摘要:世界造纸工业的用水量仅次于金属和化学工业,为第吹冰大污染源。而我国造纸工业污染量更是居十大工业之首,造纸废水因其处理过程中的工序,会造成较高色度,若随意排入水中会引起水体景观的色度加深,造成水中的透光困难,不但影响水体美观度,更易影响水中动植物的生存,因此我国的行业标准对其有较为具体的要求。本论文研究目标,讨论废水处理过程中色度的变化机理,并研究各种方案对某指定企业造纸废水进行处理后的色度去除效果,具体方案依次为次氯酸钠氧化法,臭氧深度氧化法,聚合氯化铝混凝法。并在实验结束后比较各种方案间色度去除率,同时考虑其在实际工业中的经济可行性。6688
关键词: 色度去除率;臭氧氧化;聚合氯化铝;次氯酸钠
The mechanism of the chroma change in the wastewater treatment process and the study of color removal
Abstract:World paper industry water behind metal and chemical industries, as the sixth largest source of pollution. And China's paper industry is the amount of pollution ranks first in the top ten industries, papermaking wastewater treatment process because of its process, it will result in higher chroma, if freely into the water will cause the water landscape chromaticity deepen, causing water penetration light difficulties, not only affect the water body aesthetics, easier to affect the survival of plants and animals in water, so the industry standard for their country have more specific requirements. Goal of this thesis to discuss the wastewater treatment process chromaticity change mechanism, and to study the various options for a given enterprise papermaking wastewater color removal after effects, specific programs were sodium hypochlorite oxidation, ozone advanced oxidation, polymerization aluminum chloride coagulation. And end of the experiment comparing color removal among the various programs, taking into account their actual economic viability of the industry.
KeyWords:Color removal;ozone oxidation;PAC;sodium hypochlorite
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