Pollution Zero Discharge: Synthetic Leather Technology Revolution Water Pavilion Promotion

"In Wenzhou, the level of pollution control in our enterprises is at the level of" primary school ".

After arriving in Lishui, our pollution control level reached "high school" or even "university level".

Speaking of pollution control, Chen Zinan, manager of the administrative department of Zhejiang Li Bang Leather Co., Ltd. is especially proud.

"This year, the water Pavilion industrial zone has been awarded the title of the advanced demonstration base of China's synthetic leather recycling economy by the China Plastics Association, and has been listed as the pilot park of circular economy in the whole province by the provincial development and Reform Commission."

Wang Lijiong, director of the Lishui Economic Development Zone Management Committee, is even more gratified.

In the national ecological demonstration area of Lishui, because of the continuous tackling and popularization of a series of technologies for pollution control in the synthetic leather industry, and the implementation of the iron and steel pollution control measures by the municipal Party committee and the municipal government, the main battlefield of Lishui's industrial economy is the water Pavilion, which is leading the whole country because of green.

Waste water and waste water are all treasures. "Waste water and exhaust gas are all treasures in our factory. I really hate it when you tell me to discharge."

Xu Gang, deputy general manager of Zhejiang Wuzhou Industrial Co., Ltd. smiled.

The enterprise that only put into production in 2005 produces synthetic leather and leather cloth. Last year, its output value exceeded 300 million yuan, becoming the leader in the same industry.

"Enterprise efficiency doubles every year, which is inseparable from our resources."

Only the waste gas is recycled and reused, and the profit is about 3700000 yuan a year. "

In order to dispel doubts, Xu Gang broke his finger: the company has 3 dry production lines using DMF (two methyl formamide) gas to produce synthetic leather.

Last year, the company invested 1 million 800 thousand yuan to install DMF exhaust gas recovery device for each production line.

It can only recover 0.8 tons of DMF per device per day. According to the price of 6000 yuan per ton, it costs more than 4 months to put in the cost.

Similarly, waste water is also reluctant to discharge.

In the factory of Zhejiang Li Bang tanning Co., Ltd., green trees and grass are everywhere.

The company staff introduced that the irrigation water came from the treated industrial waste water.

Last year, the company invested about 2000000 yuan and built a sewage treatment plant with a daily capacity of 400 tons.

After physical and biochemical treatment, industrial waste water has reached the standard of reuse, and the company has saved 36 thousand tons of tap water a year.

The five technology is the leading product of biological leather, and synthetic leather belongs to the environmental protection industry.

How can we make the environmental protection industry more environmentally friendly and make the industrial parks greener?

From the date of construction and development zones, the municipal Party committee and the municipal government, according to the characteristics of synthetic leather suitable for recycling resources, require enterprises to build environmental protection facilities with high standards, and jointly carry out technological tackling with universities and colleges, use technology to reduce emissions, and rely on science and technology to increase efficiency.

As the witness and manager of the construction of Shui Ge Industrial Zone, Wang Lijiong has popularized the related technology promotion of Shui Ge synthetic leather.

He said that in terms of environmental protection and recycling of resources, the Shui Ge park has promoted 6 common technologies, and 5 technologies have taken the lead in the whole country, thus becoming a "sample" for the green production of the synthetic leather industry in the whole country.

In the popularization of generic technology, in addition to wet, dry production line recycling technology, there are DMF rectification system two methylamine treatment, waste residue harmless treatment technology.

It is worth mentioning that the Lishui Economic Development Zone will treat the pollution of synthetic leather waste as a "nose project". It is the first to popularize the DMF recovery technology of dry production line in the whole country, reduce the odor in the air, and stop the residents living in the development zone.

At the same time, it is also the first in the country to break through and popularize the DMF recovery technology of wet production line, and build the first synthetic leather waste harmless treatment center in China.

"Zero emissions" will eventually realize the current key technology called "revolutionary significance" of synthetic leather, which is being carried out in Shui Ge leather making enterprise.

This is the application and popularization of waterborne resin.

Fu Shanmiao, chief engineer of Zhejiang Wuzhou Industrial Co., Ltd. is no exaggeration to say that after the extensive application of the technology, the recycling of resources will be done well, and the synthetic leather industry will truly achieve "zero emissions" of pollution.

According to the introduction, at present, besides synthetic leather for high-grade special purpose, synthetic leather is mainly produced by PU resin and organic solvent.

If the waterborne resin is used in production, it only needs to dilute with water. This will reduce the organic solvent content of the product by more than 85%, and will greatly reduce the pollution discharge caused by the use of organic solvents.

Although there is no precedent for successful application and promotion at home and abroad, but with the government's push and good results, the Shui Ge synthetic leather enterprise is the first to take the initiative and actively involved in the experimental research.

At present, the experiment has been successful and has entered the pilot stage.