Biosolids granulation is the transformation of biosolids into a granular product that is nearly odor-free and rich in nutrients. The diagram below highlights a mixer to dryer granulation setup (click to enlarge). Part one of the process takes place in a mixer, generally in a …
Pressure agglomeration relies on extreme pressure to force particles together into a desired shape. This includes the following techniques: compaction, briquetting, extrusion, tableting and molding. Non-pressure agglomeration, also known as tumble growth agglomeration, relies on a binding agent and the phenomenon of coalescence to create …
FEECO’s Innovation Center is a state-of-the-art facility equipped to run material tests in a rotary dryer alone, or through testing as part of a continuous process loop such as an agglomeration or granulation process. Dryer test work provides a wealth of valuable information, allowing our …
The reuse of municipal biosolids as a fertilizer product or soil amendment offers multiple benefits, from both an economic and environmental perspective. Recycling biosolids creates revenue where waste management costs once incurred. Furthermore, biosolids are rich in macro and micronutrients, a valuable commodity to soils …
FEECO’s Customer Service Engineers offer an advanced service for drum shaft alignment, in addition to other equipment alignment needs. Our state-of-the-art laser system uses a laser beam to measure and record 3D coordinates of the equipment, providing numerous advantages over traditional methods, such as: Elimination …
Rotary dryers are sized and designed around a material’s unique processing needs, or at least they should be. A custom rotary dryer will produce the most ideal results. The following material characteristics should be considered in sizing and designing a dryer: Moisture content, including inlet …
Agglomeration provides various, multi-dimensional benefits to the raw material, the process, end product and so much more. The environment, more specifically, is one area to reap the benefits. Agglomeration can: Potentially eliminate the need to landfill a material. Improve cost-efficient recycling capabilities. Create the possibility …
Rotary dryers are known as the workhorses of the industrial drying industry, but like any robust equipment, they are not immune to processing challenges. The challenges often vary on the specific material being processed, with some requiring additional preparation, and others, routine maintenance. Generally speaking, …
Manure presents a challenge for large-scale farms. Growing herd sizes, in combination with high land costs, have increased the amount of manure farmers manage, while reducing land available for manure disposal. Furthermore, research indicates that manure application can result in nutrient runoff, which in turn, …
Because compaction is a dry process, usually not requiring binder, drying is often not needed. However, drying can be added to the process set-up to improve resistance to attrition, or the breakdown of granule edges. The granules created during the compaction process can be wetted …