Journal of Environmental Engineering Technology ›› 2013, Vol. 3 ›› Issue (4): 286-292.doi: 10.3969/j.issn.1674-991X.2013.04.045

• Water Pollution Control Technology and Resource Utilization • Previous Articles     Next Articles

Performance and Feasibility of ANAMMOX Bio-filter Process for Advanced Treatment of Dry-spun Acrylic Fiber Wastewater

XU Hao1,2,3,TIAN Zhi-yong1,2,SONG Yong-hui1,2,ZHANG Li-cheng3,SUN Chen1,2   

  1. 1. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences
    2. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences
    3. Municipal and Environmental Engineering College, Shenyang Jianzhu University
  • Received:2012-12-02 Revised:2012-12-24 Online:2013-07-20 Published:2013-07-20
  • Contact: SONG Yong-hui

Abstract: Aiming at the high ammonia-nitrogen concentration, low biodegradability and non-compliance issues of dry-spun acrylic fiber wastewater, the effluent of third-sedimentation tank was taken as experimental substrate to research the feasibility and performance of ANAMMOX bio-filter process for advanced treatment of dry-spun acrylic fiber wastewater. The results indicated that the ANAMMOX bio-filter had a good denitrification ability of dry-spun acrylic fiber wastewater after 130 days domestication, the effluent ammonia-nitrogen concentration decreased from 184.1-205.3 mg/L to 23.4-30.34 mg/L, and the removal efficiency of ammonia-nitrogen reached 83.5%. The removal efficiency of NO2--N reached up to 93.6%, the removal of NH4+-N and NO2--N efficiencies were close to 1:1 (theoretical value 1:1.32), and the total nitrogen removal load reached 2.36-4.80 kg/(m3/d). However, the effluent concentration of total nitrogen was still as high as 165.9-180.7 mg/L, mainly exiting in the form of refractory organics. In addition, the removal of CODCr with ANAMMOX bio-filter process was confirmed, the removal load reached up to 2.39-2.56 kg/(m3/d), the effluent CODCr decreased from 487.9-532.1 mg/L to 188.6-212.3 mg/L, which could meet the requirement of Class II standard of National Discharge Standard for Petrochemical Industry (GB 8978-1996) in China.

Key words: ANAMMOX, acrylic fiber wastewater, bio-filter, nitrogen removal, advanced treatment

CLC Number: 

  • X703.1