Does thermal energy production pollute the environment?

As someone who has been working in thermal power generation for many years, I would like to say that pollution from thermal power plants is not as high as people imagine, but it is not not as weak as many power outlets claim. Take the example of dust. Yes, all power plants now have dust collection equipment, and the efficiency of dust collection equipment is relatively high, generally above 99.7%. However, please note that there is a basic problem here, namely the burning of coal. in a year, how much should be burned? Taking a unit of 300,000 units as an example, the coal consumption is approximately 400 grams/degree. Based on electricity production of 5,500 hours per year, this corresponds to 300,000 kilowatts × 5,500 hours = 1.65 billion kilowatt hours, which is equivalent to standard coal consumption of 1.65 billion kilowattsatthours × 400 grams/kilowatt hour/1,000,000 = 6.6 million tons of coal. . Note that the coal here is standard coal (in other words, the so-called 7000 kcal coal actually burns raw coal, which is usually higher than standard coal, so the actual coal consumption may be more high). The ash content of different coals is different. Here, based on an ash content of 8%, the annual dust emission into the air is 6.6 million * 0.3% * 8%, or approximately 1,584 tonnes (approximately 4 tonnes per day). Note that the dust emitted by dust collection equipment is less than PM2.5. If you have been in a power plant for a long time, you will know that even if there is no smoke in the chimney, if a new car is left. in the factory without driving, a layer of dust will still remain for several days. Let's talk about sulfide. Since the State made the installation of equidesulfurization equipment, the desulfurization equipment of various domestic power plants is now relatively mature. However, desulfurization equipment accounts for the plant's power consumption. the price increases a little money for desulfurization power plants, this is always the case. Some power plants can activate desulfurization without activating desulfurization. Either way, it doesn't appear on the surface. All you need to do is deal with the Environmental Protection Bureau (. the situation is a little better now. The industry has forcibly canceled the desulfurization bypass, which means that as long as the current is on, desulfurization equipment must be installed, but there are always policies and countermeasures). equipment, it can only be said that it is slowly becoming popular. I just want to briefly present the emissions from thermal power plantss. However, from the current perspective, thermal power generation will play a dominant role in the long term. There is therefore no resource that can replace thermal energy production in China. This emission situation will also exist in the long term, we can only say that we have worked hard to save energy and reduce emissions.