Mathematical Modeling and Analysis of Wastewater Treatment Plant Using the Cannibal Process

Jianglei Xiong, Michelle N. Young, Andrew K. Marcus, Steven W. Van Ginkel, Bruce E. Rittmann

Research output: Contribution to journalArticle

Abstract

The Combined Activated Sludge Anaerobic Digestion Model (CASADM) was configured to represent the operational results of a full-scale Cannibal wastewater treatment plant that operated over a 2-year period and had a net sludge yield that was low, approximately 0.21 g volatile suspended solids/g chemical oxygen demand (g VSS/g COD) removed based on the model. CASADM accurately described available information on effluent quality and mixed-liquor volatile suspended solids (MLVSS) concentrations in each tank. Modeling results led to important insights into what led to the low net sludge yield of this Cannibal plant. For example, widespread net decay or slow growth [negative or very large positive values of solids retention times (SRTs)] of biomass caused total active biomass to be only 13%-21% of the MLVSS, and about 28% of the total input COD was converted to CH4 in the system. Input of active biomass and a low sludge-wasting rate proved to be key factors causing net decay or slow growth of active biomass, which, when combined with significant CH4 production, led to low net sludge yield.

Original languageEnglish (US)
Article number04019108
JournalJournal of Environmental Engineering (United States)
Volume146
Issue number2
DOIs
StatePublished - Feb 1 2020

Fingerprint

Wastewater treatment
Biomass
sludge
Anaerobic digestion
biomass
modeling
activated sludge
Chemical oxygen demand
chemical oxygen demand
Effluents
effluent
wastewater treatment plant
analysis
anaerobic digestion

Keywords

  • Biomass yield
  • Cannibal process
  • Extracellular polymeric substances (EPS)
  • Mathematical modeling
  • Sludge reduction
  • Solids retention time

ASJC Scopus subject areas

  • Environmental Engineering
  • Civil and Structural Engineering
  • Environmental Chemistry
  • Environmental Science(all)

Cite this

Mathematical Modeling and Analysis of Wastewater Treatment Plant Using the Cannibal Process. / Xiong, Jianglei; Young, Michelle N.; Marcus, Andrew K.; Van Ginkel, Steven W.; Rittmann, Bruce E.

In: Journal of Environmental Engineering (United States), Vol. 146, No. 2, 04019108, 01.02.2020.

Research output: Contribution to journalArticle

@article{9867f3ef6eca447299f70156a89aaccc,
title = "Mathematical Modeling and Analysis of Wastewater Treatment Plant Using the Cannibal Process",
abstract = "The Combined Activated Sludge Anaerobic Digestion Model (CASADM) was configured to represent the operational results of a full-scale Cannibal wastewater treatment plant that operated over a 2-year period and had a net sludge yield that was low, approximately 0.21 g volatile suspended solids/g chemical oxygen demand (g VSS/g COD) removed based on the model. CASADM accurately described available information on effluent quality and mixed-liquor volatile suspended solids (MLVSS) concentrations in each tank. Modeling results led to important insights into what led to the low net sludge yield of this Cannibal plant. For example, widespread net decay or slow growth [negative or very large positive values of solids retention times (SRTs)] of biomass caused total active biomass to be only 13{\%}-21{\%} of the MLVSS, and about 28{\%} of the total input COD was converted to CH4 in the system. Input of active biomass and a low sludge-wasting rate proved to be key factors causing net decay or slow growth of active biomass, which, when combined with significant CH4 production, led to low net sludge yield.",
keywords = "Biomass yield, Cannibal process, Extracellular polymeric substances (EPS), Mathematical modeling, Sludge reduction, Solids retention time",
author = "Jianglei Xiong and Young, {Michelle N.} and Marcus, {Andrew K.} and {Van Ginkel}, {Steven W.} and Rittmann, {Bruce E.}",
year = "2020",
month = "2",
day = "1",
doi = "10.1061/(ASCE)EE.1943-7870.0001627",
language = "English (US)",
volume = "146",
journal = "Journal of Environmental Engineering, ASCE",
issn = "0733-9372",
publisher = "American Society of Civil Engineers (ASCE)",
number = "2",

}

TY - JOUR

T1 - Mathematical Modeling and Analysis of Wastewater Treatment Plant Using the Cannibal Process

AU - Xiong, Jianglei

AU - Young, Michelle N.

AU - Marcus, Andrew K.

AU - Van Ginkel, Steven W.

AU - Rittmann, Bruce E.

PY - 2020/2/1

Y1 - 2020/2/1

N2 - The Combined Activated Sludge Anaerobic Digestion Model (CASADM) was configured to represent the operational results of a full-scale Cannibal wastewater treatment plant that operated over a 2-year period and had a net sludge yield that was low, approximately 0.21 g volatile suspended solids/g chemical oxygen demand (g VSS/g COD) removed based on the model. CASADM accurately described available information on effluent quality and mixed-liquor volatile suspended solids (MLVSS) concentrations in each tank. Modeling results led to important insights into what led to the low net sludge yield of this Cannibal plant. For example, widespread net decay or slow growth [negative or very large positive values of solids retention times (SRTs)] of biomass caused total active biomass to be only 13%-21% of the MLVSS, and about 28% of the total input COD was converted to CH4 in the system. Input of active biomass and a low sludge-wasting rate proved to be key factors causing net decay or slow growth of active biomass, which, when combined with significant CH4 production, led to low net sludge yield.

AB - The Combined Activated Sludge Anaerobic Digestion Model (CASADM) was configured to represent the operational results of a full-scale Cannibal wastewater treatment plant that operated over a 2-year period and had a net sludge yield that was low, approximately 0.21 g volatile suspended solids/g chemical oxygen demand (g VSS/g COD) removed based on the model. CASADM accurately described available information on effluent quality and mixed-liquor volatile suspended solids (MLVSS) concentrations in each tank. Modeling results led to important insights into what led to the low net sludge yield of this Cannibal plant. For example, widespread net decay or slow growth [negative or very large positive values of solids retention times (SRTs)] of biomass caused total active biomass to be only 13%-21% of the MLVSS, and about 28% of the total input COD was converted to CH4 in the system. Input of active biomass and a low sludge-wasting rate proved to be key factors causing net decay or slow growth of active biomass, which, when combined with significant CH4 production, led to low net sludge yield.

KW - Biomass yield

KW - Cannibal process

KW - Extracellular polymeric substances (EPS)

KW - Mathematical modeling

KW - Sludge reduction

KW - Solids retention time

UR - http://www.scopus.com/inward/record.url?scp=85076202052&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85076202052&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)EE.1943-7870.0001627

DO - 10.1061/(ASCE)EE.1943-7870.0001627

M3 - Article

AN - SCOPUS:85076202052

VL - 146

JO - Journal of Environmental Engineering, ASCE

JF - Journal of Environmental Engineering, ASCE

SN - 0733-9372

IS - 2

M1 - 04019108

ER -