全世界水资源紧缺和水环境污染成为主要危机我国水资源短缺,包钢地处干旱 地区的华东六省钢铁工业的废水排放量很大,废水中含有大量的污染物质和有害物 质,对水体环境影响较大因此,治理钢铁工业废水,对解决水体污染,保护和节约 水资源具有重要的意义将污水经过深度处理净化后,达到一定的水质标准,可在一 定范围内循环使用的非饮用水称为再生水再生水资源开始在世界各国逐步得到重视 包钢是五十年代建设的全国特大型钢铁联合企业之一,现已形成年产钢!铁双700 xl少t的能力包钢位于黄河西岸,厂区生产!生活水源是黄河,取水量m33/S左右, 总排水系统汇集了厂区内各二级单位的生产废水和生活污水,水体中悬浮物!油!重 金属!酚!氰!COD等污染因子超标严重且有增长趋势未经处理的总排水大量排 放,污染了黄河及昆河,尤其对在包钢总排口下游10km处新建成的供包头市居民生活 饮用水的画匠营子水源地及生活水净水厂造成极大威胁,使包头市人民的生活饮用水 的用水安全受到严重影响因此,治理排放量大!污染成分复杂!水质恶劣!水质变 动幅度大的包钢总排污水,减轻包钢总排污水对黄河水的污染,开发利用废水资源, 节约水资源,保护水源地,进一步提高包钢生产用水的循环使用率及水的重复利用率, 具有重要意义 本报告通过对包钢用!排水现状及水质分析,确定了包钢总排回用水的处理程度! 处理工艺及处理效果,并与回用水标准对比,找出了存在问题,目前的回用水部分用 户对水质要求高,不能直接回用提出建议:回用水需进一步深度处理及深度处理工 艺方案并确定了技术经济评价从技经评价可看出,包钢总排再生水的回用,不仅具 有深远的社会效益和较好的经济效益,而且实现了包钢清洁生产,减少了包钢从黄河 取水,提高了包钢工业水重复利用率,可以为包钢在扩大生产规模时提供能源保障 关键词:再生污水处理回用深度处理技经评价 报告类型:应用西安建筑科技大学硕士学位报告 AFeasibiliytstudyonwastewatereruseengineeringof BoagnagorInnadSetelCoprorition SPeeialiyt:ArchietcotreEnglneering Graduateustde:ntLiosngFen Tutor:PengDnagCongProefssor AbstmCt ShoartgeofwaterersoucrenadPollutionofwaterenviromnent15mainerisisinthe wholeworld.oureountyrbelongstohsortageofwaterersoucre.BoagnagloeaetsinHuadong sixPorvincesofaridiyt.WastewaterdarinedorfmaindustieywihtalotofPolluatnts influneeesinwaetrbo勿seriously.Soit15veyrimP0rtanttodealtoWastewaterorfmsetel industries.DeePlyertatmentwastewterwaterreachingaeertainqpaliyts切叮dardwhich ereicrleincedaintrange15defindeecrlaimed认吸ter.lt15ergardedasveyrimPo比劝tallof eountriesinhteworid. 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Kewyodr:ReelaimedWastewaterertatineniReusingDealingdePelyEeonomiePeorfmrnaee ThesisytPe:APPlication 111西安建筑科技大学硕士学位报告 目录 1.绪论................................................................................................................1 1.1问题的提出..................................................................................1 1.2水资源和水环境的现状...................................................................2 1.2.1我国的水资源和水环境现状...................................................... 1..22工业企业污染对水资源和环境的影响..........................................3 1..23包钢的水资源和水环境现状...................................................... 1.3再生水回用研究现状......................................................................7 1.3.1国外现状及发展水平...............................................................7 1.3.2国外钢铁企业污水再生回用的发展状况.......................................9 1..33国内钢铁企业污水再生回用的发展状况.....................................n 1.3.4我国工业污水再生回用存在的问题及对策..................................12 1..35国内外工业再生水回用的发展方向...........................................14 1.4包钢再生水回用现状......................................................................16 1.4.1包钢回用水现状...................................................................16 1..42包钢总排污水再生水质的确定.................................................16 1..43污水处理的要求..................................................................18 1..44包钢总排回用水课题研究内容.................................................19 1.5本章小结.....................................................................................19 .2包钢总排回用水水质分析及回用分析.............................................20 2.1包钢自然与环境状况................................................................O 2.1.1包钢地理位置与自然状况.......................................................0 2.1.2包钢的经济带动作用.............................................................20 2.1.3包钢地区水资源状况.............................................................21 2.1.4包钢地区水环境状况演变........................................................1 2.1.5包钢废水排放水体水质评价.....................................................2 .22包钢总排污水处理水质分析.............................................................24 .22.1包钢总排污染物及污染因素的确定...........................................24 夕 ,西安建筑科技大学硕士学位报告 .2.22包钢总排污水处理水质分析....................................................26 .2.23包钢总排处理工艺的确定.........................................................27 .2.24包钢总排处理工艺..................................................................28 .2.25回用水水质对比.....................................................................31 .2.26包钢总排回用水用户...............................................................32 .23包钢总排回用水用户分析...............................................................34 .24本章小结.....................................................................................34 3.包钢总排回用水的系统分析...........................................................35 3.1国内外对回用水深度处理的研究......................................................35 3.2膜处理技术.................................................................................36 3 . 3脱盐工艺....................................................................................37 3 . 3 . 1脱盐方法............................!..........................................37 3.3.2脱盐预处理工艺的选择...........................................................38 3.4包钢总排再生水回用原则...............................................................39 3.5包钢总排回用水的使用方向.............................................................39 3.5.1低端用户.............................................................................39 3.5.2高端用户.............................................................................40 3 . 6包钢总排再生水深度处理任务.........................................................0 3.7包钢总排再生水深度处理方法.