DOI: 10.1016/J.JCLEPRO.2008.04.007 Corpus ID: 153664654; A life-cycle assessment of Portland cement manufacturing: comparing the traditional process with alternative technologies
In addition to the generation of CO 2 the cement manufacturing process produces millions of tons of the waste product cement kiln dust (CKD) ... Therefore, in an attempt to reduce uncertainty this study presents a cradle-to-gate life-cycle assessment of several cement products. Since cement manufacturing is the most energy and …
environment. An alternative to the Environmental Impact Assessment is the Environmental and Social Impact Assessment (ESIA), where the environmental and social impacts assessments are merged into one assessment process. To ensure coverage of both environmental and social issues, this Technical Note refers to the ESIA.
Dust emissions are one of the most significant impacts of cement manufacturing and associated with handling and storage of raw materials (including crushing and grinding of raw materials), solid fuels, transportation of materials (e.g. by trucks or conveyor belts), kiln systems, clinker coolers, and mills, including clinker and limestone burning and …
The biggest benefit is volume leverage while the biggest risk is alienating the plants from the decision-making process. The direct impact of refractories on cement manufacturing costs is less than 2% provided the prod-uct performs well.If the refractory lining fails prematurely, then cement manufacturing costs go up considerably.
Cement is a vital material used in the construction of concrete buildings. World annual cement demand is increasing rapidly along with the improvement in infrastructure development. However, cement manufacturing industries are facing challenges in reducing the environmental impacts of cement production. To resolve this …
This study examines the natural radioactivity in cements and raw materials used in cement production industry with the aim to assess the population exposure to …
Determination of dosimetric quantities. To assess the radiological hazard from 226 Ra, 232 Th, and 40 K in cement, it is useful to calculate the radium equivalent …
Cement manufacturing is one of the most energy intensive processes and is accountable for substantial pollutant emissions. Increasing energy costs compel stakeholders and researchers to search for alternative options to improve energy performance and reduce CO2 emissions. Alternative fuels offer a realistic solution …
• Indian cement industry is one of the most growing industrial sector. • India's per capita cement consumption is below than the world average per capita cement consumption. • There are many new cement manufacturing units and cement grinding units are in progress in India. • Still the reliable and acceptable LCA are not
Purpose Due to the rapid expansion of the construction industries, cement production is ever-increasing worldwide and maintaining the qualities of the local cement became vital for safe and durable structures. In this regard, the radiometric assessment of cement plays a significant role. Method The specific activities of the naturally occurring radionuclides …
Raw materials are used to produce the main cement elements (Mohsen, 2015) • Quarry The process of obtaining raw materials for cement manufacturing involves mining and quarrying natural materials ...
Abstract. Radiation Shielding Concrete plays a critical role in safeguarding against ionizing radiation, in nuclear power plants, medical facilities, and other radiation …
Due to the rapid expansion of the construction industries, cement production is ever-increasing worldwide and maintaining the qualities of the local cement …
PDF | On Mar 31, 2022, Tafa Negero Moti and others published Assessment of risk management practices in dangote cement factory, Ethiopia | Find, read and cite all the research you need on ResearchGate
Measurement(s) carbon dioxide emission process Technology Type(s) computational modeling technique Factor Type(s) cement production • clinker production • the emission factor of clinker Sample ...
SOMERVILLE, Mass.–Sublime Systems, developers of the only fossil-fuel-free, scalable, drop-in replacement for traditional cement in concrete, announced a screening life cycle assessment (LCA) validating its process can eliminate more than 90% of the global warming potential (GWP) of cement manufacturing, when compared to …
done to maintain the annual radiation exposure for the public at 1 mSv and mitigate radiation hazards. 2.6.3 External and Internal Hazard Index An individual's radiation exposure is contingent upon the levels of terrestrial radionuclides in the environmental matrix and the duration of time spent in the radiation area.
generated during the cement manufacturing process consist primarily of particulates from the raw and finished materials, and fuel combustion by-products. Particulate matter are emitted through the following stages: 1. Procurement of raw materials 2. Raw Milling - preparation of raw materials for the pyroprocessing system 3.
The article presents concentrations of natural radioactive radionuclides of radium ( 226 Ra), thorium ( 232 Th), and potassium ( 40 K) for 15 various types of …
In cement composites, the concentrations of natural radionuclides 226 Ra, 232 Th and 40 K were measured in compact samples. The secular equilibrium between …
Assessment of radioactivity and trace elements of cement … - RADIOACTIVITY CONCENTRATION AND DOSE … generated during the cement manufacturing process consist primarily of particulates from the raw and finished materials, and fuel combustion by-products. Particulate matter are emitted through the following stages: 1. Procurement of …
Among others, process developments (optimise and develop the existing process) and end-of-pipe solutions (adding emission reduction systems) are both of actions integrated in order to minimize the environmental …
To assess which manufacturing process is more sustainable at the lowest level of CO 2 emissions, the environmental impact of four different cement manufacturing scenarios was considered: business as usual BAU, Scenario 1 – energy efficient kiln process, Scenario 2–30% of thermal energy produced by alternative fuel, and Scenario …
Cement Manufacturing Process . by TIZITA MOGES, SELAMU ABULE & DEREJE ENDALAMAW ... In the burning zone, due to the high temperature and luminescence of the flame, the dominant mode of heat …
The combustion of fossil energy has resulted in the emission of a substantial quantity of greenhouse gases, leading to the occurrence of global warming and a cascade of climate-related issues. Among many …
Cement manufacturing is a significant industrial activity that plays a vital role in the construction sector. However, the process of cement production is associated with various environmental ...
The radioactivity and risk assessment of quarrying in Ewekoro Cement Factory a nd its environs has been carried out. The radionuclides in this present study are in the order 238 U <
In this paper LCA is used to evaluate the environmental impact of four cement manufacturing processes: (1) the production of traditional Portland cement, (2) blended cement (natural pozzolans), (3) cement where of waste cement kiln dust is recycled into the kiln process, and (4) Portland cement produced when cement kiln dust (CKD) …
Cement is a building material that is commonly used in construction worldwide and is known to contain varying levels of radionuclides and trace metals. It is obvious that radioactivity in cement poses an immediate source of radiation exposure to workers in the cement industry and general public once cement becomes an integral …
Download Citation | Assessment of CO2 capture technologies in cement manufacturing process | In this paper, an assessment of the viability of 3 CO2 capture technologies for the cement industry is ...
Based on the abovementioned factors and the need for human health protection, this study made a radiometric evaluation involving the activities of the natural radionu- clides …
