Biosolids-based food additive and food material for animal food and methods of production and use thereof

A method of feeding animals a food comprising:

• concentrating dilute waterborne material into a wet microbial cell mass through
• mediation of microorganisms;
• harvesting said microbial cell mass as a food source;
• deactivating said microbial cell mass;
• and, supplying said microbial cell mass as food to animals.

A method of producing a food for feeding animals comprising:

• contacting a wastewater stream containing organic matter with microorganisms;
• allowing said microorganisms to metabolize said organic matter to produce a microbial cell mass;
• deactivating said microbial cell mass;
• and,
• adding a dietary component selected from the group consisting of proteins, lipids, carbohydrates, vitamins, minerals, and fiber to said cell mass to produce an amended food.

A method of producing a food for feeding animals comprising:

• contacting a wastewater stream containing organic matter with microorganisms;
• allowing said microorganisms to metabolize said organic matter to produce a microbial cell mass;
• deactivating said microbial cell mass;
• removing water, at least in part, from said cell mass to produce a solid food material that has a specific gravity less than 1 whereby said food floats on water when used for feeding fish.

A method of producing a food for feeding animals consisting of:

• contacting a wastewater stream containing organic matter with microorganisms;
• allowing said microorganisms to metabolize said organic matter to produce a microbial cell mass having a protein content;
• preventing said protein content decreasing to a level below about 20%;
• harvesting said microbial cell mass;
• deactivating said microbial cell mass, whereby the protein content of said food is maintained above said about 20% by minimizing digestion of said microbial cell mass.

A composition for feeding animals comprising:

• a biosolids mass produced in wastewater treatment;
• and,
• a dietary component selected from the group consisting of proteins, lipids, carbohydrates, vitamins, minerals, and fiber,
• wherein said composition has a specific gravity less than 1, whereby said composition floats when added to water, thereby facilitating the uptake of said composition by fish living in said water.