doi: 10.7763/IJESD.2016.V7.779
A Novel Biological Method for Sludge Volume Reduction by Aquatic Worms
Yalda Basim1
, ,
- 1Research Committee of Ahvaz Jundishapur University of Medical Sciences, Environmental Technologies Research Center, Ahvaz, Iran
- 2Ahvaz Jundishapur University of Medical Sciences, Environmental Technologies Research Center, Ahvaz, Iran
- 3Environmental Health Engineering Department, Iran University of Medical Sciences, Tehran, Iran
Abstract
The application of biological methods of sludge reduction and treatment, compared with mechanical and chemical methods, due to the lack of secondary pollutions has attracted more attention in recent years. The present research studies the reduction amount of suspended solids in the waste of the activated sludge by an aquatic worm (<em>Lumbriculus variegatus</em>) in wastewater treatment plant and total amount of suspended solids in the worm reactor with different dissolved oxygen concentration. According to the results, the average reduction of suspended solids in the sludge of different oxygen contents doesn’t make difference statistically, and its obtained maximum reduction equals to 33%. The average reduction amount of 16% and 12% which have been under observation in this parameter respectively show a noticeable change with regard to the reactors both in phase one and two. Therefore, the performance of the species of the aquatic worm in the reduction of sludge TSS is confirmed.
Keywords
- Aquatic worm
- Lumbriculus variegatus
- total suspended solids
- waste sludge
How to Cite
Yalda Basim, N. Jaafarzadeh, and M. Farzadkia, "A Novel Biological Method for Sludge Volume Reduction by Aquatic Worms," International Journal of Environmental Science and Development, vol. 7, no. 4, pp. 253-256, 2016. https://doi.org/10.7763/IJESD.2016.V7.779
Copyright & License
Copyright © 2016 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).