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The whole-process control technology of ammonia pollution in tungsten and molybdenum metallurgy is a good news for tungsten and molybdenum enterprises

The whole-process control technology of ammonia pollution in tungsten and molybdenum metallurgy is a good news for tungsten and molybdenum enterprises.

The project team solved the problem of reuse of ammonia resources in the cooperation project with jiang tungsten, and realized the source reduction of low-concentration ammonia nitrogen wastewater and synchronous treatment of wastewater and exhaust gas. The whole process water consumption is reduced by 26%, ammonia consumption by 50% and energy consumption by 60%. While the new cleaning process improves the level of environmental protection treatment, the environmental protection treatment cost per ton of products is reduced by 100-300 yuan compared with the traditional process. In the cooperation project with haisheng tungsten and molybdenum, the whole process water consumption is reduced by 53% and ammonia consumption is reduced by 40%.In the cooperation project with jinduicheng molybdenum industry chemical company, according to the ammonia precipitation process of ammonium molybdate, volatile ammonia gas and mother liquor containing ammonia in acid precipitation were determined to be the main sources of ammonia nitrogen pollution according to the analysis results of pollution sources. The ammonia consumption can be reduced by 30% while the emission of ammonia nitrogen reaches the standard.

Many smelters have the idea to achieve cleaner production, but are either unable or unwilling to take risks. "Our advantage is that we can integrate environmental protection and production design to achieve whole-process pollution control by starting from the production link, reducing emissions at the production source and recycling waste."

Environmental protection and industrial production need to be considered from a higher dimension. The original production cost was lower than that of the other company, but now it is lower than that of the other company including the comprehensive cost of environmental treatment. And now technology can make a ton of products control in a few hundred yuan of pollution treatment costs, and the cost of terminal treatment may reach thousands of yuan.

"We hope to promote this technology, so that the concept of clean production in all walks of life in cooperation, to contribute to environmental protection, to achieve economic and environmental benefits double harvest. In this way, our technology can be more demonstrative and practical.
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