The tea extract which has been treated with tannase is subsequently subjected to an ultra-filtration treatment.
随后，用丹宁酶处理过的茶叶提取物要经过超过滤处理。
2
The principles and characteristics of micro-filtration, ultra-filtration and reverse osmosis and their applications on oily wastewater were introduced.
介绍了微滤、超滤和反渗透膜等膜分离技术的特点及它们在含油废水中的应用。
3
The principles arid characteristics of micro-filtration, ultra-filtration and reverse osmosis and their applications on oily wastewater were introduced.