“Paper” is a common everyday item in our lives. Paper is obtained through processing, and the papermaking industry itself is highly polluting, generating a significant amount of contaminated wastewater during production. To ensure the healthy development of the papermaking industry, it is crucial to do a good job in monitoring and treating wastewater from the papermaking industry, control wastewater discharge as much as possible, and ensure that indicators are compliant after monitoring and treatment before discharge.
Why is it important to treat and monitor wastewater from the papermaking industry? This is very important!
Wastewater and sewage are common in the papermaking industry. It is reported that organic matter in its wastewater accounts for 25% of the total organic content in China’s industrial wastewater, causing significant harm to the natural environment. The goal, of course, is to strive for zero discharge of wastewater and sewage as much as possible. Even if discharge is necessary, the wastewater and sewage should be treated, and online water quality monitoring should be carried out to assess the specific condition of the water and determine whether it meets standards based on relevant data. Doing so not only enhances the economic efficiency of the papermaking industry but also achieves the goal of energy conservation and emission reduction, ensuring water quality safety!
Among these, BOD is a common indicator in papermaking wastewater, and its levels are often high. (BOD Online Analyzers can be used for real-time detection of BOD in water.) Additionally, there are other pollutants that can cause pollution to the natural ecological environment. Therefore, it is essential to do a good job in wastewater treatment (such as removing impurities from the wastewater) and then test various indicators to ensure they are all compliant before discharge can be considered safe.
Wastewater recycling can be used to achieve zero discharge of papermaking wastewater, but some issues may still arise. For example, physical or chemical methods may lead to corrosion or the proliferation of microorganisms. There are various methods for treating papermaking wastewater (such as ultrafiltration membrane methods, reverse osmosis methods, etc.), and the choice depends on customer habits, preferences, or suitability. However, during the wastewater treatment process, it is important to remember that online water quality monitoring is indispensable, as it can determine whether the various indicators of water quality meet standards.
