What are the key factors for successful composting with a compost turning machine?
A compost turning machine is an essential piece of equipment in the composting process, and there are several key factors that must be taken into consideration in order to achieve successful composting with a compost turning machine.
- Material ratio
A suitable carbon-nitrogen ratio is an important prerequisite for successful composting. For example, the proportion of common composting materials such as straw and livestock and poultry manure should be appropriate. If the carbon-nitrogen ratio is too high, the composting process will become slow and the microbial activity will not be vigorous. On the contrary, excessive nitrogen content may produce an unpleasant odor and easily cause nitrogen loss. The appropriate C/N for microbial decomposition of organic matter is generally around 25:1.
- Humidity control
During the composting process with a compost turning machine, the humidity of the material should be kept within a certain range. Generally speaking, the humidity should be between 50% and 60%. Materials that are too dry are difficult to be decomposed by microorganisms. Excessive humidity will make the material less breathable, leading to anaerobic fermentation, producing unpleasant odors, and reducing the quality of the compost.
- Material size
The size of the material to be composted should be as small as possible, which can increase the surface area and promote microbial activity, but it still needs to ensure air permeability.
- Turning frequency
The compost turning machine ensures the ventilation of the material by turning the material. A reasonable turning frequency allows oxygen to fully enter the material to meet the needs of aerobic microorganisms. If the turning frequency is too low, anoxic areas will appear inside the material, affecting the normal metabolism of microorganisms. Turning the compost too frequently may destroy the good living environment that has been formed by microorganisms and increase energy consumption.
- Temperature control
During the composting process, the temperature changes with the activity of microorganisms. The appropriate temperature range can promote the efficient decomposition of materials by microorganisms. For example, the temperature in the initial stage of composting should gradually rise to about 50-60 degrees Celsius to kill harmful bacteria and insect eggs. Then maintain the appropriate temperature at different stages to ensure the smooth progress of composting.
- pH control
The pH value affects the growth of microorganisms, so it is necessary to ensure that the pH value of the compost is within a reasonable range. The pH value of the compost mixture is generally controlled between 6 and 9.
In short, only by fully considering and optimizing these key factors can efficient and high-quality composting be achieved with the help of a compost turning machine.