Open AccessPerformance of Nitrogen Removal in Ceramic Anammox Reactor with Two-Inflow
Author(s) -
Zulias Mardinata Zulkarnaini,
Sinta Silvia
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1041/1/012037
Subject(s) - anammox , ammonium , effluent , nitrite , chemistry , substrate (aquarium) , nitrogen , ammonia , nuclear chemistry , materials science , pulp and paper industry , environmental engineering , waste management , nitrate , denitrification , environmental science , biochemistry , organic chemistry , biology , ecology , denitrifying bacteria , engineering
Anaerobic ammonium oxidation (anammox) converted ammonium into nitrogen gas using nitrite as an electron donor in anaerobic conditions by anammox bacteria. Granular anammox was used commonly to remove ammonium from wastewater. It easy to be broken and tend to settle in the bottom of the reactor in the application. A pored ceramic carrier was proposed to cultivate anammox bacteria with two-inflow substrate feeding. The carrier with a diameter of 1.0 mm was set up in the center of the 1.0 L conical filtering flask reactor. The substrate with 70 mg-N/L of ammonium-supplemented substate was introduced into the reactor through the center of the ceramic carrier from the bottom and 70 mg-N/L nitrite-supplemented substrates into the outside of ceramic carrier with HRT 3 hours. The influent and effluent concentration measured once a week using ion chromatography. The experiment was conducted in the 35°C controlled temperature room. Anammox bacteria grew by filled and covered the ceramic carrier’s pore, and a flock of anammox settled in the reactor. The reactor’s performance achieved a maximum of 76.496 % NRE and 0.901 kg-N/m 3 ·d NRR, respectively.