Title :
Sludge reduction induced by aquatic worms in SBR wastewater treatment system
Author :
Zhu, Mingshan ; Guo, Maoxin ; Du, Shaoting ; Song, Yingqi
Author_Institution :
Coll. of Environ. Sci. & Eng., Zhejiang Gongshang Univ., Hangzhou, China
Abstract :
Sludge reduction effects of the Sequencing Batch Reactor (SBR) with aquatic worms were studied. When the density of aquatic worms was 4800 mg/L, the average sludge yield of the SBR with aquatic worms was 0.17 g SS / g COD, reducing by 21.20% in comparison with that of SBR without aquatic worms. Furthermore, the values of SVI of worms-group were slightly lower than that of control. Therefore, inoculation of the aquatic worms in SBR can effectively reduce sludge and might have a contribution to improve sludge settling characteristics.
Keywords :
batch processing (industrial); chemical reactors; sludge treatment; wastewater treatment; SBR wastewater treatment system; aquatic worms; sequencing batch reactor; sludge reduction; Biology; Grippers; Inductors; Production; Sludge treatment; Wastewater; Wastewater treatment; SBR; aquatic worms; sludge reduction; wastewater treatment;
Conference_Titel :
Water Resource and Environmental Protection (ISWREP), 2011 International Symposium on
Conference_Location :
Xi´an
Print_ISBN :
978-1-61284-339-1
DOI :
10.1109/ISWREP.2011.5893274
