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Argentinian study trials a natural wetland system to treat wastewater 
  • Academic journal
  • Gabriel O. Basílico

Treatment wetlands are a method of purifying wastewater. This study tested a natural wastewater treatment system in Argentina comprising tanks, wetlands and ponds. The system removed most solids and pollution from kitchen and bathroom water, worked during floods, and supported healthy plant growth. 

Interconnected waterways have healthier, more diverse ecosystems
  • Academic journal
  • Huawei Bao, corresponding author Naicheng Wu

Diversity of macroinvertebrates (e.g. snails, worms, and larval insects) is an indicator of river health. This study sampled locations along a Chinese watershed and found that downstream locations, where interconnectivity of river habitats was greater, saw higher macroinvertebrate diversity.

Study guides design of microalgae-based systems for treating wastewater 
  • Academic journal
  • Lin-Lan Zhuang

Microalgae can remove pollutants from wastewater, though their ability to do so is influenced by how pollutants interact. This study explored the use of the microalgae Chlorella vulgaris to remove nitrates, phosphates, and the common antibiotic florfenicol from wastewater.

RS101_Horvat406_#3, fish big
  • Academic journal
  • Sinem Zeytin

Commercially farmed fish are at risk of becoming contaminated by ingested microplastics. This study measured ingested microplastics in farmed European seabass, finding the highest levels of microplastics in the intestine, blood, gills, liver and fillet. Larger particles accumulated in the fillet.

Study presents new solar-driven desalinisation system to restore soil function
  • Academic journal
  • Zhi Yang, corresponding author Baoliang Chen

Highly saline soil threatens agricultural productivity, ecosystem stability, and food security. Removing excess salts from soil relies on freshwater flushing – a challenge for arid regions. This study developed a sustainable soil remediation system able to remove 95.9% of salt from soil in 7 days.

  • Academic journal
  • Olga Vigiak, corresponding author Bruna Grizzetti

Rivers and lakes retain nutrients, thereby regulating nutrient levels downstream. This study explored how effectively Europe’s rivers and lakes provide this ecosystem service. It found that freshwater bodies retain roughly 16% of nitrogen and 13% of phosphorus, stopping it from reaching the sea.