Pre-treatment energy-saving emission-reduction production technology

Abstract

The invention relates to a pre-treatment energy-saving emission-reduction production technology, which comprises the following steps: 1)a scouring agent and hydrogen peroxide immersion bath one-step process: the multifunctional scouring agent which combines functions of an alkali collection agent, a stabilization agent, a chelating agent, an osmotic agent, an emulsifier and a detergent is used for replacing caustic soda, the stabilizing agent, the osmotic agent and the scouring agent in a traditional alkali-oxygen technology; 2)a high efficiency short-flow technology: the common cotton woven fabric employs an alkali-oxygen pad-steam one step method short-flow desizing-scouring-bleaching technology for replacing a routine desizing-scouring-bleaching method; for the thin type cotton woven fabric, a multi-functional high efficiency auxiliary agent and hydrogen peroxide one-bath one-step pad-steam technology is employed; 3)a old pad-short steaming technology; the old pad-short steaming technology is employed; 4)a biological enzyme pre-treatment technology: the biological enzyme pre-treatment technology is employed for cotton and blending fabric. The method has can effectively perform pre-treatment with energy saving and emission reduction, and can reach the environmental protection effect.

Description

technical field [0001] The invention relates to a pretreatment energy-saving and emission-reduction production technology, and belongs to the technical field of energy-saving and emission-reduction. Background technique [0002] China's textile industry, especially the printing and dyeing industry, is bound to be impacted by the "green" wave due to some urgent problems in environmental pollution, ecological deterioration, energy consumption, and resource waste; the printing and dyeing industry is a large water user, and the unit product Water consumption is about three times that of developed countries. Printing and dyeing wastewater accounts for 80% of the country's textile wastewater discharge. The discharge of major water pollutants COD ranks 4th among all industries, ammonia nitrogen ranks 6th, and the average water reuse rate is low. to 10% (mainly circulating cooling water), which is the lowest in all industries. [0003] The consumption of dyeing and chemical materia...

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Problems solved by technology

[0003] The consumption of dyeing and chemical materials is also 20%-30% more than that of developed countries. Therefore, printing and dyeing wastewater has long plagued enterprises and governments and restricted the development of the industry. Achieving remarkable results has been listed as one of the important goals to be achieved by the textile industry in the past three years. The plan emphasizes that by 2010, the entire industry should achieve an average annual reduction of energy consumption per unit of added value by 5%, an average annual reduction of water consumption by 7%, and waste water discharge. For the textile industry, energy saving and emission reduction is not only an obligation, but also a responsibility that must be fulfilled. The textile printing and dyeing industry in the Yangtze River Delta region is well developed, and the advantages of industrial clusters are obvious. The treatment of printing and dyeing wastewater has been dispersed from the original However, relevant research and statistics show that nearly half of the printing and dyeing enterprises have outdated equipment, traditional technology, weak technical force, little progress in technological transformation and technological innovation, process optimization and new technology application have not yet fully completed. In place, there is still huge room for improvement in process control, process management, resource recycling, etc. It is imperative to implement energy conservation and emission reduction