Process flow of organic fertilizer treatment for kitchen waste

（1) The on duty personnel push the kitchen waste bin to the equipment location;

（2) A lift with "weighing and lifting" function automatically pours kitchen waste into the equipment;

（3) After being "crushed and dehydrated", kitchen waste is transported to the fermentation bin through an automatic conveying channel as solid residue;

（4) After 8-24 hours of fermentation treatment, the solid residue is converted into organic fertilizer and discharged from the discharge outlet;

（5) The gas generated during the fermentation process is discharged in compliance with standards after passing through a deodorization system;

（6) The oil and fat separated from oil-water should be regularly recycled by qualified units.

Structural diagram of integrated kitchen waste equipment

The whole machine is composed ofComposed of three parts: "pre-processing system", "fermentation system", and "deodorization system"

Kitchen waste pretreatment system

Preprocessing system operation steps

1)The on duty personnel will hang the standard garbage bin filled with organic waste atOn the "elevator", the compartment cover automatically opens;

2)The "hoist" pours the material into the shredder (the size of the shredded material is 3)～20mm）；

3)The shredded material passes throughThe back pressure press is used for solid-liquid separation;

4)After solid-liquid separation, the slag is passed throughThe 'conveying system' enters the 'fermentation system'.

Kitchen waste fermentation system

After pre-treatment, the residue is sent to the fermentation system for ultra-high temperature aerobic fermentation reaction;

2．Enter the subsequent fermentation chamber for secondary fermentation in sequence, and the system ensures that the microorganisms are at the most suitable material temperatureRapid growth and reproduction at around 80 degrees Celsius;

3．In the fermentation chamberAfter 24 hours of fermentation and maturation, the organic fertilizer is automatically discharged in the form of granular powder.

4．The bio organic compost products produced by it meet industry standards（NY 884—2012）， Appearance (sensory): Powder products should be loose and free of unpleasant odors; Granular products should have no obvious mechanical impurities, uniform size, and no spoilage odor. Effective viable bacterial count (cfu) ≥ 20 million/g, organic matter (on a dry basis) ≥ 25.0%, moisture ≤ 30.0%, pH value 5.5-8.5, fecal coliform count ≤ 100/g (mL), and roundworm egg mortality rate ≥ 95%. The content indicators of As, Cd, Pb, Cr, and Hg in bio organic fertilizer products should comply with the provisions of 4.2.3 in NY/T 798-2004. All other indicators comply with the regulations of NY 884-2012.

Fermentation deodorization system for kitchen waste

Operation steps of deodorization system

(1)Odorous gases are input into the deodorization system through exhaust equipment;

(2)Efficiently reducing dust in gases containing fine particles through circulating water;

(3)pass throughThe high-energy UV ultraviolet beam of the "Atomic Infinite Lamp" decomposes odorous gases;

(4)Degradation and conversion of odorous gases into low molecular weight compounds, water, and carbon dioxide;

(5)Then, it is discharged outdoors through the exhaust duct to meet the standard;

(6)The odor emissions around the site shall comply with the odor pollutant emission standardsClass II standard in GB14554-93.