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以进口澳洲牛皮沙发蓝湿革加工工艺为研究对象,对制革清洁工艺与常规工艺的氯离子、硫离子、总磷和总铬等污染物的产生规律及产污系数进行了对比研究。结果表明,在整个加工过程中,有66%~73%的氯离子来源于浸水工序,采用清洁化浸酸鞣制工艺能有效降低生产过程中氯离子的产生,削减率为50%。对于总磷的产污量,清洁化工艺与常规工艺差别不大。90%的硫离子来源于浸灰脱毛工序,采用清洁化保毛脱毛工艺能削减硫离子45%。采用高吸收铬鞣技术能有效削减总铬约80%,产污系数则减少75%左右。
Taking the processing technology of blue wet leather imported from Australian leather sofa as the research object, the generation rules of pollutants such as chloride ion, sulfur ion, total phosphorus and total chromium and the coefficient of pollutant production were studied in the tanning process and the conventional process. The results showed that 66% ~ 73% of the chloride ions were from the immersion process during the whole process. The cleansing pickling tanning process can effectively reduce the production of chloride ions by 50%. For total phosphorus production, clean technology and conventional technology is not very different. 90% of the sulfur ions come from the leaching and depilation process, and 45% of the sulfur ions can be reduced by the cleaning and hair removal process. The use of high-absorption chrome tanning technology can effectively reduce the total chromium about 80%, the production coefficient is reduced by about 75%.