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(10)
Anaerobic Digestion
Case Study
Charge Density
Conditional Model
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New generic mathematical model for WWTP sludge digesters operating under aerobic and anaerobic conditions: Model building and experimental verification
New generic mathematical model for WWTP sludge digesters operating under aerobic and anaerobic conditions: Model building and experimental verificatio
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New generic mathematical model for WWTP sludge digesters operating under aerobic and anaerobic conditions: Model building and experimental verification
(
Citations: 6
)
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M. de Gracia
,
P. Grau
,
E. Huete
,
J. Gómez
,
J. L. GarcíaHeras
,
E. Ayesa
This paper presents a new
mathematical model
developed to reproduce the performance of a generic sludge digester working either under aerobic or anaerobic operational conditions. The digester has been modelled as two completely mixed tanks associated with gaseous and liquid volumes. The conversion model has been developed based on a plant wide modelling methodology (PWM) and comprises biochemical transformations, physicochemical reactions and thermodynamic considerations. The model predicts the reactor temperature and the temporary evolution of an extensive vector of model components which are completely defined in terms of elemental mass fractions (C, H, O, N and P) and charge density. Thus, the comprehensive definition of the model components guarantees the continuity of elemental mass and charge in all the model transformations and between any two systems defined by the model. The aim of the generic digester model is to overcome the problems that arise when trying to connect aerobic and
anaerobic digestion
processes working in series or to connect water and sludge lines in a WWTP. The modelling methodology used has allowed the systematic construction of the biochemical model which acts as an initial illustrative example of an application that has been experimentally verified. The variation of the temperature is also predicted based on a thermal dynamic model. Real data from four different facilities and a straightforward calibration have been used to successfully verify the model predictions in the cases of mesophilic and thermophilic
anaerobic digestion
as well as autothermal thermophilic aerobic digestion (ATAD). The large amount of data from the full scale ATAD and the
anaerobic digestion
pilot plants, all of them working under different conditions, has allowed the validation of the model for that case study.
Journal:
Water Research  WATER RES
, vol. 43, no. 18, pp. 46264642, 2009
DOI:
10.1016/j.watres.2009.07.014
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Citation Context
(3)
...Autothermal Thermophilic Aerobic Digestion (ATAD) has a selfheating ability and removes pathogens with exoenzymes of theromphiles at a temperature of at least 55�� [
5
].There are two roles in the ATAD process, one is bacterial disintegration and the total suspended solids (TSS) elimination caused by some lyoenzyme functions; and another kind of role playing the crucial function is deactivation of the disease germ...
Jingming Liu
,
et al.
Study on Pretreatment and Kinetics of Waste Klebsiella Pneumoniae by t...
...Studies to find a universal model to describe batch and continuous aerobic and anaerobic digestion processes are continuing
1–16
...
M. Ghorbani
,
et al.
Application of the International Water Association Activated Sludge Mo...
...wastewater treatment plant can be classified as a complex system due to its nonlinear dynamics, large uncertainty in uncontrolled inputs and structure multiple time scales of the dynamics, and multi inputoutput structure [
1
]...
Zhaozhao Zhang
,
et al.
Adaptive controller based on flexistructure neural network for dissol...
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(
Citations: 52
)
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Citations
(6)
Estrogen inhibits the early development of mouse follicles through regulating the expression of Kit ligand
Dong Huansheng
,
Pan Qingjie
,
Zhang Hanqiong
,
Zhang Lianjun
,
Chen Bo
,
Yue Wenbin
Journal:
Biochemical and Biophysical Research Communications  BIOCHEM BIOPHYS RES COMMUN
, vol. 410, no. 3, pp. 659664, 2011
Study on Pretreatment and Kinetics of Waste Klebsiella Pneumoniae by the Autothermal Thermophilic Aerobic Digestion Process
Jingming Liu
,
Jian Lin
,
Yanyan Chen
,
Zhirong Zhu
,
Ji Ma
Conference:
International Conference on Measuring Technology and Mechatronics Automation  ICMTMA
, 2011
Application of the International Water Association Activated Sludge Models to describe aerobic sludge digestion
M. Ghorbani
,
C. Eskicioglu
Journal:
Environmental Technology  ENVIRON TECHNOL
, vol. aheadofp, no. aheadofp, pp. 116, 2011
Adaptive dissolved oxygen control based on dynamic structure neural network
HongGui Han
,
JunFei Qiao
Journal:
Applied Soft Computing  ASC
, vol. 11, no. 4, pp. 38123820, 2011
Adaptive controller based on flexistructure neural network for dissolved oxygen control
Zhaozhao Zhang
,
Wei Guo
Conference:
International Conference on Intelligent Control and Information Processing  ICICIP
, 2010