1. Proud performance and praise
Wuxi Hudong Mast Environmental Engineering Co., Ltd. was formerly known as the Wuxi Second Engineering Machinery Factory, is the Ministry of Chemical Industry, the production of chemical machinery specialized manufacturers. Wuxi Hudong Mast Environmental Engineering Co., Ltd. realized the importance of environmental protection for the sustainable development of the national economy earlier, with the national emphasis on environmental protection, Wuxi Hudong Mast Environmental Engineering Co., Ltd. seized the opportunity to enter the field of environmental protection. As early as the end of the 1980s, we invested millions of dollars in cooperation with foreign air flotation experts to research and develop super-effective shallow air flotation water purifier. The first large-diameter (φ10m) super-effective shallow air flotation water purifier is the Wuxi Hudong Mast Environmental Engineering Co. The first launch of shallow air flotation equipment is in the printing and dyeing industry. Because the printing and dyeing industry pollution than the general industry pollution is relatively much larger, the call for environmental protection is also relatively strong. Super-effective shallow air flotation water purifier was put into industrial operation in 1992, and achieved good results in the dyeing and printing wastewater treatment of Jiangsu Changshu Double Cat Group. By the Jiangsu Provincial Environmental Monitoring Center, Jiangsu Provincial Environmental Monitoring Terminal, Shanghai Light Industry Design Institute, East China University of Science and Technology, Shanghai Environmental Technology Terminal joint test, the final confirmation of the authenticity and effectiveness of air flotation treatment of sewage, attracting widespread attention at home and abroad, in 1994 held a national industrial wastewater treatment technology exchange meeting was praised by the leadership of the State Environmental Protection Administration, 'the pride of the national industry'.
In 1997 in the Taihu Lake basin, the Yangtze River basin to meet the standard 'zero action', Wuxi Hudong Mast Environmental Engineering Co., Ltd. cqj-type super-effective shallow air flotation water purifier played an important role. To this end, the China Paper Association on March 15-18, 1999 in Wuxi held a symposium to promote the Wuxi Hudong Mast Environmental Engineering Co. Then, the Jiangsu Provincial Government was held on March 21-25, 1999, the Yangtze River Basin and six provinces and one city in East China paper wastewater management work conference, which focuses on the introduction and promotion of Wuxi Hudong Mast Environmental Engineering Co. Ltd. in Wuxi, Taiwan to visit the site of sewage treatment. This shallow air flotation technology in the field of environmental protection has been rapidly promoted.
Wuxi Hudong Mast Environmental Engineering Co., Ltd. cqj-type super-effective shallow air flotation water purifier was named 1998 national new products, high-tech products. Now, the super-effective shallow air flotation water purifier sells well all over the country, especially in Guangzhou Paper Co., Henan Luohe silver pigeon paper, Shandong Linqing Galaxy Paper, Hunan Yueyang Paper, Hong Kong Lee & Man Paper, the Central and South Corporation of the Nine Dragons Paper, Taiwan Longda Rongcheng Paper, the Jinguang Group (app), Mudanjiang Hengfeng Paper, Jiaxing Minfeng Paper, Shandong Sun Paper, Shandong Chenming Paper and other thousands of enterprises to get Good use, generally high evaluation. Some products have been exported to foreign countries. At present, the product has become the paper industry white water recovery and wastewater treatment of ideal equipment. But Wuxi Hudong Mast Environmental Engineering Co., Ltd. is not satisfied with the status quo, in line with the 'progressive, and strive to develop advanced environmental protection products suitable for China's national conditions, for the benefit of future generations' purpose, and invested a lot of manpower and material resources, in-depth research and experiments, the cqj-type super-effective shallow air flotation water purifier has made a number of major improvements, and has now developed the sixth and seventh generation of ionic air-floatation products.
2. Adhere to scientific and technological innovation to achieve major technological breakthroughs
The principle of air flotation water purification is the introduction of a large number of tiny bubbles in the wastewater, bubbles through the role of surface tension adhering to the suspension, so that the overall density of the bubbles and suspensions is less than 1, the buoyant force under the action of the uplift to the water surface to realize the separation of solid-liquid, so as to make the wastewater purification.
Traditional air flotation due to structural defects in the design, the treatment capacity is very low, the wastewater in the air flotation retention time of 40 to 60 min, the equipment volume is very large, and the purification rate is very low.
The emergence of super-effective shallow air flotation water purifier is a major breakthrough in air flotation water purifier technology. It changes the static water inlet, dynamic water for dynamic water inlet, static water, the use of "zero speed" principle, so that the flotation body in a relatively static environment, vertical floating to the water surface, the upward journey to a minimum, and is not affected by the flow rate of the water. The theoretical depth of the pool is only about 450 mm, and the retention time of waste water in the air flotation is only about 3-5 min, which greatly reduces the volume of the equipment. In addition, the bubble distribution is uniform, there is no bubble dead zone, scraping device on the water body disturbance and other advantages, purification efficiency is greatly improved.
The successful development of CQJ-type ultra-effective shallow ionized air flotation water purifier is another major breakthrough in air flotation water purification technology, and make a qualitative leap. The product in the ultra-effective shallow air flotation on the basis of a number of major improvements, mainly the use of the company's own patented products - a special structure of high-efficiency dissolved gas device and high-efficiency integrated energy dissipation system, the dissolved gas rate to reach the theoretical maximum value and no concentration gradient.
The CQJ type super-effective shallow ionized air flotation water purifier not only has a removal rate of suspended solids as high as 99.8%, but also has been personally sampled by the famous water treatment experts of the Shanghai Design Institute of Light Industry, and has been tested by a number of authoritative institutions at the same time to verify that the removal rate of dissolved CODCr is as high as 10%-30%, which is evaluated by the experts as "ionized air flotation of the international leading level". ".
CQJ-type super-effective shallow ion flotation water purifier has another major advantage: due to the tiny diameter of the micro-bubbles, the density is very high, can fully capture the very small suspended solids, do not need to coalesce them into a large alum flower beforehand, so you can greatly reduce the amount of drugs, and some occasions may not even be added to the operation of the drug, thus significantly reducing the operating costs. In the biochemical treatment, can quickly improve the dissolved oxygen.
3. Challenge the traditional theory of the world problem
Wuxi Hudong Mast Environmental Engineering Co., Ltd. in the study of the releaser, first of all, to break the international traditional theory of the manufacture of the releaser. The traditional theory that the releaser is a decompression device, as long as the dissolved gas water suddenly decompression, can release micro-bubbles, the greater the pressure difference, the release of micro-bubbles will be smaller. However, research has shown that this understanding is far from adequate!
In fact, the complete dissipation of energy is crucial to the release of dissolved gas, which is exactly what the traditional theory ignores. At present, the international various releasers are unable to do a complete dissipation of energy, the exit flow rate are quite high, the dissolved gas release environment perturbation is intense. Wuxi Hudong Meister Environmental Engineering Co., Ltd. after a long time of research and repeated tests, developed a "high-efficiency integrated energy dissipation system", a better solution to the above problems. Wuxi Hudong Mast Environmental Engineering Co., Ltd. of the 6th generation of CQJ type series of super-effective shallow air flotation water purifier in the use of this "integrated energy dissipation system" to replace the traditional release after the desired results. After testing, the average diameter of the released micro-bubbles is only 1 to 7μm, and very uniform. According to the information, the international release of micro-bubbles generally between 50 to 100μm. That is to say, this improvement alone, under the condition of equal dissolved gas volume, the number or density of bubbles increased by at least 8000 times, while the total area of bubbles increased by at least 400 times!
In addition, Wuxi Hudong Mast Environmental Engineering Co., Ltd. scientific and technological personnel through the existing variety of dissolved air device research, successfully developed a unique structure of the new dissolved air tube, completely overcame the defects of the existing international variety of dissolved air device, only 3 s can make the dissolved air water dissolved air concentration to reach the theoretical maximum, greatly improving the efficiency of the dissolved air, so that the air dissolved in the water almost do not need to diffusion The process of air dissolution into the water almost does not need diffusion, thus speeding up the dissolution of air molecules, and completely eliminate the concentration gradient, the dissolved air efficiency increased by nearly one times.
The key to the high efficiency of shallow air flotation is the "zero velocity principle". Wuxi Hudong Mast Environmental Engineering Co., Ltd. of the 6th generation of CQJ series of ultra-effective shallow air flotation water purifier truly realize the "zero speed", and therefore in the same type, the same specifications of the product, its processing capacity is also the largest.
In short, Wuxi Hudong Mast Environmental Engineering Co., Ltd. of the 6th generation of CQJ-type series of super-effective shallow air flotation water purifier, due to its original proprietary technology, compared with similar products internationally, in the return ratio of the same case, the dissolved gas efficiency increased by nearly one times the number of bubbles or the density of bubbles and bubbles and the total area of the bubble have been greatly improved.
4 . Overcoming technical bottlenecks focusing on deinking wastewater
The introduction of the 7th generation of air flotation products, experienced the arduous process of denial, doubt, affirmation to praise, the new system is the first to break through the technical bottlenecks in the international arena, and entered the white water recycling system and CODCr decolorization of pulp middle wastewater project. DE company, the United States submerged Lee, Indonesia, such as the successful operation of the Golden Light and other enterprises. Small investment and big return has become a reality, and improve the quality of paper, won the customer's affirmation.
The 7th generation of air flotation products in the field of pulp water depth treatment has also shown high efficiency in decolorization and further reduce CODCr, can quickly increase dissolved oxygen, greatly improve the biochemical efficiency, has been successfully used in dozens of pulp enterprises in the middle of the depth of the water treatment, and get the customer's affirmation.
Because of the improvement of pulp and paper machinery and technological advances and water recycling efficiency, so that the paper machine tons of paper water consumption has been greatly reduced; in the total amount of pollutants did not have a large change in the premise of the wastewater load, pollutant concentration and water temperature has increased dramatically through the sedimentation, biochemical methods of treatment of wastewater has been very difficult to meet the requirements of the environmental protection. Wuxi Hudong Mast Environmental Engineering Co., Ltd. air flotation system can significantly increase the dissolved oxygen, to enhance the biochemical efficiency provides a guarantee.
In the treatment of waste paper deinking wastewater, the 7th generation of air flotation products also won a major breakthrough. Due to the alkaline deinking wastewater and high temperature, the dosage of polymerized aluminum chloride (PAC) is large, and the amount of hydrogen peroxide needs to be increased after the wastewater is reused, which increases the operating cost. The 7th generation of air flotation products to solve this problem, in the actual use of polyacrylamide (PAM) without or with a small amount of polyacrylamide (PAM) can play a very good effect, improve the quality of reuse of wastewater, operating costs have been reduced dramatically, and become the focal point of deinking wastewater treatment of the papermaking industry. Dozens of enterprises in the Guangzhou Paper Group, Lee & Man Group, Jindaxing, Jiangxi Chenming, Wuhan Chenming, Shouguang Chenming, Jilin Paper, Sun Paper, Shixian Bailu, Fujian South Paper Stock, Yue Paper Group, etc. run well, and highly praised by users.
Super-effective shallow air flotation technology has been ahead of the international level, which has been fully recognized by the industry, but Lu Yin Ming, general manager, said that Wuxi Hudong Mast Environmental Engineering Co.
5 environmental costs into the cost of creating a level playing field
When asked about China and the world's developed countries, compared to the paper industry, where the gap in environmental protection, Lu Yin Ming, general manager, frankly said: "The gap in environmental protection, I personally believe that the main gap is the ideological gap, in terms of hardware technology, the gap is not large. In my opinion, a considerable part of the enterprise still think pollution control is a helpless move, is the image of the project, only social benefits, no economic benefits. Even with complete facilities but subjectively do not pay attention to reduce operating costs caused by the sewage treatment system can not operate properly, and even stealing sewage. Some local protection resulting in unfair competition is also one of the reasons why environmental protection is considered a burden. If one day the cost of environmental protection governance is included in the cost of the product, fair competition, then there is no unit or individual again regarded as a burden of environmental protection governance, so that it is fair and reasonable."