Dewatering Polymer

The benefits associated with using polymers are quite simple; it acts as a thickening agent, producing larger chunks of soiled materials. And in so doing, it releases clear, sludge-free water.

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Description

When dewatering sludge, the use of polymer is necessary. Depending on the composition of the sludge, flocculants and/or coagulants may be needed to facilitate the process of solid particles separating and settling out from the water. There are a variety of sludge dewatering polymers that can be formulated to effectively separate the water from your sludge. The benefits associated with using polymers are quite simple; it acts as a thickening agent, producing larger chunks of soiled materials. And in so doing, it releases clear, sludge-free water.

Here are eight polymer dosage tips you should be aware of:

  1. One gallon of polymer will treat anywhere from 6,000 to 7,500 gallons of sludge.
  2. You’ll need four gallons of polymer to treat 30,000 gallons of sludge (enough to fill a Sludge Mate).
  3. According to a study performed by the Minneapolis Wastewater Treatment Plant, polymer doses increase and cake dryness decreases when the ratio of primary to secondary bio-solids goes from 50:50 to 30:70.
  4. Longer anaerobic bacteria digestion times can result in decreased polymer doses.
  5. Sludge with smaller particles tend to require more polymer.
  6. Sulfides, phenolics, and chlorides can cause you to require more polymer.
  7. The higher the percentage of cake solids, the higher the dose of polymer needed.
  8. If you use too much or too little polymer, you may end up with a wet cake solid.

Have more questions about polymer and its role in dewatering? We can answer your questions! Contact us today.

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