COD fractionation and biological treatability of mixed industrial wastewaters

Fall, Cheikh; Millán-Lagunas, E.; Bâ, Khalidou M.; Gallego-Alarcón, Iván; García-Pulido, Daury; Díaz-Delgado, Carlos; Solís-Morelos, Carlos

doi:10.1016/j.jenvman.2012.08.032

Cited by 15 publications

(9 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Till now, several physical-chemical methods have been employed to fractionate the COD fractions via measurement of the soluble COD and biodegradable COD values of the influent and effluent of the WWTP (Roeleveld and van Loosdrecht, 2002;Gatti et al, 2010;Fall et al, 2012). The suitability of these methods is related to reproducibility and practical applicability.…”

Section: Cod Fractionation Using Physical-chemical Methodsmentioning

confidence: 99%

“…However, one of the main differences between the various fractionation methods is the way by which the readily biodegradable fraction (S S ) or the soluble inert fraction (S I ) is determined. Many previous studies have reported that respirometry is the most suitable method to measure the readily biodegradable fraction (S S ) (Mathieu and Etienne, 2000;Karahan et al, 2008;Fall et al, 2012), while other studies have claimed that simplified physical-chemical methods, with the advantages of being faster and easier than respirometry methods, can be used to determine COD fractions. Therefore, this review aims to summarize the current knowledge on using both physical-chemical and respirometry methods for COD fractionation in order to elucidate the advantages and drawbacks of these methods in the characterization of OM in wastewater.…”

Section: Characterization Based On the Biodegradabilitymentioning

confidence: 99%

See 1 more Smart Citation

A critical review on characterization strategies of organic matter for wastewater and water treatment processes

Trần

Ngo

Urase

et al. 2015

Bioresource Technology

107

View full text Add to dashboard Cite

Section: Cod Fractionation Using Physical-chemical Methodsmentioning

confidence: 99%

Section: Characterization Based On the Biodegradabilitymentioning

confidence: 99%

A critical review on characterization strategies of organic matter for wastewater and water treatment processes

Trần

Ngo

Urase

et al. 2015

Bioresource Technology

107

View full text Add to dashboard Cite

“…Based on a literature review Author enhances the importance of computer modeling of activated-sludge process during design of new and optimization of existing wastewater plants. Readers who are interested in other interesting research results dealing with modeling of activated sludge tanks are referred [10][11][12][13][14].…”

Section: Modeling Of the Activated Sludge Processmentioning

confidence: 99%

Nonlinear modeling of activated sludge process using the Hammerstein-Wiener structure

Frącz

2016

E3S Web Conf.

View full text Add to dashboard Cite

Abstract. The paper regards to physical model of the Activated Sludge Process, which is a part of the wastewater treatment. The aim of the study was to describe nitrogen transformation process and the demand of chemical fractions, involved in the ASP process. Moreover, the non-linear relationship between the flow of wastewater and the consumed electrical energy, used by the blowers, was determined. Such analyses are important from the economical and environmental point of view. Assuming that the total power does not change the blower is charging during a year an energy amount of approx. 613 MW. This illustrates in particular the scale of the demand for energy consumption in the biological aeration unit. The aim is to minimize the energy consumption through first building a model of ASP and then through optimization of the overall process by modifying chosen parameter in numerical simulations. In this paper example measurement and analysis results of nitrite and ammonium nitrogen concentrations in the aeration reactor and the active power consumed by blowers for the aeration process were presented. Further the ASP modeling procedure, which uses the Hammerstein-Wiener structure and example verification results were presented. Based on the achieved results it was stated that the developed set of methodologies may be used to improve and expand the overriding control system for system for wastewater treatment plant.

show abstract

“…autotrophic nitrifying biomass X AUT , phosphorus-accumulating microorganisms X PAO and internal storage products of phosphorus-accumulating organisms X PHA ) are assumed to be less than 1 % of total COD, and usually, they are not measured (Pasztor et al 2009). The fractions can be quantified with a range of methods, including a combination of physical, analytical (S F ), respirometric tests (X H , S S , S I ), simulation (X I ) and mass balance calculations (X S ) (Dulekgurgen et al 2006;Mhlanga et al 2009;Mąkinia 2010;Xu and Hultman 1996;Fall et al 2012). The soluble inert fraction (S I ) can also be determined directly by analysis of coagulated and filtered effluent from an activated sludge system (Mamais et al 1993).…”

Section: Industrial Effluent Characteristicsmentioning

confidence: 99%

Determination of permissible industrial pollution load at a municipal wastewater treatment plant

Mikosz

2014

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Industrial wastewater discharged to a municipal sewage system may often be a source of valuable organic substrate for biological processes at a municipal wastewater treatment plant (WWTP). In such situations, the pretreatment of wastewater at an industrial plant should be minimized, in order to maintain the favourable structure of organic material in influent to a WWTP. A frequent problem is how to determine the maximum industrial pollution load that can be discharged, without compromising the treatment capability of a WWTP. This article presents a method based on computer simulation that can be used for this purpose. As a result, the method produced the permissible industrial pollution load that could be discharged safely, and the relationship between chemical oxygen demand (COD) load and required biomass concentration as a function of process temperature. The method was tested at a fruit-processing plant and municipal WWTP, located in Poland. The results of this study have shown that the bioreactor should be operated at a biomass concentration varying between 3,600 and 5,400 g m -3 in function of the process temperature. Under such operational conditions, the WWTP would be able to accept the permissible industrial COD load of above 9,000 kg COD d -1 for a wide range of temperatures, namely 14-19°C. If the WWTP was operated at a constant biomass concentration, its permissible industrial COD load would be reduced to 7,500-9,000 kg COD d -1 . The method can be applied to other municipal WWTPs with activated sludge that receive industrial effluents.

show abstract

COD fractionation and biological treatability of mixed industrial wastewaters

Cited by 15 publications

References 25 publications

A critical review on characterization strategies of organic matter for wastewater and water treatment processes

A critical review on characterization strategies of organic matter for wastewater and water treatment processes

Nonlinear modeling of activated sludge process using the Hammerstein-Wiener structure

Determination of permissible industrial pollution load at a municipal wastewater treatment plant

Contact Info

Product

Resources

About