤灰中回收稀土元素

IF 1.7

Geosystem Engineering Pub Date : 2022-03-04 DOI: 10.1080/12269328.2022.2120092

H. B. Trinh, Seung-In Kim, Jaeryeong Lee

{"title":"Recovery of rare earth elements from coal fly ash using enrichment by sodium hydroxide leaching and dissolution by hydrochloric acid","authors":"H. B. Trinh, Seung-In Kim, Jaeryeong Lee","doi":"10.1080/12269328.2022.2120092","DOIUrl":"https://doi.org/10.1080/12269328.2022.2120092","url":null,"abstract":"ABSTRACT The most common method to recover valuable rare earth elements from the potential resource coal fly ash is direct leaching in acidic solution. However, the extraction of rare earth elements using only acid leaching is not sufficiently effective due to the presence of Al-Si-based glasses. In the present work, pre-treatment using NaOH leaching was investigated to reduce the content of Al-Si-based phase before subjecting to acid leaching. The treatment at conditions NaOH 5 M, at 100 °C and for 120 min could dissolve 53% of the ash sample, and the rare earth contents were enriched from 267 mg/kg to 556 mg/kg. The NaOH leaching promote the further extraction of rare earth elements in all of acid medias (HCl, HNO3 and H2SO4), and HCl was the most effective leachant. More than 90% of rare earth elements was dissolved in 5 M HCl solution at 50°C after 120 min. The combination of NaOH treatment and HCl leaching presented an effective approach to extract rare earth elements from coal fly ash with enrichment of rare earth element contents, increase the leaching efficiency and avoidance of harmful impacts to the environment due to the conventional pre-treatment using alkaline roasting.","PeriodicalId":12714,"journal":{"name":"Geosystem Engineering","volume":"25 1","pages":"53 - 62"},"PeriodicalIF":1.7,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47633307","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: 6

A strategy for ammonia odor monitoring, prediction, and reduction from livestock manure wastes in Korea: a short review 韩国畜禽粪便中氨气味的监测、预测和减少策略:简要回顾

IF 1.7

Geosystem Engineering Pub Date : 2022-03-04 DOI: 10.1080/12269328.2022.2120094

Sang-hun Lee, S. Bae

{"title":"A strategy for ammonia odor monitoring, prediction, and reduction from livestock manure wastes in Korea: a short review","authors":"Sang-hun Lee, S. Bae","doi":"10.1080/12269328.2022.2120094","DOIUrl":"https://doi.org/10.1080/12269328.2022.2120094","url":null,"abstract":"ABSTRACT Ammonia is a malodorous substance, even at low concentrations, that has harmful effects on humans and the environment. Ammonia is considered an alternative energy source for hydrogen energy transport. Most ammonia is emitted from livestock facilities, as the main sources of ammonia odor. Therefore, this study focused on the emission and dispersion of ammonia as the main compound in ammoniacal odor substances from livestock manure facilities, as well as on the treatment and recovery of ammonia near livestock facilities. First, this study reviewed the monitoring of ammoniacal odor recommended by multiple low-cost monitoring sensors integrated with information technology (IT). To enhance the monitoring data quality, periodic calibration and validation through reference instruments is essential. To estimate odor emissions, emission factors should be classified by considering various scenarios and conditions. The application of modelling is desirable for predicting the dispersion of ammonia and odors, but a simpler model should be developed for non-experts in the preliminary stage. For ammonia treatment and resource recovery, it is necessary to support the development of high-efficiency and eco-friendly treatment technologies, which should be tested in upscaled systems with actual odors under field conditions.","PeriodicalId":12714,"journal":{"name":"Geosystem Engineering","volume":"25 1","pages":"35 - 43"},"PeriodicalIF":1.7,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44192133","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

The key challenges towards the effective implementation of digital transformation in the mining industry 采矿业有效实施数字化转型面临的主要挑战

IF 1.7

Geosystem Engineering Pub Date : 2022-03-04 DOI: 10.1080/12269328.2022.2120093

W. Abdellah, Jong-Gwan Kim, M. Hassan, Mahrous A. M. Ali

引用次数: 2

Role of diffusion osmosis on the mechanical and petrophysical alterations of shale when interacting with aqueous solutions 当与水溶液相互作用时，扩散渗透在页岩的机械和岩石物理变化中的作用

IF 1.7

Geosystem Engineering Pub Date : 2022-03-04 DOI: 10.1080/12269328.2022.2081623

Hawra Al-Sarraf, Talal Albazali, A. Garrouch

{"title":"Role of diffusion osmosis on the mechanical and petrophysical alterations of shale when interacting with aqueous solutions","authors":"Hawra Al-Sarraf, Talal Albazali, A. Garrouch","doi":"10.1080/12269328.2022.2081623","DOIUrl":"https://doi.org/10.1080/12269328.2022.2081623","url":null,"abstract":"ABSTRACT Several experimental procedures were employed to investigate the impact of salt type and concentration on shale’s effective porosity and compressive strength. The use of a special gravimetric technique made it possible to quantify water and ion transport into shale when interacting with NaCl, KCl, and CaCl2 solutions. Results showed an increase in shale’s effective porosity when dilute solutions (less than 5% w/w) interacted with shale. On the other hand, a decrease in shale’s effective porosity was observed when the concentration of salt increased to 10%, 15% and 20% w/w. It is argued that the increase in porosity at low salt concentrations was due to cementation degradation caused by ionic invasion without loss of grain cohesion and mechanical stability. Decrease in porosity when higher concentrations of salts were used was apparently due to loss of grain cohesion and pore structure integrity caused by the combined effects of ionic diffusion and diffusion osmosis. These observations were confirmed by shale’s compressive strength measurements. The results showed a negligible change in compressive strength of shale when it interacted with 5% NaCl, KCl, and CaCl2 solutions. In contrast, a considerable reduction in shale’s compressive strength was recorded for higher salt concentrations (10%, 15% and 20% w/w).","PeriodicalId":12714,"journal":{"name":"Geosystem Engineering","volume":"25 1","pages":"13 - 24"},"PeriodicalIF":1.7,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47309633","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

An analysis of Cambodia’s policy-maker’s acceptance of renewable and nuclear energy 柬埔寨政策制定者接受可再生能源和核能的分析

IF 1.7

Geosystem Engineering Pub Date : 2022-03-04 DOI: 10.1080/12269328.2022.2108511

Soohyeon Kim, Inkyung Cho, Surim Oh, Eunnyeong Heo

{"title":"An analysis of Cambodia’s policy-maker’s acceptance of renewable and nuclear energy","authors":"Soohyeon Kim, Inkyung Cho, Surim Oh, Eunnyeong Heo","doi":"10.1080/12269328.2022.2108511","DOIUrl":"https://doi.org/10.1080/12269328.2022.2108511","url":null,"abstract":"ABSTRACT In recent years, the Cambodian government has been promoting clean energy sources, making it essential to understand better the entry/barrier conditions for greater utilisation of renewable and nuclear power. Accordingly, this study aims to analyse the potential for expanding renewable and nuclear energy use in Cambodia. To derive practical recommendations for the political sector, we surveyed officials from the government and various institutions. Specifically, we measured Cambodia’s acceptance of renewable and nuclear energy, derived entry/barrier conditions, and identified the decision-making priorities of the government in introducing and expanding each energy source. The analysis employed the ordered logit-probit analysis and analytic hierarchy process (AHP). This study provides a practical guide for the Cambodian government, and investors and partners who intend to contribute to the renewable and nuclear systems of the country: renewable energy requires strategies maximising the economic benefits of its rich potential; while nuclear generation needs broad economic and technological cooperation with foreign governments and companies, and preparation for socio-political instability.","PeriodicalId":12714,"journal":{"name":"Geosystem Engineering","volume":"25 1","pages":"25 - 34"},"PeriodicalIF":1.7,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48848572","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

Mineralogy of beach sand in Jumundo, Korea and recovery of heavy minerals using Humphreys spiral concentrator and shaking table followed by magnetic separation process 韩国朱蒙多海滩砂矿物学研究及采用Humphreys螺旋选矿机和振动台磁选工艺回收重矿物

IF 1.7

Geosystem Engineering Pub Date : 2022-03-04 DOI: 10.1080/12269328.2022.2074150

Hee-Young Shin, S. Chae, Kyoungkeun Yoo

引用次数: 0

Perspectives on the concepts of futuristic mineral concentration using microscopic robots 使用微型机器人对未来矿物浓缩概念的展望

IF 1.7

Geosystem Engineering Pub Date : 2021-11-02 DOI: 10.1080/12269328.2022.2074149

A. Gomez-Flores, Hyunjung Kim

引用次数: 1

Research and practice on oil displacement law of different well pattern in offshore oilfield 海上油田不同井网驱油规律的研究与实践

IF 1.7

Geosystem Engineering Pub Date : 2021-11-02 DOI: 10.1080/12269328.2022.2054865

Peng Wang, S. Wang, Hongyou Zhang, Guangyi Sun, Shangqi Zhai, Huijiang Chang, Chengli Zhang

{"title":"Research and practice on oil displacement law of different well pattern in offshore oilfield","authors":"Peng Wang, S. Wang, Hongyou Zhang, Guangyi Sun, Shangqi Zhai, Huijiang Chang, Chengli Zhang","doi":"10.1080/12269328.2022.2054865","DOIUrl":"https://doi.org/10.1080/12269328.2022.2054865","url":null,"abstract":"ABSTRACT BZ oilfield is the first oilfield successfully developed with large-scale horizontal well pattern in Bohai sea. In order to study the well pattern suitable for offshore fluvial sedimentary oilfield, based on the characteristics of offshore oilfield, such as large well spacing, few wells and complex well pattern, the authors designed a set of heterogeneous reservoir models under the guidance of similarity theory. The different well patterns, different displacement rates and different heterogeneity were simulated. The different displacement effects were studied by measuring the electrical characteristics, injection volume, oil production and water production of the model. It is found that the horizontal well pattern is used for low-speed development, the water breakthrough of oil wells is slow in the relatively homogeneous reservoir. In the heterogeneous high permeability reservoir(Jk = 4), the oilfield adopts low-speed development by using staggered well pattern, the water breakthrough of the oil well is slow, and the EOR is large. In the heterogeneous high permeability reservoir(Jk = 6), the oilfield adopts the combined well pattern for low-speed development, the EOR is large. This study deepens the understanding of the development law of horizontal well pattern and the distribution law of remaining oil, and provides a basis for oilfield development and adjustment.","PeriodicalId":12714,"journal":{"name":"Geosystem Engineering","volume":"24 1","pages":"275 - 286"},"PeriodicalIF":1.7,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46286571","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