The odor generated during the fermentation process of the pig manure organic fertilizer production line is a common problem that must be properly solved. If it occurs, the following measures can be taken to deal with it:
Optimize the fermentation process
- Control the fermentation conditions
Control temperature, humidity, and airflow. Ideal temperatures (50–65°C) help microbes break down manure efficiently, reducing odors. Low temperatures cause incomplete fermentation (leading to smells), while high temperatures can kill beneficial microbes. Keep humidity around 50–60%, and ensure proper ventilation to support aerobic fermentation and minimize anaerobic odor production.
- Add fermentation aids
Use microbial starters containing beneficial strains like Bacillus or yeast. These speed up decomposition and outcompete odor-causing microbes for resources, naturally suppressing smells.
Odor collection and treatment
- Establish a ventilation system
Install an effective ventilation system and use compost turning machines in the fermentation workshop to extract the generated odorous gas in time. The ventilation duct can be connected to the odor treatment equipment.
- Use odor treatment equipment
Biological deodorization equipment is an effective choice. The biological deodorization tower is filled with microbial fillers. When the odorous gas passes through, the microorganisms will decompose the odorous substances in it, such as hydrogen sulfide, ammonia, etc., and convert them into harmless carbon dioxide and water.
Chemical deodorants can also be used as an auxiliary. For example, acidic deodorants can neutralize alkaline ammonia odors, and alkaline deodorants can treat acidic hydrogen sulfide odors.
Through the above measures, the odor in the fermentation process of the pig manure organic fertilizer production line can be effectively treated, which not only ensures a good production environment, but also helps to improve the quality of organic fertilizer.