Associate Professor Alina Steblyanskya
School of Economics and Management, Harbin Engineering University
Research Area: Complex economics, energy efficiency, environmental economics, sustainable financial growth and green environmental finance
Speech Title: GDP growth under environmental constraints: the case of Russia
The paper’s theoretical significance lies in the complex conceptual view concerning GDP growth under environmental restrictions. In particular, the authors analyze a set of indicators reflecting the state and trends of the changes in Russia’s environmental pollutants (carbon dioxide emission, wastewater, production and consumption wastes) and their interdependencies with economic development, which predetermine long-term social, environmental and energy consequences. The authors develop an algorithm for substantiating the environmental constraints on Russian GDP growth in the period of 2000-2018. It verified the interrelationship links among every type of pollutant and the GDP per capita (GDPPC), energy resources and the volume of industrial production indicators in Russia. According to GDPPC growth, a forecast of environmental restrictions is developed under 10%-40% scenarios and shows the inevitability of Russia’s ecological prevention plan. The research results proved that environmental restrictions have a substantial effect on GDP and could limit economic growth.
Associate Professor YanlingYu
School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Research Area: Bioenergy，biochar preparation，heavy metal/antibiotics removal from waste water
Speech Title: Heat generation and recovery from aerobic fermentation of corn stover
Aerobic fermentation of biomass can both generate heat energy and organic fertilizer. Recycling the fermentation heat energy can replace part of coal and other fossil energy used in heating fields, and solve the problems of biomass waste pollution and fossil energy pollution. At present, the research of aerobic fermentation of agricultural solid waste usually focus on how to improve the quality of organic fertilizer, but few studies on heat generation and heat recovery. The aim of this study was to concern the heat recovery from aerobic fermentation of corn stover. We improved the heat generation in the process of aerobic fermentation by optimizing the functional microorganism, fermentation additives, particle size of corn stover and other technological conditions. Based on the laboratory scale results, a fermentation heat generation system of 60m3 with corn stover (10 ton) as ”fuels” was built for greenhouse heating in winter in Heilongjiang Province, China. The heat recovery system consists of heat exchange tubes embedded in the fermentation reactor. During the winter heat recovery test, the reactor temperature was as high as 70 ℃ and the fermentation run stably for 4 months even lowest outdoor temperature was -34℃. Used heat exchangers and radiators can increase soil temperature by 3℃~4℃. The aerobic fermentation heat has a great potential as a substitute of clean, low-carbon and local energy for rural residents and facility agriculture.
Keywords: Heat recovery, Aerobic fermentation, Agricultural solid waste, Corn stover