造纸厂污水处理设计说明书

包头市造纸厂废水处理工艺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。本设计针对包头造纸厂废水的情况，按照国家和环保部门的要求，需要对该厂产生的污水进行处理。由资料知纸厂生产过程中产生的废水COD为1400mg/l，BOD为500mg/l，SS为1000mg/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；气浮法内蒙古科技大学毕业设计说明书IIABSTRACTWastewaterisgeneratedinmanyaspectsduringthepapermakingprocess.Thewastewaterisnotonlyhazardoustotheenvironment,butalsogreatlyincreasedthecost.So,tosolvetheseproblems,findingareasonablemethodoftreatmentisespeciallyimportant.ThedesignisforthecaseofpapermillsinBaotou,inaccordancewiththestateandtherequirementsofenvironmentalprotectiondepartment.Informationknownbythepapermill,wastewaterproducedconsistsCODto1400mg/l,BODto500mg/l,SSfor1000mg/l.Relevantinformationinthepapercombinedwithwastewatertreatmentmethodsandtechnology,accordingtothecharacteristicsofthewastepaperpulpandpaperwastewater,andeffluentstandards,wastewatertreatmentplantasamicroscopicfilterscreen-physical-chemicalpre-treatment-chemicalorbiologicalmethodatlast.Throughthescreen,.mostoftheSSwereremoved,thenacidhydrolysisofwastewaterintherefractoryorganicmatterintobiodegradableorganicmatter,followedbythecontactoxidationcombinedwithactivatedsludgeandbiologyoftheadvantagesofincreasedprocessingefficiency.KEYWORDS:paperwastewater;treatmentmethods;contactoxidation;flotati内蒙古科技大学毕业设计说明书I目录前言...............................................................1第一章绪论..........................................................21.1造纸工业废水的产生............................................21.1.1备料过程中的废水........................................21.1.2蒸煮废水................................................21.1.3污冷凝水................................................21.1.4机械浆及化学机械浆废水..................................31.1.5洗浆，筛选废水..........................................31.1.6废纸回用过程中产生的废水................................31.1.7漂白废水................................................31.1.8造纸废水................................................31.2造纸废水基本处理方法..........................................41.2.1气浮或沉淀法...........................................41.3包头造纸厂相关资料...........................................61.3.1水量、水质资料..........................................61.3.2地质资料................................................61.3.3用地资料................................................61.3.4出水去向................................................6第二章处理工艺确定..................................................72.1概述.........................................................72.2工艺比较.....................................................82.2.1SBR工艺的主要特点是：..................................82.2.2深井曝气工艺...........................................82.2.3AB工艺的性能特点.......................................92.2.4厌氧—好氧工艺.........................................92.2.5酸化水解—好氧工艺.....................................92.2.6UASB反应器............................................102.3方案确定....................................................11第三章筛网.........................................................143.1筛网的设计说明..............................................143.2具体设计....................................................14内蒙古科技大学毕业设计说明书II第四章调节池设计...................................................164.1调节池设计说明..............................................164.2调节池的几种形式.............................................164.3调节池具体设计计算..........................................174.4泵站.........................................................18第五章气浮池.......................................................205.1气浮池设计说明..............................................205.1.1加压溶气气浮法工艺流程................................205.1.2加压溶气气浮法的特点..................................215.2气浮池的具体设计计算........................................225.2.1确定溶气水量...........................................225.2.2气浮池的设计...........................................235.2.3溶气罐的设计..........................................245.2.4空压机选型.............................................245.2.5刮渣选型...............................................255.2.6混合池计算.............................................25第六章水解酸化池...................................................276.1水解酸化池的设计说明.........................................276.2水解酸化池设计计算..........................................276.2.1水解酸化池尺寸计算...................................276.2.2布水系统.............................................286.2.3出水系统.............................................286.2.4污泥产量的计算.......................................29第七章生物接触氧化池..............................................307.1生物接触氧化池设计说明.......................................307.2接触氧化池的设计计算........................................307.2.1接触氧化池尺寸........................................317.2.2曝气系统的计算.......................................327.2.3曝气器及空气管路的计算.................................337.2.4污泥产量计算..........................................347.2.5接触氧化池布水系统设计................................357.2.6接触氧化池出水系统计算...............................3