Reverse osmosis concentrate treated by Fenton reagent oxidation and biochemical coupling technology

doi:10.11894/1005-829x.2017.37(3).017

Abstract

Abstract:

The Fenton reagent oxidation and biochemical coupling technology has been used for treating the RO concentrate of a chemical fiber company. The influences of various factors on Fenton oxidation process are investigated,and the sequencing batch reactor(SBR)method is applied to further biochemical treatment of the Fenton oxidation effluent. The results show that the optimal conditions for RO concentrate oxidation by Fenton reagent are as follows: initial pH = 3.5,n(H₂O₂):n(Fe²⁺)= 5:1,H₂O₂ (30%)dosage=1 mL/L and reaction time 120-180 min. After the coupling treatment,the RO concentrate COD deceases from 180 mg/L to below 50 mg/L, reaching the Level 1A standard specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918—2002).

Key words: reverse osmosis(RO), RO concentrate, Fenton oxidation, biological treatment

摘要：

采用Fenton 试剂氧化与生化耦合技术处理某化纤企业的RO 浓水，考察了各因素对Fenton 氧化过程的影响，并用SBR 法对Fenton 氧化出水做进一步的生化处理。结果表明，用Fenton 试剂氧化RO 浓水的适宜条件为：pH=3.5、n（H₂O₂）：n（Fe²⁺）=5：1、H₂O₂（30%）用量1 mL/L、反应时间120~180 min，耦合处理后，RO浓水COD 由180 mg/L 降到50 mg/L 以下，达到了《城镇污水处理厂污染物排放标准》（GB 18918—2002）一级A标准。

关键词: 反渗透, 反渗透浓缩水, Fenton氧化, 生化处理

CLC Number:

X703.1

Shen Xiaoqiang, Sheng Mei, Zhuo Yakun, Liang Xueke, Cao Guomin. Reverse osmosis concentrate treated by Fenton reagent oxidation and biochemical coupling technology[J]. INDUSTRIAL WATER TREATMENT, 2017, 37(3): 74-77.

沈晓强, 盛梅, 卓亚昆, 梁雪珂, 曹国民. Fenton试剂氧化与生化耦合技术处理反渗透浓缩水[J]. 工业水处理, 2017, 37(3): 74-77.

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https://www.iwt.cn/EN/Y2017/V37/I3/74

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