Tips for Quality Organic Fertilizer Production
In the composting process of organic manure machine, there are many factors affecting the fermentation of organic wastes such as feces, including carbon nitrogen ratio, moisture, particle size and pH value. This paper mainly explains the effect of pH on fecal fermentation and organic waste fermentation. Improper pH value will affect the reproduction, decomposition and survival of fermentation bacteria.
Although scholars in the field of biology have some differences on the appropriate absolute pH value for fecal fermentation, they all agree that the fermentation bacteria are suitable to grow in neutral or alkaline environment. Neutral or alkaline environment is conducive to the reproduction and decomposition of fermentation bacteria. And survive.
When the pH value is too low, it is mainly affected by too much water or too fine materials. At this time, the fermentation of manure and other organic wastes can easily become anaerobic. When it becomes anaerobic, the accumulation of organic acids can reduce the pH value below 4.5, which seriously affects the activity of fermentation bacteria in composting, stops and enters a dormant or dead state.
At this time, we need to use the dung dumper to supply oxygen to the materials. After tipping, the materials are relatively ventilated and have sufficient oxygen content, which can restore the pH environment of feces and other organic wastes to the normal range.
Compost is granulated by drum granulator.
Too high pH value will reduce the activity of many fermentation bacteria and make the decomposition and reproduction of materials impossible.
If the pH value is higher than 11.5, a large number of fermentation bacteria will begin to die, resulting in protein denaturation and enzyme protein inactivation in the fermentation material, thus affecting the fermentation cycle and the quality of organic fertilizer.
The pH value of common fermentation raw materials does not need to be adjusted. The ones that do not need to be adjusted include farm manure, sewage treatment plant sludge, straw, peat, mushroom residue, etc.
The pH value of normal composting fermentation environment is 5 - 9 If the pH value is higher than 9 during fecal fermentation, it needs to be adjusted by adding ferric chloride, alum, strong acid or compost return. If the pH value is lower than 4, it can be adjusted by adding lime and peat ash.
Properly adjusting the pH value in the process of fecal fermentation can affect the fermentation environment, which is conducive to the growth of fermentation bacteria, reproduction and decomposition, shorten the fermentation cycle and improve the quality of fermentation raw material organic fertilizer. NPK fertilizer granulator can produce high-quality fertilizer.
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