Development and Validation of a Dynamic Complex Model for Ammonia Removal by Gas-Phase Biofiltration
نویسندگان
چکیده
In this study a general dynamic biofiltration model to describe ammonia removal in a gas-phase biofilter is developed. The mathematical equations are based on discretized mass balances and detailed nitrification kinetics that include inhibitory effects caused by free ammonia (FA) and free nitrous acid (FNA). The model was able to predict experimental results operation under different loading rates (from 3.2 to 13.2 g NH3 h m). In particular the model was capable of reproducing inhibition behavior caused by high inlet ammonia concentrations.
منابع مشابه
A detailed model of a biofilter for ammonia removal: Model parameters analysis and model validation
A dynamic model to describe ammonia removal in a gas-phase biofilter was developed. The mathematical model is based on discretized mass balances and detailed nitrification kinetics that include inhibitory effects caused by free ammonia (FA) and free nitrous acid (FNA). The m I a s ©
متن کاملبهکارگیری ترم رطوبت در مدلسازی دینامیک فرآیند تصفیه هوای آلوده به هگزان
Introduction: Biofiltration of volatile organic compounds is a biological method in which air containing contaminant is passed through a packed bed and the pollutant is transferred from gas phase to biofilm where it is degraded by microorganisms. Degrading microbial activity is strongly influenced by moisture content of bed so that it is considered as the most important factor for controlling o...
متن کاملOptimal conditions for the biological removal of ammonia from wastewater of a petrochemical plant using the response surface methodology
High concentrations of nitrogen compounds, such as ammonia observed in the petrochemical industry, are the major environmental pollutants. Therefore, effective and inexpensive methods are needed for its treatment. Biological treatment of various pollutants is a low cost and biocompatible replacement for current physico-chemical systems. The use of aquatic plants is an effective way to absorb th...
متن کاملMathematical modeling of a fixed bed chromatographic reactor for Fischer Tropsch synthesis
In this research, Fischer Tropsch synthesis (FTS) has been modeled in the fixed bed chromatographic reactor for the first time by applying a rather complex dispersed plug flow model for fluid phase and linear driving force (LDF) model for adsorbent. Model equations are dynamic, multi-component, non-linear and heterogeneous including reaction and adsorption simultaneously Complex kinetics fo...
متن کاملLivestock Air Treatment Using Pva‐coated Powdered Activated Carbon Biofilter
This study evaluated the efficacy of polyvinyl alcohol (PVA)‐coated powdered activated carbon particles as a biofiltration medium. This material exhibited excellent properties as a biofiltration medium with a water holding capacity of 1.39 g H2O/g‐dry PVA; wet porosity of 0.53; and significantly lower pressure drop than that of commonly reported biofilter media such as compost. Bench‐scale biof...
متن کامل