Comparative Study and Evaluation of Sediment Deposition and Migration Characteristics of New Sustainable Filter Media in Micro-Irrigation Sand Filters

Lei Song, Jiumao Cai, Guoliang Zhai, Junjie Feng (), Yongshen Fan, Jinzhao Han, Pingping Hao, Ning Ma and Faqiang Miao
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Lei Song: Institute of Farmland Irrigation of CAAS, Chinese Academy of Agricultural Sciences, Xinxiang 453003, China
Jiumao Cai: Institute of Farmland Irrigation of CAAS, Chinese Academy of Agricultural Sciences, Xinxiang 453003, China
Guoliang Zhai: Institute of Farmland Irrigation of CAAS, Chinese Academy of Agricultural Sciences, Xinxiang 453003, China
Junjie Feng: Institute of Farmland Irrigation of CAAS, Chinese Academy of Agricultural Sciences, Xinxiang 453003, China
Yongshen Fan: Institute of Farmland Irrigation of CAAS, Chinese Academy of Agricultural Sciences, Xinxiang 453003, China
Jinzhao Han: Institute of Farmland Irrigation of CAAS, Chinese Academy of Agricultural Sciences, Xinxiang 453003, China
Pingping Hao: Institute of Farmland Irrigation of CAAS, Chinese Academy of Agricultural Sciences, Xinxiang 453003, China
Ning Ma: Institute of Farmland Irrigation of CAAS, Chinese Academy of Agricultural Sciences, Xinxiang 453003, China
Faqiang Miao: Institute of Farmland Irrigation of CAAS, Chinese Academy of Agricultural Sciences, Xinxiang 453003, China

Sustainability, 2024, vol. 16, issue 8, 1-17

Abstract: The quartz sand filter medium used in micro-irrigation media filters has the disadvantages of short filtration cycle, surface filtration, and mining pollution. Selecting resources as new filter media is essential to improve the performance of the media filter and boost sustainable development. In this study, the traditional quartz sand filter medium and two new filter media were selected, and their corresponding filtration performances were comparatively studied. The influence of the type, particle size, and height of the filter medium on filtration performance was evaluated. The sediment content and distribution based on the size of particles in quartz sand, crushed glass, and glass bead filter layers was measured and analyzed. The hydraulic performance of different filter columns was analyzed. The results showed that for a given particle size, quartz sand exhibits the best sediment retention ability. This promoted the aggregation of small sediment particles into larger ones, whereas the crushed glass and bead glass filter layers promoted the splitting of large sediment particles into smaller ones, which enabled the reduction of blockage during the micro-irrigation process. The filtration rate of the quartz sand filter column exhibited the least fluctuation relative to crushed glass and glass bead filter media, and the pressure in each column exhibited a linear incremental change. In summary, glass microbeads are not suitable as filter material, crushed glass is suitable for general micro-irrigation systems, and quartz sand is suitable for micro-irrigation systems with elaborate filtration requirements. The findings of this study can provide theoretical guidance for the selection of the micro-irrigation filter material.

Keywords: micro-irrigation clogging; sandy water; new filter media; filtration performance; hydraulic performance (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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