脱色率

本文运用超重力均相催化臭氧化方法处理酸性红B模拟染料废水，考察了影响脱色率的几个主要因素，得出了适宜的操作条件。

This work investigated homogeneous catalytic ozonation of simulated Acid Red B wastewater in a rotating packed bed ( RPB ) . Several main factors which affected the decolorization were discussed and appropriate operating conditions were proposed .

实验表明，脱色率随着旋转床转速和气体流量的增加而增加，随着液体流量和酸性红B溶液初始浓度的增加而减小，碱性条件有利于O3单独降解酸性红B。

The results showed that the decolorization increased with the increase of rotating speed and gas flow rate . The decolorization decreased with the increase of liquid flow rate and initial concentration of Acid Red B. Alkaline environment is favorable for O3 degradation .

以甲基橙溶液模拟偶氮染料废水，探讨了在微波作用下，低浓度的甲基橙浓度、过氧化氢用量、溶液pH值、作用时间等因素对脱色率的影响。

Microwave assisted wet hydrogen peroxide oxidation method was used to treat azo dyes wastewater simulated by low concentration methyl orange .

在优化条件下，采用悬浮态TiO2时，染料的脱色率为98%。

Over 98 % degradation by suspended TiO 2 are observed under optimal conditions .

并讨论其脱色率、COD去除率及其机理。

The discoloration and COD removal rates of the treated water and its mechanism were discussed .

再生利用两次后，损失率为2%，光催化降解罗丹明B的脱色率为90.56%；

In addition , the decoloring rate of catalysis degrading Rhodamine B is 90.56 % and the losing rate is 2 % , after regenerated 2 times ;

研究废水初始浓度、催化剂投加量、废水初始pH值以及氧化助剂H2O2投加量，对降解脱色率的影响。

The effects of azo dye initial concentration , dosage of catalyst , solution pH and H_2O_2quantity were discussed .

考察了甲基橙初始浓度、催化剂加投量、pH值、温度、光照强度、反应液体积等因素对脱色率的影响。

The effect of initial concentration of methyl orange , quantity of catalyst , pH value , temperature , light intensity and liquid volume were studied .

介体HBT的加入对所有染料的脱色率都有显著的提高。

With the addition of HBT , decolorization rate increased significantly .

生产实验中污水COD去除率为70%～90%，脱色率可达96%。

In production trial , COD removal and discoloration rates were 70 % ~ 90 % and 96 % respectively .

活化粉煤灰用于实际印染工业废水处理，脱色率和COD去除率同样较高。

In practical treatment of textile effluent by activated fly ash , the decolorization and COD removal are also effective .

PAM阳离子度为50%时，脱色率可达到90%以上，过多的阳离子会导致胶体颗粒重新稳定。

When the concentration of cation is 50 % , the decoloration rate is over 90 % .

加入Fe3+，H2O2等其他物质可提高染料的脱色率。

Adding Fe ~ ( 3 + ), H_2O_2 and other catalyst can improve the decoloration rate greatly .

反应后期pH基本不变；产品对活性大红溶液的净水处理结果较为满意，脱色率98.8%，COD的去除率为92%。

The product showed satisfactory results on removal of COD ( 92 % ) and decolourization of reactive brilliant red in water ( 98.8 % ) .

结果表明以二氧化钛为光催化氧化剂直接处理分散大红RR染料，脱色率可达93%。

The results showed that the treatment effect of scarlet dyestuff could reach 93 % .

结果表明，降解2h脱色率为91.7%。

The discoloring ratio of acid fuchsine can be as high as 91.7 % in 2 hours degradation .

应用固定化细胞连续处理酸性红B溶液，当进水浓度为42.1ppm时，出水平均脱色率可达87%。

An immobilized cell column has been used for continuous treatment of an acid red B solution for 14 days , with an influent concentration of 42.1 ppm , the average removability was 87 % .

以脱色率为主要考察指标，研究了纳米TiO2光催化氧化法处理三苯甲烷染料碱性紫5BN的最佳工艺条件。

The optimal processing conditions of photocatalytic oxidation in treating Methyl Violet 5BN by nano TiO_2 has been studied .

印染废水通过铁屑滤床后，脱色率和COD去除率分别达95%和90%以上。

If dyeing-house waste water passes through iron chips filter , over 95 % and 90 % of co-lout and COD may be removed respectively .

用脱色率及COD去除率对催化剂进行了性能评价，以XRD、IR及比表面积对样品进行了表征。

The capability of catalyst was evaluated by decolor rate and COD removal rate . The samples was described by XRD 、 IR and specific surface area .

研究了pH值，反应温度，反应时间等因素对甲基橙脱色率的影响，确定了适宜的反应条件，同时确定了催化滤料再生方法。

The influence of pH value , reaction temperature , reaction time etc. factors on decolorization rate of methyl orange was studied to determine suitable reaction condition and regeneration method of catalytic filter material .

高压脉冲放电协同臭氧氧化与臭氧氧化相比，脱色率提高了约10%，COD去除率提高了15.2%。

Compared with single ozonation , the combination of it with high-voltage pulsed discharge can increase 10 % of decoloration efficiency and 15.2 % of COD removal efficiency .

水解酸化池&膜生物反应器处理后废水的脱色率和COD去除率分别为83%和97%；

After treated in the hydrolysis acidification pool and membrane bioreactor , the chroma and COD removal rate of the wastewater is 83 % and 97 % respsctively ;

加入自由基捕获剂Na2CO3，使COD去除率明显下降，但脱色率变化不大。

The addition of radical scavenger Na_2CO_3 greatly decreases the COD removal efficiency , but the decoloration efficiency remains unchanged .

在β-MnO2纳米棒、Mn2O3纳米棒、Mn3O4纳米粒子为催化剂条件下，分别研究了亚甲基蓝初始浓度、H2O2浓度、催化剂用量对亚甲基蓝脱色率的影响。

The influences of reaction conditions such as initial concentration of methylene blue , H2O_2 concentration and catalyst dosage on the decoloration efficiency of methylene blue are studied .

TiO2的投加量对AO7溶液脱色率影响较大。

The quantity of TiO2 adding to the reactor affected decolour efficiency greatly .

同时做了TiO2回收试验，结果表明，TiO2催化性能比较稳定，可重复使用，且脱色率及COD去除率较高。

At the same time , the recycling experiment of titania suggested that titania has higher COD_ ( Cr ) removal rate and decolor rate , and also be reused .

结果表明，所制备的两性聚合物，对皮革染色废水的脱色率达92%以上。常温（25℃）条件下，合成产物对皮革染色废水脱色的较佳pH值为3～4。

The experimental results indicated that the polyampholyte flocculant exhibited an excellent properties in leather dyeing wastewater , with a decolorization ratio of 92 % under pH value of 3 & 4 and temperature at 25 ℃ .

分别讨论不同氧化工艺、H2O2投加量和反应时间、pH值、废水的初始浓度对脱色率的影响。

The influence of different oxidation processing , added amount and reaction time-period of H2O2 , its pH-value , and initial concentration of wastewater on the decolorizing rate was discussed , respectively .

在太阳光下，分别以TiO2和累托石-TiO2为催化剂降解甲基橙溶液6h，甲基橙的脱色率分别为62.9%和87.6%。

The methyl orange decolorization reached 62.9 % and 87.6 % respectively by TiO_2 and rectorite-TiO_2 photocatalytic degradation of methyl orange solution under solar light for 6 h.