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Polymer concentration in watertreatment & effluent

Polymers are often used in wastewater treatment processes to enhance removal of suspended solids and other contaminants.

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 (for example on membranes), economical issues and the impact on the environment (ex polymer loads in effluent).

Polymer concentration in watertreatment & effluent
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Challenges caused by polymers

Even though polymers play a crucial role in enhancing the efficiency of wastewater treatment processes, usage in treatment-processes also introduces challenges and issues:

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

  • Environmental concerns when polymers are released into nature

  • 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

Adding polymers to one stage of your water treatment process will affect subsequent stages, and might eventually even cause environmental concerns when the polymers are discharged into the environment.

Monitoring polymers to mitigate issues

To mitigate potential problems, it's crucial to carefully monitor and control the dosage of polymers 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 these challenges.

Olpas has sensors available to monitor the watertreatment process, and sensors for monitoring residual polymers during different stages of the dewatering process, both in high concentration or low concentrations.

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