Biomass resources refer to materials, energy and other resources composed of biomass. These resources mainly come from plants and microorganisms, including wood, bamboo, agricultural waste, energy crops, animal manure, municipal solid waste, etc. The discussion is as follows:
1. Wood and bamboo: Wood and bamboo are traditional biomass resources and are widely used in construction, furniture, tools and other fields. The sources of these resources are mainly forests and bamboo forests, of which wood mainly comes from trees and bamboo mainly comes from bamboo forests.
2. Crop Waste: Crop waste is the residue generated after harvest, such as straw, wheat straw, corn straw, etc. These wastes can be used as fuel, animal feed,fertilizers, etc.
3. Energy Crops: Energy crops refer to crops used to produce biomass energy, such as rapeseed, bagasse, sweet sorghum, etc. These crops can be used to produce biodiesel, biogas, etc.
4. Animal Manure: Animal manure is a high-quality biomass resource that can be used as fertilizer or fuel. For example, cow dung can be used to produce biogas or as organic fertilizer.
5. Municipal Solid Waste: Municipal solid waste refers to various wastes generated in urban life, including household waste, kitchen waste, etc. This waste can be transformed into organic fertilizer or biogas through methods such as composting or fermentation.
Advantages of biomass energy
1. Renewability: Biomass energy is extracted from plants andmicroorganisms, and these resources are renewable and can be continually supplemented during the growth process. Compared to fossil energy, biomass energy is produced faster and more sustainably.
2. Environmental protection: The combustion products of biomass energy are mainly carbon dioxide and water and will not produce harmful substances such as sulfur dioxide and nitrogen oxides. At the same time, the carbon dioxide emissions and absorption of biomass energy are basically the same, making it low-carbon and environmentally friendly energy.
3. Scalability: Biomass energy can come from various organic wastes and crops, so its sources are very wide. These resources can be widely used at home and abroad and have good development prospects.
There is nitrogen (N2), oxygen (O2), argon (Ar), carbon dioxide (CO2) and d other gases in the air.
1. Nitrogen (N2): Makes up most of the air, about 78%.
2. Oxygen (O2): Comprising approximately 21% of air, it is a gas necessary to sustain life and used for breathing.
3. Argon (Ar): Approximately 0.93% of air, an inert gas with high stability.
4. Carbon dioxide (CO2): representing approximately 0.04% of the air, it is a key element in plant photosynthesis and plays a role in the greenhouse effect in the atmosphere.
5. Helium (He): RepresentedA very small proportion of air, lighter and often used in inflatable balloons and scientific experiments.
6. In addition to the above main gas components, there are also trace gases in the air, including hydrogen (H2), chlorine (Cl2), nitrogen oxides (NOx), ozone (O3 ), etc. Additionally, suspended particles and water vapor may also be present in the air. It is important to note that the composition of the air can vary slightly depending on factors such as location, altitude, pollution, etc.
Composition of air
1. Air refers to the gas mixture present in the Earth's atmosphere. It contains a variety of gas components, the main components of which are nitrogen, oxygen and carbon dioxide. In addition to these main components, air also contains traces of gases such as water vapor, argon and hydrogen.
2. Nitrogen (N2) is the largest component of air, making up about 78% of the volume. It plays a diluting and stabilizing role in the atmosphere. Oxygen (O2) is a gas necessary for living organisms and represents approximately 21% of the volume. It is necessary during the respiratory process and is used to support thevital activities. Carbon dioxide (CO2) is an important greenhouse gas, accounting for approximately 0.04% by volume. It has a significant impact on the Earth's climate and ecosystems.
3. In addition to these main components, air also contains a small amount of argon (Ar), making up about 0.93% of the volume. Additionally, air also contains traces of water vapor (the gaseous form of water) and other gases, such as methane (CH4), carbon monoxide (CO), hydrogen (H2 ), etc.