ABS树脂装置丁二烯聚合工段废水水质表征

Representation of Wastewater from a Section of Butadiene Polymerization by Flocculating Setting Process

为确定某ABS树脂装置丁二烯聚合工段废水水质,特别是特征有机物种类,采用吹扫捕集、静态顶空、固相萃取、固相微萃取和液液萃取等预处理方法与GC/MS（气相色谱/质谱）联用,定性检测出该工段废水中含有16种挥发、半挥发性有机物,主要包括烯烃、苯系物、有机腈、多环芳烃、醚、醇和胺.废水ρ（SS）（SS为悬浮物）为540.31 mg/L;SS粒径主要分布在0.10-5.00μm之间,可吸附水中4.83%-33.21%的对二甲苯、乙苯、苯乙烯和1,5-环辛二烯等有机物.与生活污水不同,该工段废水三维荧光光谱图的荧光区域集中在λEx/λEm（激发波长/发射波长）=205-285 nm/310-360 nm范围内,主要包括λEx/λEm为285 nm/350nm、260 nm/310 nm、225 nm/345 nm、210 nm/315 nm、230 nm/360 nm的5个荧光峰,由甲苯、靛蓝、苯乙烯、脱氢松香酸、芴、菲等苯系物和多环芳烃类有机物引起.废水在200-250 nm之间有较强紫外吸收峰,主要由1,3-丁二烯、苯甲醛、苯乙酮、4-苯基-1-环己烯等共轭二烯、不饱和醛、酮和苯系物等有机物引起.

In order to determine the quality of wastewater from a section of butadiene polymerization,purge and trap,static headspace,solid-phase extraction,solid-phase microextraction and liquid-liquid extraction as pretreatment methods coupled with GC/MS（ gas chromatography/mass spectrometry） were used for analysis of the wastewater. In total 16 kinds of volatile and semi-volatile organic compounds were found in the wastewater including alkene,benzenes,organic nitrile,polycyclic aromatics,ethers,alcohols and amines.The concentration of suspend solids（ SS） was 540. 31 mg/L,while the particle sizes ranged from 0. 10-5. 00 μm. Its adsorption capacities for xylene,ethylbenzene,styrene,1,5-cyclooctadiene and other organic matter were 4. 83%-33. 21%. Significant differences were found between the wastewaters from the butadiene polymerization section and domestic sewage. Fluorescent regions of the former focused onλEx/λEm= 205-285 nm/310-360 nm,which mainly consisted of five fluorescence peaks λEx/λEm= 285 nm/350 nm,260 nm/310nm,225 nm/345 nm,210 nm/315 nm and 230 nm/360 nm. The five peaks were caused by benzenes and polycyclic aromatics such as toluene,indigo,styrene,dehydroabietic acid,fluorene and phenanthrene. UV absorption spectrophotometry focused around200-250 nm, which was caused by conjugated diolefins,unsaturated aldehydes,ketones,and benzenes such as 1,3-butadiene,benzaldehyde,acetophenone and 4-phenyl-1-cyclohexene.