Bolong fermentation compost tank is a closed design. The odor of feces can be purified in the tank. Livestock and poultry manure is a major waste in animal husbandry. Livestock and poultry manure contains many nutrients for crop growth. Animal husbandary waste has become an important source of global environmental pollution. By choosing Bolong high-temperature aerobic fermentation tanks. You can process large amounts of organic waste.