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Why does household waste grease need to be recycled?

2024-07-26

Household waste oil, as an inevitable by-product in daily life, its scope widely covers the leftover oil left after cooking dinner, the turbid oil discarded after deep frying food, and all kinds of oil mixed in food residue.
Why does household waste grease need to be recycled?

Household waste oil, as an inevitable by-product in daily life, its scope widely covers the leftover oil left after cooking dinner, the turbid oil discarded after deep frying food, and all kinds of oil mixed in food residue. The potential environmental and health risks of these oils cannot be ignored if they are not properly handled and disposed of after their daily lives.

First of all, when these waste oils and fats without any treatment are directly dumped into the sewer system, they are easy to accumulate in the pipeline and gradually form a hard block due to the characteristics of the oil and fat when cold and easy to solidify. These grease blocks will gradually reduce the effective flow area of the pipeline until it is completely blocked, resulting in poor drainage, which will affect the normal operation of the drainage system of the entire city. This situation is particularly serious in the rainy season or during the peak period of drainage, which may cause urban waterlogging and bring great inconvenience to residents' lives.

What's more serious is that some criminals, in order to make huge profits, will secretly collect these abandoned oils and fats, process them through illegal means, and attempt to repackage them into so-called "edible oil" and enter the market again. This behavior not only violates national laws and regulations, but also poses a direct and serious threat to the public's food safety. Long-term consumption of such illegally processed cooking oil may cause consumers to suffer from health problems such as gastrointestinal dysfunction and food poisoning, and may even increase the risk of serious diseases such as cancer due to the intake of harmful substances.

In addition, the random dumping of household waste grease has caused far-reaching harm to the natural environment. Under the action of rain erosion or natural infiltration, these oils can easily penetrate into the soil and groundwater system, causing pollution to soil structure and water quality. The oil in the soil will destroy the balance of soil microbial community, affect soil fertility and plant growth; and the oil pollution in the water may lead to eutrophication, cause algae proliferation, consume oxygen in the water, and further threaten the survival of aquatic organisms. In the long run, this kind of ecological damage will be difficult to reverse and pose a serious challenge to the sustainable development of human beings and nature.

Therefore, strengthening the management and disposal of household waste oil and promoting the participation of all sectors of society in the recovery and resource utilization of waste oil is not only a necessary move to maintain the smooth operation of urban drainage system and ensure public food safety, but also a long-term plan to protect the ecological environment and promote sustainable development.

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