scholarly journals Emerging CO2-Mineralization Technologies for Co-Utilization of Industrial Solid Waste and Carbon Resources in China

Minerals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 274
Author(s):  
Junlin Meng ◽  
Wenjie Liao ◽  
Guoquan Zhang
Keyword(s):  
Solid Waste ◽  
Current Knowledge ◽  
Coal Fly Ash ◽  
Steel Slag ◽  
Process Intensification ◽  
Current Status ◽  
Industrial Solid Waste ◽  
Industrial Sectors ◽  
Chemical Sequestration ◽  
Co2 Mineralization

CO2 mineralization (aka mineral carbonation) is a promising method for the chemical sequestration of CO2 via reaction with oxides of alkaline or alkaline-earth metals to form carbonates. It has documented advantages over similar technological solutions to climate change. The huge amount of industrial solid waste, as a serious environmental issue confronted by China, can provide additional alkalinity sources for CO2 mineralization. In this study, we present an overview of the latest advances in the emerging technologies of CO2-mineralization via industrial solid waste in China, from the perspective of both theoretical and practical considerations. We summarize the types of industrial solid waste that are used (mainly coal fly ash, steel slag, phosphogypsum, and blast furnace slag) and the technological options available in the literature, with an emphasis on the discussion of the involved process-intensification methods and valuable chemicals produced. Furthermore, we illustrate the current status of pertinent policies, and research and development activities in China. Finally, we identify the current knowledge gaps, particularly in understanding the overall sustainability performance of these CO2-mineralization technologies, and indicate that the technical, economic, and environmental challenges of promoting and commercializing these technologies for the co-utilization of industrial solid waste and carbon resources call for, amongst other things, more joint efforts by chemists, chemical engineers, and environmental scientists, and more feedback from the energy and industrial sectors.

Current Status Analysis and Preventive Countermeasures on Industrial Hazardous Waste in Chongqing, China

2011 ◽  
Vol 414 ◽  
pp. 191-197
Author(s):  
Ying Zhu ◽  
Li'ao Wang ◽  
Jia Xiang Li
Keyword(s):  
Solid Waste ◽  
Hazardous Waste ◽  
Pollution Prevention ◽  
Ecological Environment ◽  
Current Status ◽  
Prevention Measures ◽  
Industrial Solid Waste ◽  
Chongqing Municipality ◽  
The Status ◽  
Status Analysis

Large amounts of industrial hazardous waste (IHW) are generated with the rapid economicgrowth in Chongqing Municipality. The generation of IHW was 355994.12t in 2010 and made up 1.25% of industrial solid waste (ISW). Huge varieties and complex components of IHW make it difficulty in its management, which causing serious environmental problems. In this paper, the status of IHW generation, disposal and management was analyzed from 2006 to 2010. Moreover, the pollution prevention measures are proposed for the purpose of protecting the ecological environment

Novel Cementious Materials from Industrial Solid Waste for Silt Soil Solidification

2010 ◽  
Vol 150-151 ◽  
pp. 711-718
Author(s):  
Guo Hua Xie ◽  
He Qing Du ◽  
Shu Jing Zhu ◽  
Yong Jie Xue
Keyword(s):  
Compressive Strength ◽  
Blast Furnace ◽  
Solid Waste ◽  
Blast Furnace Slag ◽  
Steel Slag ◽  
Hydration Product ◽  
Cement Clinker ◽  
Unit Weight ◽  
Industrial Solid Waste ◽  
Furnace Slag

Four kinds of industrial solid waste, granulated blast furnace slag (GBFS), electric furnace steel slag (EFSS), semi-dry flue gas desulfurization slag (FGDS) and gypsum were activated by mechanochemistry to prepare a novel kind of cementious material, DA type soil solidification agent (DA agent). Compared to the traditional cementious materials, this paper evaluated DA agent used in silt soil solidification project. Test results showed that DA-4 was prepared with adding the 40% CFBA, 39% GBFS, 11% OPC clinker and 10% gypsum by mill and more superior in material characteristics. It was found that compressive strength of DA-4 paste and mortar specimens at 28-days cured age were 46.0 and 27.3 MPa respectively; 5% of DA-4 was used to stabilize the silt soil in lab and the maximum dry unit weight, optimum moisture content, unconfined compressive strength and CBR value were 1.754 g/cm3, 15.35%, 1.15 MPa and 95.5% respectively. The hardening mechanism of prepared cementious materials is explained by two points: the sulfite or sulfate activation on alkali blast furnace slag; and the hydration product produced from cement clinker hydration process. Besides test programs of the trial pavement section in site showed that stabilized and solidified silt soils by DA-4 can meet the requirement of subgrade of pavement for strength and stiffness.

Current Status of Knowledge and Awareness of Diabetes Mellitus in Saudi Arabia

2020 ◽  
Vol 16 ◽  
Author(s):  
Asirvatham Alwin Robert ◽  
Ahmad Dakeel Al Awad ◽  
Mohamed Abdulaziz Al Dawish
Keyword(s):  
Diabetes Mellitus ◽  
Saudi Arabia ◽  
Disease Risk ◽  
Current Knowledge ◽  
Adult Population ◽  
Management Training ◽  
Control Measures ◽  
Current Status ◽  
Treatment Modalities ◽  
The Government

Abstract: Diabetes mellitus (DM) is a chronic disease, and the complications may be life-threatening; however, with proper treatment and control measures, it can be very well-managed. Self-management training and education of diabetes are critical in diabetes care and management. It is essential that patients with diabetes must have a comprehensive understanding of the nature of the disease, risk factors, complications, and possible treatment modalities to attenuate the complications. Over the last few years, DM in Saudi Arabia has been rapidly growing at an alarming rate. It has affected around one-fifth of the adult population, and by 2030, the numbers are predicted to rise further and exceed more than double the present number. An estimated tenfold increase has been reported over the past three decades in Saudi Arabia. However, there has not been much research focusing on understanding the knowledge and awareness of DM in Saudi Arabia as compared to developed nations. This review aims to present an overview of the current knowledge and awareness level of DM among the population of Saudi Arabia through an extensive review of the currently available literature. The review findings could be of immense assistance to the government, healthcare systems, educational institutions, and researchers to develop evidence-based programs, policies, and guidelines towards increasing the knowledge and awareness about diabetes and its management, so that early detection and management can be ensured to control the escalating burden of diabetes, in Saudi Arabia.

scholarly journals SWAN platform: A web-based tool to support the development of industrial solid waste reuse business models

2021 ◽  
pp. 0734242X2198941
Author(s):  
Athanasios Angelis-Dimakis ◽  
George Arampatzis ◽  
Tryfonas Pieri ◽  
Konstantina Solomou ◽  
Panagiotis Dedousis ◽  
...  
Keyword(s):  
Solid Waste ◽  
Industrial Waste ◽  
Business Models ◽  
Web Based ◽  
Matching Algorithm ◽  
Waste Reuse ◽  
Industrial Solid Waste ◽  
Business Cases ◽  
Industrial Unit

The SWAN platform is an integrated suite of online resources and tools for assessing industrial symbiotic opportunities based on solid industrial waste reuse. It has been developed as a digital solid waste reuse platform and is already applied in four countries (Greece, Bulgaria, Albania and Cyprus). The SWAN platform integrates a database with the spatial and technical characteristics of industrial solid waste producers and potential consumers, populated with data from these countries. It also incorporates an inventory of commercially implemented best practices on solid industrial waste reuse. The role of the SWAN platform is to facilitate the development of novel business cases. Towards this end, decision support services, based on a suitable matching algorithm, are provided to the registered users, helping them to identify and assess potential novel business models, based on solid waste reuse, either for an individual industrial unit (source/potential receiver of solid waste) or a specific region.

scholarly journals Towards Deep Decarbonisation of Energy-Intensive Industries: A Review of Current Status, Technologies and Policies

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2408
Author(s):  
Anissa Nurdiawati ◽  
Frauke Urban
Keyword(s):  
Technological Development ◽  
Steel Production ◽  
Political Support ◽  
Current Status ◽  
Low Carbon ◽  
Price Support ◽  
Reference Case ◽  
Technological Trajectories ◽  
Industrial Sectors ◽  
Energy Intensive Industries

Industries account for about 30% of total final energy consumption worldwide and about 20% of global CO2 emissions. While transitions towards renewable energy have occurred in many parts of the world in the energy sectors, the industrial sectors have been lagging behind. Decarbonising the energy-intensive industrial sectors is however important for mitigating emissions leading to climate change. This paper analyses various technological trajectories and key policies for decarbonising energy-intensive industries: steel, mining and minerals, cement, pulp and paper and refinery. Electrification, fuel switching to low carbon fuels together with technological breakthroughs such as fossil-free steel production and CCS are required to bring emissions from energy-intensive industry down to net-zero. A long-term credible carbon price, support for technological development in various parts of the innovation chain, policies for creating markets for low-carbon materials and the right condition for electrification and increased use of biofuels will be essential for a successful transition towards carbon neutrality. The study focuses on Sweden as a reference case, as it is one of the most advanced countries in the decarbonisation of industries. The paper concludes that it may be technically feasible to deep decarbonise energy-intensive industries by 2045, given financial and political support.

Sign in / Sign up

Export Citation Format

Share Document