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  • BSI
    BS ISO 23044:2020 Guidelines for softening and desalination of industrial wastewater for reuse
    Edition: 2020
    $435.35
    / user per year

Description of BS ISO 23044:2020 2020

This document provides guidance on, the evaluation and comparison of wastewater softening and desalination processes for industrial wastewater reclamation and reuse with specific consideration for the following six: 1) chemical precipitation; 2) ion exchange; 3) nanofiltration (NF); 4) reverse osmosis (RO); 5) electrodialysis (ED) and 6) electrodeionization (EDI). This document provides guidance on the characterisation of both influent and effluent quality (e.g. hardness, alkalinity, etc.) and the effects of these processes on those constituents. The purpose of softening and desalination is only for the reuse usages that have requirements for hardness and salinity, such as cooling circulating water, boiler water, production process water, and cleaning water.

This document includes the following sub-processes of wastewater softening and desalination processes:

  1. wastewater softening processes based on chemical precipitation, ion exchange and NF, which aim to remove hardness ions, such as Mg 2+ and Ca 2+;

  2. desalination processes based on ion exchange, RO, ED, EDI and NF, which aim to remove the most of total dissolved solids (TDS).

This document is applicable to:

  1. industrial saline wastewater, which has been pre-treated to remove most of the organic matters if necessary;

  2. the selection or design of wastewater softening and desalination processes for reuse of wastewater from industries.



Standard NumberBS ISO 23044:2020
TitleGuidelines for softening and desalination of industrial wastewater for reuse
StatusDefinitive
Publication Date2020-07-22
Identical National Standard OfISO 23044
DescriptorsWater softening, Desalination, Waste-water pipes, Water treatment, Water purification
ICS13.030.40 Installations and equipment for waste disposal and treatment, 13.030.20 Liquid wastes. Sludge
CommitteeB/505/50
ISBN978 0 580 52334 2
PublisherBSI
Pages24

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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