NITROGEN REMOVAL CHARACTERISTICS OF A STEP-FEED CONTINUOUS FLOW PARTIAL DENITRIFICATION-ANAEROBIC AMMONIUM OXIDATION COUPLED WITH DENITRIFICATION PROCESS

ZHANG Shujun; HUANG Jianming; MA Shuqing; WANG Cong; TIAN Xiadi; LI Kun; ZHAO Dan; HAN Xiaoyu

doi:10.13205/j.hjgc.202211002

Volume 40 Issue 11

Nov. 2022

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ZHANG Shujun, HUANG Jianming, MA Shuqing, WANG Cong, TIAN Xiadi, LI Kun, ZHAO Dan, HAN Xiaoyu. NITROGEN REMOVAL CHARACTERISTICS OF A STEP-FEED CONTINUOUS FLOW PARTIAL DENITRIFICATION-ANAEROBIC AMMONIUM OXIDATION COUPLED WITH DENITRIFICATION PROCESS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(11): 13-18. doi: 10.13205/j.hjgc.202211002

Citation:

ZHANG Shujun, HUANG Jianming, MA Shuqing, WANG Cong, TIAN Xiadi, LI Kun, ZHAO Dan, HAN Xiaoyu. NITROGEN REMOVAL CHARACTERISTICS OF A STEP-FEED CONTINUOUS FLOW PARTIAL DENITRIFICATION-ANAEROBIC AMMONIUM OXIDATION COUPLED WITH DENITRIFICATION PROCESS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(11): 13-18. doi: 10.13205/j.hjgc.202211002

Citation:

ZHANG Shujun, HUANG Jianming, MA Shuqing, WANG Cong, TIAN Xiadi, LI Kun, ZHAO Dan, HAN Xiaoyu. NITROGEN REMOVAL CHARACTERISTICS OF A STEP-FEED CONTINUOUS FLOW PARTIAL DENITRIFICATION-ANAEROBIC AMMONIUM OXIDATION COUPLED WITH DENITRIFICATION PROCESS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(11): 13-18. doi: 10.13205/j.hjgc.202211002

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NITROGEN REMOVAL CHARACTERISTICS OF A STEP-FEED CONTINUOUS FLOW PARTIAL DENITRIFICATION-ANAEROBIC AMMONIUM OXIDATION COUPLED WITH DENITRIFICATION PROCESS

doi: 10.13205/j.hjgc.202211002

ZHANG Shujun^1,2,
HUANG Jianming^1,2,3,
MA Shuqing²,
WANG Cong^1,2,
TIAN Xiadi^1,2,
LI Kun^1,2,
ZHAO Dan^1,2,
HAN Xiaoyu^{1,2
,
,}

1. Beijing Engineering Research Center of Wastewater Resource, Beijing 100124, China;
2. Beijing Drainage Group Co., Ltd, Beijing 100044, China;
3. Beijing Drainage Technology Co., Ltd, Beijing 100044, China

Received Date: 2022-07-05
Available Online: 2023-03-24

Abstract

Abstract

The low C/N domestic sewage was treated by a step-feed continuous flow partial denitrification-anaerobic ammonium oxidation (PD-Anammox) process coupled with denitrification, the pollutants' removal characteristics, pollutants' concentrations in different stages of the system at a typical operation cycle, and total nitrogen(TN) removal contribute efficiencies of PD-anammox and denitrification were studied. The results showed that when the average influent concentrations of COD, NH₄⁺-N, and TN were 193.1, 58.6 and 60.3 mg/L respectively, their effluent concentrations were 46.3, 1.5, and 13.4 mg/L respectively, complying with the first level A criteria specified in the Discharge Standard of Pollution for Municipal Wastewater Treatment Plants (GB 18918-2002). The nitrate transformed to nitrite in anoxic by nitrate pre-starvation and post-inlet to provide the anammox matrix of nitrite and ammonium. The TN efficiency got improved by setting anammox filler in the anoxic zones. The average PD-Anammox process's contribution rates to TN removal of anoxic zone Ⅰ and Ⅱ were 54.37% and 64.17% respectively, through mass balance calculation at the anoxic zones.
- step-feed,
- continuous flow,
- PD-Anammox,
- pre starvation,
- contribution rates

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References(19)

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