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Polymer concentration in the watertreatment process and effluent

The goal of adding polymers during wastewater treatment processes is to enhance the removal of suspended solids and other contaminants from the water.

Polymers are large molecules that can form bonds with particles in the water, causing them to clump together and settle more easily. This process, known as flocculation, improves the efficiency of sedimentation and filtration steps in wastewater treatment, leading to clearer water and more effective removal of pollutants.

But even during the watertreatment processes, polymers might cause concerns, because of their impact on the efficiency of the treatment-process, economical issues and impact on the environment.

Polymer concentration in the watertreatment process and effluent

Challenges caused by polymers

Even though polymers play a crucial role in enhancing the efficiency of wastewater treatment processes, they can also introduce challenges and issues:

  • Overdosing, which can result in the formation of larger, denser flocs that are difficult to settle or filter effectively

  • Foaming, which can interfere with clarifiers and filters

  • Concerns for downstream processes, where the polymers have a negative impact on the process

  • And environmentaly concerns when polymers are released into nature

Foaming (often caused by wrong polymer selection or overdosing) can negatively interferes with clarifiers and filters, reducing their effectiveness and requiring additional maintenance

Monitoring polymers to mitigate issues

To mitigate these problems, it's essential to carefully monitor and control the dosage of polymers, select the appropriate type of polymer for the specific wastewater characteristics, and optimize the treatment process to minimize any adverse effects.

Regular testing, process optimization, and adherence to environmental regulations can help in managing the challenges associated with polymer use in wastewater treatment.

Olpas has sensors available to monitor the watertreatment process, and sensors for monitoring residual polymers during the dewatering process.

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