Green development into the first task of titanium dioxide industry
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Fu Xiangsheng, vice president of the China Petrochemical Federation, pointed out at the meeting that the current green development task of the titanium dioxide industry is arduous, and the problems of wastewater and waste residue are more serious than other industries.
Sun Peng, chairman of the China Coatings Industry Association Titanium Dioxide Branch, believes that the titanium dioxide industry has a large energy consumption and a large amount of waste by-products, and the sustainable development is facing severe challenges. How to accelerate environmental governance, change the image, and coordinate the relationship between industry development and environmental protection is the primary challenge for the survival and development of enterprises.
Sun Peng said that at present, the resource energy consumption and “three wastes†emissions of the titanium dioxide industry are still large, and the pollution prevention and control problems such as high-salt wastewater and titanium gypsum treatment need to be solved urgently. At the same time, the country has not issued pollution discharge standards for the titanium dioxide industry. And the industry access conditions, the problem of restricting the green development of the industry is still outstanding. Advancing the green development approach has become an important goal and key task of the new era industry. “The whole industry must increase investment and innovation in the “three wastes†disposal, energy conservation, low carbon and green development, and accelerate the transformation of the green development mode of the whole industry.†Sun Peng said.
It is gratifying to note that the titanium dioxide industry in these years has also been continuously innovating and making progress, and has achieved good results and great progress in solving waste slag, wastewater, and comprehensive utilization of resources.
It is reported that the Shandong Lubei Enterprise Group Corporation has developed step by step from a workshop-scale small factory. It is through innovation, through the development of circular economy and comprehensive utilization of resources. Today, waste acid and waste residue are all recovered. And use, to become the world's largest industrial gypsum and waste sulfuric acid treatment production enterprises.
Fu Xiangsheng said: "Green development is an inevitable choice for the petrochemical industry and an inevitable choice for the titanium dioxide industry. Lubei Group uses the circular economy technology of titanium, sulfur, phosphorus, calcium and lithium to crack the long-term development of the titanium dioxide industry. High pollution and high energy consumption problems, the waste sulfuric acid, titanium gypsum, green slag waste residue resources are utilized, and the production of sulfuric acid, cement, lithium battery new materials and high-efficiency water purifying agent realizes the zero emission of the sulfuric acid method titanium white industry. ', contributed Lubei wisdom and Lubei plan for the whole industry."
Sun Peng also said that Dongjia's membrane washing, Longyan Lilian's gypsum bricks and high-salt wastewater treatment have all explored new ways for the industry to accelerate waste management and achieve transformation and upgrading.
According to Fu Yijiang, deputy secretary-general of the Titanium Dioxide Branch of the China National Coatings Industry Association, there are many technical improvements in the titanium dioxide industry that are currently in clean production, energy conservation and emission reduction. For example, Ningbo Xinfu Titanium and Zhonglu Yiyuan Environmental Protection Co., Ltd., the first set of BOT membrane treatment acid wastewater comprehensive treatment project in the national titanium dioxide industry has been completed and put into operation. The 72-hour continuous operation test showed that the wastewater recycling rate of the project reached 90%, the waste acid recovery rate was 87%, and the wastewater emission reduction reached more than 90%. In addition, the Henan Tanlilian denitrification titanium dioxide ammonium sulfate wastewater membrane treatment water recycling project recently test acceptance; Shandong Daon titanium white extraction separation titanium white waste liquid recycling project succeeded; Shandong Dongjia, Ningbo Xinfu and other enterprises and The cooperation of Zhonglu Yiyuan Co., Ltd. successfully applied the MVR acidic aqueous solution evaporation and concentration technology, and the energy saving effect was obvious.
Fu Xiangsheng suggested that the titanium dioxide industry should profoundly understand the requirements of the “Petrochemical Industry Green Development Action Plan†and the “six special action plansâ€, implement the two development strategies of innovation drive and green development, accelerate the transformation and upgrading of the titanium dioxide industry, and promote titanium. The white powder industry is moving towards a new stage of high quality development.