...COD去除率；资源化利用；清洁生产 [gap=781]Key words： diosgenin production； treatment technology of wastewater； the COD removal rate； resource utilization； clean production ..
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It was shown that the COD removal rate of sodium bentonite is 38.
膨润土应用于城市污水的吸附研究结果表明：膨润土原矿对废水中COD去除率为38。
The process ensures that the COD removal rate, the ammonia nitrogen removal rate and the wastewater removal rate of the wastewater treatment process are improved greatly.
本发明处理废水过程的COD去除率和氨氮去除率、废水回收率都得到很大的提高。
The results show that cell voltage and initial COD of the wastewater have the biggest effect on the COD removal rate. But the effect of electrolysis on electro-catalytic oxidation is not remarkable.
研究发现，槽电压和废水初始COD对COD去除率的影响最大，而电解质的加入对电催化氧化影响不显著。
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