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Industry Dynamics
Understand the Wastewater Treatment and Discharge Issues of Thermal Power Plants
Date:2025-11-28 Browse: 92

Electricity, like water, is an indispensable energy source in our daily life. From this, it can be imagined how significant the role of power plants is. In China, the main way of power generation is through thermal power plants. In this article, we will explore together the issues of wastewater treatment and discharge in thermal power plants. For thermal power plants to control the discharge of wastewater up to standard, it is first necessary to understand its sources and how to treat the wastewater from thermal power plants.

In the wastewater discharged from thermal power plants, acid and alkali are the main indicators, which mainly come from ion exchange treatment and condensate water purification treatment systems. Generally, the anion and cation beds, decarbonizers and other equipment in thermal power plants precisely form an ion exchange water treatment system, whose main purpose is to treat wastewater. However, after the plasma exchange resin fails, it needs to be regenerated with acid or alkali to restore its ionic capacity in water.

1.Every time the cation resin is regenerated, the discharged wastewater will be alkaline.

2.However, when the anion resin is regenerated, the amount of ions removed from the cation resin is twice that removed from the anion resin.

It is precisely for this reason that once these acidic and alkaline wastewater are mixed together and injected into water, the water quality is generally acidic.

Some other sewage produced in daily life. There is also domestic sewage in thermal power plants. If all these sewage are collected together and discharged directly, it will cause great pollution to the environment. In summer, it will also release some very unpleasant odors, seriously polluting the quality of the air.

At this point, in the process of treating wastewater from thermal power plants, online water quality monitoring is of great significance! Staff can use water quality detectors to monitor various indicators in the wastewater in real time to see if they have all met the standards before being discharged!