Tea dregs can treat wastewater.
Besides deodorizing and being fertilizer, tea dregs can also be used to treat wastewater! Weng Chih-huang, a professor at Taiwan's Yishou University, found that tea residue can effectively adsorb heavy metals such as hexavalent chromium in sewage, making it a cheap and effective biosorbent.
Weng Zhihuang found in the experiment that the waste water can be treated by repeatedly steaming tea leaves in a pressure cooker and deionized water to remove organic acids from tea leaves and then drying and grinding.
The maximum adsorption capacity of black tea powder is as high as 117 mg/g, which is more effective than traditional chemical treatment agents, and even better than general commercial activated carbon and nano-adsorption materials. Weng Zhihuang said that tea residue has many advantages and is a "star material" for wastewater treatment in the future.
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General Junfeng "Zhaoping Maojian" tea
The raw materials of Zhaoping maojian are collected from the alpine tea garden in Zhaoping brain Mountain. The tea garden was designated as a nature reserve by the forestry authorities in the 1970s, with overlapping peaks, undulating hills, dense forests, towering ancient trees, vertical and horizontal streams, and pure and fresh air. Zhaoping maojian selects high-quality fresh leaves of improved varieties of tea, refined by traditional tea-making technology combined with modern processing technology, with tight appearance, white hairs, green and glossy color, long-lasting fragrance, clear and bright soup color and taste.
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Variety of tea: Biyun
It belongs to asexual reproduction system. It is a national improved breed. It is selected by Tea Research Institute of Chinese Academy of Agricultural Sciences. There are 12 provinces introduced. Morphological features: small tree type, middle leaf, middle bud species. The tree is erect and the branches are high. Spring buds germinate from late March to early April. In the middle of April, one bud and three leaves are in full bloom, and 100 buds weigh 51.7 grams. The bud leaves are green and hairy. The production of famous green tea is characterized by tight strings, emerald green color, high aroma and mellow taste. The quality characteristics of fresh leaves of spring tea with one bud and two leaves: tea polyphenols 17.1%, amino acids 3.4%.
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