A report from a pure water equipment manufacturer: "We will immediately solve the 'colored plate' wastewater caused by the printing and dyeing industry, and ensure that the effluent water is stable and qualified, which is what everyone was afraid of before." During an interview with Qunying Textile Printing and Dyeing High tech Comparison Co., Ltd. in the industrial zone of Suqian City, Jiangsu Province, the main person in charge exclaimed. So, how does this printing and dyeing company guarantee it? In 2011, due to the rapid development of Jinyuan Company, the load of sewage treatment stations in the supporting facilities of Suqian Industrial Zone was relatively limited, unable to accept the sewage discharged by many companies. Therefore, the industrial zone has raised the infiltration index value for the company and limited the company's sewage consumption. Qunying Printing and Dyeing Company is one of the limited companies, and the wastewater flow rate provided by the industrial zone to the company is only 2000 cubic meters per day, far lower than the specific wastewater consumption of 6000 cubic meters per day, causing Qunying Printing and Dyeing Company to be in a semi shutdown situation and causing great damage to the company. At a time when Qunying Printing and Dyeing Company faced numerous difficulties, a technology not only assisted Qunying Printing and Dyeing Company in achieving standardized wastewater treatment, but also carried out industrial wastewater treatment, further reducing the company's product costs. What is this technology? The journalist conducted an interview with curiosity.

A report from a pure water equipment manufacturer: "During the processing, Qunying Printing and Dyeing Company discharges a lot of printing and dyeing wastewater every day. However, if current organic chemical methods such as coagulants and decolorizers are simply used, not only will they not meet the direct discharge water quality testing standards of the industrial park, but the cost of solving the problem will also be too high. Therefore, starting from May 2011, Qunying Printing and Dyeing Company has selected SKL double catalytic high-efficiency and rapid wastewater treatment machinery equipment produced and manufactured by Shenreplicates Company. The key source of this technology comes from the patented invention of Shenreplicates Company called" Reactive Oxygen Pre Air Oxidation Laccase Deep Wastewater Treatment Method ".". Tian Baofeng, the CEO of Shen Reproduction Company, explained in detail that in the entire process of solving the wastewater of Qunying Printing and Dyeing Company, the company has selected a dual catalytic technology composed of dual catalytic type I and dual catalytic type II synergistic technologies. As a result, a stable qualification was achieved within 1-2 months. The original COD of the source water, which reached 500mg/L~800Mg/L, was reduced to 60mg/L~95mg/L after being solved, and the saturation of the source water was also reduced from 700 times to around 30-50 times, meeting the environmental protection standards of the industrial park sewage treatment station. The wastewater that has been solved can be directly discharged, and considering the current discharge volume of the company's overloaded production and manufacturing.

A report from a pure water equipment manufacturer: "In order to achieve different practical effects, the technical engineering project is divided into two phases. Tian Baofeng told reporters that this is only one phase of the SKL dual catalytic high-efficiency wastewater treatment technology application. This technology appropriately applies the basic principle of" organic chemistry+dual catalysis ", allowing printing and dyeing wastewater to first undergo organic chemistry (high-energy air flotation equipment) to remove the vast majority of suspended solids."; Further catalytic preparation treatment will be carried out to catalyze the dissolution of the vast majority of organic chemical air pollutants into small molecule water organic chemical air pollutants, ultimately disconnecting the molecular structure of organic compounds throughout the entire process of COD dissolution. Shen Reproduction Company assisted Qunying Printing and Dyeing Company in completing the direct discharge and fading of printing and dyeing wastewater in the first stage, without considering it. In the first phase of dual catalytic high-efficiency rapid wastewater treatment mechanical equipment, the biochemical control components were improved, reducing the COD of the effluent after biochemical treatment from the sewage treatment station to 12mg/L~25mg/L, and in addition, the saturation was also reduced to 10-20 times, promoting the effluent to fully meet the national first-class A standard (COD 60mg/L, saturation 40 times). The solved printing and dyeing wastewater has undergone coloring experiments in the printing and dyeing production workshop, and can be used as dark brown and light color coloring water. Qunying Printing and Dyeing Company's daily industrial wastewater treatment capacity has reached 1200 cubic meters. Mastering the production and manufacturing process of printing and dyeing requires the loss of various chemical raw materials. Some of the raw materials will be discharged along with the cleaning water and flushing water in the production and manufacturing process. The discharged sewage has high saturation, COD, BOD values, and also contains a certain amount of surfactants, resulting in serious environmental pollution.

A report from a pure water equipment manufacturer: "For the fading problem of printing and dyeing wastewater, Shenrepli Company has comprehensively considered various factors such as the actual fading effect, COD removal, and operating costs, and has developed and designed a dual catalytic technology. This technology can better reflect its unique advantages in the fading aspect. Ultrasonic catalysis has the ability to resist oxidation, photochemical, and biochemical hair color functional groups, and plastic COD has thermal cracking and catalytic chemical effects. It can fade high saturation wastewater from 10000 to 100000 times to 200-500 times, and then deeply fade to 20-80 times. In addition, dual catalytic technology can significantly reduce the concentration of COD and permanganate index, and COD can be reduced." 50mg/L~100mg/L, sludge load can reach 60%~90%, and it can handle the problems of incomplete fading of basic decolorizing agents and high cost of difficult to reduce COD. The cost of one ton of sewage treatment is only 0.5-2.5 yuan. In addition, the dual catalytic technology not only has excellent practical solutions for deep wastewater treatment, but also has the function of a highway bridge between basic organic chemical preparation treatment and biochemical solution in the treatment of high concentration and high toxic side effect wastewater.

A report from a pure water equipment manufacturer: "According to statistics, the COD concentration of the source water for deep sewage treatment is generally between 150mg/L and 250mg/L. However, the COD concentration range of the source water for deep treatment using dual catalytic technology can be increased to 150mg/L to 100mg/L. Its ability to solve high loads, solve high efficiency, and resist fluctuations has been demonstrated. So, what ecological benefits can be generated by using" SKL dual catalytic high-efficiency wastewater treatment technology "?"? Tian Baofeng used Qunying Printing and Dyeing Company as an example to calculate for journalists. Based on a water flow rate of 340 days per year and a daily solution of 6000 cubic meters, using this technology can save 4.2 tons of COD per day and achieve 1428 tons of COD per year. Completing industrial wastewater treatment can save 1200 cubic meters of water per day. In addition, the toxic side effects caused by the dual catalytic technology have been significantly reduced, and the biodegradability of the sludge has also been improved.

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