Analysis of process structure characteristics for second stage RO system

doi:10.11894/iwt.2019-1013

Industrial Water Treatment ›› 2020, Vol. 40 ›› Issue (11): 120-122. doi: 10.11894/iwt.2019-1013

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Analysis of process structure characteristics for second stage RO system

Jiawei Han^1,^2,³,Hongying Yuan^1,^2,³,Xueli Shi⁴,大为靖^1,^2,^3,*()

Received:2020-07-15 Online:2020-11-20 Published:2020-11-24
Contact: 大为靖 E-mail:david_j5996@sina.com

二级反渗透系统的工艺结构特征分析

韩嘉玮^1,^2,³,苑宏英^1,^2,³,石雪莉⁴,靖大为^1,^2,^3,*()

¹ 天津城建大学环境与市政工程学院, 天津 300384
² 天津市水质科学与技术重点实验室, 天津 300384
³ 基础设施防护和环境绿色生物科技国际联合研究中心, 天津 300384
⁴ 中国膜工业协会, 北京 100029

通讯作者: 靖大为 E-mail:david_j5996@sina.com
作者简介:韩嘉玮(1995-),硕士
基金资助:
国家科技重大专项课题(2017ZX07107-002-04);天津市水质科学与技术重点实验室开放研究基金资助项目(TJKLAST-PT-2016-06)

Abstract

Abstract:

基于二级反渗透系统低给水含盐量、低污染物浓度、高膜平均通量、高浓差极化度、高系统回收率的两低三高特征，指出了一级系统用高压膜、二级系统用低压膜的技术特点；明确了85%收率二级系统应采用整倍于3-1/4结构，即8 m短流程；分析了二级浓水加压回流至一级系统给水泵后端工艺的经济性。

Key words: 反渗透工艺, 膜堆结构, 浓水回流

摘要：

关键词: 反渗透工艺, 膜堆结构, 浓水回流

CLC Number:

X703

Jiawei Han,Hongying Yuan,Xueli Shi,大为靖. Analysis of process structure characteristics for second stage RO system[J]. Industrial Water Treatment, 2020, 40(11): 120-122.

韩嘉玮,苑宏英,石雪莉,靖大为. 二级反渗透系统的工艺结构特征分析[J]. 工业水处理, 2020, 40(11): 120-122.

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URL: https://gyscl.magtechjournal.com/EN/10.11894/iwt.2019-1013

https://gyscl.magtechjournal.com/EN/Y2020/V40/I11/120

两级膜品种	两级压强/MPa	一级前后段		一级产水电导率/（μS·cm^-1）	二级前后段		二级产水电导率/（μS·cm^-1）	系统功耗/kW
两级膜品种	两级压强/MPa	通量/（L·m^-2·h^-1）	浓差极化度	一级产水电导率/（μS·cm^-1）	通量/（L·m^-2·h^-1）	浓差极化度	二级产水电导率/（μS·cm^-1）	系统功耗/kW
CPA3-CPA3	1.02/1.11	24.9/14.3	1.17/1.07	38.8	36.3/34.0	1.39/1.29	1.55	88.7
ESPA2-CPA3	0.94/1.11	26.6/10.9	1.18/1.04	44.6	36.3/33.9	1.39/1.29	1.61	84.9
CPA3-ESPA2	1.02/0.88	24.9/14.3	1.17/1.07	38.8	36.8/32.5	1.40/1.27	1.63	80.8
ESPA2-ESPA2	0.94/0.89	26.6/10.9	1.18/1.04	44.6	36.8/32.4	1.40/1.29	1.68	77.0

两级膜品种	两级压强/MPa	一级前后段		一级产水电导率/（μS·cm^-1）	二级前后段		二级产水电导率/（μS·cm^-1）	系统功耗/kW
两级膜品种	两级压强/MPa	通量/（L·m^-2·h^-1）	浓差极化度	一级产水电导率/（μS·cm^-1）	通量/（L·m^-2·h^-1）	浓差极化度	二级产水电导率/（μS·cm^-1）	系统功耗/kW
CPA3-CPA3	1.02/1.11	24.9/14.3	1.17/1.07	38.8	36.3/34.0	1.39/1.29	1.55	88.7
ESPA2-CPA3	0.94/1.11	26.6/10.9	1.18/1.04	44.6	36.3/33.9	1.39/1.29	1.61	84.9
CPA3-ESPA2	1.02/0.88	24.9/14.3	1.17/1.07	38.8	36.8/32.5	1.40/1.27	1.63	80.8
ESPA2-ESPA2	0.94/0.89	26.6/10.9	1.18/1.04	44.6	36.8/32.4	1.40/1.29	1.68	77.0

膜堆结构	产水电导率/（μS·cm^-1）	工作压强/MPa	前后段壳浓水/（m³·h^-1）	前后段通量/（L·m^-2·h^-1）	前后段浓差极化度	功耗/kW
20-10/6（10倍2-1/6）	1.68	0.85	4.60/3.50	32.3/25.1	1.21/1.21	71.8
24-12/5（12倍2-1/5）	1.69	0.80	3.90/2.90	31.6/26.4	1.25/1.28	67.6
30-15/4（15倍2-1/4）	1.70	0.76	3.20/2.40	31.1/27.5	1.30/1.37	64.2

膜堆结构	产水电导率/（μS·cm^-1）	工作压强/MPa	前后段壳浓水/（m³·h^-1）	前后段通量/（L·m^-2·h^-1）	前后段浓差极化度	功耗/kW
20-10/6（10倍2-1/6）	1.68	0.85	4.60/3.50	32.3/25.1	1.21/1.21	71.8
24-12/5（12倍2-1/5）	1.69	0.80	3.90/2.90	31.6/26.4	1.25/1.28	67.6
30-15/4（15倍2-1/4）	1.70	0.76	3.20/2.40	31.1/27.5	1.30/1.37	64.2

膜堆结构	产水电导率/（μS·cm^-1）	工作压强/MPa	前后段壳浓水/（m³·h^-1）	前后段通量/（L·m^-2·h^-1）	前后段浓差极化度	功耗/kW
40-20/4（20倍2-1/4）	1.54	0.85	3.60/2.60	35.0/31.0	1.30/1.37	107.7
45-15/4（15倍3-1/4）	1.55	0.84	2.70/3.50	34.6/30.6	1.40/1.27	106.4
48-12/4（12倍4-1/4）	1.57	0.83	2.20/4.40	34.5/30.2	1.48/1.21	105.1
30-10/6（10倍3-1/6）	1.53	0.92	3.80/5.30	35.7/27.5	1.28/1.15	116.5
40-08/6（10倍4-1/6）	1.55	0.90	3.10/6.60	35.4/26.7	1.34/1.12	144.0

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二级反渗透系统的工艺结构特征分析

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膜堆结构	壳装元件数量/支	膜壳数量/支	高价膜壳单价/元	高价膜壳总价/万元	低价膜壳单价/元	低价膜壳总价/万元	年运行电费/万元
27-9/4（9倍3-1/4）	4	36	2 500	9.00	1 600	5.76	43.3
16-8/6（8倍2-1/6）	6	24	2 800	6.72	2 000	4.80	48.1

1	程方, 邢国平. 水处理与膜分离技术问答[M]. 北京: 化学工业出版社, 2012: 11.
2	靖大为. 反渗透系统优化设计与运行[M]. 北京: 化学工业出版社, 2016: 2.
3	董翠玲. 二级反渗透系统的透盐率[J]. 天津城市建设学院学报, 2007, 13 (1): 54- 59. URL
4	马晓莉. 反渗透系统结构设计实例分析[J]. 水处理技术, 2008, 34 (5): 88- 91. URL

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