Biological Nitrogen Removal Database

A manually curated data resource for microbial nitrogen removal


Anammox


Experimental setup


Influent:Synthetic wastewate

Anammox system:Sulfate-dependent anaerobic ammonium oxidation

Anammox reactor:Up Flow - Anaerobic Sludge Blanket Reactor (UASB) reactor

Medium:Granular ANAMMOX sludge

Culture taken from:Activated sludge from an SBR

Microorganism cultured:nan

Respiration:Anaerobic

Electron donor:Ammonium sulfate ((NH4)2SO4)

Electron acceptor:Sodium Nitrite (NaNO2)

PH:7.0–7.5

Maximum sludge concentration:39

HRT:9.23± 1.54 h

NH4–N Influent conc(mg/L):320–340

NO2–N Influent conc(mg/L):350–380

SO4–S Influent conc(mg/L):nan


Experimental Information


NH4–N Removal efficiency (%):96.1

NO2–N Removal efficiency (%):95.2

SO4-S Removal efficiency (%):nan

NLR kg-N/m3/d:7.2

NRR kg-N/m3/d:6.2


Information about Article


Major findings:Fast start-up of ANAMMOX reactor was achieved without taking deoxygenated measures

Authors:Li et al., 2012

Title:Fast start-up of ANAMMOX reactor: Operational strategy and some characteristics as indicators of reactor performance

Pubmed link:None

Full research link:Link

Abstract:Fast start-up of anaerobic ammonium oxidation (ANAMMOX) reactor was investigated by inoculating the mixed sludge from a partial nitritation reactor and a low loaded ANAMMOX reactor. At room temperatures (24–30 °C) and without taking deoxygenated measures for preparing the influent, nitrogen removal rate (NRR) up to 2.0 kg/m3/d on day 35 and 6.2 kg/m3/d on day 91 was achieved, indicating successful rapid start-up of ANAMMOX reactor. Dissolved oxygen (DO) concentration of 0.30 mg/L inside the reactor did not impair the ANAMMOX performance, suggesting that there is no need to take deoxygenated measures for preparing the ANAMMOX influent. The pH, conductivity, effluent nitrate nitrogen concentration and sludge color were simple indicators of ANAMMOX performance.