H2-FV23-B flender industriegetriebe gmbh penig Helical speed reduction gearbox H2

Flender/Flender Gear Units/Helical speed reduction gearbox H2

bly be exploited in the use of rotary kiln pyrolysis in fields other than the coking of coal tar pitch. 2 Duration: 0 0 8 - 3 1 9 0ZH8 Subject: Minimising the emission of halogen organic compounds in textile cleaning - solutions for cleaning work wear Research centre: WFK - Forschungsinstitut fur Reinigungstechnologie Adlerstrasse 4, Postfach 1 0 6 4 Krefeld Government sponsorship: DM 7,2.0 Sponsorship ratio: 1% 1. Purpose of the project According to Art 7a of the Water Mana ement Act, halogen organiccompounds are,,hazard- ous substances", whose direct and in3rect discharge into open waters must be minimised according to the state of the art The summary parameter of the adsorbable organic halogen compounds (AOX) is used as the basis for measurement Halogen organic substances occur in certain textile cleaning processes (use of active chlorine for bleaching and disinfection, use of halogen organicsolvents asa cleaning medium) or - ar ticularly in the case of work wear - as components of the soil (together with other hazard& substances, such as heavy metals). Cleaning with solvents (dry-cleanin )would permit virtually wastewater-free cleaning, where all hazardous substances containejin soil remain behind in the distillation residue and can be disposed of without endangering open waters However, tetrachloroethylene, the most com- be reliably avoided due to t8e high solvent retention of fibres, such as polyester and wool. These circumstances resulted in the following goals for the research project On the one hand, to investigate whether the formation of AOX during the bleaching and disinfection of textiles with active chlorine can be minimised using process technology measures, and could be suitable for cleaning work wear severely contaminated with hazardous sub- stances ~ ~~ - -~ ~~-~ ~~~ ~ ~~~ ~ ~ ~~~ mon solvent, leads to ecolo ical and toxicological problems, because AOX emissions cannot - ~ ~ On the other hand, to search for halog