Cleaner Technology Transfer to the Polish Textile ... - Miljøstyrelsen

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Topic 6. Optimization of rinsing water consumption in batch machinery Case illustration: Avoid overflow rinsing in jets Concept The main part of water consumption in textile dyeing processes is water for rinsing purposes. Different types of rinsing procedures for batch dyeing processes exist. These procedures should be investigated as to whether change in rinsing procedures could effect savings in water and effluent volume. Especially rinsing by overflow is known to be water consuming, and this project aims at changing from overflow rinsing to a stepwise rinsing procedure. Parameters included in the experimental plan should be time consumption and fabric quality tests. Improvement potentials Savings in water consumption and effluent volume of more than 50% of rinsing water. Relevance All dye-houses with batch machines. 24
Topic 7. Minimization of water for flushing purposes Case illustration: Nozzle head with air intake at the end of the water hose to reduce water consumption for flushing Concept Quite large amounts of water for flushing and cleaning purposes are lost, because the shut off valve for the hose is situated at a long distance from the area of application. This loss could be avoided by a manually actuated nozzle head at the end of the hose, and further minimizations could be obtained by mounting of a nozzle type with a water saving device. It is also anticipated that large amounts of water could be saved in continuous flushing and cleaning applications. It is often seen that e.g. the arrangement, type and number of spraying nozzles lead to an excessive consumption of water, and it should be investigated whether nozzles function property. Improvement potentials Water savings. Relevance All companies. 25
Page 1 and 2: 1999 Cleaner Technology Transfer to
Page 3: Content Preface 5 Summary 7 Part 1.
Page 7: Summary Areas of pollution preventi
Page 11 and 12: 1.1 Programme description Programme
Page 13: Focus on cost-effective options par
Page 17 and 18: 2.1 Introduction This Idea catalogu
Page 19 and 20: Topic 1. Minimization in consumptio
Page 21 and 22: Topic 3. Optimization of cooling by
Page 23: Topic 5. Temperature control of coo
Page 27 and 28: Topic 9. Exchange of batch dyeing m
Page 29 and 30: Topic 11. Introduction of in situ r
Page 31 and 32: Topic 13. Optimization of counter c
Page 33 and 34: Topic 15. Procedure for cleaning of
Page 35 and 36: Topic 17. Change from batch to cont
Page 37 and 38: Topic 19. Desizing with enzymes Cas
Page 39 and 40: Topic 21. Substitution of APEO dete
Page 41 and 42: Topic 23. Change from monoreactive
Page 43 and 44: Topic 25. Substitution of carriers
Page 45 and 46: Topic 27. Substitution of afterchro
Page 47 and 48: Topic 29. Dry conditioning Case ill
Page 49 and 50: Topic 31. Mechanical softening proc
Page 51 and 52: Topic 33. Re-use of pure cooling wa
Page 53 and 54: Topic 35. Re-use of chemically load
Page 55 and 56: Topic 37. Re-use of water from rins
Page 57 and 58: Topic 39. Separation techniques for
Page 59: Topic 41. Evaporation and reclamati
Page 63 and 64: 3.1 Introduction During the Cleaner
Page 65 and 66: The ever increasing demand to shade
Page 67 and 68: The dyeing process The reactive dye
Page 69 and 70: hardness in water and extract from
Page 71 and 72: Figure 7. The effect of complexing
Page 73 and 74: Reduced process time Seilund and C.
Page 75 and 76:
Tabel 1. Degradation af APEO. Table
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Alkylphenol ethoxylates (APEO) This
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3.4 Reclamation and re-use of proce
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Figure 1. Typical process waters fr
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Figure 2. The dependency of precipi
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Advantages and limitations of the w
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Figure 5. Environmental benefits of
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Kolb, M., B. Funke, H.P. Gerber and
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Figure 3. Typical process water fro
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Table 1. Selected chemical for delc
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Figure 9. Profiles for dye-stuff pr
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Conclusions The optimal use of chem
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The conclusion based on lab-scale r
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During the period from 1992 to 1995
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3.8 Environmental labelling John Ha
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The products to be labelled with th
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3.9 Improvement of the rinsing effi
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Table 1. Documentation of savings i
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Part 4. Implementation projects 111
Page 113 and 114:
4.1 Introduction On the basis of th
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and a continued pumping is achieved
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The new recipes were tested in a la
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4.4 Savings and substitution of env
Page 121 and 122:
To illustrate the order of magnitud
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Data sheet Publisher: Ministry of E
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