A waste alkaline liquor produced in the process of oil refining contains high concentration sodium sulphide and mercaptan sodium etc, which needs treatment before its neutralization.
Laboratory results of the treatment of pulping black liquor, washing and bleaching waste water of a mill producing bleached kraft reed pulp were presented.
讨论了漂白硫酸盐苇浆厂制浆黑液和中段废水的实验室处理结果。
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The method can reduce the treatment cost, effectively utilizes the resources of the water liquor, and prepare the organic fertilizer by utilizing the amino-nitrile waste liquor.