Bioflocculation of grey water for improved energy recovery within decentralized sanitation concepts

L. Hernandez Leal; B.G. Temmink; G. Zeeman; C.J.N. Buisman

doi:10.1016/j.biortech.2010.07.047

Bioflocculation of grey water for improved energy recovery within decentralized sanitation concepts

L. Hernandez Leal, B.G. Temmink, G. Zeeman, C.J.N. Buisman

Research output: Contribution to journal › Article › Academic › peer-review

72 Citations (Scopus)

Abstract

Bioflocculation of grey water was tested with a lab-scale membrane bioreactor in order to concentrate the COD. Three concentration factors were tested based on the ratio of sludge retention time (SRT) and hydraulic retention time (HRT): 3, 8 and 12. COD concentration factor was up to 7.1, achieving a final concentration of 7.2 g COD L(-1). Large fractions of suspended COD were recovered in the concentrate (57%, 81% and 82% at SRT/HRT ratios of 3, 8 and 12, respectively) indicating a strong bioflocculation of grey water. A maximum of 11% of COD mineralization of grey water was measured at the longest SRT tested (1 d). The integration of bioflocculation of grey water in decentralized sanitation concepts may increase the overall production of methane by 73%, based on the biogas produced by black water only. Therefore, bioflocculation is a promising grey water pre-treatment step for energy recovery within decentralized sanitation concepts

Original language	English
Pages (from-to)	9065-9070
Journal	Bioresource Technology
Volume	101
Issue number	23
DOIs	https://doi.org/10.1016/j.biortech.2010.07.047
Publication status	Published - 2010

Keywords

reactor
fate

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2010.07.047

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title = "Bioflocculation of grey water for improved energy recovery within decentralized sanitation concepts",

abstract = "Bioflocculation of grey water was tested with a lab-scale membrane bioreactor in order to concentrate the COD. Three concentration factors were tested based on the ratio of sludge retention time (SRT) and hydraulic retention time (HRT): 3, 8 and 12. COD concentration factor was up to 7.1, achieving a final concentration of 7.2 g COD L(-1). Large fractions of suspended COD were recovered in the concentrate (57%, 81% and 82% at SRT/HRT ratios of 3, 8 and 12, respectively) indicating a strong bioflocculation of grey water. A maximum of 11% of COD mineralization of grey water was measured at the longest SRT tested (1 d). The integration of bioflocculation of grey water in decentralized sanitation concepts may increase the overall production of methane by 73%, based on the biogas produced by black water only. Therefore, bioflocculation is a promising grey water pre-treatment step for energy recovery within decentralized sanitation concepts",

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issn = "0960-8524",

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T1 - Bioflocculation of grey water for improved energy recovery within decentralized sanitation concepts

AU - Hernandez Leal, L.

AU - Temmink, B.G.

AU - Zeeman, G.

AU - Buisman, C.J.N.

PY - 2010

Y1 - 2010

N2 - Bioflocculation of grey water was tested with a lab-scale membrane bioreactor in order to concentrate the COD. Three concentration factors were tested based on the ratio of sludge retention time (SRT) and hydraulic retention time (HRT): 3, 8 and 12. COD concentration factor was up to 7.1, achieving a final concentration of 7.2 g COD L(-1). Large fractions of suspended COD were recovered in the concentrate (57%, 81% and 82% at SRT/HRT ratios of 3, 8 and 12, respectively) indicating a strong bioflocculation of grey water. A maximum of 11% of COD mineralization of grey water was measured at the longest SRT tested (1 d). The integration of bioflocculation of grey water in decentralized sanitation concepts may increase the overall production of methane by 73%, based on the biogas produced by black water only. Therefore, bioflocculation is a promising grey water pre-treatment step for energy recovery within decentralized sanitation concepts

AB - Bioflocculation of grey water was tested with a lab-scale membrane bioreactor in order to concentrate the COD. Three concentration factors were tested based on the ratio of sludge retention time (SRT) and hydraulic retention time (HRT): 3, 8 and 12. COD concentration factor was up to 7.1, achieving a final concentration of 7.2 g COD L(-1). Large fractions of suspended COD were recovered in the concentrate (57%, 81% and 82% at SRT/HRT ratios of 3, 8 and 12, respectively) indicating a strong bioflocculation of grey water. A maximum of 11% of COD mineralization of grey water was measured at the longest SRT tested (1 d). The integration of bioflocculation of grey water in decentralized sanitation concepts may increase the overall production of methane by 73%, based on the biogas produced by black water only. Therefore, bioflocculation is a promising grey water pre-treatment step for energy recovery within decentralized sanitation concepts

KW - reactor

KW - fate

U2 - 10.1016/j.biortech.2010.07.047

DO - 10.1016/j.biortech.2010.07.047

M3 - Article

SN - 0960-8524

VL - 101

SP - 9065

EP - 9070

JO - Bioresource Technology

JF - Bioresource Technology

IS - 23

ER -

Bioflocculation of grey water for improved energy recovery within decentralized sanitation concepts

Abstract

Keywords

UN SDGs

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