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Calculator

AGV Calculator

In the Ecoval Sudoe project, we have been working since November 2020 to demonstrate the feasibility of a new business model for obtaining volatile fatty acids from sewage sludge and municipal organic waste.   

The good news is that we’ve done the maths!   

In each section you can see the amount of volatile fatty acids that can be obtained through the biotechnological processes implemented by the project, from the raw materials we have worked with (urban organic waste and sewage sludge). We also present the production figures if we apply the same model to industries such as the dairy or canning industries. Interesting, isn’t it?

If you want to know if it would also be worthwhile for you to switch to the circular model proposed by Ecoval Sudoe, use our calculator!

 

Nutrient calculator

We present the calculation tool Nutrient supply to the soil through amendments with sludge, to know the number of nutrients that is supplied to the soil when applying a certain dose of the sludge tested in the ECOVAL project.

Instructions for use:
To find out the number of nutrients contributed to the soil with a given dose of any of the sludge tested in the ECOVAL Project select the type of sludge to be used from the tabs and indicate, in the first row, the amount of sludge applied in the amendment and then press enter.

Interpretation of the results:
When selecting the type of sludge and the dose to be applied, the estimated amount of nutrients that is present in the indicated amount of the chosen amendment will automatically appear. Additionally, it is indicated whether the dosage of the introduced amendment complies with the current regulations on the annual contribution of heavy metals to the soil when using sewage sludge in the agricultural sector. The results have to be interpreted as an estimation of the real quantities that we would be adding to the soil through the amendments, as the chemical composition of the sludge is not the same in all batches. Before adding an amendment to the soil, a specific chemical analysis of the sludge to be used should be carried out.

Limitations:
The results shown have been calculated on the basis of an analytical analysis carried out on each of the sludges tested. Some parameters were not analysed in all the sludges and therefore there are some results that cannot be shown due to lack of information.