徐州造纸厂8000m3d造纸废水处理及资源化工程设计

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******毕业设计(论文)I徐州造纸厂8000m3/d造纸废水处理及资源化工程设计摘要制浆造纸过程中的许多工艺环节都有废水的产生,这些废水不仅对环境有危害,同时也大大提高了成本。为了解决这些问题,寻求一种合理的治理方法显得尤为重要。本设计针对徐州造纸厂的情况,按照国家和环保部门的要求,该厂需要对其生产工艺进行改造,同时对其产生的污水进行处理后资源化利用,实现污水的零排放要求。为此,企业需要投资建设一座污水处理和资源化设施。由资料知纸厂生产过程中产生的废水COD为1800mg/l,BOD为700mg/l,SS为1500mg/l。结合相关资料中造纸废水处理方法及工艺,根据废纸制浆造纸废水特点,以及污水排放标准,本厂废水处理方案确定为微孔筛网过滤-物化预处理-生化法。通过筛网,气浮去除大部分的SS,再经水解酸化将废水中难降解的有机物转化成可降解的有机物,之后的接触氧化法结合了活性污泥和生物膜的优点,提高了处理效率。关键词:造纸废水,处理方法,接触氧化法,零排放******毕业设计(论文)IIXUZHOUPAPETERIES8000M3/DWASTEWATERTREATMENTANDPAPER-BASEDRESOURCESENGINEERINGDESIGNABSTRACTWastewaterisgeneratedinmanyaspectsduringthepapermakingprocess.Thewastewaterisnotonlyhazardoustotheenvironment,butalsogreatlyincreasedthecost.So,tosolvetheseproblems,findingareasonablemethodoftreatmentisespeciallyimportant.ThedesignisforthecaseofpapermillsinXuzhou,inaccordancewiththestateandtherequirementsofenvironmentalprotectiondepartment.Theplantneedstotransformitsproductionprocess,atthesametimethesewagegeneratedtocarryouttheirtreatmentoftheuseofresourcesandachievezeroemissions.Tothisend,enterprisesneedtoinvestintheconstructionofasewagetreatmentandresourcesfacilities.Informationknownbythepapermill,wastewaterproducedconsistsCODto1800mg/l,BODto700mg/l,SSfor1500mg/l.Relevantinformationinthepapercombinedwithwastewatertreatmentmethodsandtechnology,accordingtothecharacteristicsofthewastepaperpulpandpaperwastewater,andeffluentstandards,wastewatertreatmentplantasamicroscopicfilterscreen-physical-chemicalpre-treatment-chemicalorbiologicalmethodatlast.Throughthescreen,.mostoftheSSwereremoved,thenacidhydrolysisofwastewaterintherefractoryorganicmatterintobiodegradableorganicmatter,followedbythecontactoxidationcombinedwithactivatedsludgeandbiologyoftheadvantagesofincreasedprocessingefficiency.KEYWORDS:paperwastewater,treatmentmethods,contactoxidation,zeroemissionstechnology******毕业设计(论文)III目录前言................................................................................................1第1章绪论......................................................................................21.1造纸工业废水的产生............................................................21.2造纸废水基本处理方法.........................................................31.3徐州造纸厂相关资料.............................................................5第2章处理工艺确定.......................................................................72.1概述......................................................................................72.2工艺比较...............................................................................72.3方案确定.............................................................................10第3章筛网....................................................................................123.1筛网的设计说明.................................................................133.2具体设计.............................................................................13第4章调节池设计.........................................................................144.1调节池设计说明.................................................................144.1.1水量均衡调节(均衡池)........................................144.1.2水质均衡调节(均质池)........................................154.2调节池的几种形式..............................................................164.3调节池具体设计计算.........................................................164.4泵站....................................................................................17第5章气浮池................................................................................195.1气浮池设计说明.................................................................195.1.1加压溶气气浮法工艺流程........................................195.1.2加压溶气气浮法的特点............................................205.2气浮池的具体设计计算.....................................................20第6章污泥浓缩池.......................................................................246.1概述....................................................................................246.2设计规定及数据.................................................................246.3设计参数.............................................................................25******毕业设计(论文)IV第7章高程布置...........................................................................287.1高程布置.............................................................................287.1.1高程布置的基本原则...............................................287.1.2污水流动中的水头损失............................................287.2高程计算.............................................................................297.2.1污水管路的计算.......................................................297.2.2污泥管路的计算.......................................................32结论..............................................................................................34谢辞................................................................................................35参考文献..........................................................................................36外文资料翻译..................................................................................37******毕业设计(论文)1前言有效应用各种废水处理技术,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