1) The document describes a process for converting pig manure into organic fertilizer using fermentation, granulation, drying, and cooling/screening processes. 2) Key steps in the fermentation process include locating a compost pile, maintaining appropriate temperature, moisture, C/N ratio, and pH levels, and using a hydraulic compost turner to aerate the manure. 3) After fermentation, granulation is used to form smooth, round particles which are then dried in a rotary dryer and cooled before screening into a finished fertilizer product.

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Technology for Large Sale Pig Manure Management
Abstract:
Using pig mature fertilizer has a great many benefits, keeping plants healthy and green. When you
know the production technology, you can make good use of the organic fertilizer.
Worldwide animal manure management has become an urgent problem for poultry farms around
the world. Feasibility of large scale pig manure management depends on the local circumstances
(local legislation, fertilizer prices) and processing cost. A further economical aspect is to reduce
the regular high costs of manure management. The most valuable thing we can do for customers is
to reduce the processing cost. Here we make a detailed analysis on methods of turning pig manure
into organic fertilizer, and introduce the most suitable compost turner and fertilizer equipment to

2. achieve this objective.
Organic Matters in Pig Manure
At different stages of growth, judging from weight, excretion of pig is varied accordingly. As for a
pig whose weight is 60kg, feces amount is approximately 2.3kg per day, urine volume about 3.5kg.
pig manure is comprised of 67% -73% water, 18-23% organic matter, 6.54% phosphorus content
of dry matter and 3.61% nitrogen content of dry matter. But the content of potassium and
magnesium is relatively low, being about 1.5%. 80.1% dry matter manure is organic matter, and
easily degradable organic carbon is 27.3%. Hemicellulose and cellulose are lower, fat and lignin
are higher. Nutrient, which can be absorbed by the plant in pig manure, is about 70%. Therefore,
as organic fertilizer, pig manure has high value of utilization.
The whole manure fertilizer production process can be divided into 4 parts: pig manure
fermentation process-pig manure granulation process-pig manure fertilizer drying process-cooling
and screening process
Details of Pig Manure Fermentation Process
1. Locate a spot for the pig manure compost pile
Organic materials, such as sod, grass clippings, leaves, hay, straw, weeds, chopped corncobs,
cornstalks, sawdust, shredded newspaper, wood ashes, hedge clippings and many kinds of plant
refuse from the garden, should be piled in stripes in level ground: the width of the pig manure
compost should be equal to that of the compost turner (hydraulic compost turner being the most
suitable one), height of the pile as high as possible, and the length varies in accordance with the
fermentation space, being 100m or 50m etc. Turning the pig manure compost pile with hydraulic
compost turner every three days at the beginning of the first two weeks, after that turning once a
week.
2. Factors affecting pig manure fermentation
The main factors that affect fermentation are temperature, water, C/N and pH.
In the mass production fermentation, it promotes fermentation to create appropriate environment
for aerobic microorganisms. The following conditions and technical parameters are supposed to

3. control in the whole pig manure fermentation process. The material moisture is 60-70%. Additives
are 5-10%. Fermentation beginning temperature is about 40℃ and high temperature is 60-70℃.
Compounds are deposited in the thickness of 30-40cm. As a matter of fact, it is the aerobic
fermentation process. Microorganisms are growing in the condition. It also accelerates
fermentation. As for fermentation time, ground composting at normal temperatures needs 10-15
days. Moisture of the product is about 20%. It is key phase for pig manure fermentation process.
3. Function of Hydraulic Compost Turner
Our hydraulic compost turner helps to shorten the whole pig manure fermentation time. Organic
matters are in continuous aerobic fermentation with the help of the compost turner. Pig manure
compost realized an automatic and intelligent control. Pig mature fertilizer is in short fermentation
period and low energy consumption. In addition, the quality of product is steady. See more at
working principles of hydraulic compost turner.
Pig Manure Granulation Process
New organic fertilizer granulation machine is widely used in organic waste granulation, such as
livestock rearing, brewing, sugar manufacturing, paper making and cigarette making etc. This
fertilizer granulation machine uses a template aperture to control the particle size. The particles are
smooth, round, evenly grained, in high strength and excellent mobility, Particle formation rate is
95%. The machine is characterized by beautiful appearance, simple construction, easy operation,
small volume and light weight. This fertilizer granulator is most suitable for companies that
produce organic fertilizer.
Pig Manure Drying Process
Although most of the material after granulation has been formed, grains moisture and intensity are
substandard. The granules need to be dried after granulating. Rotary dryer is a rotary cylinder that
is full of copy board inside. With the action of copy board, the material is fully raised and
exchanged with hot air generated by the cowper stove. The temperature of material is increased.
The temperature and moisture vapor partial pressure difference would quickly outward diffuse and
the water is taken away by the wind, which makes material dry.
Pig Manure Cooling and Screening Process

4. The drying material is transported to the cooling machines by belt conveyor. Rotary cooler is a
rotary cylinder that is full of copy board inside. With the help of lifting board, granulated material
is raised and exchanged with the cold air in suction barre. It needs to be cooled down to room
temperature, which further improves particle strength and reduces the moisture. After cooling,
there exits powdery material. With a screening machine, all the fines and large particles are
screened out. With the help of reverting belt machine, fines are mixed with the raw material in the
mixer. Large particles are shattered, those particles and fines are sent to blender through the same
belt. Thus it forms a complete production cycle, quasi-finished products are entering to the coating
process. See more details at: 50,000 tons/year organic fertilizer production line.
Our pig manure fertilizer system is ecologically and environmentally safe, diverse. It suits to not o
nly pig manure management, but to solve other waste management problems including animal was
te (such as pig manures), municipal and industrial waste water treatment facilities that suffer from
an accumulation of sludge or solids (free of heavy metals), and food processing facilities that are n
ot capable of meeting government requirements for waste management.
Usage of Pig Manure Fertilizer to Plants
1. It is a good choice to use pig manure fertilizer for gardens. It helps store moisture and provides
nutrients for plants growth.
2. Many crops need the organic fertilizer. The fertilizer can increase pest and disease resistance of
plants.
3. Pig manure can be a good fertilizer for plants. However, due to the risk of pathogens that cause
food borne illness in humans, experts do not recommend the use of pig manure to fertilize
vegetable gardens
Benefits of Pig Manure Fertilizer to Plants
1. Manure is rich in nitrogen, phosphorus, potassium and organic matter, which is good raw
material for organic fertilizer.

5. 2. There is an organism and enzymes in pig mature fertilizer. It can enhance the biological activity
and enzymatic activity of land, increase nutrients in soil land improve soil pH value. In this way, it
is suitable for plants.
3. Pig mature fertilizer can reduce environmental pollution. It is harmless for human and animals,
which is green and environmental friendly fertilizer.
4. Beneficial bacteria generate a large number of metabolites in the process of growth and
reproduction, which promotes the conversion and decomposition of organic matter. It can provide
a variety of nutrients and irritating substances for crops directly or indirectly, which is the
promotion and regulation for plant growth.