污水综合排放标准GB8978-19961第一类污染物最高允许排放浓度单位:mg/l序号污染物最高允许排放浓度1总汞0.052烷基汞不得检出3总镉0.14总铬1.55六价铬0.56总砷0.57总铅1.08总镍1.09苯并(a)芘0.0000310总铍0.00511总银0.512总α放射性1Bq/L13总β放射性10Bq/L表2第二类污染物最高允许排放浓度(1997年12月31日之前建设的单位)单位:mg/L序号污染物适用范围一级标准二级标准三级标准1pH一切排污单位6~96~96~92色度(稀释倍数)染料工业50180-其他排污单位5080-3悬浮物(SS)采矿、选矿、选煤工业100300-脉金选矿100500-边远地区砂金选矿100800-硬指标是以统计数据为基础,把统计数据作为主要评价信息,通过硬指标信息的直接提取或硬指标计算公式,最终获得数量结果的业绩考评指标orequalto20mm,notmorethan4mm.7.3.9simmeringbendingproductionofsquaresteltubeextension,tousethewholetubebending.Interfaceifnecessary,theweldingpositionshouldbelocatedinthemiddleoftheverticalarm.7.3.10installexpansionjointsshouldbedone.Ifdesignisnotrequired,pipecompensatorlengthenshouldconformtotherequirementsinthefollowingtable:squarescalelengthδxisequalto1/2.Prestretchtolerance:casing+5mm,+10mm.7.3.1pipeform,location,spacingshallmetthedesignandspecifications.7.3.12pipingonbackorreturnpipeathigherlevelsoftheuppertoautomaticvalvetoinstalladrainvalvebelowthehorizontalparts.7.3.13supportsandhangersofchecksandthenumber1)hangerinstalledmustbecheckedbeforeinstallationofsupportsandhangerspartmodels,specificationsofspringssettingvalues,whetherthematerialsmettherequirementsofdrawingsanddocuments;2)supportsandhangersofmaterial,sizeandaccuracyshallconformtotheprovisionsofthedesigndrawings,materialtechnicalrequirementsshouldbeconsistentwithnationalstandards,industrystandardsandtechnicalrequirementsrelatedtothealloyspectrumreviewshouldbecarriedout;3)pipesupportsandhangerspartplantproductqualitycertificateforeachvariablespringsupports,constantsupporthangers,dampers,damperfunction,thereshouldbefactorycalibratedtestandperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbe.城镇二级污水处理厂2030-其他排污单位70200400甘蔗制糖、苎麻脱胶、湿法纤维板工业30100600甜菜制糖、酒精、味精、皮革、化纤浆粕工业30150600城镇二级污水处理厂2030-其他排污单位3060300甜菜制糖、焦化、合成脂肪酸、湿法纤维板、染料、洗毛、有机磷农药工业1002001000味精、酒精、医药原料药、生物制药、苎麻脱胶、皮革、化纤浆粕工业100300100石油化工工业(包括石油炼制)100150500城镇二级污水处理厂60120-其他排污单位1001505006石油类一切排污单位1010307动植物油一切排污单位20201008挥发酚一切排污单位0.50.52.0电影洗片(铁氰化合物)0.55.05.0其他排污单位0.50.51.010硫化物一切排污单位1.01.02.0医药原料药、染料、石油化工工业1550-其他排污单位1525-12氟化物黄磷工业102020低氟地区(水体含氟量<0.5mg/L)102030其它排污单位101020.硬指标是以统计数据为基础,把统计数据作为主要评价信息,通过硬指标信息的直接提取或硬指标计算公式,最终获得数量结果的业绩考评指标orequalto20mm,notmorethan4mm.7.3.9simmeringbendingproductionofsquaresteltubeextension,tousethewholetubebending.Interfaceifnecessary,theweldingpositionshouldbelocatedinthemiddleoftheverticalarm.7.3.10installexpansionjointsshouldbedone.Ifdesignisnotrequired,pipecompensatorlengthenshouldconformtotherequirementsinthefollowingtable:squarescalelengthδxisequalto1/2.Prestretchtolerance:casing+5mm,+10mm.7.3.1pipeform,location,spacingshallmetthedesignandspecifications.7.3.12pipingonbackorreturnpipeathigherlevelsoftheuppertoautomaticvalvetoinstalladrainvalvebelowthehorizontalparts.7.3.13supportsandhangersofchecksandthenumber1)hangerinstalledmustbecheckedbeforeinstallationofsupportsandhangerspartmodels,specificationsofspringssettingvalues,whetherthematerialsmettherequirementsofdrawingsanddocuments;2)supportsandhangersofmaterial,sizeandaccuracyshallconformtotheprovisionsofthedesigndrawings,materialtechnicalrequirementsshouldbeconsistentwithnationalstandards,industrystandardsandtechnicalrequirementsrelatedtothealloyspectrumreviewshouldbecarriedout;3)pipesupportsandhangerspartplantproductqualitycertificateforeachvariablespringsupports,constantsupporthangers,dampers,damperfunction,thereshouldbefactorycalibratedtestandperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbe