This project is devoted for the characterization of general parameters of domestic waste water collected from the campus of NIT Rourkela and study and design of an anaerobic treatment plant the Upflow Anaerobic Sludge Blanket reactor UASB. The feed inlet system is next designed so that the required length and width of the UASB reactor are determined.
Three Phase Hydrodynamic Simulation And Experimental Validation Of An Upflow Anaerobic Sludge Blanket Reactor Sciencedirect
5000 - 15000 mgl or more the design method should be used based on Organic Loading rate OLR If input COD 5000 mgl the design method should be calculated based on velocity.
. The settling compartment is formed by the sloping hoods for gas collection. Biological loading rate sludge loading rate 33. The discrepancies in the initial UASB plants were recorded and now a new breed of UASB reactor is available with respect to the design.
In general there are two ways to design an UASB reactor If input COD. The design features of the UASB reactor design are presented below in Table 1. This Excel spreadsheet can be used to calculate the required UASB reactor volume and dimensions sludge production rate methane production rate and required alkalinity addition based on user input information on wastewater flow and characteristics.
Upflow Anaerobic Sludge Blanket UASB reactors have been widely used for the treatment of industrial wastewater. UASBAF Able to retain very high concentration of active biomass in the reactor. 42 Other parameters 421 COD charge per volume Measurements at UASB reactors in South-America indicate a relation between the.
The depth of the compartment is 20 to 25 m and the surface overflow rate kept at 20 to 28 m 3 m 2 -day 1 to 12 mh at peak flow. Load 5-20 kg CODm3-d COD removal efficiency. Organic charges per volume.
The temperature range which affects solid retention time and the flow fluctuations which affect the upflow velocity are also considered. To design appropriate wastewater treatment plant and technologies. The UASB model showed.
UASB reactor efficiencies 35. Reactor ASBR Anaerobic contact process Anaerobic filter AF Upflow anaerobic slugde Blanket UASB Fluidized bed Reactor Hybrid reactor. 70 Accordingly this leads to 20 COD reduction due to precipitation and the solids get settled in the Primary Cla - rifier.
Disadvantages of anaerobic granulation include the long start-up time and the relative high operation temperature needed. UASB reactor design and construction in past was shows quite different and the very first 5 MLD treatment capacities plant that were demonstrated and constructed at Kanpur India under the Ganga Action Plan in 80s. They are necessary for the calculation of further process design and operational parameters eg.
1985 and Brazil Vieira and Souza 1986 there has been a rapid increase in the number of large scale municipal UASB sewage treatment plants STPs installed in sub-tropical countries. Volumetric hydraulic load and hydraulic retention time 32. Continuous Flow Stirred Tank Reactor CSTR is the common model of reactor used to treat various kind of wastewater.
Uasb reactor design calculation pdf get file genitourinary side effects have included retention to increase download speeds by up to 5 times resume and schedule downloads free shipping to and from repair facility the plan was to expand to these markets in the first update 21 8 design procedure for uasb reactor the uasb reactor can be. Been made to design an upflow anaerobic sludge blanket UASB type digester. A short summary of this paper.
An UASB reactor consists of a tank where the feed wastewater flows upwards through a dense sludge bed with high anaerobic microbial activity. March 14th 2019 - Uasb reactor design calculation pdf Get file Genitourinary side effects have included retention to increase download speeds by up to 5 times resume and schedule downloads Free shipping to and from repair facility The plan was to. Development and modification on digester type is still ongoing till this day.
UASB reactor was exposed to various HRTs including 10 8 6 4 and 2 h. An Upflow Anaerobic Sludge Blanket Reactor was. Thus extremely high SRT could be maintained irrespective of HRT.
UASB reactor has been and is the most usual reactor configuration to grow anaerobic granules for COD removal. UASB technology potential was shows in developing. Calculation shows that in the prevailing conditions 1314 m3 of Methane gas per day could be collected as a byproduct which could be used either as a fuel or to produce approximately 125 kWh electricity.
Flow measurements should be part of continuous process control. With 793 plants it accounted for 645 of the total number of reactors Hulshoff Pol et al 1998. Influent distribution system 36.
Many modifications and improvements have been developed in UASB reactor to enhance their efficiency. The sludge bed occupies about half the volume of the reactor and consists of granules or highly sedimentable flocs. The UASB was designed to treat the fruit waste water anaerobically for biogas generation.
Proposed Design of Upflow Anaerobic Sludge Blanket UASB for Mapúa Institute of Technology Project by. The most noted modification in anaerobic reactor and mostly used in the world today is Up-flow Anaerobic Sludge Blanket UASB reactor. Therefore the actual effluent parameters to the inlet of UASB Reactor are as mentioned in Table 2.
Upflow anaerobic sludge bed UASB reactors for the treatment of municipal sewage in Cali Colombia Lettinga et al. Upflow velocity and reactor height 34. This paper was reviews overall UASB technology in Mirzapur India.
3 kg COD m d kg CODd 2 98 m s 0002 m 3 1020. UASB REACTOR FS-BIO-009 Page 3 of 9 INDEX 1. Table 1 also summarizes the number of installations for eight types of industrial effluents including solid wastes and co-digestion.
Full PDF Package Download Full PDF Package. Effluent from food industry with 336 plants was the most common followed. An example UASB design calculations spreadsheet is partially shown in the image below.
A basic scheme of an UASB reactor is depicted in Figure 12. 18 ASHUTOSH SHARMA BTECH CHEMICAL ENGINEERING UASB Design calculation. The characteristics of treated bagasse wash water after UASB Reactor was as indicated in the Table 3.
In the experiments carried out with the UASB reactor the optimum HRT in terms of BOD 5 and COD removal was 6 h in which the organic load applied to the reactor was 220 kg. Type of reactor design is UASB.
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