The method of the liming liquors recycling for yak hide was studied to reduce the effluent of liming liquors and the dosages of chemical materials.
对牦牛皮浸灰废液的循环利用进行了研究，其目的是减少浸灰废液排放量，提高化工原料利用率。
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Several other materials can be used for liming purposes, such as, baked or burned oyster shells, marl, basic slag, wood ashes, and cement industry by-products.