Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (01): 108-113.doi: 10.13475/j.fzxb.20180106106

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Pilot study on treatment of polyacrylate sizing wastewater

WANG Fengbo1, WANG Jiayi2, SUN Zheng3, MA Yanxue4, LÜ Yingzhi3, ZHANG Weifeng2, LÜ Yan3, LÜ Mingming3, CHEN Siyu1, LI Yuling4, CHEN Xiaoguang1()   

  1. 1. College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
    2. China Filament WeavingAssociation, Beijing 100020, China
    3. Bashan Weaving Group Co., Ltd., Zibo, Shandong 255000, China
    4. College of Textiles, Donghua University, Shanghai 201620, China
  • Received:2018-01-30 Revised:2018-06-06 Online:2019-01-15 Published:2019-01-18
  • Contact: CHEN Xiaoguang E-mail:cxg@dhu.edu.cn

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Abstract:

In view of the characteristics of polyacrylate wastewater, such as high concentration, hard degradation and single component, a biological treatment method adopting an anaerobic-aerobic reactor based on co-metabolism was studied, focusing on the startup operating of and the performance of the reactor. The results show that the system operating cycle is about 30 d on the basis of increasing the ratio of polyester wastewater. Besides, under the conditions of concentration of chemical oxygen demand (COD) 1 600 mg/L, hydraulic residence time (HRT) of 41.7 h, temperature of (35±3) ℃ and concentration of dissolved orygen (DO) 3.5 mg/L, the average removal rate of COD is 95.2%. The main indexes of the final effluent reaches the water pollutant emission standard of textile dyeing and finishing industry. It is also proved that the system has strong load impact resistance.

Key words: sizing, polyacrylate, sizing wastewater, pilot study, wastewater treatment

CLC Number: 

  • X703

Fig.1

Diagram of pilot process flow"

Tab.1

Main water quality paramemters of wastewater"

废水种类 COD/
(mg·L-1)		 氨氮质量浓度/
(mg·L-1)		 pH值
生活污水 244.8~310.6 43.28~60.74 7.26~ 8.06
浆料废水 862.8~4 103.2 19.2~91.3 6.76~7.29

Fig.2

Changes of COD and removal rate of wastewater in start-up process"

Tab.2

Comprehensive analysis of water quality"

项目 COD/
(mg·L-1)		 氨氮质量浓度/
(mg·L-1)		 pH值 B/C
浆料废水 1 610.8 35.8 6.76 0.031
厌氧进水 1 562.1 54.3 6.97 0.156
厌氧出水 921.6 116.3 7.42 0.287

Fig.3

Changes of COD and removal rate of wastewater in anaerobic-aerobic process"

Fig.4

Changes of ammonia nitrogen concentration in anaerobic-aerobic process"

Tab.3

Treatment case of refractory wastewater"

工艺名称 原水
类型		 进水水力停留
时间/h		 进水COD/
(mg·L-1)		 COD去除率/% 废水体积/
L		 试验类型 参考文献
SSSAB+AFB 浆料废水 41.7 1 600 95.2(41.1+54.1) 1 000 中试 本文
ABR PVA废水 48 1 200 80 28 小试 [10]
厌氧+SMBR PVA废水 30 1 000 95(20+75) 360 中试 [11]
水解酸化+好氧 PVA废水 24 1 300 89~95 50 小试 [12]

Tab.4

Change of sludge characteristics"

时期 平均粒径/
mm		 平均沉降
速度/(m·h-1)		 辅酶F420浓度/
(μmol·g-1)
启动前 2.62 72.47 —
启动完成 3.46 107.39 0.17

Fig.5

Performance of SSSAB reactor in influent COD concentration shock test"

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