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2014年11月第6期BriefDiscussionontheEngineeringDesignoftheRemovalofAmmoniaandNitrogeninSaltContainedWastewaterLiJing1,LanYixiang2,LaiYuanlin1(1SichuanZigongLightIndustryDesignandResearchInstituteCo.,LtdZigongSichuan6430002SichuanMeishanRinengSiliconMaterialCo.,ltdMeishanSichuan620041)Abstract:Accordingtothesaltcontainednaturalgasexploitationwaterofsomecompany,thispapermakesengineeringdesignoftheremovalofammoniaandnitrogenintherecoveringofNaclproduct.Inthepreevaporationprocess,salinitywastewatercanremovemorethan95%ammonianitrogenwhichensuresthesmooth,effectiveoperationofthesubsequentsection.Meanwhile,thispapertakesbreakpointchlorinationmethodandblowoffmethodtocarryoutammonianitrogenremovaltreatmentcondensateproducedinthepre-evaporationprocessandaddactivecarbonfiltertoreduceNH3-Ninthecondensatetobelow10mg/landreachtherequirementofammoniaandnitrogenguaranteesofthecirculationcondensateinGB/T50746-2012.Keywords:Saltcontainedwastewater,pre-evaporation,ammonicaandnitrogenrevomal,breakpointchlorinationmethod,engineeringdesign.:根据某公司含盐天然气采出水成分,针对其在回收NaCl产品的过程中去除氨氮进行了工程化设计。含盐废水在预蒸发过程中氨氮的脱除率可达95%以上,保证了后续工段的平稳、有效运行。同时,用折点加氯法+吹脱法对预蒸发过程产生的冷凝水进行脱氨氮处理,并增设了活性炭过滤器,使冷凝水中NH3-N指标降到10mg/L以下,达到GB/T50746-2012中循环冷却水的氨氮指标要求。:含盐废水;预蒸发;去除氨氮;折点氯化法;工程化设计:TS36:A:1001-0335(2014)06-0033-03:李静(1980-),女,青海海西人,本科,工程师,主要从事盐化工、环保等方面的工艺设计工作。45Vol.45CHINAWELLANDROCKSALT李静1,兰毅翔2,赖远林1(1,643000;2,620041)1NaCl30~40g/L,NH3-N40~70mg/L。“、”,。,《》GB/T50746-2012,NH3-N。,。,3:(NH3-N500mg/L),(NH3-N50~500mg/L),(NH3-N50mg/L)。150~200mg/L,。、。、、;,;、。、、、;、[1]。,,、、、,、、。2,NH3-NN2。,,。,。,。33November2014No.6,。(NaC1O),[2-3]。[4]NaC1O,。[5]NaC1O,。:NaClO+H2O→HOCl+NaOHNH4++HOCl→NH2Cl+H++H2O(1)NH2Cl+HOCl→NHCl2+H2O(2)NH2Cl+NHCl2→N2↑+3H++3Cl-(3)(1),(NH2Cl),;,(2),(NHCl2),(3),[6]。(HOCl)、pH,,1mg5.8mg(HOCl),8.3mgNaClO。,。,,[6]。,,,。33.1600m3/d,NaCl30~40g/L、NH3-N40~70mg/L,,NH3-N≤10.0mg/L,《》GB/T50746-2012。3.21。,。,。NaCl。,,。,。,,,。3.33.3.1,NaCl,NaClO,,。,。3.3.2,NaClON2。3.3.3,,。3.3.4NaCl,GB/T50746-2012。3.413.5、3.5.1,:(1),1(44)李静等:含盐废水去除氨氮的工程化设计浅谈34November2014No.6150~200mg/L,10%,10.0mg/L;(2)(),。0.6~1.5mg/L,,95%,NaCl。3.5.2、:(1),NaCl,“”。,,;(2),NaCl,“,”,。44.1,0.6~1.5mg/L,95%,NaCl、。4.2NaClO,10.0mg/L,《》GB/T50746-2012。4.3,,。4.4、、、,“、、”,。[1].[J].,2009,37(6):42-44.[2],,.[J].,2005,36(6):14-16.[3],,,.[J].,2011,34(3):90-92,133.[4],,.[J].,2009,40(3):23-26.[5].[J].,2007,32(12):97-99,147.[6].[J].,2008,33(11):102-108.(收稿日期:2014-10-17)(编辑/孔志远)刘海红:浅析国有企业如何落实“两个责任”,。,,、、。3.3。,、,。、、、,,“”:,;,、;,;:“,”,;,、、。3.4。《2013~2017》,。“”、、,,“”、“”,、、,,,、,、,。“”,,,、。,、。3.5。“”,、,,,,,,“”,。,。,、、。,《》、、,,、,,。,“”(、、),,,、、,、、。(收稿日期:2014-06-09)(编辑/周蕾)(34)44
本文标题:含盐废水去除氨氮的工程化设计浅谈李静
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