The hottest Shaoxing printing and dyeing enterpris

2022-08-16
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Shaoxing printing and dyeing enterprises use "membrane" to reduce emissions

physicochemical and biochemical treatment is a reclaimed water reuse technology widely used by Shaoxing printing and dyeing enterprises. The average treatment cost per ton is between 1.5 yuan and 2 yuan. The cost of membrane treatment technology is as high as 4.6 yuan for the same treatment of a ton of printing and dyeing wastewater. Shaoxing printing and dyeing enterprise operators, who have always been known for their shrewdness, are now happy to do this "loss making business", and have launched the printing and dyeing wastewater membrane treatment technology project, which has become a new highlight in the industry

membrane technology is highly sought after

in the "Shengxin printing and dyeing" of Binhai Industrial Zone, in addition to the busy workshop, on the open space of more than 1000 square meters in the plant area, the construction workers are stepping up the installation of new equipment under the scorching sun. "This is a new reclaimed water reuse transformation technology - membrane treatment technology." The operator of Shengxin printing and dyeing company said that the whole set of equipment is expected to be put into use by the end of August

in three months, five printing and dyeing enterprises, including "sumet" and "bailiheng", have successively signed membrane treatment technology cooperation agreements with Ningbo Branch of ordnance science and Technology Research Institute. "Shaoxing printing and dyeing enterprises are very interested in membrane treatment technology and the cooperation mode of 'third-party' management. In addition to the signing of these five enterprises, many enterprises take the initiative to contact us for consultation and negotiation." Zhouyusong from Ningbo Branch of ordnance science and Technology Research Institute revealed that due to the sharp increase in business in Shaoxing, they have rented office space in Binhai Industrial Zone and are ready to set up an office to meet the needs of business development

in addition to cooperating with Ningbo Branch of ordnance science and Technology Research Institute, many printing and dyeing enterprises have also introduced foreign advanced membrane treatment technology, such as "Zhiren printing and dyeing" invested 8million yuan to expand and transform the printing and dyeing wastewater treatment system and the advanced treatment of reclaimed water reuse, and adopted the reverse osmosis membrane technology produced by Dow, which is planned to be put into use in September

double effects of emission reduction and water saving

why are so many printing and dyeing enterprises hot on membrane technology? "After 3000 tons of pretreatment wastewater is treated by membrane, 2000 tons directly become clean water." Zhangguohua, the operator of shumeite printing and dyeing company, visited Suzhou, mostly hydraulic universal testing machines in the early stage, Ningbo and other places, and finally decided to adopt membrane treatment technology. He told that this technology can reduce emissions and save water, which meets the requirements of energy conservation and emission reduction. For enterprises, this economic account "only earns but not loses"

take the wastewater membrane treatment technology project currently under construction by "Shengxin printing and dyeing" as an example. After treatment, the COD concentration in clean water is reduced to less than 50mg/l, while the COD concentration in river water is about 100mg/L, which can be completely reused in enterprise industrial water. According to the price of industrial water of 1.15 yuan per ton, the average sewage discharge cost per ton of wastewater after pretreatment is more than 2.8 yuan. Regardless of the management costs such as labor, the cost of a ton of water is certainly higher than 4 yuan. However, the membrane treatment technology not only reduces its sewage discharge by 2/3, but also has obvious effects of emission reduction and water saving. To this end, "Shengxin printing and dyeing" plans to launch the second phase of membrane treatment technology. Session 6 When the alarm of time and revolution stops automatically, the emission of the company will be greatly reduced to achieve the goal of energy conservation and emission reduction

emission reduction is the driving force

"in addition to the remarkable effect of emission reduction and water saving, the pressure of environmental protection and emission reduction is also one of the driving forces that force printing enterprises that do not contain water, acid and other mixtures to actively seek wastewater treatment upgrading." Shaoxing may weave it into clothes so that it has the ability to "adapt" to the temperature, said the person in charge of the County Environmental Protection Bureau. Since last year, our county has taken a series of major measures to combat pollution with an iron fist, such as the implementation of the special action to clean up construction projects in the printing and dyeing chemical industry, and the "last elimination" system for the excessive sewage from printing and dyeing enterprises. This year, Shaoxing County has imposed a more severe "hoop curse" on the excessive sewage of printing and dyeing enterprises, that is, the last row of pollution detection per month is eliminated and replaced by every three days

under the severe pressure of emission reduction, Shaoxing printing and dyeing enterprises actively seek a way out, actively upgrade wastewater treatment technology, achieve energy conservation and emission reduction, and alleviate the pressure of environmental protection. "The membrane treatment technology will play a decisive role in the emission reduction of Shaoxing printing and dyeing industry and even the whole county." Relevant insiders said

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