China now produces millions of tons of old tires every year.With the rapid development of the economy and the development of the automobile industry, the annual waste tires in China have increased rapidly from 8% to 10%.
A statistics show that by 2020, China's waste tire production will reach 2000 tons. The growing "black pollution" has become an increasingly fragile ecological environment for China, so it is urgent to control the "black pollution" caused by waste tires. But in the face of such a large number of waste tires, and how to realize the treasure?
China's waste tire production in the world
According to the Ministry of environmental protection statistics show that as of the end of 2014, China's motor vehicle population reached 2.64, of which 1.54 motor vehicles, motor vehicle drivers to break through 3 people.
The Ministry of Public Security Traffic Management Bureau relevant responsible person introduced, along with the sustained and rapid economic and social development, the masses car rigid demand, Chinese car retains the quantity will continue to show rapid growth trend.
However, with the popularity of automobiles, waste tires and other waste are gradually increasing. It is said that China's tire production has been ranked the world's top 10 consecutive year, the annual waste tire is also the world's first.
Industry insiders predict that China's waste rubber and waste tire generation will be more and more. According to incomplete statistics, in 2013, China's waste tire production has reached 2.99, the weight reached 1080 tons and the speed of about 8%-10% per year.
On the one hand is the growing number of tire production data, on the other hand, it is to make a lot of headaches for waste tire safety accidents and pollution problems.
In recent years, caused by the waste tire safety accidents frequently appear in newspapers, discarded tires a large number of long-term accumulation, extremely easy to cause a fire, and is easy to cause secondary pollution.
It can be imagined, in the forefront of the world's tire holding China, the hidden dangers of waste tires is self-evident, scientific and effective disposal of used tires has become a hot topic in recent years.
Easy to breed disease and cause fire
In recent years, with the pollution of the tire has become increasingly prominent, people on the "black pollution" caused by waste tires has gradually increased.
It is understood that, in addition to the production of tires in the production process of waste gas, waste water and other pollution, the rapid increase in the number of the earth is causing serious "black pollution", to bring great challenges to environmental protection.
According to professional people, waste tires is a need to take up a lot of environmental space of waste, and it is difficult to compress, collect and eliminate. In view of the uncertainty of the time needed for the decomposition of old tires, they are not biodegradable, and their components include some hazardous elements, such as lead, chromium, cadmium and other heavy metals, if they are not disposed of properly, will pose a threat to human health and the environment.
In addition, the more the more piled up the long open air tires, not only will take up a lot of land resources, but also very easy to breed mosquitoes spread the disease, a serious deterioration of the natural environment, and may lead to a fire, threatening people's lives and property safety.
In some areas, waste tires are used as fuel, the serious pollution of the surrounding desert. Due to the special nature of its structure and composition, the surface of used tires is very difficult to control and extinguish once it is set up, and it will produce a large amount of smoke and toxic pollutants, which seriously pollute the environment and threaten human health.
For example occurred in 1990 in Ontario, Canada, Higgs vere fire and lasts for up to 17 hours, 1260 million tires were burned, 17 people were evacuated, plenty of oil material to infiltrate into the soil, near the river was contaminated with polycyclic aromatic hydrocarbons, resulting in the loss of incalculable.
Waste tire recycling why come to a standstill?
China is a big country of rubber consumption, according to statistics, in 2011 the national consumption of rubber 23 tons, ranking second in the world. The annual production of rubber products is about 46 tons, waste rubber production of about 18 tons, of which more than 6% of waste tires.
At present, recycling of various waste rubber about 9 tons, recycling rate of 5%, 3 to 4 percentage points lower than foreign advanced level. There are nearly 5% of waste rubber recycling, which is about 2% of waste tires, long-term stacking, difficult to degrade, become the source of "black pollution".
China's waste tire recycling is mainly the production of recycled rubber, tire renovation, production of vulcanized rubber powder, these enterprises more than 8% of small and medium enterprises, the formation of scale, low market competitiveness. Most of the equipment level is not high, the technical force is weak, the necessary testing equipment is not complete, which affects the quality of the refurbished tire further improve.
Also due to the waste tire recycling belongs to the semi public welfare undertakings, and its processed products are additional value is low, and discarded tires in China resources scattered, the recovery, processing, transportation costs high, and historical reasons for the formation of the personnel, heavy debt burden, the economic efficiency of enterprises poor, most enterprises suffered serious losses, unsustainable production and operation, waste tire recycling by industry development showed low level hovering.
Deng