The whole degradative plastic bag is just environmental protection
If splitting into small chip can't be decomposed again
According to tiger's network of dragon of Nanjing, the green complete degradative plastics Co., Ltd. of the ring of Nanjing has made real ring out and saved the degradative plastic bag from damage, but not produced one yet, has been forced to stop work.
"Why say the environmental protection of the whole degradative plastic bag? This for a lot of degradative plastic bag known as ' environmental protection ' at the market at present but the the speech one " ,Ring green company's general manager, agricultural university professor Zhang WenHui in Nanjing in Nanjing say while giving an interview, "degradative plastic bag, the environmental protection that still seem very one tin of violently, in fact it is more terrible in pollution of the soil. Because the degradative plastics are making of 15% of the starch and polyethylene. Among them the starch can be decomposed, but it is unable to degrade to belong to polyethylene of the petroleum product in 200 years. If these degradative plastic bags imbed the soil, will split into several small fragments 6 months later, but these small fragments can't continue decomposing, have to stay in the soil for a long time. To some degree, the plastic bag that the degradative plastic bag can't be decomposed than at all, more difficult to handle! And the plastic bag totally degraded is completing with 20% of the starch and polyester, after generally burying 3 in the soil to June, can be totally digested by the soil. "
The whole degradative plastic bag is seldom produced
The cost is too high, nobody buys
It is reported, there is not a factory producing complete degradative plastic bag in enormous quantities at present at home. Because of cost and sale, the producer does not dare to try easily.
The expert thinks, if want to popularize the plastic bag totally degraded by a large scale, there must be relevant supplementary measures in the country, otherwise complete the degradative plastic bag can only stay in the laboratory.
It is most effective to issue the support policy
The person in charge of the employer's organization of Nanjing food and beverage says, from 1997 to 1999, government departments such as the general bureau in environment protecting mode, Ministry of Public Health,etc. have sent out and forbidden using the foaming snack box, recommending using the regulation of the degradative meal box in succession or jointly. But because of lacking specification and supplementary measure of operability, always have problems to carry out, up till now, it is still easy to find the trace of the foaming snack box on the market.
In view of this, some trade companies say, if want to pursue the whole degradative plastic bag, government department must lay more capital, to produce carry on corresponding support, go on technically, sell, have, popularize support that pay to retailer.
The most important one is still the public environmental consciousness of cultivation, it is not a environmental protection type plastic bag to refuse to use.
External experience
The government sells the policy amazingly
U.S.A.: Originally, U.S.A. confirmed the federal organization and must buy the biological base products that United States Department of Agriculture appointed as the project inside the plan preferably. Under the circumstances that such a policy is stimulated, gathering biodegradation products such as lactic acid,etc. enters the government to purchase the list preferably smoothly.
Japan: Japanese Government has made " Japanese bionass strategy " too, includes developing biological degradative plastics and biological base polymer, this measure makes " Environmental protection " Pursue on a large scale. (gold tip)
The whole degradative plastic bag is just environmental protection
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