Cited by 9Algal biology and biofuel productionLandfill Environmental Impact StudiesWastewater Treatment and Reuse

Potential application of Chlorella sp. biomass cultivated in landfill leachate as agricultural fertilizer

Saadat, Elham, Ghorbanzadeh, Nasrin, Farhangi, Mohammad Bagher, Fazeli Sangani, Mahmood·2023·Archives of Agronomy and Soil Science

Abstract

This study was to investigate the possibility of nutrient removal from landfill leachate using Chlorella sp. and its potential as agricultural fertilizer. Chlorella sp. was inoculated to a leachate suspension (1:1 ratio). Phosphate, ammonium and nitrate concentrations in the suspension and the dry cell weight of algae were measured at 0, 2, 4, 6 and 8 days of incubation. Then, the harvested microalgae biomass was mixed with a nutrient-poor soil at three levels: 0 (A0), 2 (A2) and 4 (A4) g 100 g−1. The mixtures were incubated for 2 months, and soil biochemical properties, including soil organic carbon (OC), available phosphorus (Pava), mineral nitrogen (Nmin), microbial basal respiration (MBR) and microbial biomass carbon (MBC), were determined in soil at 7, 14, 28, 35, 42, 49 and 56 days of incubation. The dry cell weight of the microalgae increased over time and removed ammonium, phosphate and nitrate from the leachate by 98.7, 92.7 and 56.9%, respectively. The added microalgae biomass to soil caused positive and significant changes in soil OC, Pava, Nmin, MBR and MBC. Therefore, it seems that Chlorella sp. cultivated in landfill leachate can be used as an agricultural fertilizer in soil.

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Crossref · 10.1080/03650340.2022.2073351

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  • Chlorella sp. cells removed ammonium, phosphate, and nitrate from a landfill leachate by 98.7, 92.7, and 56.9%, respectively, and the biomass obtained was used as an agricultural fertilizer.

    “Chlorella sp. cells removed the amount ammonium, phosphate, and nitrate from a landfill leachate by 98.7, 92.7, and 56.9%, respectively, and the biomass obtained was used as an agricultural fertilizer [91].”
  • The addition of microalgae biomass to the soil caused positive and significant changes in soil organic carbon, available phosphorus and nitrogen, microbial basal respiration, and microbial biomass carbon.

    “The addition of microalgae biomass to the soil caused positive and significant changes in soil organic carbon, available phosphorus and nitrogen, microbial basal respiration, and microbial biomass carbon.”

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Authors
Saadat, E., Ghorbanzadeh, N., Farhangi, M. B., & Fazeli Sangani, M.
Affiliations
  • University of Guilan (IR)
  • Department of Soil Science, Faculty of Agriculture, University of Guilan, Rasht, Iran
Corresponding author
Ghorbanzadeh, Nasrin
Venue
Archives of Agronomy and Soil Science
Published
2022-05-05
Volume
69
Issue
8
Pages
1193-1208
ISSN
  • 0365-0340 (ISSN-L)
  • 1476-3567
OpenAlex
W4229026478
Cited by
9
References
58
Citations by year
2026: 2 · 2025: 2 · 2024: 2 · 2023: 3
FWCI
0.32
Type
journal article
Language
en
Open access
closed
Locations
Archives of Agronomy and Soil Science (publishedVersion)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Landfill Environmental Impact Studies
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Wastewater Treatment and Reuse
Keywords
Chlorella sp., landfill leachate, microalgal biomass, agricultural fertilizers, nutrient removal, phosphate removal, ammonium removal, nitrate removal, soil organic carbon, available phosphorus, inorganic nitrogen, microbial biomass carbon, soil amendment

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