At present, China's sewage treatment plant processes 210.31 billion tons of sewage per year, but the annual sludge production is also 9 million tons, and increasing at a rate of more than 10% per year. How to treat sludge more effectively has become a major problem. If the sludge can be used as a renewable resource, it not only solves the problem of sludge waste, but also fundamentally solves the secondary pollution caused by improper use of sludge containing heavy metals, pathogenic bacteria and toxic organic matter.
The treatment of sludge generally includes landfill, fertilizer, power generation, and heating. Landfilling is the deep landfill of some inseparable and unusable materials, which allows the natural world to decompose through long-term physical and chemical treatment. The fertilizer is used to make organic fertilizers in the sludge to be used as agricultural fertilizers; The heat is fermented by the sludge during heating, and the heat and biogas are generated in the fermentation. Among these treatment methods, fertilizer production is the most economical and effective way to use it. The Jinbao fertilizer fermenting agent can make the sludge into bio-organic fertilizer, which has the advantages of rapid fermentation, good fermentation, high-temperature fermentation, low-temperature fermentation, greatly shortening production time, reducing cost, etc., and is widely used as long as the operation is performed. The sludge can be fermented into organic fertilizer in a few days.
The method is: adding an appropriate amount of pulverized straw, sawdust, mushroom residue, peanut shell or rice hull to the sludge, and then adding an appropriate amount of gold baby fertilizer starter (1 kg of gold baby fertilizer starter can ferment 4 The water content of the sludge of about ton is about 60 to 65%. In the process of fermentation, pay attention to tipping over. Generally, the material can be deodorized after 7 to 10 days. The fermentation is completed and can be used or sold with confidence. If excessive amounts of sawdust and wood chips are added, the fermentation time should be extended until it is fully decomposed.
The sludge can be harmlessly treated with Jinbao fertilizer starter, which can reduce odor, reduce water, kill pathogens and parasites (eggs), obtain decomposed sludge compost, dry and crush sludge compost, and add at the same time The right amount of chemical fertilizers and beneficial microorganisms can be made into organic compound fertilizers and bio-type organic compound fertilizers.
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