Domestic Sewage Treatment Using a One-Stage ANAMMOX Process

Yuan Wei; Yue Jin; Wenjie Zhang

doi:10.3390/ijerph17093284

Domestic Sewage Treatment Using a One-Stage ANAMMOX Process

Int J Environ Res Public Health. 2020 May 8;17(9):3284. doi: 10.3390/ijerph17093284.

Authors

Yuan Wei¹, Yue Jin², Wenjie Zhang³

Affiliations

¹ Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China.
² College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004, China.
³ Guangxi Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin 541004, China.

Abstract

A one-stage anaerobic ammonium oxidation (ANAMMOX) reactor can be quickly started within 40 days by mixing partial nitrifying sludge with ANAMMOX granular sludge with an average temperature of 30 °C. After 70 days of nitrogen load acclimation, Acinetobacter, including Candidatus Kuenenia, became the dominant strain of the system within the reactor, which exhibited high efficiency and a stable nitrogen removal performance. At an influent chemical oxygen demand (COD), NH₄⁺-N content, total nitrogen (TN) content, hydraulic retention time (HRT), temperature, and reactor dissolved oxygen (DO) content of 100, 60, and 70 mg/L, 6 h, 30 ± 1 °C, and below 0.6 mg/L, respectively, the one-stage ANAMMOX reactor could effectively treat domestic sewage on campus. The removal rates of COD, NH₄⁺-N, and TN were approximately 89%, 96.7%, and 70%, respectively.

Keywords: ANAMMOX; domestic sewage treatment; new process.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Acinetobacter
Ammonium Compounds*
Anaerobiosis
Bioreactors / microbiology*
Nitrogen
Oxidation-Reduction
Refuse Disposal / methods*
Sewage*

Substances

Ammonium Compounds
Sewage
Nitrogen