Application and Study of New Highly Efficient Process of Dyeing and Finishing Wastewater of Knitted Fabrics
In this paper,it introduces the new highly efficient process of'grid+cooling+multifunctional regula-tion+aerobic treatment+fenton treatment'.By studying the new process and the chemical composition of dyeing and finishing wastewater of knitted fabrics,the new technology is applied to the actual wastewater treatment,and then compared with the traditional wastewater treatment process.The results show that the treatment scale of existing wastewater treatment plant can be increased from 35 000 m3/d to 53 000 m3/d by using the new treatment process with an increase rate of 51.43％.The effluent CODCr,BOD5,chroma,TN,NH3—N,TP of the of the system meet the first level A standard of GB 18918-2002"Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant".Other indicators meet the GB 4287-2012"Discharge Standard of water pollutant for dyeing and finishing of textile industry".The CODCr removal rate of biochemical system increases from 84％to 89％.The amount of odor,sludge and treatment cost are reduced by 81 000 m3/d,18 t/d and 1.22 yuan/m3 respectively.
Knitted FabricsDyeing and Finishing WastewaterHighly Efficient ProcessingNew Process of Wastewater Treatment
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