Milorganite

Milorganite
Product typeBiosolids fertilizer
OwnerMilwaukee Metropolitan Sewerage District
Introduced1926 (1926)
MarketsUnited States
Registered as a trademark inU.S. Trademark 76,536,671
Websitemilorganite.com
Milorganite building

Milorganite is a brand of biosolids fertilizer produced by treating sewage sludge by the Milwaukee Metropolitan Sewerage District.[1] The term is a portmanteau of the term Milwaukee Organic Nitrogen. The sewer system of the District collects municipal wastewater from the Milwaukee metropolitan area. After settling, wastewater is treated with microbes to break down organic matter at the Jones Island Water Reclamation Facility in Milwaukee, Wisconsin. The byproduct sewage sludge is produced. This is heat-dried with hot air in the range of 900–1,200 °F (482–649 °C), which heats the sewage sludge to at least 176 °F (80 °C) to kill pathogens. The material is then pelletized and marketed throughout the United States under the name Milorganite. The result is recycling of the nitrogen and phosphorus from the waste-stream as fertilizer. The treated wastewater is discharged to Lake Michigan.

The Milwaukee Metropolitan Sewerage District has registered Milorganite as a trademark.[2]

  1. ^ Cite error: The named reference about was invoked but never defined (see the help page).
  2. ^ "MILORGANITE Trademark Information". Trademarkia. Archived from the original on 2019-09-20. Retrieved 2019-09-20. The MILORGANITE trademark is filed in the category of Chemical Products. The description provided to the USPTO for MILORGANITE is Fertilizer and soil conditioning compounds for domestic and agricultural use.