废酸，又称废硫酸，在工业生产中，废酸或产生于有机物的硝化、酯化、磺化、烷基化、催化和气体干燥等过程，或产生于钛白粉生产、钢铁酸洗和气体干燥等过程。
盐酸废酸循环制备活性白土工艺研究 关键词：膨润土；废酸；活性白土；脱色率 [gap=4401]Keywords：bentonite；waste acid；actived clay；decoloring ratio
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...学版、英文版） 关键字: 湿法炼锌；废酸；数学模型；变论域模糊专家规则[gap=1499]Key words: zinc hydrometallurgy; spent acid; mathematical model; variable universe fuzzy expert rule...
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Then takes As, benzene, parathion and waste acid as the examples to calculated their risk degrees.
再以砷，苯，对硫磷和废酸四种有害物质为例，根据其各项评价指标的风险度，计算得出它们各自的最终风险等级。
参考来源 - 危险废物风险评估体系及管理模式的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
实验表明该法处理废酸的效果良好，并具有操作简单、无二次污染和经济效益好等优点。
Experimental results have shown that this method can treat waste acid effectively, and has the advantages of easy operation, no secondary pollution and good economic benefit.
试验表明：该法处理废酸的效果良好，并具有操作简单、无二次污染和经济效益好等优点。
Test shows that the waste acid treatment with the calcining process has the advantages of good result, simple operation, no secondary pollution, better economic benefit and so on.
采用稀酸套洗工艺代替传统的加水稀释洗涤工艺，成功地解决了阳离子交换树脂生产中废酸的回收利用问题。
The waste acid from the manufacture of cation exchange resin can be successfully recovered and reused by a new washing process with dilute acid instead of traditional washing process with water.
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