Publication Details

Reference Category Book chapters
DOI / URL
Title (Primary) Potential and feasibility of willow vegetation filters in Mongolia
Title (Secondary) Water and environment in the Selenga-Baikal Basin : international research cooperation for an ecoregion of global relevance
Author Westphal, K.; Sullivan, C.; Gregersen, P.; Karthe, D.;
Publisher Karthe, D.; Chalov, S.R.; Kasimov, N.S.; Kappas, M.;
Journal Erdsicht : Einblicke in geographische und geoinformationstechnische Arbeitsweisen
Year 2015
Department ASAM;
Volume 23
Language englisch;
POF III (all) T32;
UFZ wide themes RU2;
UFZ inventory Magdeburg, Bibliothek, 00504911, 16-0175 MA : Bi 22
Abstract In Mongolia, the discharge of insufficiently treated wastewater to the receiving environment due to poor connection rates of informal ger areas to wastewater facilities is a significant problem. To address nutrient emission problems as well as hygiene issues, we investigated the potential of willow vegetation filters in
the Kharaa River Basin in Mongolia by (1) testing a pilot willow wastewater treatment plant and (2) developing different design and cost scenarios of a large willow vegetation filter for the model village of Khongor in order to identify a suitable filter type. This work was carried out in the context of a research and development project aiming at the development and implementation of an IWRM concept for the Kharaa River Basin.
Initial results of the pilot plant show that willow vegetation filters are an appropriate way to treat wastewater in Mongolia since treatment performance and operation of the system are satisfying, even under very cold conditions. Moreover, the risk for contaminating the groundwater and soil matrix was found to be low.
Among three alternatives, open evapotranspirative vegetation filters were identified as the most appropriate solution. These systems are not lined and allow some percolation of irrigation water into deeper soil zones. Decisive criteria are next to very low life cycle costs, minimum health risk by subsurface irrigation, high operation reliability and comparatively low land requirements.
ID 16579
Persistent UFZ Identifier http://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=16579
Westphal, K., Sullivan, C., Gregersen, P., Karthe, D. (2015):
Potential and feasibility of willow vegetation filters in Mongolia
In: Karthe, D., Chalov, S.R., Kasimov, N.S., Kappas, M. (eds.)
Water and environment in the Selenga-Baikal Basin : international research cooperation for an ecoregion of global relevance
Erdsicht : Einblicke in geographische und geoinformationstechnische Arbeitsweisen 23
Ibidem-Verlag, Stuttgart, p. 301 - 320