Formation, characterization and mathematical modeling of the by Bing-Jie Ni

By Bing-Jie Ni

Aerobic granular sludge know-how will play an enormous position as an leading edge know-how substitute to the current activated sludge approach in commercial and municipal wastewater remedy within the close to destiny. meant to fill the gaps within the reports of cardio granular sludge, this thesis comprehensively investigates the formation, characterization and mathematical modeling of cardio granular sludge, via integrating the method engineering instruments and complex molecular microbiology. The examine result of this thesis contributed considerably to the development of figuring out and optimization of the bacterial granulation methods, the following iteration of know-how for reasonable organic wastewater treatment.

Dr. Bing-Jie Ni works at complicated Water administration Centre (AWMC) of The collage of Queensland, Australia.

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Additional info for Formation, characterization and mathematical modeling of the aerobic granular sludge (Springer Theses)

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Therefore, this study aims at formulating a mathematical model to describe the growth process of aerobic granules in SBRs. Using the model established, the aerobic granulation process in terms of mean radius could be characterized and the granulation mechanisms could be understood better. 1 General Description The growth of aerobic granules after the initial cell-to-cell self-attachment is similar to the growth of biofilm, and is the net result of interactions between bacterial growth and detachment.

Appl. Microbiol. Biotechnol. : Extraction of extracellular polymers from activated sludge using a cation exchange resin. Water Res. : Impact of the repetition of oxygen deficiencies on the filamentous bacteria proliferation in activated sludge. Water Res. : Biological Wastewater Treatment, 2nd edn. pp. 282– 284. : Removal of bulk dissolved organic carbon (DOC) and trace organic compounds by bank filtration and artificial recharge. Water Res. : Conservation and transformation of energy by bacterial membranes.

2 Model Development 37 JC ¼ ÀADC oC oz ð3:8Þ where DC is the diffusion coefficient of the dissolved component in the liquid phase of the granule, JC is amount of the conserved quantity transported per unit time, and A is the granule surface area. 8 is used for all the dissolved components, including the dissolved oxygen in the granular system. In the present study, detachment is also taken into account, as it plays a crucial rule in the granulation process. In SBRs, the shear force applied to granules is attributed to the relative velocities of gas and liquid as well as collisions among granules.

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