ScholarLens Back to search
2006•Journal of Shaanxi University of Science & TechnologyRequires access

START-UP ANAEROBIC AMMONIUM OXIDATION(ANAMMOX) PROCESS IN UASB-BIOFILM REACTOR

Junqin Yao

Open publisher page 0 citations

Abstract

The start-up of ANAMMOX process was investigated by using a 3.2 L UASB-biofilm reactor inoculated with activated sludge from a landfill leachate treatment system.The UASB-biofilm reactor was feed with artificial wastewater composed with ammonium and nitrite at proper NH~+_4-N,NO~-_2-N ratio.The results demonstrated that ANAMMOX process was achieved successfully with high removal efficiencies of NH~+_4-N,NO~-_2-N and TN(99.4%,97.4% and 90.0%) after 56 days of operation and acclimation.The ratio of removed ammonia,nitrite and produced nitrate was 1∶1.61∶0.25 at the stable stage of the process.The effluent pH value kept around 8.3 and the alkalinity varied a little.The obtained biofilm with high ANAMMOX activity was brown.The grain-sludge of brown and pink were found at the bottom of the reactor.

About this research paper

What this paper is about

The start-up of ANAMMOX process was investigated by using a 3.2 L UASB-biofilm reactor inoculated with activated sludge from a landfill leachate treatment system.The UASB-biofilm reactor was feed with artificial wastewater composed with ammonium and nitrite at proper NH~+_4-N,NO~-_2-N ratio.The results demonstrated that ANAMMOX process was achieved successfully with high removal efficiencies of NH~+_4-N,NO~-_2-N and TN(99.4%,97.4% and 90.0%) after 56 days of operation and acclimation.The ratio of removed ammonia,nitrite and produced nitrate was 1∶1.61∶0.25 at the stable stage of the process.The effluent pH value kept around 8.3 and the alkalinity varied a little.The obtained biofilm with high ANAMMOX activity was brown.The grain-sludge of brown and pink were found at the bottom of the reactor.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

The start-up of ANAMMOX process was investigated by using a 3.2 L UASB-biofilm reactor inoculated with activated sludge from a landfill leachate treatment system.The UASB-biofilm reactor was feed with artificial wastewater composed with ammonium and nitrite at proper NH~+_4-N,NO~-_2-N ratio.The results demonstrated that ANAMMOX process was achieved successfully with high removal efficiencies of NH~+_4-N,NO~-_2-N and TN(99.4%,97.4% and 90.0%) after 56 days of operation and acclimation.The ratio of removed ammonia,nitrite and produced nitrate was 1∶1.61∶0.25 at the stable stage of the process.The effluent pH value kept around 8.3 and the alkalinity varied a little.The obtained biofilm with high ANAMMOX activity was brown.The grain-sludge of brown and pink were found at the bottom of the reactor.

Key concepts: Anammox, Nitrite, Moving bed biofilm reactor, Chemistry, Alkalinity, Effluent, Wastewater, Biofilm

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
START-UP ANAEROBIC AMMONIUM OXIDATION(ANAMMOX) PROCESS IN UASB-BIOFILM REACTOR — Research Paper | ScholarLens