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Iowa Biosolids

 

State Data

Confidence in data for this state:

HIGH

2018 data unless noted.

IA chart@2x.png

Click chart to download.

IA septage@2x.png

Click chart to download.

Definitions

Terms used on this website and in data sets are defined & discussed here.

Land application near Washington, IA. Photo courtesy of the City of Washington.

Land application near Washington, IA. Photo courtesy of the City of Washington.

Biosolids dry cake land application near Dubuque, IA. Photo courtesy of Nutri-Ject Systems, Inc.

Biosolids dry cake land application near Dubuque, IA. Photo courtesy of Nutri-Ject Systems, Inc.

State Statistics Dashboard

State Summary

● Iowa has abundant agriculture, and biosolids recycling to soils is prevalent, routine, economical, and encouraged. Landfill disposal of sewage sludge is discouraged and landfill disposal Class A or Class B biosolids is prohibited.

● Nutrient management is a growing concern statewide; effluent standards and non-point nutrient sources are a focus – and biosolids might be.

● Des Moines – the state’s largest WRRF – is a national leader in advanced anaerobic digestion and renewable natural gas (RNG) production, putting to use the abundant food processing and other liquid wastes available for co-digestion.

● IA DNR provides robust data on biosolids treatment technologies; see the state’s data spreadsheet.

Land application. Photo courtesy of Nutri-Ject Systems, Inc.

Land application. Photo courtesy of Nutri-Ject Systems, Inc.

Dredging a sludge lagoon. Photo courtesy of Nutri-Ject Systems, Inc.

Dredging a sludge lagoon. Photo courtesy of Nutri-Ject Systems, Inc.