Qalovis – Drying System
About the Company:
The bacterial transformation process is prevented through drying so that considerably less escapes thereby significantly improving the climate of the stable.
About the Solution:
Qalovis Dryers refine animal manure by drying and pelleting – while using the available warm stable air from the ventilation circuit. In this way, by using their product solutions farmers not only save on costs but also obtain additional income.
The bacterial transformation process is prevented through drying so that considerably less escapes thereby significantly improving the climate of the stable. The Qalovis Dryer solves the problem of disposal and odor, optimally prepares manure for further pelleting processing and creates commercial added value.
This value creation can be increased many times over through pelleting and subsequent merchandising, so that the purchase of the Qalovis systems will be paid back in a short period of time.
Solution Strengths, Weaknesses and Critical Indicators
Active Drying Technologies:
- Produce a marketable product, dry manure solids, and reduce transportation costs
- Require energy to reduce water content and dry manure solids, purchased energy cost are an issue
- Require operator attention in excess of other systems due to the risk of combustion
- Other compounds are released with the water (i.e. ammonia, hydrogen sulfide), and require additional treatment
- Potential loss of ammonia nitrogen due to volatilization
- Proven technology for storage reduction, odor control, GHG reduction and pathogen reduction
Evaporation and Drying Technologies:
- Uses heat to produce either manure with less water or dried manure solids
- Systems that reduce water in manure use a series of evaporators to sequentially evaporate water from liquid slurries—energy is supplied either by purchased fuel and/or waste heat from other processes
- Systems that dry separated solids use either a belt or drum to evaporate water from separated solids—energy is supplied either by purchased fuel, electricity and/or waste heat from other processes
- Chemicals are released with the water (i.e. ammonia, hydrogen sulfide), and this often requires additional treatment such as condensation of the water and/or scrubbing of the chemicals
- The requirement for purchased energy and costs are a significant concern leading to a tradeoff between input costs and gains in liquid concentration and transportation/market of by-products
1. OPERATIONAL HISTORY