Investigation report on white pollution, current status of white pollution

Pollution Status:

According to the survey,3% of Beijing's domestic waste is waste plastic packaging, with a total of about 140,000 tons per year7% of Shanghai's domestic waste is waste plastic packaging, with a total annual volume of about 190,000 tonsTianjin also has more than 100,000 tons of waste plastic packaging every year. Every year, Beijing discards about 2.3 billion plastic bags, about 100 million disposable plastic tableware, and about 6.75 million square meters of waste agricultural film in the environment.

People jokingly called it "the suburbs are white". As a new type of material, plastic products have the advantages of light weight, waterproof, durable, mature production technology and low cost, and are widely used all over the world and are increasing year by year. The growth rate of plastic packaging materials in the world market is higher than that of other packaging materials, and the average annual growth rate of plastic packaging materials in 1990-1995 is.

The social hazards of white pollution:

With the acceleration of people's life rhythm, social life is developing towards convenience and hygiene. In order to meet this demand, disposable styrofoam lunch boxes, plastic bags, chopsticks, water cups, etc. have begun to frequently enter people's daily lives. The emergence of these easy-to-use and low-cost packaging materials has brought a lot of convenience to people's lives.

But on the other hand, these packaging materials are often discarded after use, resulting in"White pollution";It forms an environmental hazard and becomes a great environmental problem.

White pollution mainly includes plastic bags, plastic packaging, disposable polypropylene fast food boxes, plastic tableware, cups and plates, electrical stuffing foam stuffing, plastic beverage bottles, yogurt cups, ice cream skins, etc.

In the face of the increasingly serious problem of white pollution, people hope to find a plastic substitute that can replace the current plastic performance, and does not cause white pollution, degradable plastic came into being, this new functional plastic, which is characterized by a certain service life after being discarded, under specific environmental conditions, due to its chemical structure changes significantly, causing some performance loss and appearance changes and degradation, harmless or less harmful to the natural environment.

For example, starch filled plastic, first of all, the starch contained in it is quickly decomposed by the amylase secreted by the microorganisms in the soil in a short period of time and forms a void, resulting in the decline of the mechanical properties of the film, and at the same time, the self-oxidizer added in the formula reacts with the metal salts in the soil to form peroxide, so that the chain of polyethylene is broken and degraded into small fragments that are easily swallowed by microorganisms, which are absorbed by the natural environment, and at the same time play a role in improving soil quality.

The main white pollution is food packaging, styrofoam filled packaging, fast food boxes, agricultural mulch films, etc. White pollution is a unique environmental pollution in China's cities, a large number of discarded plastic products can be seen everywhere in various public places, they come from nature, made by human beings, and are not easy to be absorbed by nature when they are ultimately attributed to nature, thus affecting the ecological environment of nature.

From the perspective of resource conservation, because plastic products are mainly facing depleted petroleum resources, they should be as much as possible, but because the production cost of re-production at this stage is much higher than the direct production cost, it is difficult to do so under the current market economy conditions.