Gravity thickening is the process by which biosolids are condensed to produce a concentrated solids product and a relatively solids-free supernatant.
The biosolids technology fact sheet for gravity thickening provides:
- A description of gravity thickening
- Applicability to wastewater treatment plants
- Advantages and disadvantages of gravity thickening
- Design criteria
- Performance capabilities and data
- Operation and maintenance information
- Costs
- Fact Sheet: Gravity Thickening (PDF)(10 pp, 117 K, September 2003, EPA 832-F-03-022)