Wuxi hudong meister environmental engineering co., ltd.

1. The performance is proud and the praise is constant.

Wuxi Hudong Meister Environmental Engineering Co., Ltd., formerly known as Wuxi No.2 Construction Machinery Factory, is a professional manufacturer of chemical machinery in the Ministry of Chemical Industry. Wuxi Hudong University Environmental Engineering Co., Ltd. realized the importance of environmental protection for the sustainable development of national economy earlier. With the country's emphasis on environmental protection, Wuxi Hudong University Environmental Engineering Co., Ltd. seized the opportunity to enter the field of environmental protection. As early as the end of 1980s, we invested millions of yuan to cooperate with foreign air floatation experts to develop ultra-efficient shallow air floatation water purifier. The first ultra-efficient shallow air flotation water purifier with large caliber (φφ 10m) in China was successfully developed by Wuxi Hudong Meister Environmental Engineering Co., Ltd. and took the lead in entering the market. Shallow air flotation equipment first appeared in the printing and dyeing industry. Because the pollution in the printing and dyeing industry is much greater than that in the general industry, the voice of environmental protection is very high. The ultra-efficient shallow air flotation water purifier was put into industrial operation on 1992, and achieved good results in the treatment of printing and dyeing wastewater in Jiangsu Changshu Shuangmao Group. Through the joint detection of Jiangsu Environmental Monitoring Center, Jiangsu Environmental Monitoring Station, Shanghai Light Industry Design Institute, East China University of Science and Technology and Shanghai Environmental Technology Station, the authenticity and effectiveness of air flotation treatment of sewage were finally confirmed, which attracted wide attention at home and abroad. At the national industrial wastewater treatment technology exchange meeting held in 1994, it was praised as' the pride of national industry' by the leaders of the State Environmental Protection Administration.

During the period of 1997, cqj ultra-efficient shallow air flotation water purifier of Wuxi Hudong Meister Environmental Engineering Co., Ltd. played an important role in achieving the' zero action' standard in Taihu Lake Basin and Yangtze River Basin. Therefore, China Paper Association held a symposium in Wuxi on March 1999 15- 18 to promote the cqj ultra-efficient shallow air flotation water purifier of Wuxi Hudong Meister Environmental Engineering Co., Ltd., and then the Jiangsu provincial government held a working meeting on papermaking wastewater treatment in the Yangtze River basin and six provinces and one city in East China on March 25 1999. At the meeting, cqj ultra-efficient shallow air flotation water purifier of Wuxi Hudong Master Environmental Engineering Co., Ltd. was introduced and popularized, and delegates were organized to visit the sewage treatment site of Taiwan Province Rongcheng Paper Co., Ltd. in Wuxi. Therefore, shallow air flotation technology has been rapidly popularized in the field of environmental protection.

Cqj ultra-efficient shallow air flotation water purifier of Wuxi Hudong Meister Environmental Engineering Co., Ltd. was rated as a national new product and high-tech product in 1998. At present, the ultra-efficient shallow air flotation water purifier sells well all over the country, especially in thousands of enterprises such as Guangzhou Paper Co., Ltd., Henan Luohe Yin Ge Paper, Shandong Linqing Yinhe Paper, Hunan Yueyang Paper, Hong Kong Liwen Paper, Zhongnan Company nine dragons paper, Taiwan Long Da Rongcheng Paper, Guangjin Group (app), Mudanjiang Hengfeng Paper, Jiaxing Minfeng Paper, Shandong Sun Paper and Shandong Chenming Paper, which have been well used and widely praised. Some products have been exported abroad. At present, this product has become an ideal equipment for white water recovery and wastewater treatment in paper industry. However, Wuxi Hudong Meister Environmental Engineering Co., Ltd. is not satisfied with the status quo. With the aim of "making continuous progress and developing advanced environmental protection products suitable for China's national conditions for the benefit of future generations", we have invested a lot of manpower and material resources in in-depth research and experiments, and made many major improvements to cqj ultra-efficient shallow air flotation water purifier, and now the 6th and 7th generation ion air flotation products have been developed.

2. Adhere to scientific and technological innovation and make major technological breakthroughs.

The principle of air flotation water purification is to introduce a large number of tiny bubbles into wastewater, and the bubbles attach to the suspended matter through the action of surface tension, so that the overall density of bubbles and suspended matter is less than 1, and float to the water surface under the action of buoyancy to realize solid-liquid separation, thus purifying wastewater.

The traditional air flotation process has low treatment capacity due to the defects in design and structure. The retention time of wastewater in air flotation is 40 ~ 60 min, and the equipment is large in size and the purification rate is very low.

The appearance of ultra-efficient shallow air flotation water purifier is a major breakthrough in air flotation water purifier technology. It changes static water inflow and dynamic water outflow into dynamic water inflow and static water outflow, and uses the principle of "zero speed" to make the floating body float perpendicular to the water surface in a relatively static environment, so that the floating distance is minimized and is not affected by the water outflow speed. The theoretical pool depth is only about 450 mm, the retention time of wastewater in air flotation is only about 3 ~ 5 min, and the equipment volume is greatly reduced. Coupled with the advantages of uniform bubble distribution, no bubble dead zone and small disturbance to water body by mud scraper, the purification efficiency is greatly improved.

The successful development of CQJ ultra-efficient shallow ion air flotation water purifier is another major breakthrough in air flotation water purification technology and has achieved a qualitative leap. On the basis of ultra-efficient shallow air flotation, this product has undergone many major improvements, mainly adopting patented products developed by the company-high-efficiency dissolved air device with special structure and high-efficiency integrated energy dissipation system, with the dissolved air rate reaching the theoretical maximum and no concentration gradient.

CQJ ultra-efficient shallow ion air flotation water purifier not only removes suspended solids as high as 99.8%, but also is sampled by famous water treatment experts of Shanghai Light Industry Design Institute and tested by many authoritative institutions. The removal rate of dissolved CODCr is as high as 10% ~ 30%, which is praised by experts as "ion air flotation with international leading level".

The CQJ super-effect shallow ion air flotation water purifier also has a great advantage: because the diameter of microbubbles is extremely small and the density is extremely high, it can fully capture the extremely fine suspended solids, and it is not necessary to condense into large alum flowers in advance, so the dosage can be greatly reduced, and in some cases, it can even be operated without chemicals, which greatly reduces the operating cost. In biochemical treatment, dissolved oxygen can increase rapidly.

3. Challenge the traditional theory to win the world problem

Wuxi Hudong Meister Environmental Engineering Co., Ltd. broke the traditional theory of manufacturing releasers for the first time in the research of releasers. According to the traditional theory, the releaser is a decompression device. As long as the dissolved gas and water suddenly decompress, microbubbles can be released. The greater the pressure difference, the smaller the microbubbles released. But research shows that this understanding is far from enough!

In fact, complete energy dissipation is very important for the release of dissolved gas, which is just ignored by traditional theory. At present, all kinds of releasers in the world fail to completely dissipate energy, and the outlet flow rate is quite high, which seriously interferes with the release environment of dissolved gas. After a long period of research and repeated experiments, Wuxi Hudong Meister Environmental Engineering Co., Ltd. successfully developed an "efficient comprehensive energy dissipation system", which solved the above problems well. The sixth generation CQJ series ultra-efficient shallow air flotation water purifier of Wuxi Hudong Meister Environmental Engineering Co., Ltd. has adopted this "integrated energy dissipation system" to replace the traditional releaser and achieved ideal results. The average diameter of the released microbubbles is only 1 ~ 7 microns, which is very uniform. According to the data, at present, the number of microbubbles released in the world is generally between 50 ~ 100 μ m, that is to say, through this improvement, the number or density of bubbles has increased by at least 8000 times, and the total area of bubbles has increased by at least 400 times under the condition of equal dissolved gases!

In addition, the scientific and technical personnel of Wuxi Hudong Meister Environmental Engineering Co., Ltd. have successfully developed a new type of dissolved gas pipe with unique structure through the research of various existing dissolved gas devices, which completely overcomes the defects of various existing dissolved gas devices in the world. It only takes 3 s to make the dissolved gas concentration of dissolved gas water reach the theoretical maximum, greatly improving the dissolved gas efficiency, and making the air dissolve in water almost without diffusion process, thus accelerating the dissolution of air molecules, completely eliminating the concentration gradient and improving the dissolved gas.

The key to high-efficiency super-effective shallow air flotation lies in the "zero-velocity principle". The 6th generation CQJ series ultra-efficient shallow air flotation water purifier of Wuxi Hudong Meister Environmental Engineering Co., Ltd. has truly achieved "zero speed", so its treatment capacity is also the largest among products of the same type and specification.

In a word, the 6th generation CQJ series ultra-efficient shallow air flotation water purifier of Wuxi Hudong Meister Environmental Engineering Co., Ltd., because of its original proprietary technology, compared with similar products in the world, under the same reflux ratio, the air dissolving efficiency is improved by nearly 1 times, and the number or density of bubbles and the total area of bubbles are greatly improved.

4. Overcome the technical bottleneck and focus on deinking wastewater

The advent of the seventh generation air flotation products has gone through a difficult process from denial, doubt, affirmation to recognition. The new system is the first in the world to break through the technical bottleneck and enter the white water recovery system and the CODCr decoloration project of pulping wastewater.

The 7th generation air flotation products can effectively solve a series of problems that have plagued the paper industry for a long time, such as pulp can't be recycled, high water viscosity, poor drainage performance and high operating cost. No chemicals are added in the white water recovery, especially in the white water recovery of household paper, which has caused a great sensation in the industry, and has been successfully operated in enterprises such as Japanese Prince, Yu Yongfeng, Taiwan Province Province, Smick, Deutsche Company, Li Qian, and Indonesian Golden Light. Small investment and big return have become a reality, the quality of paper has been improved, and it has been affirmed by customers.

The seventh generation air flotation products also showed high decolorization effect in the advanced treatment of water in pulp, further reducing CODCr, rapidly increasing dissolved oxygen and greatly improving biochemical efficiency. It has been successfully applied to the advanced treatment of pulping intermediate water in dozens of pulping enterprises and has been affirmed by customers.

Due to the improvement of pulping and papermaking machinery, technological progress and the improvement of water circulation efficiency, the water consumption per ton of paper is greatly reduced; Under the premise that the total amount of pollutants has not changed greatly, the wastewater load, pollutant concentration and water temperature have all been greatly improved, and it is difficult for the precipitation and biochemical treatment of wastewater to meet the requirements of environmental protection. The air flotation system of Wuxi Hudong Meister Environmental Engineering Co., Ltd. can greatly increase dissolved oxygen and ensure the improvement of biochemical efficiency.

In the treatment of waste paper deinking wastewater, the seventh generation air flotation products have also made a major breakthrough. Because the deinking wastewater is alkaline, the temperature is high, and the dosage of polyaluminum chloride (PAC) is large, the dosage of hydrogen peroxide needs to be increased after the wastewater is reused, which increases the operating cost. The 7th generation air flotation products solved this problem well. In practical application, without adding or adding a small amount of polyacrylamide (PAM), good results can be achieved, the quality of wastewater reuse can be improved, and the operating cost can be greatly reduced, which has become the focus of deinking wastewater treatment in paper industry. Dozens of enterprises, such as Guangzhi Group, Liwen Group, Jin Daxing, Jiangxi Chenming, Wuhan Chenming, Shouguang Chenming, Jilin Paper, Sun Paper, Shixian Egret, Fujian Nanzhi Co., Ltd. and Yuezhi Group, have run well and won high praise from users.

Ultra-efficient shallow air flotation technology has been ahead of the international level and has been fully affirmed by the industry. However, general manager Lu said that Wuxi Hudong Meister Environmental Engineering Co., Ltd. will continue to increase investment and make efforts in research and development to contribute to wastewater treatment in the pulp and paper industry.

Environmental protection expenses are included in the cost to create a level playing field.

When asked about the gap between China and the developed countries in the paper industry, the general manager Lu said frankly: "I personally think that the gap in environmental protection is mainly ideological, but not big in hardware technology. In my opinion, quite a few enterprises still think that pollution control is a helpless move, an image project with only social benefits but no economic benefits. Even if the facilities are complete, it is subjectively ignored. Reducing the operating cost will lead to the failure of the sewage treatment system to operate normally, and even steal sewage. In some places, protection causes unfair competition, which is one of the reasons why environmental protection is considered to be a burden. If one day the cost of environmental protection governance is included in the product cost and there is fair competition, then no unit or individual will regard environmental protection governance as a burden, which is fair and reasonable. "