Environmental Problems

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Subject: search.filters.subject.activated sludge

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    Study of the anaerobic process of industrial water purification in combination with sorption methods
    (Видавництво Львівської політехніки, 2023-02-28) Popovych, Olena; Havryshko, Marianna; Yaremko, Halyna; Makovskiy, Yevhenii; Lviv Polytechnic National University
    The issues of rational use of natural resources, ecological safety and environmental protection are extremely urgent and require immediate human influence on the optimization of technological processes, reducing the impact on the ecosystem. The implementation of food industry technology is accompanied by the formation of a significant amount of wastewater, into which about a third of processed raw materials go, and the concentration of polluting components in them is 10...100 times higher than in household water. The choice of wastewater treatment methods depends on their composition, prospects for further use, the economic feasibility of applying the methods, and the payback rate of the equipment. Therefore, the modern direction of the development of scientific research and wastewater treatment technology consists in the development of fundamentally new methods of deep wastewater treatment and the study of the possibility of using sorbents of natural and artificial origin.
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    Enhancement of environmental security of destruction processes of water pollutants in ecosystems of water treatment plants
    (Lviv Politechnic Publishing House, 2018-02-01) Rotay, Tetyana; Kremenchuk National University named after Mykhailo Ostrogradskyi
    At present, mechanical, chemical, biochemical and physicochemical methods of cleaning are developed and efficiently used to protect water bodies from sewage pollution. The methods of biochemical wastewater purification from organic contaminants with the use of activated sludge have received the highest recognition. Getting of additional nutrients (nitrogen, phosphorus, potassium) and other trophic precursors into the aquatic ecosystem directly leads to immediate biohydrogenase reaction of increase in the number and biomass of the primary producers of organic matter. Chemical composition of water is an important criterion for water quality assessment. Therefore, the study of the dynamics of qualitative and quantitative chemical composition of water is a priority task in determining the efficiency of wastewater treatment in bioreactors.