Nitrogen and Phosphorus Removal Enhanced by Humus Soil Activated Sludge Process

Author

Wu, Min ; Zhu, Rui ; Wei, Chuanyin ; Pan, Xiaohui ; Wang, Yayi

Author_Institution

State Key Lab. of Pollution Control & Resources Reuse, Tongji Univ., Shanghai, China

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

4

Abstract

Humus soil activated sludge (HSAS) process and conventional activated sludge (CAS) process of 400 L/day capacity were set up in lab to evaluate their performance. This study mainly focused on testing Nitrogen and phosphorus removal efficiency and settleability and dewaterability of sludge. The research shows that HSAS process could enhance the removal of nutrient salt, especially TP. It enhanced NH₄ ⁺-N turn into NO₃-N and improved NH₄ ⁺-N and TN removal better. The removal efficiency of NH₄ ⁺-N, TN, TP are 82%, 49% and 67% , respectively, higher than traditional activated sludge process (8%, 7% and 39% , respectively). It didn´t have a better effect on the COD removal compared it with CAS process. They had about 86% removal efficiency on average. Settleability and dewaterability of the sludge from HSAS process was enhanced 14%, 29% respectively. Observation of floe shape by microscope indicated that HSAS was larger than CAS.

Keywords

nitrogen; phosphorus; sludge treatment; wastewater treatment; HSAS process; conventional activated sludge process; dewaterability; humus soil activated sludge process; nitrogen removal; nutrient salt; phosphorus removal; settleability; Content addressable storage; Effluents; Inductors; Laboratories; Nitrogen; Shape; Sludge treatment; Soil; Solids; Wastewater;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2901-1

Electronic_ISBN

978-1-4244-2902-8

Type

conf

DOI

10.1109/ICBBE.2009.5163112

Filename

5163112