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1£® Treat papermaking black liquid with sulphite
This kind of technology that our company research and develop by oneself is one breakthrough of papermaking black liquid treatment technology. It has already been applied successfully and made satisfactory result. The benefit is that the paper mill can be made into binder, water-reducing agent, petroleum auxiliary while controlling pollution, which can obtain considerable economic benefits¡¡¡.
2. Sewage treatment with the environmental protection microorganism
We have researched and developed the microbial fungus for environmental protection by ourselves in the last years. It can be used in treatment of the municipal sewage, the industrial sewage, filtrate of rubbish and managing of the pollution of pond cultivate water , cityscape water and small basin water , etc. This technology is new and advanced in our country, which have been popularized in the developed country since the 20th century. Its main characteristic lie with that it can be used simply and conveniently, safely and high-efficiently, no secondary pollution to environment.
3. Sewage treatment during monosodium glutamate production
During monosodium glutamate production it will discharge two kinds of waste water of high density and low density. High density waste water contains a large amount of SO 4 2- ion and NH 4 + ion, which suppresses the living beings to grow, so the result is bad using microorganism. We take the method to control high density waste water and low density waste water respectively. We use CIR concentration method to make high density waste water into compound fertilizer and fungus albumen and use biochemical method to deal with low density waste water. This kind of technology has not merely reduced the difficulty of treating the waste water, but also reduced the expenses of operating greatly, which will produce great economic benefits.
4. CIR concentration method to deal with high density nitrobenzene and aniline organic waste water
CIR concentration method, which was developed by our company, is one kind of technology to deal with high density nitrobenzene and aniline organic waste water. This technology has already passed the scientific and technical assessment of the Hebei province and has application in Cangzhou Dahua TDI Co., Ltd. and Shandong Juli prussic acid Co., Ltd. Successfully.
5. Technology of catalyzing and oxidizing for organic waste water including trimethylbenzene or 2- ethyl anthraquinone
This method is simple to manipulate, easy to manage, with low cost of operation and can run steadily in succession for a long time, especially suitable for dealing with pollutant of high colour or including benzene which are difficult to disposal.
6. Technology to deal with the waste water including heavy metal
Waste water produced in the plant of metal processing, battery, circuit board, plating etc. contains large amount of heavy metal, such as chromium , cadmium , nickel , copper , zinc. If it is discharged directly without treatment, it will cause polluting to the water body seriously. We adopt particular flocculates technology to deal with this kind of waste water. The result can be up to the national discharge standard. This craft is operated simply, runs steadily and has already succeeded in getting application in Henan Huanyu Power Limited Company, Henan Yellow River Whirlwind Joint-stock Limited Company and Far East Circuit Board Co.Ltd..
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