Production of Struvite from Manure and Digestate

This topic looks at the production of the organic fertiliser struvite as an alternative use for the liquid fraction of digestate and manure. Struvite is a slow-release renewable recovered fertiliser that is high in key nutrients. The benefits of producing struvite for farmers and the economy and the current legislation on their use are discussed. This topic will focus on the EIP-AGRI Operational Group Struvite from Italy as a case study.

Results

#1. What are the key nutrients in struvite?

K, N, Mg

K, N, Mg

N, P, K

N, P, K

P, N, Mg

P, N, Mg

Mn, P, K

Mn, P, K

P, N, Mn

P, N, Mn

#2. What can struvite be produced from?

Select all that apply:

Landfill leachate

Landfill leachate

Manure

Manure

Municipal waste

Municipal waste

Digestate

Digestate

All of the above

All of the above

#3. What are the benefits of producing struvite?

Select all that apply:

Uses the liquid phase of agricultural by-products

Uses the liquid phase of agricultural by-products

Reduces GHGs

Reduces GHGs

Produced locally

Produced locally

Low transport costs

Low transport costs

All of the above

All of the above

Finish