Food waste (leftovers, vegetable leaves, peels, etc.) disposal points
family
/
社区
和 Professional centralized processing
两大路径，核心是 Source reduction, classification, resource utilization
。
Family
/
日常处理（简单可操作）
1.分类投放（最基础、必做）
•
Drain
: Pour out the soup, drain it and throw it away to reduce odor and leakage
•
Correct classification
￮
Food waste: leftovers, vegetable leaves, peels, eggshells, tea grounds, coffee grounds, small bones, fish bones
￮
Do not lose: big bones, durian shell, zongye, shells, paper towels, plastic bags, toothpicks
•
ad
Invest in the community
Green food waste bucket
, unified collection and delivery of sanitation
2.家用厨余垃圾处理器（厨房水槽下）
•
Smash leftovers, peels, etc. directly into the sewer
•
Advantages: instant reduction, no odor, trash can saving
•
Attention:
Do not hit hard bones, crude fibers, hot oil, shells
, easy to block pipelines
3.家庭堆肥（适合养花种菜）
•
material
: Compost bucket
/
旧箱、干树叶 / 木屑 / 碎纸（碳源）、厨余（蔬菜果皮）
•
practice
a.
bottom floor
5–8cm
干树叶
b.
A layer of food waste (
≤5cm
）
+
A layer of dry ingredients (
“
Sandwich
”
）
c.
Seal and turn it every few days to keep it moist and free of water accumulation.
d.
1–3
个月腐熟成有机肥
•
pit avoidance
: No meat, oil, dairy products, salty and spicy (insect odor)
•
indoor version
: Vermicompost bin (odorless, vermicompost directly grows flowers)
4.减少浪费（源头最好处理）
•
Cook on demand, seal and refrigerate leftovers, and eat them as soon as possible
•
Peel bubble enzyme, coffee grounds sun-dried to remove flavor, eggshell crushed to grow flowers
Second, the professional treatment plant process (urban mainstream)
1.
preprocessing
￮
Broken bags, sorting: remove impurities such as plastics, metals, paper towels, etc
￮
Crushing, press dehydration: solid-liquid-oil separation
￮
Oil purification
biodiesel
￮
wastewater
Sewage treatment standard discharge
2.
Core processing (mainstream)
3种）
•
Anaerobic fermentation (most commonly used)
￮
Closed tank anaerobic decomposition
Production of biogas (methane)
￮
Biogas
Power generation, heating, and purification of natural gas
￮
Biogas residue
/
沼液 → Organic fertilizer
•
aerobic composting
￮
ventilation
+
微生物 → 15–30 天成腐殖土 / 有机肥
•
Black soldier fly conversion
￮
Larvae eat food waste
The insect body is used as high-protein feed and insect manure organic fertilizer
3.
residue
￮
A small amount of unusable items
Incineration power generation
(Decrease
90%+
）
￮
Basically not directly landfilled
III. One-sentence summary
•
family
：
Drain and sort
/
装 Garbage disposal
/
自己 composting
•
city
：
centralized collection and delivery
preprocessing
anaerobic
/
aerobic
/
Insect treatment
Biogas power generation
+
Organic fertilizer
+
biodiesel
