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Kinetic Study and Modeling of Aerobic Biological Oxidation of Organic Wastewater
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M. V. Karkare
Veröffentlicht/Copyright:
8. April 2010
The complex organic wastewater from agrochemical industry consists of a large number of solids and dissolved compounds. For the design and scale-up of any activated sludge reactor, it is desirable to know the kinetics of oxidation, which strongly depends upon the nature of wastewater and the microorganism. In the present work, the kinetics of aerobic biological oxidation of an agrochemical plant waste is investigated, having initial COD of 800-1200 mg/L. Experiments are performed at five different dissolved oxygen (DO) levels; viz. (i) 1.5 to 2.5 mg/L, (ii) 2.5 to 3.5 mg/L, (iii) 3.5 to 4.5 mg/L, (iv) 4.5 to 5.5 mg/L, and (v) 5.5 to 6.5 mg/L. For each DO level five mixed liquor suspended solids (MLSS) are studied in the range of 6000-20000 mg/L. The maximum percentage reduction of COD is 74.1%, 74.8%, 89.9%, 73.3% and 89.6% at different DO levels of 1.5-2.5 mg/L, 2.5 to 3.5 mg/L, 3.5 to 4.5 mg/L, 4.5 to 5.5 mg/L, and 5.5 to 6.5 mg/L and MLSS concentrations from 6000 to 20000 mg/L, respectively. An attempt is made to propose the kinetics of substrate utilization that does not actively support growth of organism. A kinetic model is proposed to understand the effect of DO and MLSS concentration.
Published Online: 2010-4-8
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
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Schlagwörter für diesen Artikel
activated sludge;
biological oxidation;
kinetics;
complex organic wastewater
Artikel in diesem Heft
- Article
- Influence of Temperature and Pressure on the Non-Catalytic Partial Oxidation of Natural Gas
- CFD Simulation of Hydraulics of Sieve Trays with Gas Mal-Distribution
- Experimental Measurement and Modeling of Diffusion Anomalies in a CMS Membrane
- Moisture Diffusivity and Energy Consumption during Microwave Drying of Plaster of Paris
- Optimization studies on Biosorption of Copper (II) by Crab Shell Using Response Surface Methodology(RSM)
- Simulation and Control of a Commercial Double Effect Evaporator: Tomato Juice
- Novel PCA-Based Technique for Identification of Dominant Variables for Partial Control
- Search for Optimal Design of Multiproduct Batch Plants under Uncertain Demand using Gaussian Process Modeling Solved by Heuristics Methods
- Adsorption of Crude Oil Using Meshed Groundnut Husk
- Revisiting Reaction-Diffusion Process in a Porous Catalyst: Improving the Adomian Solution
- Combining Design of Experiments Techniques, Connectionist Models, and Optimization for the Efficient Design of New Product Formulations
- Simulation and Analysis of Multi-scale Transport Phenomena and Catalytic Reactions in SOFC Anodes
- Utilization of MATLAB to Simulate Kinetics of Transesterification of Palm Oil-Based Methyl Esters with Trimethylolpropane for Biodegradable Synthetic Lubricant Synthesis
- A Fault Detection and Diagnosis Strategy for Batch/Semi-Batch Processes
- Kinetic Study and Modeling of Aerobic Biological Oxidation of Organic Wastewater
- Conceptual Screening of Reactive Extraction Processing Options
- Production of p-Anisic Acid by Modified Williamson Etherification Reaction Using Design of Experiments
- Empty Spray Sections of Vacuum Towers: Heat and Mass Transfer with a CFD approach
- Influence of Phase Compositions, pH and Temperature on Bovine Serum Albumin Partitioning in Aqueous Biphasic System
- Separation of Organic Chlorine Compounds through Batch Distillation Process
- Modeling of Infrared Drying of Polymer Solutions
- An Object-Oriented Graphics Interface Simulator for Analysis of Fischer-Tropsch Synthesis
- CFD Simulation of Wall Effects in Flow Past a Square Cylinder in a Stationary and Moving Plane Channel
- Axial Variation of Mass Transfer Volumetric Coefficients in Bubble Column Bioreactors
- Thermodynamics of Supercritical Fluid Extraction of Some Dyes and Pharmaceutical Compounds Using the Weighting Matrix Approach
- Study of Numerous Injections into Horizontal Flow Stream at Low Temperature
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- Isotherm and Kinetics Modeling of Fluoride Removal from Industrial Effluent by Alumina
- Effect of Temperature and Catalyst Concentrations on the Thermal Properties of Polyamide Adhesives at Low Operating Pressure
- Microfluidics of Nanodrug Delivery at Different Angles of Drug Injection
- Optimization of Process Variables for Amylase Production Using Agro Residual Wastes by Taguchi Methodology
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