spent acid

基本解释

Reserch Progress in Comprehensive Utilization of Spent Acid and Waste Water in Titanium Dioxide Production;
介绍了目前国内外钛白废酸、废水的利用与治理技术。
In conventional acidizing to low permeability reservoir, the formation will be damaged again owing to the unthorough flowback of the spent acid, so foamed acid has been used.
针对应用常规酸化技术对低渗油层进行改造时，由于返排不彻底对其造成二次污染，故建议使用泡沫酸。
The gel breaking experiments show that the gel breaker in variable-viscosity acid highly contacted with spent acid in the high shear rate contribute to the swift and complete gel breaking.
在高剪切速率下，变黏酸中的破胶剂能与残酸充分接触，使其能够快速、完全的破胶；
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