PVA凝胶内基质扩散系数测定及其传质性能的优化

管清坤; 杨宏

doi:10.12030/j.cjee.201512042

环境工程学报

PVA凝胶内基质扩散系数测定及其传质性能的优化

管清坤, 杨宏. PVA凝胶内基质扩散系数测定及其传质性能的优化[J]. 环境工程学报, 2017, 11(3): 1375-1382. doi: 10.12030/j.cjee.201512042

引用本文:

管清坤, 杨宏. PVA凝胶内基质扩散系数测定及其传质性能的优化[J]. 环境工程学报, 2017, 11(3): 1375-1382. doi: 10.12030/j.cjee.201512042

GUAN Qingkun, YANG Hong. Determination of diffusion coefficient of PVA gel and optimization of its mass transfer performance[J]. Chinese Journal of Environmental Engineering, 2017, 11(3): 1375-1382. doi: 10.12030/j.cjee.201512042

Citation:

GUAN Qingkun, YANG Hong. Determination of diffusion coefficient of PVA gel and optimization of its mass transfer performance[J]. Chinese Journal of Environmental Engineering, 2017, 11(3): 1375-1382. doi: 10.12030/j.cjee.201512042

PVA凝胶内基质扩散系数测定及其传质性能的优化

管清坤¹,
杨宏¹

1.
北京工业大学建筑工程学院, 北京市水质科学与水环境恢复重点实验室, 北京 100124
基金项目:
国家自然科学基金资助项目（50578001）
中图分类号: X703

Determination of diffusion coefficient of PVA gel and optimization of its mass transfer performance

GUAN Qingkun¹,
YANG Hong¹

1.
Key Laboratory of Beijing Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
Fund Project:

摘要: 凝胶的传质性能是影响其处理效能的主要因素之一，为了提高PVA凝胶内基质的扩散能力，对PVA凝胶的传质性能进行了研究，通过单因素实验确定添加剂活性炭和CaCO3对传质性能的影响程度，采用2因素5水平的响应面分析法（response surface methodology，RSM）优化了PVA凝胶的传质性能。研究结果表明：添加适量的活性炭和CaCO3可有效改善PVA凝胶的传质性能；在添加剂最优添加量下，NH4+-N、NO2--N和NO3--N在凝胶中的有效扩散系数分别为1.363 7×10-9、1.085 0×10-9和1.019 9×10-9 m2·s-1。
- 细菌细胞固定化 /
- PVA凝胶 /
- 扩散 /
- 响应面分析
Abstract: The mass transfer performance of packing is one of the main determinants of its treatment effectiveness. To improve the diffusion ability of PVA gel,its mass transfer performance was studied by a single-factor test to determine the effect of the activated carbon and CaCO3 contents on the mass transfer performance. The mass transfer performance was optimized using response surface methodology (RSM). The results show that adding the appropriate amount of activated carbon and CaCO3 can effectively improve the mass transfer performance of PVA gel. Under the optimized conditions,the effective diffusion coefficients of NH4+-N,NO2- N,and NO3--N in PVA gel were 1.363 7×10-9,1.085 0×10-9,and 1.019 9×10-9 m2·s-1,respectively.
- immobilized cells /
- PVA gel /
- diffusion /
- response surface analysis (RSA)

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PVA凝胶内基质扩散系数测定及其传质性能的优化

管清坤¹,
杨宏¹

1. 北京工业大学建筑工程学院, 北京市水质科学与水环境恢复重点实验室, 北京 100124

收稿日期: 2016-01-29

基金项目:

国家自然科学基金资助项目（50578001）

关键词:

摘要: 凝胶的传质性能是影响其处理效能的主要因素之一，为了提高PVA凝胶内基质的扩散能力，对PVA凝胶的传质性能进行了研究，通过单因素实验确定添加剂活性炭和CaCO3对传质性能的影响程度，采用2因素5水平的响应面分析法（response surface methodology，RSM）优化了PVA凝胶的传质性能。研究结果表明：添加适量的活性炭和CaCO3可有效改善PVA凝胶的传质性能；在添加剂最优添加量下，NH4+-N、NO2--N和NO3--N在凝胶中的有效扩散系数分别为1.363 7×10-9、1.085 0×10-9和1.019 9×10-9 m2·s-1。

English Abstract

Determination of diffusion coefficient of PVA gel and optimization of its mass transfer performance

GUAN Qingkun¹,
YANG Hong¹

1. Key Laboratory of Beijing Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China

Received Date: 2016-01-29

Fund Project:

Keywords:

Abstract: The mass transfer performance of packing is one of the main determinants of its treatment effectiveness. To improve the diffusion ability of PVA gel,its mass transfer performance was studied by a single-factor test to determine the effect of the activated carbon and CaCO3 contents on the mass transfer performance. The mass transfer performance was optimized using response surface methodology (RSM). The results show that adding the appropriate amount of activated carbon and CaCO3 can effectively improve the mass transfer performance of PVA gel. Under the optimized conditions,the effective diffusion coefficients of NH4+-N,NO2- N,and NO3--N in PVA gel were 1.363 7×10-9,1.085 0×10-9,and 1.019 9×10-9 m2·s-1,respectively.

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PVA凝胶内基质扩散系数测定及其传质性能的优化

Determination of diffusion coefficient of PVA gel and optimization of its mass transfer performance

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PVA凝胶内基质扩散系数测定及其传质性能的优化

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Determination of diffusion coefficient of PVA gel and optimization of its mass transfer performance

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