Investigation of Tubifex Worms Potential in Mass and Volume Reduction of Sludge Wastewater Treatment Plants in Laboratory Scale
Large amount of excess waste from activated sludge is generated in wastewater treatment plants which its treatment, transportation and disposal costs are estimated to be over 50 percent of total plant cost operation. In this research it was tried to decrease the amount of sludge volume and its mass...
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Water and Wastewater Consulting Engineers Research Development
2013-08-01
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doaj-b8f488fb3cc044978c3f00d2c7d0a8762021-03-02T00:33:48ZengWater and Wastewater Consulting Engineers Research Developmentآب و فاضلاب1024-59362383-09052013-08-0124459653189Investigation of Tubifex Worms Potential in Mass and Volume Reduction of Sludge Wastewater Treatment Plants in Laboratory ScaleSamaneh Pasha Zanousi0Bita Ayati1Hossein Ganjidoost2دانشجوی کارشناسی ارشد مهندسی عمران محیط زیست، دانشگاه تربیت مدرس، تهراندانشیار دانشکده مهندسی عمران و محیط زیست، دانشگاه تربیت مدرس، تهراناستاد دانشکده مهندسی عمران و محیط زیست، دانشگاه تربیت مدرس، تهرانLarge amount of excess waste from activated sludge is generated in wastewater treatment plants which its treatment, transportation and disposal costs are estimated to be over 50 percent of total plant cost operation. In this research it was tried to decrease the amount of sludge volume and its mass by using relative low cost and low energy consumed process in laboratory scale. By developing suitable environmental conditions and population increase and growth of aquatic Tubifex worms in sludge (conventional kinds of worms in wastewater treatment plants) and with measurement of TSS, VSS and worms growth rate, sludge mass and volume reduction were determined. According to the results, in specific growth rate of 0.05 d-1, VSS reduction of 26 mg/l.d and with initial sludge amount of 2850 mg/l and 2000 mg/l, TSS and sludge volume reduction of 40 and 20 percent were observed, respectively. 50 percent of soluble COD with initial amount of 500 mg/l was also removed in the laboratory conditions.http://www.wwjournal.ir/article_3189_8d98d3a594ca037b83d242998ab5a0db.pdfTubifexsludgeCODTSSVSS |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Samaneh Pasha Zanousi Bita Ayati Hossein Ganjidoost |
spellingShingle |
Samaneh Pasha Zanousi Bita Ayati Hossein Ganjidoost Investigation of Tubifex Worms Potential in Mass and Volume Reduction of Sludge Wastewater Treatment Plants in Laboratory Scale آب و فاضلاب Tubifex sludge COD TSS VSS |
author_facet |
Samaneh Pasha Zanousi Bita Ayati Hossein Ganjidoost |
author_sort |
Samaneh Pasha Zanousi |
title |
Investigation of Tubifex Worms Potential in Mass and Volume Reduction of Sludge Wastewater Treatment Plants in Laboratory Scale |
title_short |
Investigation of Tubifex Worms Potential in Mass and Volume Reduction of Sludge Wastewater Treatment Plants in Laboratory Scale |
title_full |
Investigation of Tubifex Worms Potential in Mass and Volume Reduction of Sludge Wastewater Treatment Plants in Laboratory Scale |
title_fullStr |
Investigation of Tubifex Worms Potential in Mass and Volume Reduction of Sludge Wastewater Treatment Plants in Laboratory Scale |
title_full_unstemmed |
Investigation of Tubifex Worms Potential in Mass and Volume Reduction of Sludge Wastewater Treatment Plants in Laboratory Scale |
title_sort |
investigation of tubifex worms potential in mass and volume reduction of sludge wastewater treatment plants in laboratory scale |
publisher |
Water and Wastewater Consulting Engineers Research Development |
series |
آب و فاضلاب |
issn |
1024-5936 2383-0905 |
publishDate |
2013-08-01 |
description |
Large amount of excess waste from activated sludge is generated in wastewater treatment plants which its treatment, transportation and disposal costs are estimated to be over 50 percent of total plant cost operation. In this research it was tried to decrease the amount of sludge volume and its mass by using relative low cost and low energy consumed process in laboratory scale. By developing suitable environmental conditions and population increase and growth of aquatic Tubifex worms in sludge (conventional kinds of worms in wastewater treatment plants) and with measurement of TSS, VSS and worms growth rate, sludge mass and volume reduction were determined. According to the results, in specific growth rate of 0.05 d-1, VSS reduction of 26 mg/l.d and with initial sludge amount of 2850 mg/l and 2000 mg/l, TSS and sludge volume reduction of 40 and 20 percent were observed, respectively. 50 percent of soluble COD with initial amount of 500 mg/l was also removed in the laboratory conditions. |
topic |
Tubifex sludge COD TSS VSS |
url |
http://www.wwjournal.ir/article_3189_8d98d3a594ca037b83d242998ab5a0db.pdf |
work_keys_str_mv |
AT samanehpashazanousi investigationoftubifexwormspotentialinmassandvolumereductionofsludgewastewatertreatmentplantsinlaboratoryscale AT bitaayati investigationoftubifexwormspotentialinmassandvolumereductionofsludgewastewatertreatmentplantsinlaboratoryscale AT hosseinganjidoost investigationoftubifexwormspotentialinmassandvolumereductionofsludgewastewatertreatmentplantsinlaboratoryscale |
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