Performance and Mechanism of a Novel Composite Ecological Ditch System for Nitrogen and Phosphorus Interception in Agricultural Drainage DOI Open Access

Xin Wu,

Chaohui Chen, Zijiang Yang

et al.

Water, Journal Year: 2025, Volume and Issue: 17(6), P. 882 - 882

Published: March 19, 2025

The massive loss of nitrogen (N) and phosphorus (P) from farmland ditches contributes to non-point source pollution, posing a significant global environmental challenge. Effectively removing these nutrients remains difficult in intensive agricultural systems. To address this, novel composite ecological ditch system (CEDS) was developed by modifying traditional drainage integrate grit chamber, zeolite, floating beds. Dynamic monitoring N P levels water, plants, zeolite conducted evaluate the system’s nutrient interception performance mechanisms. results showed following: (1) Water quality improved markedly after passing through CEDS, with concentrations decreasing progressively along flow path. intercepted 41.0% 31.9% P, inorganic particulate as primary forms loss. (2) Zeolite removes primarily ion exchange, likely chemical reactions, maximum capacities 3.47 g/kg for 1.83 P. (3) Ecological beds hydroponic cultivation enhanced uptake roots Canna indica Iris pseudacorus, surpassing (4) Nutrient efficiency positively correlated temperature, inlet concentrations, rice runoff but negatively precipitation. This study demonstrates CEDS’s potential improving water suggests further enhancements design management increase its economic aesthetic value.

Language: Английский

Performance and Mechanism of a Novel Composite Ecological Ditch System for Nitrogen and Phosphorus Interception in Agricultural Drainage DOI Open Access

Xin Wu,

Chaohui Chen, Zijiang Yang

et al.

Water, Journal Year: 2025, Volume and Issue: 17(6), P. 882 - 882

Published: March 19, 2025

The massive loss of nitrogen (N) and phosphorus (P) from farmland ditches contributes to non-point source pollution, posing a significant global environmental challenge. Effectively removing these nutrients remains difficult in intensive agricultural systems. To address this, novel composite ecological ditch system (CEDS) was developed by modifying traditional drainage integrate grit chamber, zeolite, floating beds. Dynamic monitoring N P levels water, plants, zeolite conducted evaluate the system’s nutrient interception performance mechanisms. results showed following: (1) Water quality improved markedly after passing through CEDS, with concentrations decreasing progressively along flow path. intercepted 41.0% 31.9% P, inorganic particulate as primary forms loss. (2) Zeolite removes primarily ion exchange, likely chemical reactions, maximum capacities 3.47 g/kg for 1.83 P. (3) Ecological beds hydroponic cultivation enhanced uptake roots Canna indica Iris pseudacorus, surpassing (4) Nutrient efficiency positively correlated temperature, inlet concentrations, rice runoff but negatively precipitation. This study demonstrates CEDS’s potential improving water suggests further enhancements design management increase its economic aesthetic value.

Language: Английский

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