Environmental Problems

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    Analysis of poultry manure utilisation methods to produce organic fertiliser
    (Lviv Politechnic Publishing House, 2018-02-26) Malovanyy, Myroslav; Odnorih, Zoryana; Kanda, Mariya; Lviv Polytechnic National University
    This article provides an overview of the poultry manure utilisation issues. It gives a comparative analysis of the methods of composting and vermiculation, production of organic-mineral fertilisers, granulation and thermal drying of the output raw product. Integrated combination of granulation and thermal drying is considered to be the most efficient in the poultry manure processing technology.
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    Investigation of the processes of chemical (ACID) labilizing of clinoptilolite
    (Lviv Politechnic Publishing House, 2017-03-21) Troszkiy, Volodymyr; Hnativ, Zoriana; Duleba, Vasyl; Kriuchenko, Tetiana; Lviv Polytechnic National University
    The results of research of the chemical activation process of clinoptilolite from Sokirnytskyi field are shown. As a result of the research, the effectiveness of the influence on zeolite hydrochloric and sulfuric acids are compared. It should be noted that the advantage is on the side of hydrochloric acid. It was established that the increase in the concentration of sulfuric acid and the time of zeolite processing leads only to the increase in the content of the amorphous phase. As a result of the experiment, optimal conditions for zeolite activation: reagent – hydrochloric acid, concentration of acid – 7 %, the processing time – 2 hours, phase ratio T:R – 1:2 were selected.
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    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.