What are the large chemical fiber enterprises in Xiaoshan?

(2) Comprehensively improve the green level of the production process

Adopt energy-saving equipment, develop energy saving and green energy utilization technology, improve energy utilization efficiency; Adopt green process and equipment technology with less pollution and no pollution, reduce or eliminate the generation and discharge of waste and sewage, and carry out comprehensive treatment of "three wastes" of discharged pollutants; Recycle raw materials to reduce the environmental impact of production activities. Energy efficiency improvement

Adhere to the priority of conservation, vigorously promote the revolution of energy consumption, improve the energy utilization efficiency of the chemical fiber industry, promote the cost reduction and efficiency of enterprises, accelerate the formation of green intensive production methods, and enhance the core competitiveness of the chemical fiber manufacturing industry.

With the application of advanced and applicable technology and equipment as a means to strengthen technology and energy conservation. We will comprehensively promote the upgrading of energy-saving technologies in all industries, and further promote special actions to improve energy efficiency in key enterprises. Accelerate the promotion of polyester esterification steam waste heat recovery and reuse technology, polyester, nylon, spandex spinning single-part multi-head spinning technology, screw extrusion electromechanical magnetic heating technology, physical recycling of polyester staple fiber production process of energy saving and emission reduction integrated technology, MVR mechanical steam recompression recovery of polyamide 6 monomer technology, spandex new heat transfer medium technology. We will continue to promote energy efficiency improvement projects for boilers, motors, transformers, air conditioning units and other general equipment, and organize the implementation of intelligent energy-saving plans for compressed air. Accelerate the innovation of processes, technologies and equipment, and promote the transformation of energy conservation in enterprises from partial and single energy conservation to the whole process and system energy conservation.

With the construction of energy management system as the core, improve management and energy conservation. Implement mandatory energy consumption standards, promote the construction of energy management systems in key enterprises, run the energy management system through the entire production process of enterprises, regularly carry out energy measurement reviews, energy audits, energy efficiency diagnosis and benchmarking, explore energy conservation potential, and build long-term mechanisms for energy efficiency improvement. Implement energy efficiency leaders in key industries to lead actions and drive the overall energy efficiency of the industry. Cleaner production promotion

Focus on key pollutants in the industry to carry out cleaner production technology transformation, promote green manufacturing processes, reduce pollutant emission intensity, reduce the use of toxic and harmful raw materials, and promote alternative or reduction technologies in key industries. Guide enterprises to use non-toxic and harmless or low-toxic and low-harmful raw and auxiliary materials in the production process, adopt green fiber manufacturing process, and reduce or avoid the generation of pollutants from the source. Promote the implementation process of green pulping technology and new solvent regeneration cellulose fiber technology in the viscose fiber industry, and gradually expand the scope of implementation.

We will promote technological transformation of cleaner production. In view of major pollutants such as sulfur dioxide, nitrogen oxides, chemical oxygen demand, ammonia nitrogen, smoke (powder) dust, we will actively guide key industries and enterprises to implement technological transformation of cleaner production, and gradually establish an efficient implementation model of cleaner production based on technological progress. Reduce sulfur dioxide, nitrogen oxides, smoke (powder) dust emission intensity. In key areas (Taihu Lake Basin), projects will be implemented to raise the level of cleaner production in key industries, and the total amount of industrial wastewater discharged and the intensity of pollutant discharge such as chemical oxygen demand and ammonia nitrogen will be reduced. Actively promote the efficient recovery and reuse technology of ethylene glycol and acetaldehyde in polyester wastewater, the process and device technology of flash crystallization to make sodium sulfate from viscose fiber production wastewater, the recovery and utilization technology of caprolactam in large nylon polymerization plant, the color of stock solution and the application of online pipeline addition technology, and promote the transformation of coal-fired boilers with ultra-low emission.

We will strengthen technology and equipment for water saving and pollution reduction. Focusing on high-water consumption industries such as viscose, recycled polyester and vinlon, we will carry out water balance tests and water efficiency standards, vigorously promote the transformation of water-saving technology, and promote industrial water-saving technology, technology and equipment. Strengthen the management of water use in the production process and working procedure of enterprises in high-water consumption industries, strictly implement the national standard of water intake quota, and improve the water use efficiency of enterprises. We will promote the recycling of water resources and the treatment and reuse of industrial wastewater.