Biological organic fertilizer preparation technology

Abstract

The invention belongs to the technical field of fertilizer, and specifically relates to a biological organic fertilizer preparation technology. A stirring machine adopted by the biological organic fertilizer preparation technology comprises a shell, a motor, a rotating shaft, an anti-sludge cover, a stirring module, a scraping module, a granule removing module and a granule containing box, whereinthe shell is in a round barrel shape; a feed inlet is formed in the upper part of the shell; the motor is arranged at the bottom part of the shell; the rotating shaft and the motor are fixedly arranged; the anti-sludge cover is arranged on the rotating shaft through a bearing; the stirring module is arranged on the rotating shaft; the scraping module is arranged on the stirring module; the granule removing module is arranged on the rotating shaft; the granule containing box is arranged under the shell; the granule containing box is used for containing removed impurities and granules. The biological organic fertilizer preparation technology disclosed by the invention is mainly utilizes urban sludge as a raw material and has a function of waste utilization, not only the urban sludge treatment problem is solved, but also waste is turned into wealth, the sludge is prepared into organic fertilizer, and agricultural fertilization is provided.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, in particular to a preparation process of bio-organic fertilizers. Background technique [0002] In recent years, with the operation of sewage treatment plants in cities, especially some large and medium-sized sewage treatment plants, the sludge production has also increased rapidly while the sewage treatment rate in my country has continued to increase. How to treat and dispose of these sewage Mud has always been a matter of concern from all sides. Studies have shown that municipal sludge contains a large amount of organic matter, nitrogen, phosphorus and other nutrients needed for plant growth. Most of the municipal sludge has been directly applied to the planting site, but if it is directly applied to the planting site without necessary treatment , not only cannot meet the needs of plants for nutrients, but the effectiveness of the fertilizer is low. If it is applied to the field without t...

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Problems solved by technology

Studies have shown that municipal sludge contains a large amount of organic matter, nitrogen, phosphorus and other nutrients needed for plant growth. Most of the municipal sludge has been directly applied to the planting site, but if it is directly applied to the planting site without necessary treatment , not only cannot meet the needs of plants for nutrients, but the effectiveness of the fertilizer is low. If it is applied to the field without the decomposing action of microorganisms, it will continue to decompose and generate heat, which may cause seedlings to burn. The microorganisms in the sludge may compete with crops for nutrients

In addition, the sludge contains a lot of impurities, such as small stones, plastics, etc., which will inevitably affect the growth of plants and the structure of the soil after entering the planting site.

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