What type of pollution does thermal energy production cause?

Introduction What are the types of pollution caused by thermal energy production? The person above only knows one, but not the other. Although the technology of desulfurization and dust removal is relatively mature, the pollution of thermal power plants is not small a

What type of pollution does thermal energy production cause?

I only know one thing upstairs, but I don't know the other.

Although the desulfurization and dust removal technology is relatively mature, the pollution caused by power plants thermal is not minimal. of coal is too large. A 2 million A kW power plant consumes more than 10,000 tons of coal per day at full power. Even according to the relatively advanced desulfurization efficiency of 95%, sulfur dioxide emissions are still very large, reaching approx. 5,000 t/year (coal with 1% sulfur).

In addition to sulfur dioxide, the main air pollutants from thermal power plants include nitrogen dioxide and smoke.

In addition, there are also water pollution emissions such as hot wastewater, water treatment wastewater, domestic wastewater and initial rainwater, noise pollution, etc.< /p>

The reason why the drainage ofthermal power plants is wastewater and not sewage means that the water quality is not seriously polluted.

The wastewater of thermal power plants is mainly caused by the increase of the water temperature. Yes, because the drainage water from thermal power plants is cooling water. the quality is not much different from the incoming water. One is that the gases dissolved in the water are reduced, and the other is the anti-scaling agent added to prevent scale. This dose is very low.

Main components: This type of wastewater contains a large amount of suspended solids, ash, high levels of salt and some organic matter

Examples of treatment are following:

p>First, use microfiltration to remove any particles suspended in the water. The mass fraction is 99% BOD, 98% COD, 73% total nitrogen and 17% total phosphorus. At the same times, the total number of bacterial colonies. the water is reduced to 3 to 4/L. Then acid is added to lower the pH to remove CO2, and finally it is desalinated by NF to reach boiler water quality. The Eraring Thermal Power Station at the Australian Pacific Power Station currently uses NF to treat this type of wastewater. It treats 1,000 to 15,000 m3 of wastewater every day, which not only reduces the load on the municipal water supply system, but also saves thermal energy. plant $800,000 in operating costs each year. The thermal power plant is preparing to expand its electricity production, and its water consumption will also increase accordingly. It is estimated that by 2010, the amount of treated wastewater will reach 5,000 m3/d, and the benefits will be extremely considerable.

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