Does thermal power pollute the environment? Are coal fired power plants polluting?

As a person who has been working in thermal power for many years, I can say that the pollution of thermal power plants is not as high as imagined, but there are not as few electricity outlets as advertised. Take dust as an example, yes, now all power plants are put into dust removal equipment, and the efficiency of dust removal equipment is also relatively high, generally above, but please note that there is a base problem here, that is, how much coal to burn in a year, taking 300,000 units as an example, coal consumption is about 400 grams, calculate. According to 1 year, 5500 hours of power generation is 300,000 kilowatts, 5500 hours, and 100 million kilowatt hours.

Equivalent to standard coal consumption of 100 million kilowatt hours 400 grams of kilowatt hours 1000000 6.6 million tons of coal, note that the coal here is standard coal.

That is to say, the so-called 7000 kcal coal, the actual coal burned is raw coal, which is generally higher than the standard coal, so the actual coal consumption may be higher). The ash content of all kinds of coal is not the same, here according to the ash content of 8%, the annual dust emission to the air is 6.6 million *, about 1584 tons (about 4 tons per day), note that the dust discharged from the dust removal equipment is all less than the index, if you have been in the power plant for a long time, you can understand, although the chimney can not see the smoke, but the new car is not opened in the factory area, and it is also a layer of dust for a few days. Let's talk about sulfides.

Since the state has forced the desulfurization equipment, the desulfurization equipment of various power plants in China is relatively mature, but the desulfurization equipment accounts for the power of the plant, even if the national feed-in tariff has increased a little money to the desulfurization power plant, but now there are some power plants that can not open the desulfurization without desulfurization, anyway, the outside world does not come out, and the environmental protection bureau can deal with it (now the situation is slightly better, the industry has to cancel the bypass of desulfurization, that is to say, as long as the power is started, the desulfurization equipment must be opened, but there are always policies and countermeasures) As for the denitrification equipment, it can only be said that it is slowly becoming popular. Saying so much is just a brief introduction to the emissions of thermal power plants, but from the current point of view, thermal power generation is the dominant position in the long run, and there is no resource in China that can replace thermal power generation, so this emission situation will also exist for a long time, it can only be said that we have been working hard to save energy and reduce emissions.

Germany's nuclear power road can be said to be ups and downs, twists and turns, German nuclear power engineers always think that ushered in the dawn of nuclear power development, when they are poured cold water, Chernobyl water, Fukushima, it should be said that Germany's road to nuclear abandonment has long been foreshadowed. Although Germany will shut down all nuclear power in 2021, it does not say that it will not develop thermal power. Germany's current power structure is mainly renewable energy (we call it new energy), nuclear power and thermal power, and the proportion of nuclear power is less than 20%.

The first is new energy, mainly developing offshore wind power and gas-fired power plants (natural gas is mainly imported from Russia). The second is the development of clean thermal power, Germany's coal reserves are the second in the world, and it has not been exploited too much for reasons of strategic reserves. With the current German technology and the rigorous attitude of the Germans, it is absolutely appropriate to clean the construction and operation of thermal power plants.

The third is to import electricity from neighboring countries. Germany turned off its own nuclear power, but he went to buy electricity from the nuclear power of neighboring countries, and he was in a hurry. We don't produce nuclear power, we're just transporting electricity.

Why does China still use thermal power when it knows that it will cause certain pollutant emissions (the best technology also emits greenhouse gases)? Because thermal power is cheap, the retail electricity price in Germany in 2013 was about 29 euro cents 1 kilowatt-hour, which is about 1 yuan, while China's civil electricity is about 5 cents, and industrial and commercial electricity is more expensive, but the most expensive is about 1 yuan. The fluctuation of electricity prices will directly affect the cost of industrial and commercial activities, not to mention that the price of electricity rises by one dollar, or the price of electricity rises by one point, which will be directly reflected in our daily life.

It is difficult to analyze who is responsible for the most pollution from vehicle exhaust and thermal power emissions, and the emission standards of the two sides have different units of measurement, which is too laborious and lacks accuracy if you insist on calculating. <>

Serious, thermal power plant.

There is an emission of air pollutants to the environment, and there is a danger of polluting the environment.

1. Coal-fired thermal power plants will contain nitrogen oxides and nitrogen dioxide in their exhaust emissions.

Carbon monoxide, sulfur dioxide.

TSP, PM10, and other pollutants;

2. When the national standard is adopted, the environmental contact agency with CMA qualification will detect the pollutants in the exhaust gas emitted under normal coal-fired and heating conditions, and if it exceeds the standard, it will produce air pollution. It is subject to the management of the Environmental Protection Bureau in accordance with the law (Air Pollution Prevention and Control Law);

3. In accordance with energy conservation and emission reduction.

In the fuel, boiler, exhaust and other processes to strictly prevent pollution, as well as the approval system.

4. The current coal-to-electricity boiler is conducive to preventing environmental pollution caused by exhaust gas emissions.

Compared with hydropower plants and other types of power plants, thermal power plants have the following characteristics:

1. Flexible layout and installed capacity.

The size can be decided according to your needs.

2. The construction period is short, generally half or even shorter than that of the hydropower plant. The one-time construction investment is small, only about half of that of a hydropower plant.

3. Coal consumption is large, and coal for power generation accounts for about 25% of the country's total coal output, plus coal transportation costs and a large amount of water, its production costs.

It is 3-4 times higher than hydropower.

4. There are many power equipment, the control and operation of the generator set is complex, the power consumption and operation personnel of the plant are more than that of the hydropower plant, and the operating cost is high.

5. The steam turbine starts and stops for a long time, consumes a lot of money, and is not suitable for peak shaving power supply.

The above content reference: Encyclopedia - Thermal power plant.

If there is pollution in the thermal power plant, whether it is serious depends on the manufacturer's treatment method.

Due to their working principle, thermal power plants produce major emissions such as "noise, wastewater, exhaust gas, and waste residue".

Even if the noise is reduced by the chain, the noise will still be relatively loud nearby, and employees who work in the steam turbine position all year round must do an occupational health examination for noise once a year.

It is up to you to see how much your hearing is affected, whether it is necessary to take a break to regain your hearing, etc.

Exhaust gas is mainly sulfur-containing, although the state clearly stipulates that desulfurization must be discharged, but because the operating cost of environmental protection facilities is too high, therefore, whether the actual environmental protection facilities are really operating, needs to be studied.

Wastewater, under normal circumstances, will be discharged through the treatment process of "natural sedimentation, dosing, inclined plate pool" and other treatment processes, and this discharge port is generally discharged to the local large rivers and rivers, which is related to the entire county and city where the thermal power plant is located.

Waste residue, a good manufacturer, this can be reused, produce economic value, generally will.

Thermal power plant.

Pollution is severe. Thermal power generation is a power generation method that uses the heat energy generated by combustibles when burning, and converts it into electrical energy through the power generation power device, and the thermal power plant will emit some exhaust gases, waste liquids, etc., and various emissions have a certain degree of impact on the environment.

Are coal-fired power plants polluting?

Thermal power generation is the main mode of power generation in China, and it is also a developing country.

The most common way to generate electricity.

According to the different ways of power generation, thermal power generation can be divided into coal-fired steam turbine power generation, oil-fired steam turbine power generation, gas-steam combined cycle power generation and internal combustion engine power generation.

The power generation methods are: thermal power generation, nuclear power generation, hydropower generation, wind power generation, solar power generation, etc.