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The article presents the ecological problems of utilization of spent activated sludge, which is a waste after biological treatment of wastewater and ways of their solution. A literature review devoted to modern methods of recycling and recycling of spent activated sludge is presented. The methods of composting of spent activated sludge, advantages and disadvantages of field composting of spent activated...
Authors in the paper consider such definitions as a psychography, psychographic characteristics and their correlation in classical and digital marketing. The role of psychographic characteristics in human behavior in the process of goods search and ordering in a virtual environment is defined. The authors studied the potential of social networks as the main channel for obtaining information about...
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