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SUMMARY:Group therapy: Macrophyte polyculture of Lemna species and Azolla 
 filiculoides for the optimized remediation of meat processing wastewater
DTSTART;VALUE=DATE-TIME:20261001T123000Z
DTEND;VALUE=DATE-TIME:20261001T124500Z
DTSTAMP;VALUE=DATE-TIME:20260917T004448Z
UID:indico-contribution-2930@cern.ch
DESCRIPTION:Speakers: Jingrou Chen (1School of Biological\, Earth and Envi
 ronmental Sciences\, University College Cork\, Cork\, Ireland 2Sustainable
  Institute\, University College Cork\, Cork\, Ireland)\nSmall\, fast-accum
 ulating\, floating\, aquatic macrophytes such as Lemnaceae (duckweeds) and
  Azolla have gained attention as an eco-friendly and cost-effective soluti
 on to be used for wastewater remediation due to their ability to remove nu
 trients and their potential for valorisation. Polycultures in agricultural
  systems have the potential to outperform monocultures through complementa
 ry resource use\, niche partitioning\, and enhanced stability\, although t
 heir performance can be dependent on species identity\, relative abundance
 \, and environmental conditions. This study investigated the phytoremediat
 ion potential and growth performance of polyculture combinations of *Lemna
  minor*\,  *Lemna minuta*\, and *Azolla filiculoides* (*Azolla*)\, grown o
 n local meat processing wastewater\, assessing how species composition and
  surface covers influenced biomass yield and nutrient removal efficiency. 
 Results indicated that species interactions significantly impacted growth\
 , with *L. minuta* generally facilitating higher *Azolla* growth rates tha
 n *L. minor* at laboratory scales. Owing to its greater tolerance of nutri
 ent-rich wastewater\, 20% surface cover of *L. minuta* combined with 40% s
 urface cover of *A. filiculoides* emerged as an optimal configuration (com
 munity RGR: 0.065 ± 0.065 day-1)\, achieving high growth performance with
  38.13 ± 0.93% removal of total phosphorus. The transition to upscaled co
 nditions showed less pronounced growth effects\, highlighting the challeng
 es of translating controlled laboratory findings to larger-scale applicati
 ons and the need for further optimisation of system design and operational
  parameters. These findings demonstrate the potential of macrophyte polycu
 ltures for agri-food wastewater treatment\, offering a sustainable approac
 h to protecting aquatic ecosystems and creating additional value streams t
 hrough biomass valorisation.\n\nhttps://indico.unina.it/event/117/contribu
 tions/2930/
LOCATION:Department of Agricultural Sciences of the University of Napoli F
 ederico II\, Portici\, Italy Sala Cinese
URL:https://indico.unina.it/event/117/contributions/2930/
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