What is Organic Waste?
“Organic” in Chemistry field: The compound
consists of carbon, hydrogen and oxygen etc.
“Organic” in Biology and Environment field: The
material comes from the once living units, such as
animals, plants and microorganisms.
Organic wastes can refer to the residue of plants,
animal and microbes, or waste materials naturally
generated from all living things.
The category and source of organic waste
The organic waste can be divided into three categories,
which are "Industrial organic waste", "Agriculture
organic waste" and "household organic waste". The
household part is approximately 10%, the industrial and
the agriculture accounts for 40% and 50% respectively.
However, the ratio varies according to different
Source of Organic Waste
economic status in each
country. An agriculture country
usually gets more volume of
agriculture organic waste
compared with the other two.
On the other hand, a well-
developed industrial country,
whose industrial organic wastes
is much higher.
organic wastes, the
volume is usually
proportional to its
population. Each person
produces the organic
waste directly is
approximately 0.5 to 1
kilogram every day.
Therefore, the volume
can be almost 500 tons
each day per million
The organic waste of agriculture: farming,
forestry, fishing and gardening, fruits and vegetables,
mushroom, farm, forest, livestock breeding farm,
fishery cultivation factory, pig and cow stock farm etc.
The organic wastes of household: food waste from
kitchen, institution, army, school, and prison etc.
The organic wastes of industry: Food processing
manufacturing industry, brewery, slaughter house,
restaurant, market, hospital, hotel, vegetative raw
material for medicine, papermaking, sludge, and
Treatment of Organic Waste
Advantage & Disadvantage Analysis
Treatment Method: Fermentation
Treatment Time: 3-6 months.
End product: Soil Conditioner.
Requirement: Huge site, constantly re-pile
(Manpower or Machine).
Disadvantages: Bad smell, space & time, carbon
Treatment Method: No treatment
Treatment Time: Several years ~ decades.
End Product: None (will generate wastewater and
Requirements: Space, waterproof layers, air
Disadvantages: Air pollution, Large Area, under
earth water pollution, Fire explosion.
Prohibited to landfill without treatment in EU
Treatment Method: Burn with
Treatment Time: several hours.
End Product: None (will generate
high toxic ash).
Requirements: Air pollution
monitoring about 20~30% of
Ashes (treatment required).
construction cost, air pollution,
CO2 emission, waste of organic
Salt in organic waste will
generate Dioxin after burning.
Treatment Method: Microbes decomposition.
Treatment Time: 24~72 Hours + 1~3 month
storage before use.
End product: Months of storage required before use.
Requirements: Storage area, cannot treat big size
and high salt & oil content wastes.
Disadvantages: Bad smell, space, energy
Treatment Method: Anaerobic bacteria decompose.
Treatment Time: 7~14 Days.
End product: Methane and sludge (treatment required).
Requirement: Highly sealed tanks, large area.
Disadvantages: high construction and maintenance
cost, large area for facilities.
Treatment Method: Enzymes reaction.
Treatment Time: 1~3 hours.
End product: High quality organic fertilizer.
Requirement: Enzymes, equipments.
Complete Use of
The influence of organic waste
The organic wastes are the major raw material of
organic fertilizer. When the soil is deficient in organic
materials, the fertility will be degraded and the health
of crops will surely be affected. Thus, humans must use
more chemical fertilizers and pesticides to cultivate.
It is similar that we will have to take medicines when
our body is short of nutrition and susceptible to illness.
Excessive dose of chemical fertilizers and pesticides
may remain on foods. Long-term consumption of these
chemical toxins will accumulate in our body and cause
The natural cycle of organic matter
Above is the ecological cycle chain of nature
Please do not ignore the value of organic matter