化学法处理高氨氮化工废水的试验研究

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关键词：高氨氮化工废水；吹脱法；折点氯化法；磷酸铵镁化学沉淀法中图分类号：X703 文献标识码：A 文章编号：1008-9500(2026)02-0019-05DOI: 10.3969/j.issn.1008-9500.2026.02.005

Experimental Study on Chemical Treatment of High Ammonia Nitrogen Chemical Wastewater

YUANPengzhou,LITingshan,QIAOShijie,TAOWenyue (ChinaRailway Academy Group Co.,Ltd., Chengdu61oooo, China)

Abstract:Thecompositionofhighammonianitrogenchemicalwastewateriscomplex,withahighconcentrationofmmonia nitrogenandpooriodegradability.Theexperimentusesblowoffmethod,breakpointchlorinationmethod,andagsium ammoniumphosphatechemicalprecipitationmethodtotreathighammonianitrogenchemical wastewater,inordertoreduce itsharmtotheecological environment.Theresultsindicate thatallthreechemicalmethods havegoodremovaleffectson ammonianitrogen inhighammonianitrogenchemical wastewaterunder specificconditions,nd thespecificselectionneeds tobebalancedbasedonthecharacteristicsofthewastewater,treatmentgoals,andeconomicconditions.WhenthepHvalueis 8 and the reaction temperature is 45 C ,the removal rate of ammonia nitrogen by blow off method can reach 87.5% ; when the molar ratio of Cl to N is 7.2:1.0 and the reaction time is 3O min,the removal rate of ammonia nitrogen by the breakpoint chlorination method reaches 97.8% ；when the molarratio of Mg,N,and Pis 1.2 1.0 1.1 and the reaction time is 25 min,the removal rate of ammonia nitrogen by magnesium ammonium phosphate chemical precipitation method reaches 96.8%

Keywords:high ammonia nitrogen chemical wastewater;blowoffmethod;breakpointchlorinationmethod; magnesium ammonium phosphate chemical precipitation method

化工行业是现代工业的重要组成部分，生产过程不可避免地产生大量高氨氮化工废水。（剩余7315字）