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Tea dregs can be used for wastewater treatment, turning waste into treasure and being more eco-friendly

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Besides deodorizing and serving as fertilizer, tea dregs can also be used to treat wastewater! Weng Zhihuang, a professor at I-Shou University in Taiwan, China, discovered that tea dregs can effectively adsorb heavy metals such as hexavalent chromium in sewage, making them a cheap and effective bio-adsorbent. In experiments, Weng Zhihuang found that by repeatedly steaming and washing tea leaves with a pressure cooker and deionized water to remove organic acids from the tea, then drying and grinding them into powder, wastewater can be treated. The maximum adsorption capacity of black tea leaf powder reaches as high as 117 mg/g, making it more effective than traditional chemical treatment agents, and

Besides deodorizing and serving as fertilizer, tea dregs can also be used to treat wastewater! Weng Zhihuang, a professor at I-Shou University in Taiwan, China, discovered that tea dregs can effectively adsorb heavy metals such as hexavalent chromium in sewage, making them a cheap and effective bio-adsorbent.

In experiments, Weng Zhihuang found that by repeatedly steaming and washing tea leaves with a pressure cooker and deionized water to remove organic acids from the tea, then drying and grinding them into powder, wastewater can be treated.

The maximum adsorption capacity of black tea leaf powder reaches as high as 117 mg/g, making it more effective than traditional chemical treatment agents, and even better than ordinary commercial activated carbon and nano adsorption materials. Weng Zhihuang said that tea dregs have multiple advantages and are a "star material" for future wastewater treatment.

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