Study on the Countermeasures of SO2 Emission Reduction in Chengdu Economic Circle

2013 ◽  
Vol 807-809 ◽  
pp. 1388-1396
Author(s):  
Wen Yong Wang ◽  
Bo Jun Ke ◽  
Gao Ping Fu
Keyword(s):  
Air Quality ◽  
Chemical Industry ◽  
Power Plants ◽  
Building Materials ◽  
Thermal Power ◽  
Ambient Air ◽  
Average Concentration ◽  
National Standard ◽  
Thermal Power Plants ◽  
Industrial Enterprises

Based on a detailed survey on the source and volume of SO2 emission over Chengdu economic circle, the third-generation air quality model CMAQ is adopted for simulating the concentration of SO2 in the air over Chengdu Economic Circle. The results show that the hourly average concentration, daily average concentration and annual average concentration of SO2 in air exceed the limit of national standard, and the affected areas respectively account for 0.12%, 0.18% and 0.03% of the total area of the economic circle. Meanwhile, according to the result of calculation, the SO2 emissions of thermal power plants, chemical industry, building materials plants and industrial area sources make the largest contribution to the SO2 concentration in the air, with ratios of 36.15%, 18.67%, 11.81% and 8.34% respectively. thus,main measures to reduce emissions of SO2 in Chengdu economic circle are proposed as follows: focusing on the control of the emissions of SO2 from industrial enterprises, especially in the thermal power plants, chemical industry, building materials plants as well as industrial boilers; joint prevention and control measures should be implemented between the cities, so as to reduce the interaction caused dy emissions of SO2. With the application of the above measures, the total SO2 emissions can be reduced by 50% and the concentration of SO2 in the air can meet with the Class II of national ambient air quality Standard.

Comparative Study Regarding Atmospheric SO2 Content in Rovinari and Turceni Areas

2017 ◽  
Vol 68 (10) ◽  
pp. 2248-2255
Author(s):  
Camelia Capatina ◽  
Daniela Cirtina
Keyword(s):  
Air Quality ◽  
Sulfur Dioxide ◽  
Nitrogen Oxides ◽  
Power Plants ◽  
Fossil Fuels ◽  
Thermal Power ◽  
Ambient Air ◽  
Cold Season ◽  
Thermal Power Plants ◽  
Limit Values

The goal of this research study is to compare the air quality of two urban locations from Targu-Jiu County namely Rovinari and Turceni. Measurements of SO2 content with automatic analysers were used as a criterion to asssess the air quality. Rovinari and Turceni areas were chosen for this study due to the fact that there are located two thermal power plants considered high stationary sources with an important contribution to regional and global pollution by sulfur dioxide, nitrogen oxides and dust. Sustainable development of fossil fuel power plants cannot be done without the use of technology to limit or eliminate environmental pollution. Studies regarding determination of SO2 content in the monitored areas were performed from January to December 2014. By interpreting the results obtained it can be concluded that the concentrations of sulfur dioxide in the ambient air are below the limit value set in legislation. This is mainly due to the developing of the programs for the progressive reduction of annual emissions of sulfur dioxide, nitrogen oxides and dust which was set up by operators of thermal power plants in order to comply with emission limit values. The high level of SO2 concentration in cold season is attributed to intensifying the burning of fossil fuels for household activities.

TRACE ELEMENT ANALYSIS OF FLY ASH BY PIXE

1999 ◽  
Vol 09 (03n04) ◽  
pp. 417-422 ◽  
Author(s):  
V. VIJAYAN ◽  
S. N. BEHERA
Keyword(s):  
Fly Ash ◽  
Trace Element ◽  
Power Plants ◽  
Building Materials ◽  
Thermal Power ◽  
Trace Element Analysis ◽  
Chemical Properties ◽  
Solid Material ◽  
Thermal Power Plants ◽  
Element Analysis

Fly ash is a major component of solid material generated by the coal-fired thermal power plants. In India the total amount of fly ash produced per annum is around 100 million tonnes. Fly ash has a great potential for utilization in making industrial products such as cement, bricks as well as building materials, besides being used as a soil conditioner and a provider of micro nutrients in agriculture. However, given the large amount of fly ash that accumulate at thermal power plants, their possible reuse and dispersion and mobilization into the environment of the various elements depend on climate, soils, indigenous vegetation and agriculture practices. Fly ash use in agriculture improved various physico-chemical properties of soil, particularly the water holding capacity, porosity and available plant nutrients. However it is generally apprehended that the application of large quantity of fly ash in fields may affect the plant growth and soil texture. Hence there is a need to characterize trace elements of fly ash. The results of trace element analysis of fly ash and pond ash samples collected from major thermal power plants of India by Particle Induced X-ray Emission (PIXE) have been discussed.

Utilization of Waste from Thermal Power Plants in High Performance Materials’ Production

2020 ◽  
Vol 1011 ◽  
pp. 109-115
Author(s):  
Inna Maltseva ◽  
Svetlana Kurilova ◽  
Alexey Naumov
Keyword(s):  
Environmental Pollution ◽  
Waste Disposal ◽  
High Performance ◽  
Power Plants ◽  
Building Materials ◽  
Thermal Power ◽  
Environmental Problems ◽  
Thermal Power Plants ◽  
Operational Characteristics

One of the effective ways to solve the environmental problems of the region at present is the waste disposal from Novocherkasskaya TPP, one of the largest sources of environmental pollution. The solution to this problem is associated with the integrated use of ash and slag mixtures components in the effective building materials’ production. On the TPP waste basis, the authors obtained structural and heat-insulating concrete with enhanced physical, mechanical and operational characteristics.

scholarly journals Using thermal power plants waste for building materials

2017 ◽  
Vol 87 ◽  
pp. 092010 ◽  
Author(s):  
R S Feduik ◽  
A K Smoliakov ◽  
R A Timokhin ◽  
V O Batarshin ◽  
Yu G Yevdokimova
Keyword(s):  
Power Plants ◽  
Building Materials ◽  
Thermal Power ◽  
Thermal Power Plants

scholarly journals Source influence on emission pathways and ambient PM<sub>2.5</sub> pollution over India (2015–2050)

2017 ◽  
Author(s):  
Chandra Venkataraman ◽  
Michael Brauer ◽  
Kushal Tibrewal ◽  
Pankaj Sadavarte ◽  
Qiao Ma ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Air Quality ◽  
Urban Areas ◽  
Power Plants ◽  
Thermal Power ◽  
North India ◽  
National Standard ◽  
Management Scenarios ◽  
Agricultural Residue ◽  
Future Economic Development

Abstract. India currently experiences degraded air quality, with future economic development leading to challenges for air quality management. Scenarios of sectoral emissions of fine particulate matter and its precursors were developed and evaluated for 2015–2050, under specific pathways of diffusion of cleaner and more energy efficiency technologies. The impacts of individual source-sectors on PM2.5 concentrations were assessed through GEOS-Chem model simulations of spatially and temporally resolved particulate matter concentrations, followed by population-weighted aggregation to national and state levels. PM2.5 pollution is a pan-India problem, with a regional character, not limited to urban areas or megacities. Under present-day emissions, levels in most states exceeded the national PM2.5 standard (40 µg/m3). Future evolution of emissions under current regulation or under promulgated or proposed regulation, yield deterioration in future air-quality in 2030 and 2050. Only under a scenario where more ambitious measures are introduced, promoting a total shift away from traditional biomass technologies and a very large shift (80–85 %) to non-fossil electricity generation was an overall reduction in PM2.5 concentrations below 2015 levels achieved. In this scenario, concentrations in 20 states and six union territories would fall below the national standard. However, even under this ambitious scenario, 10 states (including Delhi) would fail to comply with the national standard through to 2050. Under present day (2015) emissions, residential biomass fuel use for cooking and heating is the largest single sector influencing outdoor air pollution across most of India. Agricultural residue burning is the next most important source, especially in north-west and north India, while in eastern and peninsular India, coal burning in thermal power plants and industry are important contributors. The relative influence of anthropogenic dust and total dust is projected to increase in all future scenarios, largely from decreases in the influence of other PM2.5 sources. Overall, the findings suggest a large regional background of PM2.5 pollution (from residential biomass, agricultural residue burning and power plant and industrial coal), underlying that from local sources (transportation, brick kiln, distributed diesel) in highly polluted areas.

scholarly journals Modern trends in the development of the construction industry in the production of building materials

Technobius ◽  
2021 ◽  
Vol 1 (3) ◽  
pp. 0003
Author(s):  
Aliya Aldungarova ◽  
Kapar Aryngazin ◽  
Vladimir Larichkin ◽  
Assem Abisheva ◽  
Kamilla Alibekova
Keyword(s):  
Compressive Strength ◽  
Construction Industry ◽  
Power Plants ◽  
Building Materials ◽  
Moisture Absorption ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Ash And Slag Waste ◽  
Slag Waste ◽  
Construction Product

The paper describes the technology of manufacturing a construction product by vibrocompression using ash and slag waste from thermal power plants in the Pavlodar region. The task of the experimental research was to obtain a hollow wall stone based on ash and slag waste with a strength grade that is not inferior to products made according to the traditional recipe. The obtained samples with different ratios of components in the mixture were investigated for compressive strength, moisture absorption, frost resistance. It has been established that when ash and slag waste are added to the composition of the concrete mixture in an amount of up to 35 % of the mass of dry components, the strength characteristics of the hollow wall stone correspond to the selected brand

scholarly journals CONTRADICTION ASH-AND-SLAG OF TPP

2015 ◽  
Vol 3 (1) ◽  
pp. 53-56
Author(s):  
Кирил Безгласный ◽  
Kiril Bezglasnyy ◽  
Роман Скориков ◽  
Roman Skorikov ◽  
Артем Шаля ◽  
...  
Keyword(s):  
Fly Ash ◽  
Portland Cement ◽  
Power Plants ◽  
Building Materials ◽  
Thermal Power ◽  
Raw Material ◽  
Industrial Scale ◽  
Thermal Power Plants

This article shows the obstacles of using thermal power plant’s ash waste on an industrial scale. The results of determining the activity of fly ash and hydroremoval ash in a mixture with Portland cement are given. Schemes of translation ash from the category of waste with heterogeneous characteristics in the raw material with stable properties are offered. The most rational ways of using ash from thermal power plants in building materials are presented

Sign in / Sign up

Export Citation Format

Share Document