Spatialization of saturated hydraulic conductivity using the Bayesian Maximum Entropy method: Application to wastewater infiltration areas

WATER RESEARCH

卷:204

Article

Rabouli, Sara¹  Serre, Marc²  Dubois, Vivien¹  Gance, Julien³  Henine, Hocine⁴  Molle, Pascal¹  Truffert, Catherine³  Delgado-Gonzalez, Laura¹  Clement, Remi¹ 

[1] REVERSAAL, INRAE, F-69626 Villeurbanne, France

[2] Univ N Carolina, Chapel Hill, NC 27515 USA

[3] IRIS Instruments, F-45100 Orleans, France

[4] INRAE, UR HYCAR, 1 Rue Pierre Gilles de Gennes, F-92160 Antony, France

关键词: Wastewater treatment plant;    Design;    Bayesian Maximum Entropy;    Saturated hydraulic conductivity;    Electrical resistivity tomography;    Infiltration test;   

DOI  :  10.1016/j.watres.2021.117607

来源: Elsevier

【 摘 要 】

Wastewater treatment, a major issue at the European level, focuses on improving surface water and groundwater quality, preserving the receiving environment, and ensuring a sustainable use of water. Soil infiltration is increasingly practiced downstream of wastewater treatment plants, particularly in rural areas without surface water bodies, as is the use of soil as an additional buffer and treatment step. However, the design of infiltration areas on heterogeneous soils remains an extremely complex task due to the costly and time-consuming spatial measurement of saturated hydraulic conductivity (Ks). This article proposes integrating 2D electrical resistivity tomography and infiltration tests into a Bayesian Maximum Entropy method, yielding a vertical mapping of soil heterogeneities at a metric scale. This updated method will facilitate infiltration area design in a heterogeneous soil setting.

【 授权许可】

Free