Has the membrane-based recovery of acidic wastewater from titanium dioxide produced by the sulfuric acid method been successful?
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It is said that the device did not function properly later on; anyone who is aware of the situation, please share your insights. The first BOT membrane-based treatment project in China’s titanium dioxide industry for the comprehensive treatment of acidic wastewater, carried out in collaboration between Ningbo Xinfu Titanium Dioxide and Zhonglü Yiyuan Environmental Protection, has been completed and put into operation. The 72-hour continuous operation test showed that the wastewater recycling rate for this project reached 90%, the recycled rate of waste acid was 87%, and the reduction in wastewater discharge exceeded 90%. In addition, the membrane treatment and water recycling project for nitration removal, titanium dioxide production, and ammonium sulfate wastewater in Henan Bailianlian was recently accepted following trial operation ； The project for the recycling of titanium dioxide wastewater through extraction using the Shandong Daon TiO2 method has been successful ； Companies such as Shandong Dongjia and Ningbo Xinfu have collaborated with Zhonglu Yiyuan Company to successfully apply MVR evaporation and concentration technology for acidic aqueous solutions, achieving significant energy savings.
If the problem of membrane fouling during long-term operation isn’t resolved, everything will be in vain.
I really want to verify this rumor. I spoke with a membrane supplier today, and when the topic of the Ningbo Xinfu project came up, he said to me, \"The membranes will break down in just three months,\" which really scared me. It’s been two years since the Xinfu project started. I understood before that there were no membrane-related issues, so what’s happening now?
Why not doubt that the supplier was just talking casually?