DOC《5000帧鞠恧？》

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guandang.net/ 5000吨印染废水处理工艺 本文档下载自文档下载网,内容可能不完整,您可以点击以下网址继续阅读或下载: http://doc.guandang.net/b72ba1b2156db091cd1ac788a.html 本设计中,污水处理规模为日处理生产废水5000m3/d,出水水质达到《纺织染整工业水污染物排放标准》(DB 32/670-2004)中规定的排放的要求. 印染废水具有色度高,COD、BOD含量高,成分复杂,水质、水量变化剧烈等特点.因为印染废水属于难降解的废水,所以本设计采用水解酸化提高废水的可生化性.经过方案比选,本设计采用水解酸化- 接触氧化- 混凝工艺,其处理效果明显优于传统工艺 摘要本设计中,污水处理规模为日处理生产废水5000m3/d,进水水质:COD为900mg/L,BOD为250mg/L , SS为180mg/L,色度为400度,pH为6,NH3-N为30mg/L.出水水质达到《纺织染整工业水污染物排放标准》(DB 32/670-2004)中规定的排放的要求,即COD≤100mg/L,BOD≤25mg/L,SS≤70mg/L,色度≤40度,pH为6~9,NH3-N≤15mg/L. 印染废水具有色度高,COD、BOD含量高,成分复杂,水质、水量变化剧烈等特点.因为印染废水属于难降解的废水,所以本设计采用水解酸化提高废水的可生化性.经过方案比选,本设计采用水解酸化- 接触氧化- 混凝工艺,其处理效果明显优于传统工艺,对BOD、COD、SS有很好的处理效果,并具有能耗低、产泥量少的特点,且剩余污泥可直接脱水.沉淀池后设置混凝沉淀池,作为三级处理,可获得较好的出水水质,使废水达标排放. 经技术经济分析,此方案投资总额 116万元,废水处理成本为0.64元/m3,有着良好的经济效益和社会效益.且节约用地、提高绿化、降低能耗的理念在设计中得到充分的实践,符合新时代环保的要求. 关键词:印染废水 水解酸化 生物接触氧化 混凝沉淀 this design, the scale of sewage treatment is to dispose wastewater 5000m3 / d, water quality: COD 900mg / L to 250mg / L, BOD, SS 180mg / L, the color is

400 degrees, pH, NH3-N is 30mg / L Water qualihttp://doc.guandang.net/b72ba1b2156db091cd1ac788a.htmlty can meet the emissions requirements specified in the textile industry standards for water pollutants (DB 32/670-2004), that of COD ≤

100 mg / L of BOD ≤ 25mg / L, SS ≤ 70mg / L, and chroma ≤

40 degrees, pH

6 ~ 9, NH3-N ≤

15 mg / L. color printing and dyeing wastewater, the COD, high content of BOD, complex composition, water quality and quantity of rapid change and so on. Dyeing wastewater is biodegradable wastewater, so the design uses a hydrolysis acidification to improve the wastewater biodegradability. After the program than the election, this design uses a hydrolysis acidification - contact oxidation - coagulation process, the treatment effect was better than the traditional process, BOD, COD, the SS has a good treatment effect, and has low energy consumption, sludge production is less features, and excess sludge can be dehydration. Set after coagulation and sedimentation, sedimentation tanks, as a tertiary treathttp://doc.guandang.net/b72ba1b2156db091cd1ac788a.htmlment, to obtain better water quality, wastewater discharge standards. and economic analysis of this scenario, the total investment of

116 million wastewater treatment cost is 0.64yuan / m3, has a good economic and social benefits. And land conservation, and increase afforestation, the idea of reducing energy consumption in the design to be fully practice, in line with the requirements of a new era of environmental protection. : printing and dyeing wastewater ;