Effects of HRT on the treatment of printing and dyeing wastewater by ABR

被引：0

作者：

Jiangsu Provincial Academy of Environmental Science, Nanjing, China ^{[1
]}

不详 ^{[2
]}

不详 ^{[3
]}

不详 ^{[4
]}

机构：

[1] Jiangsu Provincial Academy of Environmental Science, Nanjing

[2] Jiangsu Province Key Laboratory of Environmental Engineering, Nanjing

[3] School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing

[4] General Office of Lake Taihu Water Pollution Prevention and Control, Nanjing

来源：

Res. Environ. Sci. | / 3卷 / 466-473期

关键词：

ABR(anaerobic baffled reactor); HRT(hydraulic retention time); Printing and dyeing wastewater; ρ(BOD[!sub]5[!/sub])/ρ(COD[!sub]Cr[!/sub]);

D O I：

10.13198/j.issn.1001-6929.2015.03.19

中图分类号：

学科分类号：

摘要：

This study investigated the characteristics of rapid changes of quality and quantity, poor ratio of ρ(BOD5)/ρ(CODCr) and high color of printing and dyeing wastewater. We conducted a study on printing and dyeing wastewater (i. e., the outflow of adjusting tank in wastewater plant where the percentage of printing and dyeing wastewater is greater than 90%) treatment with ABR under condition of 2 L/h, and focused on the removal effects of CODCr and color, and the improvement of ρ(BOD5)/ρ(CODCr) after ABR treatment. The results indicated that: 1) When average inflow ρ(CODCr) was 517 mg/L, color was 380 and ρ(BOD5)/ρ(CODCr) was 0.20. With the shortened HRT (32, 24, 18, 14 and 10 h), average removal rates of ρ(CODCr) ranged from 46.1% to 22.5%, average removal rates of color changed from 60.6% to 51.0% and improvements of ρ(BOD5)/ρ(CODCr) varied from 0.39 to 0.30.2) With compartments increased, CODCr and color declined gradually. ρ(CODCr) and color of the first compartment occupied the interval values 20.0% and 51.0% of the total removal rate, respectively, which could be confirmed by Uv-vis absorption spectrum scan. 3) The pollutant species within the effluent decreased significantly. All of the anaerobic hydrolysis acids were removed and lipids were significantly reduced, which indicated that the ABR treatment had good ability of anaerobic hydrolysis. The outcomes of this study create a foundation for subsequent aerobic processes. ©, 2015, Editorial department of Molecular Catalysis. All right reserved.

引用

页码：466 / 473

页数：7

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