NRactConseil & Agence

Knowledge base

Understanding filtration

Six parts and appendices, from the principle of solid-liquid separation to buying filter cloths. The articles are based on cited public sources; anything drawn from field experience is flagged as such.

Pathway

New to filtration

1.1 Filtration, settling, centrifugation → 1.2 Filter cake, filtrate and dry solids content → 2.1 The recessed chamber filter press → 3.1 Fibres and what they withstand

Pathway

My cloths wear out too fast

4.1 Reading a used cloth → 4.2 Cloth failure: the usual causes → 4.3 Leaks at the seals → 4.4 Blinding and washing → 4.5 Keeping a service history → 6.2 Setting up a comparative trial

Map of the articles

1.1 · Filtration, settling, centrifugation 1.2 · Filter cake, filtrate, dry solids 1.3 · Reading a filtration curve 1. Separationbasics 2.1 · Recessed chamber filter press 2.2 · Membrane filter press 2.3 · Belt filters 2.4 · Disc filters 2.5 · Candle and tower filters 2. Equipment 3.1 · Fibres and what they withstand 3.2 · Woven, nonwoven, mono/multifilament 3.3 · Permeability and fineness 3.4 · Seams, necks and fastenings 3. Filtermedia 4.1 · Reading a used cloth 4.2 · Cloth failure: the usual causes 4.3 · Leaks at the seals 4.4 · Blinding and washing 4.5 · Keeping a service history 4. Diagnosinga cloth 5.1 · Brewing 5.2 · Sugar carbonatation scums 5.3 · Kaolin, talc and carbonates 5.4 · Chemicals and pigments 5.5 · Industrial sludges 5. Processesby sector 6.1 · Preparing a shutdown 6.2 · Setting up a comparative trial 6.3 · Cost per tonne 6.4 · Reading a specification 6. Operating andpurchasing A · Glossary B · Standards and regulations C · Resources Appendices Understanding

1. Separation basics

  1. 1.1Filtration, settling, centrifugation
  2. 1.2Filter cake, filtrate and dry solids content
  3. 1.3Reading a filtration curve

2. Equipment

  1. 2.1The recessed chamber filter press
  2. 2.2The membrane filter press
  3. 2.3Belt filters
  4. 2.4Disc filters
  5. 2.5Candle and tower filters

3. Filter media

  1. 3.1Fibres and what they withstand
  2. 3.2Woven, nonwoven, monofilament, multifilament
  3. 3.3Permeability and fineness
  4. 3.4Seams, necks and fastenings

4. Diagnosing a cloth

  1. 4.1Reading a used cloth
  2. 4.2Cloth failure: the usual causes
  3. 4.3Leaks at the seals
  4. 4.4Blinding and washing
  5. 4.5Keeping a service history

5. Processes by sector

  1. 5.1Brewing
  2. 5.2Sugar factory carbonatation lime cake (scums)
  3. 5.3Kaolin, talc and carbonates
  4. 5.4Chemicals and pigments
  5. 5.5Industrial sludges

6. Operating and purchasing

  1. 6.1Preparing a shutdown
  2. 6.2Setting up a comparative trial
  3. 6.3Cost per tonne
  4. 6.4Reading a specification

Appendices

  1. AGlossary
  2. BStandards and regulations
  3. CResources

29 chapters and appendices · click a title to read the article.