what are the emissions?how control or reduce it?
it wont be long that we will put so much cement down that we will throw the earth off its axes and you wont have to ask these silly q anymore anyways so why bother
They are about the same as any fossil fueled power plant or boiler, and many other industrial processes. They normally burn coal, gas, oil, or coke to fire their kilns. They also must use precipitators, scrubbers, etc., to meet emissions regulations.
ONE REAL ANSWER: over 8% of the CO2 released worldwide 5% of the primary energy consumption The release of heavy metal, dust, NOx, SOx etc.. Nevertheless, large cement corporates are among the most environmentally responsible and are setting a lot of voluntary targets to clean the production on their own
johann got there before me... but absolutely right 8% CO2 emissions globally and 5% energy because to produce cement from to raw materials requires them to be heated to a high temperature - 1400 degrees Celcius (uses lots of energy) also the limestone decomposes on heating and being a carbonate gives off CO2 another factor is the raw materials and the cement itself are heavy and require energy to move them about therefore more CO2 another factor is the mining of the raw materials which causes noise and dust pollution as well as scaring the landscape and all the trucks required to move it are dangerous to the local population reducing CO2 emissions would require getting the energy from sustainable(renewable sources) OR radically changing building materials (i.e. rediscover the old ways) straw/ adobe etc
The cement industry has had a devastating effect on the mud and straw industry. The collateral damage inflicted when cement falls in running in the billions every year. The increased pollution from following the slow cement trucks is causing the ice caps to melt. Cement trucks should be allowed to drive through red light to keep the emissions low.
