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首页> 外文期刊>Indian Journal of Chemical Technology >Performance studies no novel solar photocatalytic reactors for decolourisation of textile dyeing wastewaters
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Performance studies no novel solar photocatalytic reactors for decolourisation of textile dyeing wastewaters

机译：性能研究没有新型的用于纺织印染废水脱色的太阳能光催化反应器

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Two 'Water Fountain Solar Photocatalytic Reactors' of trapezoidal and circualr configurations without any ultraviolet (UV) transparent walls were developed and the practical applicability of the reactors for solar photocatalytic decolourisation of textile dyeing wastewaters was proved for the first time.The photocatalytic reactors were operared in batch mode for 3 h so as to study the influence of operating variables viz,liquid volume,constant liquid depth and solar ultraviolet light intensity.The studies were carried out using simulated rinse wastewaters prepared with red dye having concentration of 40 mg/L.A catalyst dosage of 1.0 g/L was adopted and the samples were collected at 15 min interval for analysis of colour.For each study on photocatalytic decolourisation,the kinetic rate equation was arrived,from which the reaction time (i.e.the time taken for 90% decolorusation) was derived and it was used to compare the influence of operating variables.The reaction time was less than 3 h for liquid ovlumes upto 16 L and thereafter,it increased up to 7 h.The performance of the reactors was not uniform with similar liquid depths.The influence of solar UV light intensity on the performance of the reactor was found to be significant.The scale-up of the water fountain solar photoreactors is simple and also economical as expensive and fragile UV transparent walls are not necessary.
机译：开发了两个梯形和圆形结构的``喷泉太阳能光催化反应器''，这些反应器没有任何紫外线（UV）透明壁，并且首次证明了该反应器对纺织品染色废水进行太阳能光催化脱色的实际应用性。以分批模式运行3小时，以研究操作变量即液体体积，恒定液体深度和太阳紫外线强度的影响。该研究是使用模拟漂洗废水进行的，该废水由浓度为40 mg / LA的红色染料制备用量为1.0 g / L，每隔15分钟收集一次样品进行颜色分析。对于每一次光催化脱色研究，都得出了动力学速率方程，从中得出反应时间（即90％脱色所花费的时间）得出），用于比较操作变量的影响，反应时间小于3对于16升以下的液体卵子，其反应时间为h，随后增加至7 h。在相似的液体深度下，反应器的性能并不均匀。发现太阳紫外线强度对反应器性能的影响很大。由于不需要昂贵且易碎的紫外线透明壁，因此喷泉式太阳能光反应器的放大既简单又经济。

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