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Sekaran, V.
- FBBR and MBBR Bioreactors for Sewage Treatment
Abstract Views :782 |
PDF Views:0
Authors
Affiliations
1 Department of Civil Engineering, Karpagam University, Coimbatore, IN
2 Raja College of Engineering & Technology, Madura, IN
1 Department of Civil Engineering, Karpagam University, Coimbatore, IN
2 Raja College of Engineering & Technology, Madura, IN
Source
International Journal of Environmental Engineering and Management, Vol 4, No 1 (2013), Pagination: 73-88Abstract
The bioreactors are either aerobic or anaerobic. They are suspended growth or attached growth. Bioreactors degrade contaminants in water with microorganisms through attached or suspended biological systems. In suspended growth systems, such as activated sludge, fluidized beds, or sequencing batch reactors, contaminated ground water is circulated in an aeration basin where a microbial population aerobically degrades organic matter and produces CO2, H2O, and new cells. The cells form a sludge, which is settled out in a clarifier, and is either recycled to the aeration basin or disposed. In attached growth systems, such as upflow fixed film bioreactors, rotating biological contactors (RBCs), and trickling filters, microorganisms are established on an inert support matrix to aerobically degrade water contaminants. The microbial population may be derived either from the contaminant source or from an inoculum of organisms specific to a contaminant. Nutrients are often added to the bioreactors to support the growth of microorganisms. Bioreactors are a long-term technology. The process may take up to several years. Various types of bioreactors and their values are reviewed in this paper.Keywords
Aerobic, Anaerobic, AFB, ASP, Attached Growth, Biogas,Bioreactors, FAB, FBBR, MBBR, Resource Recovery, Suspended Growth, UASBReferences
- Success Story of Resource Recovery Sewage Treatment Plant at Kankhal, Haridwar-(www.envfor.nic.in /news /feb99 /ss_ rrec.html visited on 31.05.2007).
- AHEC, ‘Performance review of Yamuna action plan in various towns’, IIT Roorkee, 2002.
- Thermax Ltd., ‘Sewage Treatment Plant of Pimpri Chinchwad Municipal Corporation’, Pune (Maharashtra, India), 2005.
- Pinnacle Environmental Technologies Inc., A Discussion Paper on the Merits of Attached Growth versus Suspended Growth Technology for Sewage Wastewater Treatment (http://pinnacleenvironmental.com/file_download/5/Fixed+vs+Suspended.pdf ,www.envfor.nic.in/news/feb99/b.burden.html visited on 04.03.2013).
- Aerobic Wastewater Treatment Vs Anaerobic Wastewater Treatment (http://www.wedotanks.com/anaerobic-aerobic-wastewater-treatmentplant.asp visited on 04.03.2013)
- Recent Trends In Technologies in Sewerage System, Ministry of Urban Development, Government of India, March 2012 (http://urbanindia.nic.in/programme/uwss/dprs-checklists/ swgrtech.pdf visited on 04.03.2013)
- Consultancy report of Kuster+Hager Civil Engineers Ltd, Enhancing the Performance of the Activated Sludge Process CH-8730 Uznach Ulrich Bretscher, Chem. Eng., (http://typo3.kuster.hager.ch/fileadmin/dokumente/EnhanceingPerformance.pdf visited on 04.03.2013)
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- Comparative Study of Performance Evaluation of UASB Reactor for Treating Synthetic Dairy Effluent at Psychrophilic and Mesophilic Temperatures
Abstract Views :107 |
PDF Views:0
Authors
R. Sivakumar
1,
V. Sekaran
2
Affiliations
1 Department of Civil Engineering, As-Salam College of Engineering & Technology, Thirumangalakudi, Tamilnadu, IN
2 Pavai Engineering College, Namakkal, Tamilnadu, IN
1 Department of Civil Engineering, As-Salam College of Engineering & Technology, Thirumangalakudi, Tamilnadu, IN
2 Pavai Engineering College, Namakkal, Tamilnadu, IN
Source
Nature Environment and Pollution Technology, Vol 14, No 3 (2015), Pagination: 679-684Abstract
Dairy industry contributes to the pollution of the environment, both in quality and quantity. It generates about 0.2 to 10 L of effluent per liter of milk processed. Up-flow anaerobic sludge blanket is most suitable for biodegradable wastes, hence the present study evaluated the performance of UASBR through a laboratory model (25 liters of volume) for treating the dairy effluent with maintained psychrophilic temperature (15-20°C) at phase I and mesophilic temperature (30-40°C) at phase II. This model was studied for its treatment efficiency in terms of COD reduction. In the phase I, the average varying influent COD applied over the model are 1684, 2693, 3160, 3637, and 4059 mg/L with flow rates for each average influent COD as 4.80, 9.60, 14.40, 19.20 and 24.00 L/d. It was found that, successful COD removal of 91.42% was for the operating conditions of OLR at 0.039 kg COD/kg VSS day, VLR at 0.70 kg COD/m3 day and HRT at 5.21 days. In the phase II the average varying influent COD of 2316, 2827, 3329, 3908 and 4522 mg/L were applied with same flow rates. The experimental work on UASBR model was found successful with 94.70% COD removal under the operating conditions of OLR at 0.037 kg COD/kg VSS day, VLR at 0.630 kg COD/m3 day and HRT at 5.21 days. The reactor achieved BOD, TSS, TDS, N and P removal efficiency, observed in phase I and II, as 91%, 82%, 89%, 42% and 46% and 96.4%, 86%, 91%, 41% and 50% respectively.Keywords
UASB Reactor, Dairy Wastewater, Anaerobic Treatment, COD Removal.- Investigation on Preparation, Characterization and Application of Effective Microorganisms (EM) Based Composts - an Ecofriendly Solution
Abstract Views :116 |
PDF Views:1
Authors
Affiliations
1 Department of Civil Engg., Anna University, University College of Engg., Ramanathapuram, 623 513, T.N., IN
2 Department of Civil Engineering, Paavai Engineering College, Namakkal, IN
3 Department of Chemistry, Anna University, University College of Engg., Ramanathapuram, 623 513, T.N., IN
1 Department of Civil Engg., Anna University, University College of Engg., Ramanathapuram, 623 513, T.N., IN
2 Department of Civil Engineering, Paavai Engineering College, Namakkal, IN
3 Department of Chemistry, Anna University, University College of Engg., Ramanathapuram, 623 513, T.N., IN