Haku
Viitteet 81-90 / 338
Sustainable treatment of municipal sewage sludge
(2022)
The main purpose of this thesis was to realize sustainable utilization of municipal sewage sludge. Previous sludge disposal methods were introduced, including landfill, incineration, ocean dumping and agricultural land ...
Black liquor in pulp mill and its treatment
(2021)
Pulping process is an important part of papermaking. At present, the main steps of pulping production include wood handling, cooking, washing, screening, bleaching, drying and finishing. During the pulping process, black ...
Wet waste recycling
(2021)
A large amount of garbage is generated in the daily life of human beings, and if it is not treated and used, it will cause great harm to the human living environment and human health. Food waste (wet waste) accounts for a ...
The research on whether hydrogen fuel can replace ordinary fuel in the future
(2021)
The aim of this thesis is to review hydrogen energy and hydrogen fuel, and to describe the prospect of hydrogen as energy carrier. This thesis,firstly, introduces the use of hydrogen as energy carrier, hydrogen energy ...
The transition of fossil fuel as a source of energy to renewable energy
(2022)
Thousands of years ago, fossil fuels were the main source of energy in the world. These fossils include coal, oil, and gas at the time of discovery, and the exploitation of the type of fossil is different for each country. ...
The status, development and application of natural gas
(2021)
As one of the modern clean energy, the importance of natural gas is gradually discovered. Natural gas is the general term of the mixture of hydrocarbons existing in the underground rock reservoir. Natural gas is mainly ...
Recycling of spent lithium-ion batteries in industrial scale
(2022)
Electric vehicles (EVs) will inevitably become the main mean of transportation in the near future, replacing fossil fuel- powered vehicles at the present time. Lithium-ion battery (LiBs) is an indispensable component of ...
Biodiesel instead of fossil fuels in diesel vehicles
(2021)
In today's society, although fossil fuels provide energy and materials for mankind, the use of fossil fuels has brought serious environmental problems. Fossil fuels are non-renewable fuels, and the stock in the Earth crust ...
Biodiesel preparation by industrial transesterification and its impact on the environment
(2022)
At present, the dual problems caused by the shortage of non-renewable resources of fossil fuels and the negative impact of fossil fuels on the ecological environment are becoming increasingly serious, making the development ...
A new bacterium intriguing the scientific world by its particularities: Halomomas Titanicae : From its properties to the potential applications to solve some environmental issues
(2021)
The aim of this thesis was to present a new discovery in the scientific world which is the bacterium Halomonas Titanicae. Beyond being an incredible microorganism resisting to extremes conditions, it represents a hope for ...









