tailieunhanh - Bài giảng công nghệ môi trường_25

Tham khảo bài viết 'bài giảng công nghệ môi trường_25', khoa học tự nhiên, công nghệ môi trường phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | I VAN LANG UNIVERSITY PARTMENT OF ENVIRONMENTAL TECHNOLOGY AND MANAGEMENT SPECIALIZED ENGLISH - SEMESTER 5 Chapter 25 FUNDAMENTALS OF BIOLOGICAL WASTEWATER TREATMENT Microbial Growth Kinetics Dr. Tran Thi My Dieu CONTENTS OF SECTION Microbial growth kinetics terminology Rate of utilization of soluble substrate Rate of soluble substrate production from biodegradable particulate organic matter Rate of biomass growth with soluble substrate Kinetic coefficients Rate of oxygen uptake effect of temperature Total VSS and active biomass biomass yield I DENTEMA MICROBIAL GROWTH KINETICS TERMINOLOGY MICROBIAL GROWTH KINETICS TERMINOLOGY Kinetics of microbial growth govern the oxidation of substrate and the production of biomass Biodegradable soluble COD bsCOD Substrates Biodegradable COD bCOD or UBOD The biomass solids in a bioreactor are measured as Substrates Comprised of soluble colloidal particulate VAN LANG UNIVERSITY biodi tents DENTEMA Total suspended solid TSS and volatile suspended solid VSS MICROBIAL GROWTH KINETICS TERMINOLOGY MICROBIAL GROWTH KINETICS TERMINOLOGY The mixture of solids and wastewater in bioreactor The solids are comprised of Biomass nbVSS inert inorganic TSS iTSS Mixed liquor suspended solid MLSS From influent Mixed liquor volatile suspended solid MLVSS nbVSS Produced as cell debris from endogenous repiration iTSS originates in the influent DENTEMA 1 RATE OF UTILIZATION OF SOLUBLE SUBSTRATE RATE OF UTILIZATION OF SOLUBLE SUBSTRATE _ kXS ĩsu Ks S Michaelis-Menten equation Monod equation rsu rate of substrate concentration change due to utilization g k maximum specific substrate utilization rate g substrate g X biomass microorganism concentration g m3 S growth-limiting substrate concentration in solution g m3 Ks half-velocity constant substrate concentration at one-half the maximum specific substrate utilization rate g m3 RATE OF UTILIZATION OF SOLUBLE SUBSTRATE RATE OF UTILIZATION OF SOLUBLE SUBSTRATE _ kXS ĩsu .