Why use a Drop-In Clarifier instead of Dewatering Bags?

Geotextile bags are a cost effective way to passively dewater slurries. UniPure defines “slurry” as water with at least 10,000 mg/l total suspended solids (TSS).

Dewatering bags process water on a batch basis. Slurry is pumped into bags. When the bags are full the pump is stopped. The bags are sealed. The filtrate slowly passes thru the material and the dewatered solids are captured inside the bags. When the desired dryness is achieved the bags are cut open and the solids are transported to the final disposal facility. This four step batch process can take days to complete.

The overall treatment cost of dewatering bags is directly related to the initial thickness of the slurry. The thicker the slurry the lower the overall operating costs.

The reverse is also true. If the untreated water is not slurry then the number of bags, area, time and overall operating costs will increase.

UniPure routinely uses a geotextile bag to collect and dewater the underflow from a clarifier which contains 10,000 – 50,000 mg/l TSS.

If your;

  • wastewater is not a slurry,
  • effluent TSS requirement is less than 20 mg/l,
  • site has limited space available for treatment equipment,
  • budget is based on a treatment cost less than $0.001/treated gallon,

then a UniPure Drop-In Clarifier is the better rental option for your project.
Drop-In-vs-dewatering-bags

One (1) UniPure Drop-In Clarifier can comfortably treat 326K gallons per day.

Slurry
Slurry of precipitated iron & lime solids

dwb-slurry-sm
Dewatering bags being filled with slurry

6-month-sm
Dewatering bags after a 6 month freeze/thaw cycle

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Contents of dewatering bags being removed