During the production of petrochemical forgings, a lot of waste will be produced, including waste slag, waste water, waste gas and so on. The treatment and utilization of these wastes is not only related to the environmental image of the enterprise, but also involves the effective use of resources and the reduction of enterprise costs. Therefore, the purpose of this paper is to discuss the treatment and utilization of waste in the production process of petrochemical forgings in order to achieve sustainable development.
The waste generated in the production process of petrochemical forgings mainly comes from the following aspects: raw material processing, forging process, cooling and heat treatment, cleaning and rust prevention. These wastes mainly include waste residue, waste water, waste gas and packaging materials. In order to facilitate subsequent treatment and utilization, it is necessary to classify these wastes.
Waste disposal method
Waste slag treatment: The waste slag mainly includes the oxide skin and chips produced in the forging process. The waste residue can be treated by mechanical compaction, smelting and recycling. Among them, the mechanical pressing block can compress the waste slag into a block, which is convenient for transportation and storage; Smelting recovery can recover the valuable metal elements in the waste slag and reduce the waste of resources.
Wastewater treatment: wastewater mainly comes from the cooling process, cleaning process, etc. For these wastewater, it is necessary to precipitate, filter, neutralize and other treatment to remove suspended solids, oil and harmful chemicals. The treated wastewater can be recycled to reduce water consumption.
Waste gas treatment: The waste gas mainly comes from heating furnaces, forging equipment, etc. For these waste gases, catalytic combustion, activated carbon adsorption and other methods can be used to treat them to remove harmful substances and odor. The exhaust gas discharged after treatment shall comply with relevant environmental standards.
Packaging treatment: Packaging mainly includes forgings packing boxes, packaging bags, etc. For these packages, they can be classified, recycled and reused to reduce resource waste.
Waste utilization path
Energy utilization: Waste residue, waste water, waste gas and other wastes contain a certain amount of heat and chemical energy, which can be recycled through certain technologies. For example, the waste can be burned as fuel to generate electricity or heat; The heat energy in wastewater can be recovered by heat exchangers. The combustible components in the exhaust gas can be burned to recover energy.
Reuse of resources: Some valuable elements and materials in waste can be recycled through certain technologies. For example, the metal elements in the waste residue can be recovered by smelting or mechanical separation; Useful chemicals in wastewater can be recycled by extraction or concentration.
Environmentally friendly material preparation: By treating and modifying the waste to a certain extent, some new materials with environmental protection properties can be prepared. For example, waste residue can be used as raw materials for preparing environmentally friendly bricks, roadbed materials and other building materials; Some components in wastewater can be used to prepare environmentally friendly coatings, waterproof materials, etc.
Construction of circular economy model: By integrating the treatment and utilization of waste into the circular economy system of enterprises, the recycling, reduction and harmfulness of waste are realized. This can not only reduce the production cost of enterprises, but also improve the environmental image of enterprises and market competitiveness.
The waste treatment and utilization in the production process of petrochemical forgings is the key link to achieve sustainable development. Through the discussion of the classification and utilization of waste, it can realize the recycling, reduction and harmfulness of waste, reduce the cost of enterprises and improve the image of environmental protection. In the future, with the continuous progress of science and technology and the increasingly strict environmental protection policies, the treatment and utilization of waste in the production process of petrochemical forgings will face more challenges and opportunities. Enterprises need to keep up with the trend of technological development and policy orientation, and constantly carry out technological innovation and management innovation to adapt to the changing market environment and social needs.
