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GB/T 31327-2014 English PDF

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GB/T 31327-2014: Specification of membrane system for seawater desalination pretreatment
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Basic data

Standard ID GB/T 31327-2014 (GB/T31327-2014)
Description (Translated English) Specification of membrane system for seawater desalination pretreatment
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J88
Classification of International Standard 13.020.01
Word Count Estimation 11,121
Date of Issue 12/5/2014
Date of Implementation 6/1/2015
Quoted Standard GB/T 17219-1998; GB/T 20103; GB/T 50619-2010; HY/T 112-2008
Regulation (derived from) Announcement of Newly Approved National Standards 2014 No. 27
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This Standard specifies the component selection pretreatment membrane desalination systems, system design, equipment components, equipment layout and installation, as well as automatic control. This Standard is applicable to ultra (micro) membrane as the

GB/T 31327-2014: Specification of membrane system for seawater desalination pretreatment

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Specisication of membrane system for seawater desalination pretreatment ICS 13.020.01 J88 National Standards of People's Republic of China Membrane desalination pretreatment system design specifications Issued on. 2014-12-05 2015-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Super (micro) membrane component selection 2 4.1 The main purpose and function of membrane 2 4.2 membrane materials 2 4.3 membrane structure and its components 2 5 membrane desalination pretreatment system design 3 5.1 General provisions 3 5.2 Water Quality Requirements 3 5.3 Process Parameters 4 5.4 Process Design 4 6 membrane desalination pretreatment system devices 6 6.1 Device Configuration 6 6.2 backwashing and chemically enhanced backwash device 6 6.3 chemical cleaning means 7 6.4 Piping Systems Requirements 7 Equipment and installation 7 7 8 Automation System 7

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard by the National Standardization Technical Committee membrane (SAC/TC382) and focal points. This standard was drafted. Hangzhou Water Treatment Technology Research and Development Center Co., Ltd., Tianjin Motian Membrane Technology Co., Ltd., Shandong Zhaojin MOTIAN limited liability company, Hangzhou (torch) West Doumen Film Industry Co., Ltd., Nanjing University, East China University of Technology. The main drafters of this standard. Tanyong Wen, Shen Ju Lee, Dai Haiping, Bo, Zheng Honglin, Wang Yue translation, Wang Wei, Chu Hung, Xing Weihong, XU Zhen-liang, Wang Xinyan. Membrane desalination pretreatment system design specifications

1 Scope

This standard specifies the component selection desalination pretreatment membrane system, system design, equipment components, equipment layout and installation, as well as automatic Of control. This standard applies to super (micro) membrane as the representative of the pressure-driven membrane filtration desalination pretreatment system design, applied to other water Engineering design process super (micro) membrane system can refer to use.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 17219-1998 drinking water distribution equipment and protective materials safety evaluation of GB/T 20103 membrane separation technology terms GB/T 50619-2010 desalination power plant engineering design specifications HY/T 112-2008 ultrafiltration membrane and its components

3 Terms and Definitions

GB/T 20103 and GB/T 50619 and defined by the following terms and definitions apply to this document. For ease of use, the following repeating It lists the GB/T 20103 and GB/T 50619 Some terms and definitions. 3.1 Ultrafiltration ultrafiltration A pressure-driven separation processes molecular weight ranging from several hundred to several millions of solutes and particles. [GB/T 20103-2006, the definition 5.2.1] 3.2 Microfiltration microfiltration A pressure-driven separation process 0.01μm to several μm microparticles. [GB/T 20103-2006, the definition 5.2.2] 3.3 RO reverseosmosis At temperatures above the osmotic pressure difference, a solvent (e.g., water) through a semipermeable membrane into the low pressure side of the membrane, and the solution of other components (e.g. Salt) are blocked in the high-pressure side of the membrane and is discharged with the concentrated solution to achieve effective separation process. [GB/T 20103-2006, the definition 4.2.2] 3.4 Flux flux The amount of component per unit time through unit area of \u200b\u200bmembrane. [GB/T 20103-2006, the definition 2.1.33] 3.5 Transmembrane pressure transmembranepressure; TMP Importers of raw water side and the average pressure difference between the permeate side pressure, namely the average pressure difference across the membrane.

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