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You are here: Home1 / Fertilizer equipment2 / News3 / Municipal sludge fermentation organic fertilizer

Municipal sludge fermentation organic fertilizer

Table of Contents

  • Urban sludge fermentation organic fertilizer process:
    • Mixing section:
    • Fermentation stage:
    • Screening section:
    • Deodorizing system:

The municipal sludge is sterilized by aerobic fermentation by using the organic fertilizer fermentation technology, and the sludge is made into organic fertilizer. Such aerobic fermentation processes are a mixing system, a fermentation system, a screening system, and are equipped with a blast system and a deodorization system. To achieve such a fermentation purpose, the required organic fertilizer equipment includes a pile turning machine, a stirring mixer, a screening machine, and the like.

Municipal sludge fermentation organic fertilizer (5)

Municipal sludge fermentation organic fertilizer (5)

Urban sludge fermentation organic fertilizer process:

Mixing section:

The mixing link of urban sludge fermentation organic fertilizer: mainly mix the sludge with a moisture content of 80%, the added auxiliary materials and a part of the decomposed clinker that has been dried after stacking, and mix it to a state of loose structure, which can easily make the air drum Enter for aeration. The organic fertilizer equipment used in the mixing process includes organic fertilizer mixers: horizontal mixers or disc mixers.

Municipal sludge fermentation organic fertilizer (2)

Municipal sludge fermentation organic fertilizer (2)

Fermentation stage:

Fermentation link of sludge fermentation organic fertilizer: the mixed materials are sent to the fermentation bin through the conveying equipment, and the bottom of the fermentation bin is equipped with an aeration system. , and also take away the moisture in the material. The organic fertilizer equipment used in the fermentation process includes trough fermentation turner or turner.
In the fermentation process, in addition to aeration, there is also a very important operation link, which is to turn the material through a turning machine or a heap turning machine, so that the upper and lower and middle edges can be uniform so that the fermentation process can be carried out faster. The fermentation process is relatively thorough.

The dynamic-static processing method is adopted. In the initial stage of fermentation, when the material has high humidity, heat accumulation, and continuous high temperature, the pile body is kept in a static state, and a blower is used to supply oxygen to fully ensure the high-temperature state of the pile body, accelerate the harmlessness of materials, and avoid the emission of odorous gases. After the pile body is maintained for a sufficient high-temperature period, in order to improve the moisture distribution of the pile body, the pile body is evenly turned to promote the late decomposing of the material, accelerate the removal of water, and ensure that the entire pile material is fully fermented and decomposed.

Municipal sludge fermentation organic fertilizer (3)

Municipal sludge fermentation organic fertilizer (3)

Screening section:

Screening link of sludge fermentation organic fertilizer: In the sludge aerobic fermentation project currently designed in my country, the fermentation period is generally more than 20 days, the structure of the fermented material is loose and odorless, and the moisture can generally be reduced to 45 % below, and then sent to the screening system for screening; if no further processing is required, no screening can be performed, and the land can be used directly. The equipment used in the screening of sludge fermentation organic fertilizer: organic fertilizer screening machine.

Drum screening machine (3)

Drum screening machine (3)

Deodorizing system:

Deodorization system of sludge fermentation organic fertilizer: some odors will be generated during the blast aeration and turning and throwing process. These odors will be sent to the biological filter through the collection system for treatment and will be discharged after the treatment reaches the standard.

January 10, 2022/0 Comments/by Tianci Heavy
Tags: Fertilizer production
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