EFFECT OF HIGH CONCENTRATION PHOSPHORUS ON ANAEROBIC AMMONIA OXIDATION PERFORMANCE AND GRANULAR SLUDGE PROPERTY

FU Jin-xiang; QIAN Jie; ZHANG Li; YU Peng-fei; LUO Di; YOU Kun

doi:10.13205/j.hjgc.202011016

Volume 38 Issue 11

Apr. 2021

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(11): 98-102,109

FU Jin-xiang, QIAN Jie, ZHANG Li, YU Peng-fei, LUO Di, YOU Kun. EFFECT OF HIGH CONCENTRATION PHOSPHORUS ON ANAEROBIC AMMONIA OXIDATION PERFORMANCE AND GRANULAR SLUDGE PROPERTY[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(11): 98-102,109. doi: 10.13205/j.hjgc.202011016

Citation:

FU Jin-xiang, QIAN Jie, ZHANG Li, YU Peng-fei, LUO Di, YOU Kun. EFFECT OF HIGH CONCENTRATION PHOSPHORUS ON ANAEROBIC AMMONIA OXIDATION PERFORMANCE AND GRANULAR SLUDGE PROPERTY[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(11): 98-102,109. doi: 10.13205/j.hjgc.202011016

Citation:

FU Jin-xiang, QIAN Jie, ZHANG Li, YU Peng-fei, LUO Di, YOU Kun. EFFECT OF HIGH CONCENTRATION PHOSPHORUS ON ANAEROBIC AMMONIA OXIDATION PERFORMANCE AND GRANULAR SLUDGE PROPERTY[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(11): 98-102,109. doi: 10.13205/j.hjgc.202011016

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EFFECT OF HIGH CONCENTRATION PHOSPHORUS ON ANAEROBIC AMMONIA OXIDATION PERFORMANCE AND GRANULAR SLUDGE PROPERTY

doi: 10.13205/j.hjgc.202011016

Liao River Basin Water Pollution Control Research Institute, Shenyang Jianzhu University, Shenyang 110168, China

Received Date: 2019-09-09
Available Online: 2021-04-23
Publish Date: 2021-04-23

Abstract

Abstract

In order to study the effect of high concentration of phosphorus on anammox efficiency and sludge characteristics, a UASB reactor was used for continuous test to investigate the nitrogen removal efficiency of anammox at different phosphorus concentrations. The surface morphology and element composition of granular sludge were analyzed by SEM and EDS. The results showed that: when the phosphorus concentration reached 600 mg P/L, it began to inhibit the nitrogen removal efficiency of ANAMMOX, and 700 mg P/L inhibited 91.86% of the nitrogen removal efficiency of Anammox; NRR recovered completely after 10 days of phosphorus reduction; with the increase of phosphorus concentration in the influent, the retention of phosphorus in the reactor decreased. The high concentration of P resulted in the formation of white solid on the surface of granular sludge at the bottom of the reactor, which was composed of C, O, P and Ca, insoluble compounds such as hydroxyapatite and calcium phosphate. The results of EDS showed that the number percentage of O, P, C and Ca atoms in the solid was 41.89%, 21.78%, 14.41% and 10.82%, respectively.
- anammox,
- phosphorus,
- granular sludge,
- solid matter

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References(22)

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