Scenario Analysis of Nutrient Removal from Municipal Wastewater by Microalgal Biofilms

Research output: Contribution to journalArticleAcademicpeer-review

49 Citations (Scopus)

Abstract

Microalgae can be used for the treatment of municipal wastewater. The application of microalgal biofilms in wastewater treatment systems seems attractive, being able to remove nitrogen, phosphorus and COD from wastewater at a short hydraulic retention time. This study therefore investigates the area requirement, achieved effluent concentrations and biomass production of a hypothetical large-scale microalgal biofilm system treating municipal wastewater. Three scenarios were defined: using microalgal biofilms: (1) as a post-treatment; (2) as a second stage of wastewater treatment, after a first stage in which COD is removed by activated sludge; and (3) in a symbiotic microalgal/heterotrophic system. The analysis showed that in the Netherlands, the area requirements for these three scenarios range from 0.32 to 2.1 m2 per person equivalent. Moreover, it was found that it was not possible to simultaneously remove all nitrogen and phosphorus from the wastewater, because of the nitrogen:phosphorus ratio in the wastewater. Phosphorus was limiting in the post-treatment scenario, while nitrogen was limiting in the two other scenarios. Furthermore, a substantial amount of microalgal biomass was produced, ranging from 13 to 59 g per person equivalent per day. These findings show that microalgal biofilm systems hold large potential as seasonal wastewater treatment systems and that it is worthwhile to investigate these systems further
Original languageEnglish
Pages (from-to)460-473
JournalWater
Volume4
Issue number2
DOIs
Publication statusPublished - 2012

Fingerprint

Biofilms
Waste Water
biofilm
Nutrients
Wastewater
wastewater treatment
Phosphorus
scenario
wastewater
phosphorus
Food
Nitrogen
Wastewater treatment
nutrients
nitrogen
concentration of production
Biomass
activated sludge
microalgae
effluents

Keywords

  • waste water treatment
  • biofilms
  • algae
  • biological water treatment plants
  • comparative research
  • sequences
  • feasibility studies
  • heterotrophic microorganisms
  • nitrogen
  • phosphorus
  • removal
  • biomass production
  • biobased economy
  • marine-phytoplankton
  • chemical-composition
  • chlorella-vulgaris
  • nitrate uptake
  • algal biofilm
  • growth
  • photobioreactor
  • photosynthesis

Cite this

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title = "Scenario Analysis of Nutrient Removal from Municipal Wastewater by Microalgal Biofilms",
abstract = "Microalgae can be used for the treatment of municipal wastewater. The application of microalgal biofilms in wastewater treatment systems seems attractive, being able to remove nitrogen, phosphorus and COD from wastewater at a short hydraulic retention time. This study therefore investigates the area requirement, achieved effluent concentrations and biomass production of a hypothetical large-scale microalgal biofilm system treating municipal wastewater. Three scenarios were defined: using microalgal biofilms: (1) as a post-treatment; (2) as a second stage of wastewater treatment, after a first stage in which COD is removed by activated sludge; and (3) in a symbiotic microalgal/heterotrophic system. The analysis showed that in the Netherlands, the area requirements for these three scenarios range from 0.32 to 2.1 m2 per person equivalent. Moreover, it was found that it was not possible to simultaneously remove all nitrogen and phosphorus from the wastewater, because of the nitrogen:phosphorus ratio in the wastewater. Phosphorus was limiting in the post-treatment scenario, while nitrogen was limiting in the two other scenarios. Furthermore, a substantial amount of microalgal biomass was produced, ranging from 13 to 59 g per person equivalent per day. These findings show that microalgal biofilm systems hold large potential as seasonal wastewater treatment systems and that it is worthwhile to investigate these systems further",
keywords = "afvalwaterbehandeling, biofilms, algen, biologische waterzuiveringsinstallaties, vergelijkend onderzoek, volgorden, haalbaarheidsstudies, heterotrofe micro-organismen, stikstof, fosfor, verwijdering, biomassa productie, biobased economy, waste water treatment, biofilms, algae, biological water treatment plants, comparative research, sequences, feasibility studies, heterotrophic microorganisms, nitrogen, phosphorus, removal, biomass production, biobased economy, marine-phytoplankton, chemical-composition, chlorella-vulgaris, nitrate uptake, algal biofilm, growth, photobioreactor, photosynthesis",
author = "N.C. Boelee and H. Temmink and M. Janssen and C.J.N. Buisman and R.H. Wijffels",
year = "2012",
doi = "10.3390/w4020460",
language = "English",
volume = "4",
pages = "460--473",
journal = "Water",
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Scenario Analysis of Nutrient Removal from Municipal Wastewater by Microalgal Biofilms. / Boelee, N.C.; Temmink, H.; Janssen, M.; Buisman, C.J.N.; Wijffels, R.H.

In: Water, Vol. 4, No. 2, 2012, p. 460-473.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Scenario Analysis of Nutrient Removal from Municipal Wastewater by Microalgal Biofilms

AU - Boelee, N.C.

AU - Temmink, H.

AU - Janssen, M.

AU - Buisman, C.J.N.

AU - Wijffels, R.H.

PY - 2012

Y1 - 2012

N2 - Microalgae can be used for the treatment of municipal wastewater. The application of microalgal biofilms in wastewater treatment systems seems attractive, being able to remove nitrogen, phosphorus and COD from wastewater at a short hydraulic retention time. This study therefore investigates the area requirement, achieved effluent concentrations and biomass production of a hypothetical large-scale microalgal biofilm system treating municipal wastewater. Three scenarios were defined: using microalgal biofilms: (1) as a post-treatment; (2) as a second stage of wastewater treatment, after a first stage in which COD is removed by activated sludge; and (3) in a symbiotic microalgal/heterotrophic system. The analysis showed that in the Netherlands, the area requirements for these three scenarios range from 0.32 to 2.1 m2 per person equivalent. Moreover, it was found that it was not possible to simultaneously remove all nitrogen and phosphorus from the wastewater, because of the nitrogen:phosphorus ratio in the wastewater. Phosphorus was limiting in the post-treatment scenario, while nitrogen was limiting in the two other scenarios. Furthermore, a substantial amount of microalgal biomass was produced, ranging from 13 to 59 g per person equivalent per day. These findings show that microalgal biofilm systems hold large potential as seasonal wastewater treatment systems and that it is worthwhile to investigate these systems further

AB - Microalgae can be used for the treatment of municipal wastewater. The application of microalgal biofilms in wastewater treatment systems seems attractive, being able to remove nitrogen, phosphorus and COD from wastewater at a short hydraulic retention time. This study therefore investigates the area requirement, achieved effluent concentrations and biomass production of a hypothetical large-scale microalgal biofilm system treating municipal wastewater. Three scenarios were defined: using microalgal biofilms: (1) as a post-treatment; (2) as a second stage of wastewater treatment, after a first stage in which COD is removed by activated sludge; and (3) in a symbiotic microalgal/heterotrophic system. The analysis showed that in the Netherlands, the area requirements for these three scenarios range from 0.32 to 2.1 m2 per person equivalent. Moreover, it was found that it was not possible to simultaneously remove all nitrogen and phosphorus from the wastewater, because of the nitrogen:phosphorus ratio in the wastewater. Phosphorus was limiting in the post-treatment scenario, while nitrogen was limiting in the two other scenarios. Furthermore, a substantial amount of microalgal biomass was produced, ranging from 13 to 59 g per person equivalent per day. These findings show that microalgal biofilm systems hold large potential as seasonal wastewater treatment systems and that it is worthwhile to investigate these systems further

KW - afvalwaterbehandeling

KW - biofilms

KW - algen

KW - biologische waterzuiveringsinstallaties

KW - vergelijkend onderzoek

KW - volgorden

KW - haalbaarheidsstudies

KW - heterotrofe micro-organismen

KW - stikstof

KW - fosfor

KW - verwijdering

KW - biomassa productie

KW - biobased economy

KW - waste water treatment

KW - biofilms

KW - algae

KW - biological water treatment plants

KW - comparative research

KW - sequences

KW - feasibility studies

KW - heterotrophic microorganisms

KW - nitrogen

KW - phosphorus

KW - removal

KW - biomass production

KW - biobased economy

KW - marine-phytoplankton

KW - chemical-composition

KW - chlorella-vulgaris

KW - nitrate uptake

KW - algal biofilm

KW - growth

KW - photobioreactor

KW - photosynthesis

U2 - 10.3390/w4020460

DO - 10.3390/w4020460

M3 - Article

VL - 4

SP - 460

EP - 473

JO - Water

JF - Water

SN - 2073-4441

IS - 2

ER -