GET /metagenomics/api/v1/samples/ERS666162/studies?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"links": {
"first": "https://www.ebi.ac.uk/metagenomics/api/v1/samples/ERS666162/studies?format=api&page=1",
"last": "https://www.ebi.ac.uk/metagenomics/api/v1/samples/ERS666162/studies?format=api&page=1",
"next": null,
"prev": null
},
"data": [
{
"type": "studies",
"id": "MGYS00001384",
"attributes": {
"accession": "MGYS00001384",
"bioproject": "PRJEB8654",
"samples-count": 64,
"is-private": false,
"last-update": "2017-01-09T10:49:57",
"secondary-accession": "ERP009676",
"centre-name": "WDRC KAUST",
"public-release-date": null,
"study-abstract": "Two lab-scale anaerobic membrane bioreactors (AnMBRs), one up-flow attached-growth (UA) and another continuously stirred (CSTR), were operated under mesophilic conditions (35 ?C) while treating low-strength synthetic wastewater (800 mg/L COD). Each reactor was attached to both polyvinylidene fluoride (PVDF) and polyethersulfone (PES) microfiltration (MF) membranes concurrently in external cross-flow configuration. Both reactors were upstarted and run under the same operating conditions for multiple biofouling experiments. COD removal rates were similar for both reactors (90-96%). During the first fouling experiment conducted for the CSTR reactor, the PES membrane experienced an increase in transmembrane pressure (TMP) to above 60 kPa within the first 20 days of operation while all other membranes in both reactors experienced more gradual fouling rates. High performance liquid chromatography (HPLC) protein analysis of the soluble extracellular polymeric substances (EPS) of all biofilm samples showed a peak at retention time of 6 min that dominated in size when premature fouling was observed. This peak was also seen consistently in the soluble microbial products (SMP) of the retentate for both reactors. Microbial dynamics in reactor biomasses and in membrane biofilms were monitored using Ion Torrent sequencing targeting 16S rRNA genes. Results showed that presence of syntrophic bacteria and methanogens were higher in attached biomass as compared to suspended biomass while several dominant OTUs closest related to fermentative bacteria were dominant in the suspended biomass of the CSTR. Despite the UA reactors? inherent affinity for attached biomass, methane production rates were roughly 15% higher in the CSTR AnMBR than the UA. Furthermore, several groups of bacteria associates with the phylum Firmicutes were present in the CSTR suspended sludge at high relative abundances only in samples taken close to increases in TMP across the PES membrane, suggesting a possible connection with premature fouling.",
"study-name": "Microbial dynamics and biofouling in suspended and attached growth anaerobic membrane bioreactors treating low-strength synthetic wastewater",
"data-origination": "SUBMITTED"
},
"relationships": {
"publications": {
"links": {
"related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00001384/publications?format=api"
}
},
"downloads": {
"links": {
"related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00001384/downloads?format=api"
}
},
"samples": {
"links": {
"related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00001384/samples?format=api"
}
},
"biomes": {
"links": {
"related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00001384/biomes?format=api"
},
"data": [
{
"type": "biomes",
"id": "root:Engineered:Bioreactor",
"links": {
"self": "https://www.ebi.ac.uk/metagenomics/api/v1/biomes/root:Engineered:Bioreactor?format=api"
}
}
]
},
"analyses": {
"links": {
"related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00001384/analyses?format=api"
}
},
"geocoordinates": {
"links": {
"related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00001384/geocoordinates?format=api"
}
}
},
"links": {
"self": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00001384?format=api"
}
}
],
"meta": {
"pagination": {
"page": 1,
"pages": 1,
"count": 1
}
}
}