Library
How can you take care of a slow sand filter on your own? Although slightly out-of-date, this document provides a detailed and well-illustrated description on how to operate and maintain a simple slow sand filter.
VEENSTRA, S. VISSCHER, J.T. (1985): Slow Sand Filtration: Manual for Caretakers. (= IRC Training series , 1 ). The Hague: IRC International Water and Sanitation Centre URL [Visita: 06.02.3012]Factsheet on emergency drinking water disinfection from the U.S. Environmental Protection Agency (U.S. EPA). The factsheets can be downloaded as PDF in English, Spanish, French, Arabic and Vietnamese.
Short introduction on technical and practical aspects of chlorination.
This article presents pysewer, an open-source Python library that automatically generates gravity-prioritised sewer networks from minimal input data—roads, building locations, and elevation models—originally designed for data-scarce settings in emerging countries, producing fully connected and dimensioned networks that minimise reliance on pumping infrastructure.
SANNE, M., KHURELBAATAR, G., DESPOT, D., AFFERDEN, M. VAN, FRIESEN, J. (2024): A Python Library for Sewer Network Generation in Data Scarce Regions. Journal Open Source Software 9 (104), 6430. URL [Visita: 15.05.2026] PDFThis article presents a data-reduced modelling framework that uses urban blocks and synthetic sewer networks generated from open geospatial data to simulate combined sewer overflows without requiring detailed infrastructure datasets, validated against 32 monitored events in a Swiss catchment, demonstrating its potential as a scalable and reproducible approach for early-stage screening and prioritisation of decentralised CSO mitigation strategies.
DESPOT, D., KHURELBAATAR, G., LIPPERA, M.C., DEV ROY, S., MÜLLER, R., and FRIESEN, J. (2026): Urban blocks enable data-reduced, hydraulically sound planning for combined sewer overflow mitigation. Water Research X 30, 100466. URL [Visita: 15.05.2026] PDFThis article develops automated, open-data-driven routines for identifying and dimensioning decentralised Nature-Based Solutions within existing urban catchments, introducing a block-based metric for stormwater mitigation potential and demonstrating, through a case study in Lyon (France), that strategic spatial allocation of interventions can yield significant project cost savings while achieving combined sewer overflow reduction targets.
LIPPERA, M.C., KHURELBAATAR, G., DESPOT, D., KOUYI, G.L., RIZZO, A., FRIESEN, J. (2025): Spatial-economic scenarios to increase resilience to urban flooding. Water Research X 26, 100284. URL [Visita: 15.05.2026] PDFThe foundational guidance for a 30-year track record of Long-Term Control Plans across ~700 US combined-sewer municipalities. Structured into Nine Minimum Controls, system characterisation, alternatives evaluation, selected-controls implementation and post-construction monitoring. Validates the phase-by-phase logic used in Stage 1 and demonstrates what long-term monitoring of outcomes looks like in practice.
US EPA (1995): Combined Sewer Overflows – Guidance for Long-Term Control Plan (EPA 832-B-95-002). Washington, DC: US Environmental Protection Agency, Office of Wastewater Management. URL [Visita: 06.05.2026] PDFFrance’s first national action plan for sustainable stormwater management. 24 actions across four axes: integration into spatial planning, knowledge-sharing and training, enforcement and regulatory tools, and research. Strong emphasis on source-based management, desealing and treating stormwater as a resource — a useful reference for the policy framing of Identify where pollution comes from and the Stage 1 Checkpoint on climate adaptation.
MTECT (2021): Gestion durable des eaux pluviales : le plan d’action 2022–2024. Paris: Ministère de la Transition écologique et de la Cohésion des territoires (MTECT). URL [Visita: 06.05.2026] PDF