Environmental Problems. – 2017. – Vol. 2, No. 1

Permanent URI for this collectionhttps://ena.lpnu.ua/handle/ntb/39428

Browse

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Concurrent sorption of Copper and Chromium cations by natural zeolite
    (Publishing House of Lviv Polytechnic National University, 2017) Sabadash, Vira; Gumnytskyy, Jaroslav; Mylianyk, Oksana; Romaniuk, Liliana; Lviv Polytechnic National University; Ecological Agricultural University College of Lviv
    The aim of this work was to study the process of adsorption of Copper and Chromium cations by natural zeolites in static conditions. The change of the chemical composition of the surface of the zeolite as a result of sorption of heavy metals was investigated. The influence of the type of the ions and pH selectivity in absorption of heavy metals removal by zeolite was analysed. The reasons for the selective extraction of Copper from two-component solution were explained.
  • Thumbnail Image
    Item
    Determination of an impact of the composition on the pH level and the concentration of ammonium nitrogen in soil of Pustomyty distrаct, Lviv region
    (Publishing House of Lviv Polytechnic National University, 2017) Кanda, Maria; Malovanyy, Myroslav; Оdnorih, Zoryana; Lviv Polytechnic National University
    This research involves studying the application of palygorskite from Dashukivka Deposit and clinoptilolite from Sokyrnytsia Deposit in production of organic fertilizers prolonged. It is found that maximum ammonia sorption capacity is 1.56×10-2 mg-eq/g of sorbents. The composition proposed has a positive impact on condition of the studied soils. The pH level of soil solution shifts toward neutral, and the level of ammonium nitrogen is uniform throughout 24 days.