GB/T 31327-2014Specification of membrane system for seawater desalination pretreatment (English PDF)
海水淡化预处理膜系统设计规范
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 5, 2014
Implementation date
June 1, 2015
Scope
GB/T 31327-2014 is the English-translated version of 海水淡化预处理膜系统设计规范.
GB/T 31327-2014 is the Chinese standard "Specification of membrane system for seawater desalination pretreatment". Its scope clause reads: 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. Its clauses include terms and definitions.
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Document preview — GB/T 31327-2014
National Standard of the People's Republic of China
- ICS
- 13.020.01
- Classification
- J 88
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Super (micro) membrane component selection
- 4.1 The main purpose and function of membrane
- 4.2 membrane materials
- 4.3 membrane structure and its components
- 5 membrane desalination pretreatment system design
- 5.1 General provisions
- 5.2 Water Quality Requirements
- 5.3 Process Parameters
- 5.4 Process Design
- 6 membrane desalination pretreatment system devices
- 6.1 Device Configuration
- 6.2 backwashing and chemically enhanced backwash device
- 6.3 chemical cleaning means
- 6.4 Piping Systems Requirements
- 8 Automation System
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
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
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
The amount of component per unit time through unit area of membrane.
[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.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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