Chemical industry has both advantages and disadvantages to social development.

1, the use of chemical fertilizers and pesticides increased the yield of crops;

2. The synthesis of new drugs has saved millions of lives;

3, clean the development of pollution-free energy, for our blue sky and clear water.

Disadvantages: While promoting development, it will inevitably bring some disadvantages. Large-scale production of national economy needs a lot of raw materials, production will consume a lot of resources, and it will do great harm to the environment in resource exploitation;

A large amount of production wastewater will be produced in production, and some unscrupulous manufacturers will directly discharge substandard sewage, which will cause serious harm to the environment and residents; In the later period, many chemical products, such as plastics, cannot be recycled, which will also cause environmental pollution.

Extended data:

The importance of chemistry

The traditional chemical industry has brought serious pollution to the environment, and the world produces 300 million to 400 million tons of harmful waste every year, which is harmful to the environment and threatens the survival of mankind.

Whether the chemical industry can produce chemicals that are harmless to the environment, or even develop processes that do not produce waste, people of insight put forward the call for green chemistry, which immediately received positive responses from all countries in the world. The core of green chemistry is to eliminate pollution from the source by using chemical principles.

Green chemistry poses a new challenge to chemists and is highly valued internationally. From 65438 to 0996, the United States established the "Green Chemistry Challenge Award" to commend those enterprises and scientists who have made outstanding achievements in the field of green chemistry. Green chemistry will change the face of chemical industry and benefit future generations.

Up to now, most processes in the chemical industry were developed more than 20 years ago, and the processing costs at that time mainly included raw materials, energy consumption and labor costs. Because the chemical industry has discharged a lot of toxic and harmful substances into the atmosphere, water and soil. Take 1993 as an example, the United States only estimated the emissions of 365 toxic substances, and the emissions of the chemical industry were 3 billion pounds.

Therefore, the treatment cost increases the waste control, treatment and burial. Environmental monitoring, compliance, accident liability compensation and other expenses. 1992, American chemical industry spent11500 million dollars on environmental protection and 700 billion dollars on cleaning up polluted areas. 1996 DuPont's total sales of chemicals in the United States is1800 million US dollars, and its environmental protection expenses are 10 billion US dollars.

Therefore, from the requirements of environmental protection, economy and society. The chemical industry can no longer bear the cost of using and producing toxic and harmful substances. We must vigorously study and develop green chemistry to reduce and eliminate pollution from the source.

1990 The United States promulgated the Pollution Prevention Act. Establish pollution prevention as a national policy of the United States. The so-called pollution prevention means no more waste. There is no longer the problem of waste treatment, and green chemistry is the basis and important tool to realize pollution prevention and control.

1In April, 1995, American Vice President Al Gore announced the national environmental technology strategy. Its goal is: Earth Day in 2020. Waste is reduced by 40-50%, and raw materials consumed by each device are reduced by 20-25%. 1996 The United States established the Presidential Green Chemistry Challenge Award. These government actions have greatly promoted the vigorous development of green chemistry.

In addition, Japan has also formulated a new sunshine plan. In the field of research and development of environmental technology. The contents of green chemistry such as environment-friendly manufacturing technology, environmental pollution reduction technology, carbon dioxide fixation and utilization technology are determined. In a word, the research of green chemistry has become an important research and development trend of foreign enterprises, governments and academic circles. This is not only a severe challenge for our country, but also a rare development opportunity.

References:

Baidu encyclopedia-chemistry