Cited by 315Algal biology and biofuel productionWastewater Treatment and Nitrogen RemovalWastewater Treatment and Reuse

Synergistic cooperation between wastewater-born algae and activated sludge for wastewater treatment: Influence of algae and sludge inoculation ratios

Su, Yanyan, Mennerich, Artur, Urban, Brigitte·2012·Bioresource Technology

Abstract

An algal-bacterial culture, composed of wastewater-born algae and activated sludge, was cultivated to treat domestic wastewater and accumulate biomass simultaneously. The influence of algae and sludge inoculation ratios on the treatment efficiency and the settleability of the accumulated biomass were investigated. There was no significant effect of the inoculation ratios on the chemical oxygen demand removal. Comparatively, the nutrients removal and related mechanism were varied with different inoculation ratios. The highest nitrogen and phosphorus removal efficiencies were observed with 5:1 (algae/sludge) culture (91.0±7.0% and 93.5±2.5%, respectively) within 10 days, which was 5-40% higher and 2-4 days faster than those with other inoculation ratios. The biomass settleability was improved with the assistance of sludge, and the 1:5 (algae/sludge) culture showed the best settleability. Furthermore, 16S rDNA gene analysis showed that the bacterial communities were varying with different algae and sludge inoculation ratios and some specific bacteria were enriched during operation.

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Crossref · 10.1016/j.biortech.2011.11.113

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Authors
Su, Y., Mennerich, A., & Urban, B.
Affiliations
  • Leuphana University of Lüneburg (DE)
  • Ostfalia University of Applied Sciences (DE)
Corresponding author
Su, Yanyan
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2012-02
Volume
105
Pages
67-73
ISSN
0960-8524 (ISSN-L)
OpenAlex
W1980733813
Cited by
315
References
31
Citations by year
2026: 17 · 2025: 30 · 2024: 21 · 2023: 26 · 2022: 39 · 2021: 37 · 2020: 28 · 2019: 27 · 2018: 28 · 2017: 13 · 2016: 14 · 2015: 8 · 2014: 14 · 2013: 9 · 2012: 4
FWCI
3.59
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
  • Multilingual Matters (Channel View Publications) (submittedVersion)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Environmental Science › Pollution › Wastewater Treatment and Nitrogen Removal
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Wastewater Treatment and Reuse
Keywords
activated sludge, inoculum ratio, domestic wastewater treatment, nitrogen removal, phosphorus removal, bacterial community composition, 16S rRNA gene, COD removal
MeSH terms
Chlorophyta, Biotechnology, DNA, Ribosomal, Hydrogen-Ion Concentration, Nitrogen, Oxygen, Phosphorus, RNA, Ribosomal, 16S, Sewage, Temperature, Time Factors, Water Pollutants, Chemical, Water Purification, Biomass, Environmental Restoration and Remediation

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