Biochemical Technology Is The "Hero" Of Sewage Treatment.

Because of the "double control" of sewage, many printing and dyeing enterprises are limited in production and pressure is increasing. But the Xinyu dyeing and printing plant located in Lizhu town is still full load production. "We benefited from the adoption of biochemical treatment technology last year and reduced it earlier. Sewage concentration Therefore, the introduction of the new sewage policy will not affect us. " The person in charge of the enterprise said.

Lizhu town is a famous knitting town in China. Printing and dyeing enterprises mainly rely on knitted fabrics such as polyester fabrics. Up to now, 8 printing and dyeing enterprises have embark on printing and dyeing biochemical treatment process in 12 printing and dyeing enterprises above designated size. Compared with the traditional process, the printing and dyeing enterprises such as Li Zhu's biochemical process, the sewage volume is obviously reduced, and the sewage concentration is obviously reduced.

It is understood that in May last year, Xinyu dyeing and printing plant invested nearly 5 million yuan on the basis of the original physicochemical treatment, and adopted biochemical technology to build a sewage treatment pond covering an area of about more than 1300 square meters. The daily sewage capacity reached 5000 tons, which has been put into operation in June this year. In the same capacity and product quality unchanged, in June this year, the COD concentration in the printing and dyeing wastewater of the company was controlled at 400mg/l, which was 1 times more than that of last month. "There is a decline in potential, and the concentration of COD in July has dropped to 380mg/l." The company's personnel said. It is for this reason that Shaoxing will industrial waste water The production of Xinyu dyeing and printing plant was not affected when the COD 500mg/l concentration was raised.

Using biochemical treatment technology to achieve energy saving and emission reduction, the big bay dyeing and weaving company in Lizhu town has tasted the sweetness of early emission reduction and early action. "Da Wan dyeing and weaving" is the first enterprise in our county to adopt "jet aeration biochemical process and equipment". As early as the end of 2009, the 5000 day wastewater treatment project was solved. "Tai Wan dyeing and weaving" The difficulty of sewage disposal. "Running two years ago, the concentration of COD in our company's sewage is controlled at 300mg/l, which makes the focus of the enterprise more on product upgrading and filing." He Fangshao, a business operator, told reporters that this year, the company not only did not have a bad business in the summer, but also succeeded in raising the price of printing and dyeing.