Changxing County Printing And Dyeing Enterprises Concentrate On Self Built Reclaimed Water Reuse Station To Reduce Pollution

< p > from the initial 400mg/L to less than 100mg/L now, the COD (COD) value of Zhejiang Sheng Fa a target= "_blank" href= "//www.sjfzxm.com/" > textile < /a > printing and dyeing Co., Ltd. has been effectively reduced in the past two years, and by the end of this year, all the < a "400mg/L" printing and dyeing enterprises will be built in the middle of the year.

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< p > in the town of Changxing County, 11 of the 13 printing and dyeing enterprises in this county are gathered here, while the east of Taihu also makes the printing and dyeing "hot earth" the focus of attention.

"Weaving on the coast of Taihu is not easy."

"Sheng Fa" a middle-level cadre deeply touched, "not only the county environmental protection department stares tightly, the city, the province and even the country are staring at this piece of blue water.

Once the water quality of Taihu is on the move, we will be nervous.

"In the past, the printing and dyeing enterprises in Changxin were relatively simple in the process of sewage pretreatment, no biochemical reaction was needed, and the COD value of effluent was also lower. But starting from this year, all printing and dyeing enterprises in the county will enhance their own sewage treatment facilities, reduce the COD value to less than 200mg/L, and if they fail to meet the requirements, they will not give sewage indicators."

Shen Jie, deputy director of the Environmental Protection Bureau of the County Environmental Protection Bureau, told reporters.

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< p > sampling, testing, recording, keeping...

In the a href= "//www.sjfzxm.com/news/" > the middle water reuse station with printing and dyeing < /a >, the inspector Xiao Wang repeats the manual test procedure every morning.

In his "Sheng Fa Zhong Shui Hui station operation report", it clearly records the water quality detected in every process.

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< p > 1088, 570, 146, 98. This is the COD value of the sewage detected by Xiao Wang in the regulation pond, the primary settling tank, the two settling tank and 4 effluent treatment processes yesterday morning.

After a gradual filtration, the content of COD gradually decreased.

He told reporters that after a series of biochemical reactions such as hydrolysis, mediation, initial sedimentation, aerobic and two sedimentation, the sewage will be discharged to a large sewage treatment station for final treatment.

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< p > is in these processes, enterprises also add pressure, as early as in 2011 invested 10 million yuan to build a reclaimed water reuse station, high standard management enterprise sewage.

Every day, 4 production plants in the factory generate 3000 tons of sewage. After sewage treatment, part of it will be discharged to the sewage treatment plant, and some of them will be reused by enterprises.

"As early as this year, the COD of our factory's effluent quality has been reduced to less than 100."

"Sheng Fa" office director Sun Xuyang said.

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< p > now, under the successful experience of "Sheng Fa", all the a href= "//www.sjfzxm.com" > printing and dyeing enterprises < /a > jointly invested 23 million yuan to build a sewage pretreatment station with a daily capacity of 20 thousand tons, concentrating on the sewage discharged by enterprises, and it is expected to be completed by the end of this year.

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