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How it Works: Biosolids Granulation
Biosolids granulation transforms challenging wastewater biosolids into a dry, nutrient-rich, and odor-free granular product. This process alleviates transportation and land application issues while providing benefits such as reduced waste management costs, improved product handling, and enhanced nutrient management. The highly customizable granulation process can produce premium fertilizer products, integrating with traditional fertilizers for tailored solutions.
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How it Works: Biosolids Granulation
- 1. Biosolids Granulation Experts inprocess design and material processing for over 65 years. How it Works:
- 2. Biosolids present significantchallenges for wastewater treatment plants. High transportation costs and reduced land available for application combined with a growing population leaves municipalities with few options.
- 3. However, a technologythat transforms biosolids into a granular product holds opportunity to help solve these problems…
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- 5. Through granulation, biosolidscan be transformed into a dry, granular product that is nearly odor-free with minimal dust, but still rich in nutrients and organic matter.
- 6. The granulation ofbiosolids offers the opportunity to alleviate the aforementioned issues, and can also offer many benefits.
- 7.
- 8. Benefits include: • Improvedproduct handling & application
- 9. Benefits include: • Improvedproduct handling & application • Reduced waste management costs
- 10. Benefits include: • Improvedproduct handling & application • Reduced waste management costs • Reduced opportunity for runoff
- 11. Benefits include: • Improvedproduct handling & application • Reduced waste management costs • Reduced opportunity for runoff • The creation of a custom, premium product
- 12. Benefits include: • Improvedproduct handling & application • Reduced waste management costs • Reduced opportunity for runoff • The creation of a custom, premium product • Potential additional source of revenue
- 13. Benefits include: • Improvedproduct handling & application • Reduced waste management costs • Reduced opportunity for runoff • The creation of a custom, premium product • Potential additional source of revenue • Enhanced nutrient management
- 14.
- 15. BURNER DRYER RAW FEED FUEL RAW FEEDBINDER PADDLE MIXER FUEL BURNER DRYER COOLER BAGHOUSE TO ATMOSPHERE PRODUCT SCREEN CRUSHING EQUIPMENT RECYCLE BIN TRUCK LOAD OUT RAIL LOAD OUT PACKAGING LINE STOCK PILE PRODUCT BIN TO ATMOSPHERE BAGHOUSE OR SCRUBBER SYSTEM Shown above is a mixer to dryer granulation setup.
- 16. First, raw feedand binder are fed into a mixer, generally a pug mill (paddle mixer). This is where the feedstock is thoroughly mixed and the actual granulation occurs.
- 17. Next, the granulescreated in the mixer are fed to a rotary dryer, where they are dried into their final form. The tumbling action of the dryer further “polishes” and rounds the granules.
- 18. Granules exit thedryer and are fed to a rotary cooler, where the product is cooled. Product is then screened, where undersize material and crushed oversize material are fed back into the process as recycle, creating a continuous process loop.
- 19. The resulting productgoes beyond the EPA’s qualifications for a Class A Biosolid (according to the EPA’s 503 regulations).
- 20. The granulation processis highly customizable, and yields a clean, odor-free, premium fertilizer product.
- 21. The granulation processis highly customizable, and yields a clean, odor-free, premium fertilizer product. The product can even be combined with traditional chemical-based fertilizer ingredients or minerals to create a custom blend or boutique fertilizer.
- 22. Conclusion While biosolids dopresent challenges to municipalities in their current form, the granulation of biosolids offers improved value, as well as many economic and environmental benefits.
- 23. has been aleader in the fertilizer industry since the 1950s, providing process & product development, feasibility testing, and custom fertilizer production solutions, equipment, and complete process systems.
- 24. Want to learnmore? Download our Biosolids Brochure Download Now