It is worth noting that due to the small emission concentration of styrene in the production process of composite materials, various VOC treatment technologies are inefficient and incomplete. In the presence of temperature, styrene is easily cross-linked and difficult to desorb. Therefore, it is difficult for the VOC emissions of styrene-based composite materials industry to meet the long-term and stable emission standards after collection and treatment, and the treatment cost is relatively high.
Generally speaking, at this stage, my country's composite solid waste recycling and comprehensive utilization technology has different targeted recycling and comprehensive utilization technologies according to the shape and nature of different solid wastes. At this stage, the relatively mature industrialized recycling and comprehensive utilization technologies mainly include reuse, mechanical pulverization, pyrolysis (high temperature cracking), chemical degradation (solvent), energy acquisition, etc. The basis for scale and scale. All of these have laid the achievable technical foundation for the composite material industry to create a "no-waste enterprise".
Regarding the question of how to build a "no-waste enterprise", the author believes that the first is top-level design and system construction. First of all, according to the requirements, in order to achieve low-carbon and green development, enterprises should participate in all employees, establish a working group for the creation of "no-waste enterprises", and strengthen the system construction of "no-waste enterprises" around the principles of green and sustainable development, and strictly enforce "no-waste enterprises". The management of solid waste, waste gas and waste water in “waste enterprises”, strengthen the propaganda of “waste-free enterprises”, and establish a paperless and information-based management platform.
The second is classified management and precise recycling. Enterprises should accurately investigate and analyze the nature, form and amount of waste produced according to the characteristics of product technology, tooling equipment, and procedures, and formulate scientific and reasonable collection and treatment methods to avoid any unorganized discharge. For example, leftovers, VOCs, dust, and water pollution of self adhesive mesh
, self adhesive drywall tape
, etc. should be more clearly investigated and discharged up to the standard.