Covalent triazine frameworks for the selective sorption of palladium from highly acidic radioactive liquid wastes

Author(s):  
Pengcheng Wu ◽  
Hui Liu ◽  
Mengqi Sun ◽  
Yaxin Zeng ◽  
Jiawei Ye ◽  
...  

Efficient palladium recovery from high level liquid wastes (HLLW) is of increasing priority for sustainable development and addressing issues in radioactive wastes treatment. However, searching for robust materials for palladium...

Sensors ◽  
2017 ◽  
Vol 17 (6) ◽  
pp. 1377 ◽  
Author(s):  
Sylvie Delepine-Lesoille ◽  
Sylvain Girard ◽  
Marcel Landolt ◽  
Johan Bertrand ◽  
Isabelle Planes ◽  
...  

Author(s):  
L. S. Pioro ◽  
I. L. Pioro

It is well known that high-level radioactive wastes (HLRAW) are usually vitrified inside electric furnaces. Disadvantages of electric furnaces are their low melting capacity and restrictions on charge preparation. Therefore, a new concept for a high efficiency combined aggregate – submerged combustion melter (SCM)–electric furnace was developed for vitrification of HLRAW. The main idea of this concept is to use the SCM as the primary high-capacity melting unit with direct melt drainage into an electric furnace. The SCM employs a single-stage method for vitrification of HLRAW. The method includes concentration (evaporation), calcination, and vitrification of HLRAW in a single-stage process inside a melting chamber of the SCM. Specific to the melting process is the use of a gas-air or gas-oxygen-air mixture with direct combustion inside a melt. Located inside the melt are high-temperature zones with increased reactivity of the gas phase, the existence of a developed interface surface, and intensive mixing, leading to intensification of the charge melting and vitrification process. The electric furnace clarifies molten glass, thus preparing the high-quality melt for subsequent melt pouring into containers for final storage.


2021 ◽  
Vol 13 (7) ◽  
pp. 3736
Author(s):  
Nan Lu ◽  
Jiwei Zhu ◽  
Hui Chi ◽  
Bing Wang ◽  
Lu Chen

To achieve the sustainable development goals established by the United Nations in 2015, China has adopted a series of measures to promote the modernization of water conservancy. However, its construction in China is imbalanced across regions as the endowment of water resources and economic development are distinct. Consequently, it is important to assess the progress of and analyze the spatial heterogeneity of water conservancy modernization construction in China from the perspective of sustainable development goals (SDGs). In this study, 31 regions in China were selected, and data on water conservancy construction in these sampled regions (excluding Hong Kong, Macao, and Taiwan) were collected in 2018. The results show that there exists an imbalanced development in terms of the overall level and the index level. About 60% of the regions scored below the overall average score for China’s current modernization of water conservancy. The eastern areas presented a high level of modernization, while the central, northeast, and western areas showed comparable modernization of water conservancy, all of which lag behind eastern areas of China. Furthermore, China’s water conservancy modernization also presented a strong spatial autocorrelation, and there was at least one deficiency in 55% of the regions, with the rate of deficiencies emerging in the West being much higher than in other regions. In a nutshell, this study provides a novel framework that can be extended to evaluate the SDGs and the effectiveness of water governance in other countries.


2017 ◽  
Vol 7 (1) ◽  
pp. 34 ◽  
Author(s):  
Abdulrazag Mohamed Etelawi ◽  
Keith A. Blatner ◽  
Jill McCluskey

There is a strong need to study sustainability and depletion accounting of oil in the Libyan economy because oil production and export is the single largest source of national income in the country. This study covers the time period from 1990 to 2009. Throughout this period, the Libyan national economy used its oil and petroleum industries to increase national income. Development sustainability can be defined as investment divided by GDP. This measure provides an indication of the low level of sustainable development in Libya over the period of analysis, which is 0.38 on average. It is important that the Libyan government develop and implement plans and strategies for achieving sustainability and the maintenance of oil resources.Carbon dioxide emissions provide another indication of the presence or absence of sustainability. The ratio of carbon dioxide ranged from a minimum of 8.50 metric tons per capita in 1990 to 10.00 metric tons per capita in 2009 and average 9.07 metric tons per capita over the course of the study period. CO2 emissions were also much higher than other countries in the Middle East and North Africa. This suggests there was relatively little interest in the sustainable development of the Libyan economy during this period. The Environment Domestic Product (EDP) increased sharply from the beginning of the study at $24.23 billion in 1991 to $45.87 billion in 2009 in constant dollars. Again, one can infer that policy makers did not consider the depletion of oil resources and the environment in their planning process, or at least did not place a high level of concern on this issue.


2021 ◽  
Vol 3 (1) ◽  
pp. 33-44
Author(s):  
Maria Hellenikapoulos ◽  
Intiyas Utami

The high level and trend of corruption in Indonesia Province could hinder the goal of Sustainable Development Goals point 16. This study aims to identify disclosures of integrity through websites and classify the Indonesia Provinces into 3 categories, namely high, medium, and low based on the integrity disclosure index using institutional theory. The data is based on content analysis to analyze practices through disclosure of integrity on 34 Indonesian Province websites using the Integrity Framework Disclosure Index instrument. The findings indicate that Indonesia has disclosed 775 items (48%). The items of vision, mission, and integrity report are the biggest disclosed items among other items that show Indonesia’s effort to create a “good image” in the public eyes. Several Provinces are in the moderate category because of a strategic issue in the field of education. Local governments still have to review the increase in integrity disclosure on websites and their real-life implementation to improve integrity and fight corruption in Indonesia.


2015 ◽  
Vol 4 (2) ◽  
pp. 72-86
Author(s):  
Manzoor Ahmed

This paper provides a background to the on-going discourse on post-2015 global development agenda. It mentions key points from the UN Secretary General’s report on MDG progress and the process of formulating the future development agenda. The recommendations of the High Level Panel on post-2015 agenda and the work of the Sustainable Development Solutions Network (SDSN) are examined from the perspective of Education for Rural Transformation (ERT). It is concluded that the premise and rationale of ERT has received scant attention in the future development agenda discourse. The arguments regarding the pertinence of ERT in combating poverty and promoting sustainable development are noted, drawing on the recent UNESCO- INRULED study on this topic. 


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