Copper and zinc in sludge extract were removed by improved ferrite coprecipitation process using lime milk as neutralization reagent.
采用改进铁氧体共沉淀法，用石灰乳溶液作中和剂，从污泥浸出液中去除铜、锌。
The composite starch is rich in active calcium, zinc, copper, ferrite and other trace amounts, effectively improves the nutrient components of starch and is beneficial to the absorption by human body.
本发明所制备的复合淀粉富含活性钙、锌、铜、铁等微量，有效地提高了淀粉的营养成分，有利于人体吸收。
The composite starch is rich in active calcium, zinc, copper, ferrite and other trace amounts, effectively improves the nutrient components of starch and is beneficial to the absorption by human body.
本发明所制备的复合淀粉富含活性钙、锌、铜、铁等微量，有效地提高了淀粉的营养成分，有利于人体吸收。
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