Recycling and reuse for chemistry
- Article Author: Maya Chen / Deputy Manager of Industrial Environment Division
Chemical Industry and Circular Economy
Chemistry is an indispensable element of current production and an essential catalyst for social progress and human survival. However, since the development of the chemical industry, not only more and more production procedures are required, but the wastes of chemicals are produced. This situation leads the chemical industry to become complex. Therefore, the chemical industry often gives the world a negative impression: the development of the chemical industry must be at the cost of pollution and impact on the environment. We are facing this seeming mire state. If we think differently, maybe we can change it! At this time, the "circular economy" provides an excellent opportunity for chemical development.
Recycling creates the highest value.
In the circular economy system, the value of resources should be maximized and be recycled. Look out of the product life cycle, people have invested resources, labor, and intelligence are for maximizing value. The waste generated in the chemical manufacturing process (discussed from the perspective of circular economy, should be called "by-product"). By-product recycling refers to the by-product of the process being put into the original process, another process, or directly sold as a product. The recycling method can be classified into: Within the enterprise, Within the industry, and Outside the industry. These recycling methods can create the highest value.
Recycling of waste and high value of by-products
Within-industry recycling means continuing to circulate in the manufacturing process through remanufacturing and reusing until it can not be recycled. For example, in the biological buffering agent process, the substances produced in the middle of the production will be added back to the original process, which can increase the product yield and reduce the waste liquid output. The solvents used in the manufacturing process are distilled by high-efficiency purification equipment, which leads to the solvents can be reused in the product manufacturing process. In addition, it is also used in another product process. We converting wastes into resources and restoring the implicit value of raw materials at the end of a product's life. Reaching the goal of "Reuse of resources and the full recycling of materials". Not only reduce the cost of raw materials but also the discharge and treatment costs of wastewater. Besides, the wastes that cannot be recycled have been planed to cooperate with external waste treatment plants. In the future, these wastes will be processed by them, and the waste heat generated by the treatment will be produced through recycling technology to produce steam, and the energy will be returned to the production process of our factory. This is a win-win strategy for outside the industry.
Further Reading:The trend of sustainability for the chemical industry
Further Reading: From green production to sustainable development
Further Reading: Green production process - High effciency RD system