Santiago

Santiago.jl can be used to find all possible sanitation systems given a set of technologies, assess the appropriateness of individual technologies and overall systems in a given context, calculate mass flows (with optional uncertainty quantification) for phosphorus, nitrogen, total solids, and water, and select a meaningful subset of systems for a specific case and with optimisation of resource recovery.

It comes along with a technology library that covers over 90 technologies from five functional groups of a system (user interface, onsite storage, conveyance, treatment and reuse or disposal). Each technology is characterised by in and outflows, loca appropraiteness requirements structured into 27 criteria (from space and energy requirements to operational costss and social acceptance) and the transfer coefficients for phosphorus, nitrogen, total solids and water. The software, a detailed user guide and the technology liberary are available on github: Santiago.jl.

For non-research applications, it can be used via the web app sanichoice.net.

The package is backed by three peer-reviewed publications in Water Research and Journal of Environmental Management, and is freely available under the GNU Affero General Public License. The latest release is v0.10.2 (April 2024).

Please cite as:

Software: Spuhler, D., Scheidegger, A., Maurer, M., 2021. Ex-ante quantification of nutrient, total solids, and water flows in sanitation systems. Journal of Environmental Management 280, 111785. DOI

Technology library: Spuhler, D. Scheidegger, A., Roller, L., Fritzsche, J., Willimann, C., Ilmanen, K. (2022) SANTIAGO documentation and technology library: functionalities, definitions and data for appropriateness profiles and transfer coefficients. Continuously updated URL