Abstract
To improve the efficiency of the existing plant for refractory petrochemical dry-spun acrylic fiber (DAF) wastewater treatment, a pilot-scale hybrid anoxic/oxic-membrane bioreactor (A/O-MBR) system with multi-cell section was designed and tested. The operation parameters, alkalinity and carbon source demands in nitrification/denitrification and removal performance of typical pollutants were investigated, and the results were compared with those from the existing wastewater treatment plant (WWTP) of DAF factory. It showed that at hydraulic retention time >32 h, recycle ratio of 80 % and pH 7.2–7.8 in nitrification stage, the average removal efficiency of COD, NH4 +–N and TN in the hybrid A/O-MBR could reach 56.5, 86.6 and 45.9 %, respectively, which had been significantly higher than those of the existing WWTP. The deficiency of alkalinities and carbon sources hindered further nitrogen removal; therefore, Na2CO3 and NaAc were supplemented to improve the performance of nitrification and denitrification, and the recycle ratio was optimized from 80 to 200 %. Then, under the conditions of 200 % recycle ratio, 97.8–148.5 mg/L of alkalinity addition to oxic tank and 107.4–149.6 mg/L of carbon source addition to anoxic tank, the nitrification and denitrification performance in the hybrid A/O-MBR was clearly enhanced, and the NH4 +–N and TN removal efficiency could be improved from 64.3 and 45.9 to 86.9 and 60.5 %, respectively. Meanwhile, the removal efficiency of typical pollutants SO3 2−, CN−, AN, DMF, BOD and TOC reached 99.3, 91.3, 100, 100, 92.5 and 53.5 %, respectively. Compared with the existing WWPT, the tested hybrid A/O-MBR process had a better treatment performance for nitrification and denitrification, and the effluent could meet the Grade I requirements of the National Discharge Standard of Acrylic Fiber Industry.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
An P, Xu XC, Yang FL, Liu LF, Liu ST (2013) A pilot-scale study on nitrogen removal from dry-spun acrylic fiber wastewater using anammox process. Chem Eng J 222(15):32–40
Bezuidenhout CC, Sizana LC, Leukes WD, Edwards W (2008) Microbial community diversity dynamics in a dual-stage membrane bioreactor (MBR) treating petrochemical wastewater. J Biotechnol 136:607–608
Burke V, Richter D, Hass U et al (2014) Redox-dependent removal of 27 organic trace pollutants: compilation of results from tank aeration experiments. Environ Earth Sci 71(8):3685–3695
Cai XD, Zheng G (2006) Problems in the treatment of wastewater from acrylic fiber production and its existing status of research[J]. Ind Water Treat 26:12–15
GB/T 4287-2012 (2012) Discharge standards of water pollutants for dyeing and finishing of textile industry(S)
Goldoni A, Golfeto C, Teixeira JB et al (2014) Cytotoxic and genotoxic evaluation and chemical characterization of sewage treated using activated sludge and a floating emergent-macrophyte filter in a municipal wastewater treatment plant: a case study in Southern Brazil. Environ Earth Sci 72(5):1503–1509
Im J, Gil K (2013) Changes in the characteristics of organic compounds depending on the nitritation efficiency. Environ Earth Sci 70(3):1297–1305
Li J, Wang J, Luan ZK, Deng YQ, Chen L (2011) Evaluation of performance and microbial community in a two-stage UASB reactor pretreating acrylic fiber manufacturing wastewater. Bioresour Technol 102(10):5709–5716
Li C, Liang S, Zhang J et al (2013) N2O reduction during municipal wastewater treatment using a two-sludge SBR system acclimatized with propionate. Chem Eng J 222(15):353–360
Miao LX, Zhang HL, Wu G (2004) Analysis of technology and research development for treating waste water of dry-acrylic fiber. Contemp Chem Ind 33(5):276–279
National Environmental Protection Administration (2006) Water and wastewater detection and analysis method[M]. China Environmental Science Press, Beijing
Shim JK, Yoo YM, Lee IK (2002) Design and operation considerations for wastewater treatment using a flat submerged membrane bioreactor. Process Biochem 38(2):279–285
Sun JM, Wang XH, Li RX, Zhu WT, Li Y (2011) Hyperhaline municipall wastewater treatment of a processing zone through pilot-scale A/O MBR, part II: nitrogen and phosphorous removal. Procedia Environ Sci 8:781–788
Tong Z, Zhao HZ, An YF, Guo YN (2006) Treatment of printing and dyeing wastewater by integrated A/O MBR system. Technol Water Treat 9(9):60–62
Vocks M, Adam C, Lesjean B et al (2005) Enhanced post-denitrification without addition of an external carbon source in membrane bioreactor. Water Res 39(14):3360–3368
Wang HW, Sun ZB, Sun GH (2005) Study on the treatment process for dry-spun polyacrylonitrile fiber wastewater. Environ Prot Chem Ind 25(2):128–131
Wei J, Song YH, Tu X, Zhao L, Zhi EQ (2013) Pretreatment of dry-spun acrylic fiber manufacturing wastewater by Fenton process: optimization, kinetics and mechanisms. Chem Eng J 218(15):319–326
Yi C, Bao-sheng S, Bin Z (2010) Nitrifying bacteria structure community of different MBR reactor[J]. China Environ Sci 30(1):69–75
Acknowledgments
This work was financed by Major Science and Technology Program for water pollution control and management (2012ZX07202-005 and 2013ZX07202-010).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Tian, Z., Xin, W., Song, Y. et al. Simultaneous organic carbon and nitrogen removal from refractory petrochemical dry-spun acrylic fiber wastewater by hybrid A/O-MBR process. Environ Earth Sci 73, 4903–4910 (2015). https://doi.org/10.1007/s12665-015-4210-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12665-015-4210-4