A microalga-bacteria wastewater-treatment consortium assembled by combining activated Chlorella vulgaris with separately activated mixed liquor suspended solids (MLSS) bacteria in an outdoor high-rate algal pond. Kumar et al. 2026 called this pairing an activated microalgae-activated bacteria, or AM-AB, consortium and reported rapid nitrogen, phosphate, and biological oxygen demand removal during biological wastewater treatment.
Taxonomy
| Taxon | Ontology ID | Functional Roles | Abundance |
|---|---|---|---|
| Chlorella vulgaris | NCBITaxon:3077 · TaxonMech · TraitMech |
PRIMARY_PRODUCER
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N/A |
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| Activated MLSS bacterial consortium — ontology label: Bacteria | NCBITaxon:2 · TaxonMech · TraitMech | N/A | |
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Ecological Interactions
ℹ️ No detailed ecological interaction data is available for this community.
This record may be a metabolic model or minimal entry containing only taxonomy and external resource links.
Knowledge gaps & discussions (2)
KNOWLEDGE_GAP OPEN Which reported HRAP conditions can now be curated from the full text, and which outdoor operating conditions remain unspecified?
The full primary Methods and Tables 1-3 are now available and identify wastewater/sludge sources, activation, pond geometry, inoculation and initial chemistry. These are no longer abstract-access gaps. Reconcile the non-graph fields with those sections; do not transfer indoor algal-stock light and temperature settings to outdoor treatment. The graph review leaves that metadata curation separate.
Attaches to: taxonomy#Activated MLSS bacterial consortium, growth_media#wastewater outdoor HRAP medium, cultivation_setup
KNOWLEDGE_GAP OPEN Which consortium-level treatment effects and qualified mechanisms belong in the currently empty graph?
The primary study compares the combined culture with activated algae alone. Retain improved late total-nitrogen removal, but early nitrogen removal is slower, phosphate reaches the detection limit in both conditions, and BOD removal is not uniformly better. Biomass correlations do not establish a transfer mechanism. New nodes require a separately authorized Edison causal-graph review; none were added in this repair pass.
Attaches to: ecological_interactions
1 evidence item(s)
phycoremediation using the AM–AB consortium delayed the removal of nitrogen compared to standalone activated C. vulgaris treatment
The algae-only control prevents an unqualified faster-removal or universal-synergy graph.
External Resources
| Name | Repository | Resource ID |
|---|---|---|
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Primary publication - AM-AB Chlorella-MLSS wastewater consortium
PubMed record for the Water Environment Research study reporting an activated microalgae-activated MLSS bacteria consortium for outdoor high-rate algal pond wastewater treatment. |
OTHER | PMID:42429207 |
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Publication DOI - AM-AB Chlorella-MLSS wastewater consortium
DOI for the Water Environment Research study of the AM-AB Chlorella-MLSS wastewater consortium. |
OTHER | doi:10.1002/wer.70489 |
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Environmental Factors
| Factor | Value | Unit |
|---|---|---|
| Chlorella nutrient activation | 0.1x standard commercial medium for 2 days | N/A |
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| Nitrogen removal | 99.9% after 6 h | N/A |
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| Phosphate removal | <0.01 mg/L after 2 h | N/A |
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| Total-nitrogen specific removal rate | 49.81 mg/g/h | N/A |
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| BOD reduction | 81.73% | N/A |
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Growth Media
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