Water Consumption in Paper Industry – Reduction Capabilities and the Consequences

Conference paper
Part of the NATO Science for Peace and Security Series C: Environmental Security book series (NAPSC)

Abstract

Water is particularly important substance in papermaking. It plays essential role in fibers transportation, equipment cleaning, lubrication, cooling and in development of a product quality. A tendency to reduce the fresh water consumption in paper production is economically and environmentally justifiable but it must be emphasized that strict closing of water system in paper mill has significant negative impact on several technological operations. High water temperature, as well as increased content of suspended and dissolved solids in water system of a paper machine is examples of major consequences of closing the water loop. As a result, serious problems may cause e.g. paper defects, loss of product quality and problems with run ability of a paper machine. Situation becomes even worse when recycled raw materials are used. Hence, methods of fresh water usage reduction in papermaking are very complex issues and usually depend on the degree of closure. Equilibrium between the advantages and the disadvantages relevant to water consumption restrictions should be established. The acceptable level of water loop closure will depend on the several factors e.g. paper quality required, raw materials used, chemical additives, equipment and staff education.

The objective of this chapter is to present main problems related with reduced water consumption in paper industry, to describe the further possibilities of water usage reduction and consequences of this operation for the technological process and for the environment.

Keywords

Paper Papermaking Balance Equilibrium Water consumption Reduction ZLE (Zero Liquid Effluent) 

Abbreviations

AOX

Adsorbable Organic Halogens

BAT

Best Available Technology

BATNEEC

Best Available Technology Not Entailing Excessive Costs

BATEA

Best Available Technology Economically Achievable

BPEO

Best Practicable Environmental Option

BOD

Biochemical Oxygen Demand

COD

Chemical Oxygen Demand

DAF

Dissolved Air Flotation

TDS

Total Dissolved Solids

EGSB

Expanded Granular Sludge Bed reactor

IPPC

Integrated Pollution and Prevention Control

MBBR

Moving Bed Bio Reactor

NF

Nanofiltration

RO

Reverse Osmosis

UF

Ultrafiltration

NZLE

Near Zero Liquid Effluent

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Institute of Papermaking and PrintingLodz Technical UniversityLodzPoland

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