Effect of Sludge Retention Time on Biomass Production and Nutrient Removal at an Algal Membrane Photobioreactor

Solmaz, Alper; Işık, Mustafa

doi:10.1007/s12155-019-9961-4

Cited by 19 publications

(4 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…27,47 Probably, this behavior can be attributed to an interplay between light penetration and biomass concentration, which may have a relevant role in MPBRs at long SRTs. 48 Therefore, results suggest that it may be difficult to increase biomass concentration up to 3.0–3.5 g L −1 due to self-shading effect, as previously reported in MPBR studies. 49,50…”

Section: Resultssupporting

confidence: 67%

“…The calculated phosphate removal rate was 0.67 mg L −1 d −1 , comparable with those reported in previous studies. 48,57…”

Section: Resultsmentioning

confidence: 99%

“…The calculated phosphate removal rate was 0.67 mg L −1 d −1 , comparable with those reported in previous studies. 48,57 Finally, it is important to note that the membrane provided a high quality effluent in terms of microbial (absence of E. coli and Legionella spp.) and physical (turbidity <0.5 NTU) parameters, which complied with the new European regulation of minimum requirements for the use of reclaimed water quality for agricultural irrigation.…”

Section: Treatment Performancementioning

confidence: 99%

See 2 more Smart Citations

Evaluation of membrane fouling in a microalgal-bacterial membrane photobioreactor treating secondary wastewater effluent: effect of photoperiod conditions

Segredo-Morales

González

González-Martín

et al. 2023

Environ. Sci.: Water Res. Technol.

View full text Add to dashboard Cite

show abstract

Section: Resultssupporting

confidence: 67%

“…The calculated phosphate removal rate was 0.67 mg L −1 d −1 , comparable with those reported in previous studies. 48,57…”

Section: Resultsmentioning

confidence: 99%

Section: Treatment Performancementioning

confidence: 99%

See 1 more Smart Citation

Evaluation of membrane fouling in a microalgal-bacterial membrane photobioreactor treating secondary wastewater effluent: effect of photoperiod conditions

Segredo-Morales

González

González-Martín

et al. 2023

Environ. Sci.: Water Res. Technol.

View full text Add to dashboard Cite

show abstract

“…At the same time, the low concentrations of nutrients in primary or secondary effluents from WWTPs would not yield a significantly dense algal culture, leading to increasing dewatering problems. A decoupling of hydraulic retention time (HRT) and SRT has been considered an effective strategy to maximize the algal productivity and nutrient removal in the algal membrane bioreactor (A-MBR) 17,18 and promote the formation of microalgae aggregates in batch sequential reactors utilizing dilute nutrient wastewater. 19,20 However, the decoupling SRT and HRT in constantly submerged reactors as an alternative for increasing the microalgal growth and biofuel production in low-strength wastewater is not yet fully understood.…”

Section: Introductionmentioning

confidence: 99%

Decoupling solid and hydraulic retention times in microalgal biofilm reactors treating primary wastewater: performance and biodiesel potential

Arcila

Halloum

Calvo

et al. 2023

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND: Microalgal biofilm systems are a promising approach for wastewater treatment and for production of biodiesel precursors through simple biomass harvesting. However, the low concentration of nutrients in wastewater limits possible approaches for microalgal growth. The effective decoupling of the solid retention time (SRT) and the hydraulic retention time (HRT) in biofilm reactors as an alternative for increasing microalgae growth and biodiesel performance in low-strength wastewater has not been investigated. In this study, we tracked how decoupling the SRT and the HRT influences the removal of organics and nutrients, the biomass productivity and the production of fatty acid methyl esters (FAME).RESULTS: Three perturbations of the HRT, SRT and liquid level (LL) with regards to the base case condition (HRT 2.6 h; SRT 21 days, LL 5 mm) performance were analyzed. The base case showed the highest TN and TP removal (>50%) outcomes with high pH values (>10). A decrease of HRT and SRT from 2.6 to 1.3 h and 21 to 10 days, respectively, promoted an increment of microalgal productivity ≤5.8 ± 0.7 g m −2 day −1 . A short HRT of 1.3 h enhanced the nitrogen removal rate up to 1.2 g N m −2 day −1 , which triggered an increase in the FAME productivity and microalgal density on the biofilms without affecting their productivity.CONCLUSION: Our study demonstrated that the strategy of decoupling HRT and SRT allows operation at shorter HRTs, promoting microalgal growth without affecting FAME production in low-strength municipal wastewater.

show abstract

Algal‐based Membrane Bioreactor for Wastewater Treatment

Heidari

Wood

Ismail

2022

Bioresource Technology

View full text Add to dashboard Cite

Effect of Sludge Retention Time on Biomass Production and Nutrient Removal at an Algal Membrane Photobioreactor

Cited by 19 publications

References 40 publications

Evaluation of membrane fouling in a microalgal-bacterial membrane photobioreactor treating secondary wastewater effluent: effect of photoperiod conditions

Evaluation of membrane fouling in a microalgal-bacterial membrane photobioreactor treating secondary wastewater effluent: effect of photoperiod conditions

Decoupling solid and hydraulic retention times in microalgal biofilm reactors treating primary wastewater: performance and biodiesel potential

Algal‐based Membrane Bioreactor for Wastewater Treatment

Contact Info

Product

Resources

About