焦化废水处理工艺探究

焦化废水处理工艺探究-ca108fcd05087632311212ae!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!科技情报开发与经济SCI-TECHINFORMATIONDEVELOPMENT&ECONOMY2006年第16卷第3期ConsiderationsaboutStrengtheningtheConstructionofAccountants’ProfessionalEthicsWANGJuan,LIUYu-xia,PANJin-yang,WANGYingABSTRACT:Inthelightoftheproblemsthattheconceptofaccountants’professionalethicsispoor,andaccountants’behavioralregulationisdeficient,etc.,thispaperpointsoutthatstrengtheningtheconstructionofaccountants’professionalethicsandbehavioralregulation,realizingaccountants’strictself-containing,andguaranteeingthequalityofaccountinginformationaretheimportantconditionsofpromotingthehealthydevelopmentofthenationaleconomyandbuildingtheharmonioussociety.KEYWORDS:accountant;professionalethics;behavioralregulation焦化废水是焦炭、煤气净化及焦化产品回收过程中产生的废水,其有机物成分复杂,组分种类繁多,且污染物浓度高,主要成分为酚类化合物、多环芳香族化合物、含氮氧硫的杂环化合物及脂肪族化合物,属难生物降解有机废水。因此焦化废水的处理一直是国内外废水处理的一大难题。GB8978—96污水综合排放标准对焦化废水的排放规定如下:一级标准是NH3-N≤15mg/L,COD≤100mg/L;二级标准是NH3-N≤25mg/L,COD≤150mg/L。过去,国内外去除焦化废水中的NH3-N和COD主要依靠活性