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Most TCF pulp is produced in Sweden and Finland for sale in Germany, [31] all markets with a high level of environmental awareness. In 1999, TCF pulp represented 25% of the European market. [32] TCF bleaching, by removing chlorine from the process, reduces chlorinated organic compounds to background levels in pulp-mill effluent. [33]
The traditional ECF sequence is DEopDEpD [1]: 14 using the common letter symbols for bleaching stages, [2] though many improved sequences are available. [ 1 ] : 15 Totally chlorine free (TCF) is paper that does not use any chlorine compounds for wood pulp bleaching.
[38] Most TCF pulp is produced in Sweden and Finland for sale in Germany, [36] all markets with a high level of environmental awareness. In 1999, TCF pulp represented 25% of the European market. [39] TCF bleaching, by removing chlorine from the process, reduces chlorinated organic compounds to background levels in pulp mill effluent. [40]
Turner, J. R. (2006). Editorial: Towards a theory of project management: The nature of the functions of project management. International Journal of Project Management, 24, 277–279. Winch, G. M., The construction firm and the construction project: A transaction cost approach, Construction Management and Economics, (1989) 7, 331–345.
A 2010 salary survey of the construction and built environment industry [citation needed] showed the average annual salary of a site manager in the UK to be £36,981. Site managers in areas of growth in the construction industry such as the Middle East earn more, with the average earning across all sector and all levels of experience at £42,424.
Trichloroisocyanuric acid is an organic compound with the formula (CONCl) 3.It is used as an industrial disinfectant, bleaching agent and a reagent in organic synthesis. [1] [2] [3] This white crystalline powder, which has a strong "chlorine odour," is sometimes sold in tablet or granule form for domestic and industrial use.
Hypochlorite (ClO) also has a molecule-to-molecule bleaching potential the same as dichlorine. However, its lower molecular weight leads to a higher potential bleaching power. In the example of lithium hypochlorite, the molecular weight 58.39, so it only takes 58.39 grams (2.060 ounces) to equal the bleaching power of 70.90 grams (2.501 ounces ...
Hydrogen peroxide is by itself a strong bleaching agent and should be used only in diluted form, such as a 3% solution in water. Hypochlorite plus peroxide releases triplet oxygen, which is itself a bleaching agent, but is short-lived in water solution. Reacting large amounts of peroxide can release enough oxygen to create a fire or explosion ...