Guideline for granular sludge reactor design lequiaudg. Comparisons between the uasb and the egsb reactor seung j. Lim abstract some characteristics of upflow anaerobic sludge blanket uasb, expended granule sludge blanket egsb, and static granular bed reactor sgbr were investigated in order to compare performances of the three and recognize advantages and disadvantages, respectively. Pressurised water procedure for unblocking inlet pipes. Design criteria one of the most important aspects of the anaerobic process applying uasb reactors is its ability to develop and. Review of upflow anaerobic sludge blanket reactor technology. Specialized literature is available and covers a broad range of technologies and process options. The most popular design, the so called uasb upflow anaerobic sludge blanket reactor has no secrets at all, and is very simple to build and operate. Design of the uasb, p1 peristaltic feed pump, p2 peristaltic recycle. The upflow anaerobic sludge blanket uasb reactor has been recognized as an important wastewater treatment technology among.
Anaerobic treatment of municipal wastewater in uasbreactors. Professor, department of bioenergy, agricultural engineering college and research institute, tamil nadu agricultural. Design of upflow anaerobic sludge blanket uasb reactor for jam industry wastes m. An example uasb design calculations spreadsheet is partially shown in the image below. Anaerobic reactor design there are many new concepts in anaerobic reactor design.
A solution is to combine the leach beds with a highrate reactor. Two different nutrients were used during the uasb startup period, which was designed to decrease the hydraulic retention time hrt from 48 to. Guideline for granular sludge reactor design 5 autotrophic reactions co 2 emissions are minimal. The two have been merged because the literature hardly distinguishes between the. Design, commissioning, and startup of a sequentially.
Pdf proposed design of upflow anaerobic sludge blanket. Furthermore, depending on the design of a uasb reactor. Pdf hydrodynamic study of up flow anaerobic sludge blanket. Calculated volume of ch4 and cod equivalent of ch4 in the collected biogas. For example, grass silage can vary in dry solids content from 20% to. In most of the monitoring, the uasb reactor operated with a mean ph of 7.
Furthermore, owing to slow anammox growth rate, the sludge production is expected to be lower. Sludge ages in uasb reactors usually exceed 30 days, leading to stabilization of the excess sludge removed from the system. Chapter 4 anaerobic sewage treatment using uasb reactors edx. In the past three decades the uasb reactor design has been more or less.
Biofilm reactors are suitable systems to carry out partial nitritationanammox pathway. Pdf optimal design and operation of a uasb reactor for dairy. Combining these main properties in a geometric scale d, other dimensionless. Pdf optimal design and operation of a planned fullscale uasb reactor at a dairy farm are determined. Proposed design of upflow anaerobic sludge blanket uasb for mapua institute of technology project by. Therefore, the actual effluent parameters to the inlet of uasb reactor are as mentioned in table 2. Calculation shows that in the prevailing conditions, 1. Optimal design and operation of a uasb reactor for dairy cattle. The characteristics of treated bagasse wash water after uasb reactor was as indicated in the table 3. However, design parameters calculated from laboratory studies of the biological.
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