scholarly journals Radioactivity of waste materials coming from the largest power plants in Poland

2019 ◽  
Vol 100 ◽  
pp. 00051
Author(s):  
Aneta Łukaszek-Chmielewska ◽  
Martin Girard ◽  
Barbara Piotrowska ◽  
Karol Wojtkowski ◽  
Krzysztof Isajenko ◽  
...  
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Road Construction ◽  
Radioactive Isotopes ◽  
Waste Materials ◽  
Radiological Protection ◽  
Central Laboratory ◽  
Power Station ◽  
Public Facilities ◽  
Radioactive Concentration

The Central Laboratory of Radiological Protection together with 30 other laboratories in Poland is involved in the analysis of radioactivity among indirect products of combustion (ashes and slags) coming from polish power plants and thermal power station. Systematic studies are conducted on the concentrations of natural radioactive isotopes in waste materials obtained from the power industry, and their results are recorded in a database. This database is supervised by the Central Laboratory for Radiological Protection. The database already contains 46300 by now and the oldest results come from the eighties. In this article the results of studies on radioactive concentration of natural radioisotopes 40K, 226Ra and 228Th in waste materials coming from the largest power plants in our country are presented. Furthermore an analysis was carried out on the possibility to use the selected waste materials (ashes and slags) in housing construction, road construction and in public facilities buildings, considering the values of activity indexes f1 and f2.

Construction of Road Embankment with Waste Materials

2015 ◽  
Vol 725-726 ◽  
pp. 596-601 ◽  
Author(s):  
Miloš Šešlija ◽  
Nebojša Radović ◽  
Nikolay Vatin
Keyword(s):  
Fly Ash ◽  
Power Plants ◽  
Thermal Power ◽  
Road Construction ◽  
Waste Materials ◽  
Thermal Power Plants ◽  
Natural Materials

Fly ash represents a residue that occurs as a product of burning finely milled particles of coal in thermal power plants. The fly ash in the construction of embankments in road construction can be used with or without the addition of binders. For the construction of embankment from the ashes, aside embankments (trapezoid shape) are placed. Justification of this study is the fact that so huge amounts of this material are left aside, while there are great possibilities for using of natural materials in the construction of roads.

scholarly journals Sustainable Coal Mining and Electricity Generation: With Special Reference to Dahanu Thermal Power Station

2020 ◽  
Vol Special Issue (1) ◽  
Author(s):  
Sugat Tajane ◽  
Manika Kamthan
Keyword(s):  
Coal Mining ◽  
Thermal Power Station ◽  
Power Plants ◽  
Thermal Power ◽  
Mining Industry ◽  
Resource Exploitation ◽  
Power Station ◽  
Mining Operations ◽  
Environment And Health ◽  
Mineral Development

Mining Industry is often tagged as a polluting sector since it involves since it involves extensive resource exploitation by unsustainable methods. The techniques involved in mining cause tremendous destruction to the environment and health of people living in nearby areas. There is a growing consensus on sustainable and efficient mineral development which will avoid the clash between economic and environmental interests. Deployment of advanced and sustainable technological solutions in the entire mining process, fixing the gaps in its regulatory mechanisms and learning from the successes of specific domestic and international mining operations are certain solutions that have the capacity this sector more productive. The paper provides insights into the problems of mining sector and possible solutions to overcome these problems. It also provides examples of certain best practices adopted by mining corporations for sustainable coal mining. The paper also explores various methods and technologies which can be adopted by Thermal Power Plants to reduce their emissions and simultaneously conserve environment. An empirical study of Dahanu Thermal Power Station located in state of Maharashtra of India has been undertaken for this purpose to study the modern technologies adopted by them to lower their emission levels.

Advanced Gas Turbine Technology for Sendai Thermal Power Station, Unit No. 4

2011 ◽  
Author(s):  
Sadahiro Ohno ◽  
Hiroyuki Yamazaki ◽  
Naoki Hagi ◽  
Hidehiko Nishimura
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Gas Turbine ◽  
Thermal Power Station ◽  
Thermal Efficiency ◽  
Power Plants ◽  
Thermal Power ◽  
Power Station ◽  
Advanced Technologies ◽  
Station Unit

Worldwide environmental concerns are placing center focus on effective utilization of energy and carbon dioxide emission reductions. The power generation industry has engaged in the replacement of existing aged thermal power plants with state-of-the-art natural gas fired power plants capable of achieving considerable reductions in energy consumption and emissions of green house gases. The replacement of three exiting 175MW heavy oil and coal-firing power plants with a highly effective 446MW gas-firing combined cycle power plant owned and operated by Tohoku Electric Power Company is one example of this effort. The construction of the new Sendai thermal power station, Unit No.4 started in November, 2007 achieving commercial operation in July, 2010. Mitsubishi Heavy Industries most recent 50Hz F class gas turbine upgrade, the M701F4 was adopted for this project. This engine is based on the successful M701F3 gas turbine with a 6% air flow increase and a slight bump of the turbine inlet temperature in order to achieve better thermal efficiency and more power output. The application of these advanced technologies resulted in a plant thermal efficiency of approximately 58% LHV of the new unit from the original 43% of the previous coal-firing units. The application of these advanced technologies and the use of natural gas resulted in a 2/3 carbon-dioxide emissions reduction.

scholarly journals Separation of Cenospheres from Fly Ashes by Floatation Method

2010 ◽  
Vol 13 (1-2) ◽  
pp. 89 ◽  
Author(s):  
L.M. Manоcha ◽  
K.A. Ram ◽  
S.M. Manocha
Keyword(s):  
Fly Ash ◽  
Power Plants ◽  
Thermal Power ◽  
Ceramic Particle ◽  
Composition Analysis ◽  
High Concentration ◽  
Fly Ashes ◽  
Power Station ◽  
Different Types ◽  
Chemical Composition Analysis

Fly-ashes are non-combustible mineral residues which are produced from coal in thermal power plants. Four different types of fly ashes were collected from different power station in Gujarat. Characterization through SEM shows that fly ash contains cenosphere i.e. gas bubble containing ceramic particle independent of their bulk density. Floatation technique was used for the separation of cenosphere from fly ash. Two solvents with extremely different densities were used for the separation of cenospheres. All methods gave approximately yield of less than 1 % cenosphere in fly ash. Color of cenospheres varied from gray to almost white and the value of density range from 0.4 – 0.8 g/cc. Further, chemical composition analysis revealed that cenospheres do not contain any high concentration of hazardous elements.

scholarly journals Geopolymers based on plasma incineration waste as a material for circular economy

2021 ◽  
Vol 942 (1) ◽  
pp. 012008
Author(s):  
K Plawecka ◽  
B Figiela ◽  
A Grela ◽  
K E Buczkowska
Keyword(s):  
Circular Economy ◽  
Power Plants ◽  
Waste Treatment ◽  
Raw Materials ◽  
Thermal Power ◽  
Mineralogical Composition ◽  
Raw Material ◽  
Waste Materials ◽  
Treatment Technology ◽  
Incineration Plant

Abstract Plasma waste treatment technology is one of the promising methods of reducing problematic waste, but the technology itself create other kind of waste that must be effectively used to recognize this technology as a suitable for circular economy. The aim of the article is to show the possibility of using waste materials from a plasma incineration plant as a raw material for the production of geopolymeric materials. The samples were made based on waste from plasma incineration plant in Liberec (Czech Republic), fly ash from thermal power plants in Skawina (Poland) and sand mixed with an aqueous chemical solution. Next they mechanical properties, microstructure and mineralogical composition have been investigated. The results show the combination of these raw materials can increase the strength of the material and, consequently find applications in the utilization of plasma incineration waste. The article show the geopolymerization could be effective process for using waste materials from a plasma incineration plant as a raw material for creating the products for construction industry.

Study on the Management Model of Pumped Storage Power Station

2013 ◽  
Vol 860-863 ◽  
pp. 2622-2626
Author(s):  
Yan Qing Li ◽  
Chi Dong ◽  
Hao Shan Li ◽  
Zhi Fei Liang
Keyword(s):  
Power Generation ◽  
Nuclear Power ◽  
Power Plants ◽  
Business Models ◽  
Thermal Power ◽  
Management Model ◽  
Environmental Benefit ◽  
Power Station ◽  
The Government ◽  
Pumped Storage

Power generation business models relate to the sustainable development of generation companies. This paper proposes an improved united lease management model for pumped storage power stations. Grid company, power generation companies (thermal power plants and nuclear power plants), and the government department jointly bear the rental fee. The amount of lease fees is determined according to the benefit of each renter. This paper conducted a case study of Huizhou Pumped Storage Power Station. The united power system simulation and auxiliary services compensation were applied to calculate the generation benefit, environmental benefit and dynamic benefit. The results suggest that the total incomes of Huizhou Pumped Storage Power Station are increased and the rental fee is fair and reasonable, indicating the rationality and effectiveness of this new management model.

scholarly journals Actors Strategies on Sea Resources Utilization in Palabuhanratu-Jawa Barat

2019 ◽  
Vol 7 (2) ◽  
pp. 127-136
Author(s):  
Eva Royandi ◽  
Arif Satria
Keyword(s):  
Social Identity ◽  
Social Relationships ◽  
Power Plants ◽  
Thermal Power ◽  
Marine Resources ◽  
Control Rights ◽  
Power Station ◽  
Fisheries Resources ◽  
Relational Resources ◽  
Transportation Development

This study aims to (1) analyze the authority of actors to access (control) rights-based marine resources, (2) to analyze the power of actors to access marine resources based on structures and relational resources. This Research was conducted at seawater of Palabuhanratu, Sukabumi, West Java. We use qualitative methods in the present study. The results showed that among local fishers, immigrant fishers (settle), outside fishers (not settle), and managers of the thermal power station (PLTU) have different interests in using marine resources. The Fishers groups have an interest in utilizing marine and fisheries resources (including fishing areas and fish), while PLTU managers have interests in the construction of power plants, barge transportation (coal transportation), development of dams, construction of barge ship ports that buy 3 million seas. The approved PLTU activities must access fisheries against marine resources, coupled with the indication of PLTU waste pollution that harms fishers. The results of the analysis of rights-based licensing for each actor have legislation that is built on official law. The relations of the power's actors to access marine resources based on the structures and relational was held through types of power, i.e., technology, capital, markets, knowledge, authority, social identity and social relationships.

scholarly journals Increasing the Efficiency of the Use of Thermal Power Plants Waste in Road Construction and Repair

2019 ◽  
Vol 4 (4) ◽  
pp. 179-184
Author(s):  
Myroslav Malovanyy ◽  
◽  
Volodymyr Mozghovyi ◽  
Oleksandr Kutsman ◽  
Serhii Baran ◽  
...  
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Road Construction ◽  
Thermal Power Plants
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