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Hydrodynamic Behavior of Natural Adsorbents Filters for Water Treatment Technology
Ist Teil von
Chemical engineering & technology, 2023-06, Vol.46 (6), p.1235-1240
Ort / Verlag
Frankfurt: Wiley Subscription Services, Inc
Erscheinungsjahr
2023
Link zum Volltext
Quelle
Wiley Online Library - AutoHoldings Journals
Beschreibungen/Notizen
To quantify water flow occurring in filter beds employed during wastewater treatment, laboratory column tracer experiments were performed on natural low‐cost adsorbents (charcoal, oyster shell, and argan nutshell) under saturated flow conditions. The columns were packed with 100 % of adsorbents and with multi‐sand‐layer (MSL) system, consisting of permeable layers of pozzolan alternated with mixed layers (sand + adsorbent + sawdust). The results showed a more uniform flow in 100 % adsorbents for charcoal and oyster shell compared to their respective MSL columns. Conversely, flow uniformity was slightly improved in MSL versus 100 % adsorbent for argan nutshell columns. The choice of the appropriated adsorbent is crucial for the improvement of flow uniformity and treatment efficiency.
Quantification of water flow in natural low‐cost adsorbents employed as multilayer filters for wastewater treatment by the infiltration‐percolation technology was investigated. Laboratory tracer experiments and mathematical modeling were performed for such adsorbents. The choice of the appropriate adsorbent is crucial to improve flow uniformity, which in turn will impact the treatment efficiency.