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  • The largest companies in the TSL industry in Poland in 2011

    Dane Badawcze
    open access

    The data contained in the dataset shows that the most successful transport, forwarding and logistics company in Poland in 2011 was PKP CARGO S.A. The company is the largest carrier in the country, while in the European Union it ranks second in terms of freight transport.

  • Separation of bacteria in UF process

    Dane Badawcze
    open access

    Large quantities of water are used in car washing, so it is necessary to recycle the water, which is made possible by membrane filtration. FP100 (100 kDa) membranes have been used to treat car wash wastewater by ultrafiltration (UF). With time of operation, the properties of the membranes change. The membranes need to be cleaned periodically to prevent...

  • Biofouling UF car wash

    Dane Badawcze
    open access

    Polyethersulfone (PES) membranes were used to separate wastewater from car washes containing bacteria.After the separation was completed, the UF installations were washed with chemical agents.The study examined how effectively these chemical agents remove bacterial contamination from the installation.P3 Ultrasil 11 alkaline solutions (pH = 12) were...

  • Tubular ultrafiltration car wash wastewater

    Dane Badawcze
    open access

    The commercial ultrafiltration (UF) tubular polyvinylidene fluoride (100 and 200 kDa) and polyethersulfone  (4 kDa) membranes were applied for filtration of carwash wastewater. Intensive fouling was notice, which caused over 50% permeate  flux reduction during 3-5 h of filtration process. This phenomenon was reduced by washing the membranes with alkaline...

  • Car wash water reuse

    Dane Badawcze
    open access

    The resistance of automotive coatings to washing water recovered in 50% and 70% from wastewater generated at car wash was tested. The wastewater was purified in the ultrafiltration process using tubular polyvinylidene fluoride membranes (100 and 200 kDa) manufactured by PCI company. The membranes retained oil contamination and over 50% of surfactants....