TY - GEN
T1 - Simultaneous removal of ammonium-nitrogen and sulphate from wastewaters with an anaerobic attached-growth bioreactor
AU - Zhao, Q. I.
AU - Li, W.
AU - You, S. J.
PY - 2006
Y1 - 2006
N2 - Some industrial wastewaters may contain ammonium-nitrogen and/or sulphate, which need to be remove before their discharge into natural water bodies to eliminate their severe pollution. In this paper, simultaneous removal of ammonium-nitrogen and sulphate with an anaerobic attached-growth bioreactor of 3.8 L incubated with sulphate reducing bacteria (SRB) was investigated. Artificial wastewater containing sodium sulphate as electron acceptor, ammonium chlorine as electron donor and glucose as carbon source for bacteria growth was used as the feed for the bioreactor. The loading rates of ammonium-nitrogen, sulphate and COD were 2.08 gN/m3·d, 2.38 gS/m3·d, 104.17 gCOD/m3·d, respectively, with a N/S ratio of 1:1.14. The results demonstrated that removal rates of ammonium-nitrogen, sulphate and COD could reach 43.35%, 58.74% and 91.34%, respectively. Meanwhile, sulphur production was observed in effluent as well as molecular nitrogen in biogas, whose amounts increased with time substantially, suggesting the occurrence of simultaneous removal of ammonium-nitrogen and sulphate. This novel reaction provided the possibility to eliminate ammonium-nitrogen and sulphate simultaneously with accomplishment of COD removal from wastewater, making wastewater treatment more economical and sustainable.
AB - Some industrial wastewaters may contain ammonium-nitrogen and/or sulphate, which need to be remove before their discharge into natural water bodies to eliminate their severe pollution. In this paper, simultaneous removal of ammonium-nitrogen and sulphate with an anaerobic attached-growth bioreactor of 3.8 L incubated with sulphate reducing bacteria (SRB) was investigated. Artificial wastewater containing sodium sulphate as electron acceptor, ammonium chlorine as electron donor and glucose as carbon source for bacteria growth was used as the feed for the bioreactor. The loading rates of ammonium-nitrogen, sulphate and COD were 2.08 gN/m3·d, 2.38 gS/m3·d, 104.17 gCOD/m3·d, respectively, with a N/S ratio of 1:1.14. The results demonstrated that removal rates of ammonium-nitrogen, sulphate and COD could reach 43.35%, 58.74% and 91.34%, respectively. Meanwhile, sulphur production was observed in effluent as well as molecular nitrogen in biogas, whose amounts increased with time substantially, suggesting the occurrence of simultaneous removal of ammonium-nitrogen and sulphate. This novel reaction provided the possibility to eliminate ammonium-nitrogen and sulphate simultaneously with accomplishment of COD removal from wastewater, making wastewater treatment more economical and sustainable.
KW - Ammonium-nitrogen
KW - Anaerobic attached-growth bioreactor
KW - Sulphate
KW - Sulphur
UR - https://www.scopus.com/pages/publications/33845357984
U2 - 10.2166/wst.2006.762
DO - 10.2166/wst.2006.762
M3 - 会议稿件
C2 - 17163010
AN - SCOPUS:33845357984
SN - 1843395835
SN - 9781843395836
T3 - Water Science and Technology
SP - 27
EP - 35
BT - 5th World Water Congress
ER -