2026-04-17T01:27:02Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/227272024-06-18T12:07:50Zcom_2072_452955com_2072_2054col_2072_453062

00925njm 22002777a 4500 dc Duran i Ros, Miquel author Pujol Planella, Joan author Pujol i Sagaró, Toni author Cufí Aregay, Sílvia author Arbat Pujolràs, Gerard author Ramírez de Cartagena Bisbe, Francisco author Puig Bargués, Jaume author 2023-02-15 Pressurized sand media filters are commonly used in drip irrigation systems to prevent emitter clogging. However, the performance of these filters may be improved with more information about the retention of solids at different bed depths under different filter operation conditions and irrigation water sources. In this study, experiments in a scaled sand media filter were conducted to clog the filter with two different filtration velocities (30 and 60 m h−1) and two-particle types (inorganic from A4 coarse sand dust and organic from a reclaimed effluent). The suspended solids retained in slices of 5 mm (in the first 20 mm of the bed) and 20 mm (from 20 to 200 mm depth) thick were determined following the van Staden and Haarhoff (2011) procedure. The solids retained in each slice per mass of media were significantly (p < 0.05) affected by the interaction between the filtration velocity, the bed depth, and the particle type. The solids retained in the first 5 mm of the bed were significantly higher than at other depths. Moreover, inorganic solids were retained more in upper slices than organic ones. Therefore, media depths may be adjusted depending on the irrigation water source to optimize media use This research was funded by the Spanish Research Agency and the European Regional Development Fund through Grant RTI2018-094798-B-100 http://hdl.handle.net/10256/22727 Regatge per degoteig Trickle irrigation Filtres i filtració Filters and filtration Solid removal across the bed depth in media filters for drip irrigation systems