![Surface Water Treatment by Roughing Filters - A design, Construction and Operation Manual (SKAT - Swiss Centre for Development Cooperation in Technology and Management , 1996): Part 1: General aspects of roughing Surface Water Treatment by Roughing Filters - A design, Construction and Operation Manual (SKAT - Swiss Centre for Development Cooperation in Technology and Management , 1996): Part 1: General aspects of roughing](http://www.nzdl.org/gsdl/collect/aedl/archives/HASH01c7.dir/p023.jpg)
Surface Water Treatment by Roughing Filters - A design, Construction and Operation Manual (SKAT - Swiss Centre for Development Cooperation in Technology and Management , 1996): Part 1: General aspects of roughing
![Water | Free Full-Text | Testing Metallic Iron Filtration Systems for Decentralized Water Treatment at Pilot Scale | HTML Water | Free Full-Text | Testing Metallic Iron Filtration Systems for Decentralized Water Treatment at Pilot Scale | HTML](https://www.mdpi.com/water/water-07-00868/article_deploy/html/images/water-07-00868-g001.png)
Water | Free Full-Text | Testing Metallic Iron Filtration Systems for Decentralized Water Treatment at Pilot Scale | HTML
![Organic micropollutant removal in full-scale rapid sand filters used for drinking water treatment in The Netherlands and Belgium - ScienceDirect Organic micropollutant removal in full-scale rapid sand filters used for drinking water treatment in The Netherlands and Belgium - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0045653520318257-gr5.jpg)
Organic micropollutant removal in full-scale rapid sand filters used for drinking water treatment in The Netherlands and Belgium - ScienceDirect
![Organic micropollutant removal in full-scale rapid sand filters used for drinking water treatment in The Netherlands and Belgium - ScienceDirect Organic micropollutant removal in full-scale rapid sand filters used for drinking water treatment in The Netherlands and Belgium - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0045653520318257-gr2.jpg)
Organic micropollutant removal in full-scale rapid sand filters used for drinking water treatment in The Netherlands and Belgium - ScienceDirect
![Monitoring biofilm function in new and matured full-scale slow sand filters using flow cytometric histogram image comparison (CHIC) - ScienceDirect Monitoring biofilm function in new and matured full-scale slow sand filters using flow cytometric histogram image comparison (CHIC) - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0043135418302288-egi1001C30VT9B.jpg)