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首页> 外文期刊>紙パ技協誌 >Wastewater Treatment Technology for Small Scale Pulp and Paper Mills in Thailand (Part 3) -Photo-catalytic Oxidation Treatment of Wastewater from Pulp and Paper Mills in Thailand-
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Wastewater Treatment Technology for Small Scale Pulp and Paper Mills in Thailand (Part 3) -Photo-catalytic Oxidation Treatment of Wastewater from Pulp and Paper Mills in Thailand-

机译：泰国小型纸浆和造纸厂的废水处理技术（第3部分）-泰国纸浆和造纸厂的废水的光催化氧化处理-

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The authors surveyed the present status of wastewater treatment in several handmade paper mills in Thailand. The quality of wastewater, it was made clear that the COD and color improved considerably by combined treatment of anaerobic process with aerobic one. Ozone oxidation under UV irradiation improved water quality more rapidly than ozone treatment alone (Part 1 and Part 2).In the present study, the authors carried out TiO_2 photo-catalytic oxidation under artificial UV lamp or solar light as light sources. Wastewater sample which contained organic substances as COD 100 mg/L and colored in pale brown was collected from final aerobic ponds in small pulp and paper mills. UV irradiation (artificial UV light or solar light) with TiO_2 catalyst decreased COD more rapidly and eliminated color more effectively than UV treatment alone. the deceleration degree of dyestuff gave extremely excellent results by TiO_2 photo--catalytic oxidation using UV lamp or solar light.In conclusion, it was suggested that organic compounds given as COD and color caused by dyestuff in wastewater can be decomposed by biological treatment of combined anaerobic-aerobic process, followed by TiO_2 photo-catalytic oxidation treatment under artificial UV light or solar light in relatively short time. This is a kind of non-chemical process in wastewater treatment.
机译：作者调查了泰国几家手工造纸厂废水处理的现状。废水的质量很明显，通过厌氧工艺与好氧工艺的组合处理，COD和颜色显着提高。紫外线辐照下的臭氧氧化比单独进行臭氧处理更快地改善水质（第1部分和第2部分）。在本研究中，作者在人造UV灯或太阳光作为光源下进行了TiO_2光催化氧化。从小型制浆造纸厂的最终好氧池中收集了废水中有机物的化学需氧量（COD）为100 mg / L，颜色为浅棕色。与单独的紫外线处理相比，用TiO_2催化剂进行的紫外线照射（人造紫外线或太阳光）可以更快地降低COD并更有效地消除颜色。紫外光或日光照射下的TiO_2光催化氧化使染料的减速度得到了极好的结果。综上所述，废水的化学处理可将有机物分解为化学需氧量和颜色而产生的染料，可以通过联合处理进行生物分解。厌氧-好氧工艺，然后在较短的时间内在人造紫外线或太阳光下进行TiO_2光催化氧化处理。这是废水处理中的一种非化学过程。

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