Sludge is a solid precipitated material produced by water and sewage treatment processes. As the total amount of treated water in the wastewater treatment plant and the degree of treatment will continue to expand and increase, the amount of sludge produced will also increase. The cost of investment and operation of sludge treatment and disposal is high, and improper disposal will cause secondary pollution. At present, the mature sludge stabilization processes commonly used at home and abroad include aerobic fermentation, anaerobic digestion, heat treatment, heating and drying, and alkali stabilization; commonly used sludge disposal is land use, incineration, sanitary landfill, composting, and seawater injection. Building materials, etc. In fact, a kind of aerobic fermentation method, Gemspo Fertilizer Fermenting Agent (click here for details) can ferment sludge into high-quality organic fertilizer. The specific operation method is as follows:
1, material ratio.1 kg of Kinpo fertilizer can ferment about 4 tons of sludge + cow dung. It is necessary to add about 30-50% of cow dung, straw powder, mushroom dregs, peanut shell powder, or rice husks, sawdust and other organic materials in order to adjust air permeability. Where rice husks and sawdust are added, the fermentation time should be prolonged because of its high cellulosic lignin. Dilution of bacteria: Add 5-10 kilograms of rice bran (or substitutes such as bran and corn flour) per kilogram of starter, mix and dilute evenly, and then spread it evenly into the material pile. The use effect will be better.
2, build reactor requirements.After preparing the materials, build a heap with bacteria. The stack height and volume should not be too short and too small. Requirements: pile height 1.5-2 meters, width 2 meters, length 2-4 meters
3, water requirements.The moisture of the fermentation material should be controlled at 60 to 65%. Judgment of moisture: The hand grabs a handful of material, fingers see the watermark but not drip, landing is appropriate. Slow water fermentation, poor ventilation, and water can also lead to "corrupt bacteria" work and produce odors.
4, mix and ventilate.The Golden Baby Ferment Fermentation Agent requires good aerobic fermentation, so it should increase oxygen supply measures, so that mix well, diligent turning, ventilation is appropriate. Otherwise it will cause anaerobic fermentation and produce odor, affecting the effect.
5, temperature requirements.The starting temperature should be better than 15 °C (four seasons can be operated, not affected by the season, winter as much as possible in the indoor or greenhouse fermentation), fermentation temperature control at 70-75 °C is appropriate.
6, the completion of fermentation.In the first 2-3 days, the temperature can reach 65°C or more, and it will fall 2 or 3 times at this high temperature. Usually, the fermentation can be completed within one week. The material is dark brown and the temperature begins to fall to room temperature, indicating that the fermentation is completed. If sawdust, sawdust, and rice husks are excessive, the fermentation time should be extended until it is fully decomposed.
The organic fertilizer fermented with sludge has good fertilizer effect, is safe and convenient to use, can promote disease resistance and long-term growth, and can also be used to fertilize fertility. It also sounds like a dirty and smelly sludge can also turn into a treasure, and the waste can be reused. Sludge direct land use is the development trend of sludge treatment and disposal. Tips: You should disable the use of materials weighing less than 500 kilograms or less. For details, please contact: Beijing Huaxia Kangyuan Technology Co., Ltd. Telephone Toll Free Hotline
Recommended reading:
1. How do litters ferment organic fertilizers?
2. How to choose organic fertilizer starter?
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