Adsorption Model of Reverse Osmosis Concentrate Treatment by Powdered Activated Carbon

GU Ping; CUI Hang yu; ZHAO Chun xia; ZHANG Guang hui

doi:10.11835/j.issn.1674-4764.2011.06.023

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Adsorption Model of Reverse Osmosis Concentrate Treatment by Powdered Activated Carbon

更新时间：2023-11-28

- Adsorption Model of Reverse Osmosis Concentrate Treatment by Powdered Activated Carbon
- Journal of Civil and Environmental Engineering Vol. 33, Issue 6, Pages: 129-134(2011)
- 作者机构：
  
  天津大学环境科学与工程学院,天津,300072
- 作者简介：
- 基金信息：
- DOI：10.11835/j.issn.1674-4764.2011.06.023
  CLC：
- Published：2011
- 稿件说明：
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GU Ping, CUI Hang yu, ZHAO Chun xia, et al. Adsorption Model of Reverse Osmosis Concentrate Treatment by Powdered Activated Carbon[J]. Journal of Civil and Environmental Engineering, 2011, 33(6): 129-134.
DOI：

GU Ping, CUI Hang yu, ZHAO Chun xia, et al. Adsorption Model of Reverse Osmosis Concentrate Treatment by Powdered Activated Carbon[J]. Journal of Civil and Environmental Engineering, 2011, 33(6): 129-134. DOI： 10.11835/j.issn.1674-4764.2011.06.023.

摘要

粉末活性炭(PAC)可显著吸附去除反渗透(RO)浓水中的COD和UV254

使其能够达标排放或进一步资源化。首先通过正交实验选择主要吸附影响因素及其水平范围

再通过单因素实验确定COD和UV254的吸附等温线和吸附动力学方程

最后通过响应曲面法(RSM)实验建立了去除COD和UV254的吸附模型

模型中以PAC投量和吸附时间为自变量。当PAC投量为09 g·L-1、吸附时间为50 min时

COD和UV254的RSM模型预测去除率分别为697%和824%

实测去除率分别为653%和818%。可见

RSM模型在设计范围内较好的预测了COD和UV254的去除率

能为工程实践提供全面可靠的数据基础。

Abstract

COD and UV254 of concentrate from reverse osmosis (RO) are removed significantly by powdered activated carbon (PAC) adsorption

which makes the effluent meet the related discharged standard or further reclamation demand. First

main adsorption factors and their levels were selected through orthogonal experiments. Then adsorption isotherms and adsorption kinetics equations about COD and UV254 were obtained by single factor experiments. Finally

adsorption model of COD and UV254 removal were established via response surface methodology (RSM) experiments

in which PAC dosage and adsorption time were acted as independent variables. COD and UV254 predictive removal of RSM model were 69.7% and 82.4% respectively

and the corresponding measured values were 65.3% and 81.8% when the PAC dosage was 0.9 g·L-1 and adsorption time was 50 min. It is shown RSM models can predict COD and UV254 removal very well in the design range

which provides a comprehensive and reliable data basis for engineering application.

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