생활하수만을 처리하는 경기지역의 하수처리장을 선정하여 유량조정조, 농축조, 슬러지 콘테이너 3지점에서 발생되는 악취 및 VOCs의 특성을 파악하여 산업별 악취 및 VOCs 현황의 기초 자료로 활용하고자 하였다. 24~27℃의 온도를 보이는 6월에서 7월에 이르는 하절기에 3차례 시료를 채취한 후 GC/MS, GC/FPD로 악취 및 VOCs를 분석하였다. 하수처리장에서 발생되는 악취는 hydrogen sulfide, dimethyldisulfide, ammonia, styrene이 검출되었다. 그 중 주요 원인물질은 14.45~2,340.91 O.U.인 dimethyldisulfide와 18.51~16,520 O.U.인 ammonia 이었다. 또한, 악취 희석 배수치와 악취강도는 슬러지 콘테이너, 유량조정조, 농축조 순으로 높게 나타났다. 하수처리장에서 발생하는 VOCs 물질은 대부분이 벤젠 계열이었으며, dichloromethane, toluene, ethyl benzene, m,p-xylene, styrene, 1,2,4,-trimethylbenzene, 1,3-dichlorobenzene, 1,2-dichlorobenzene이 발생하였다. Toluene은 유량 조정조에서 70.38 ppb~103.07 ppb, 농축조에서 28.18 ppb~40.35 ppb, 슬러지 콘테이너에서 67.92 ppb~180.26 ppb로 높게 나타났다. 발생하는 VOCs 물질 또한, 슬러지 콘테이너, 유량조정조, 농축조 순으로 높았다.
생활하수만을 처리하는 경기지역의 하수처리장을 선정하여 유량조정조, 농축조, 슬러지 콘테이너 3지점에서 발생되는 악취 및 VOCs의 특성을 파악하여 산업별 악취 및 VOCs 현황의 기초 자료로 활용하고자 하였다. 24~27℃의 온도를 보이는 6월에서 7월에 이르는 하절기에 3차례 시료를 채취한 후 GC/MS, GC/FPD로 악취 및 VOCs를 분석하였다. 하수처리장에서 발생되는 악취는 hydrogen sulfide, dimethyldisulfide, ammonia, styrene이 검출되었다. 그 중 주요 원인물질은 14.45~2,340.91 O.U.인 dimethyldisulfide와 18.51~16,520 O.U.인 ammonia 이었다. 또한, 악취 희석 배수치와 악취강도는 슬러지 콘테이너, 유량조정조, 농축조 순으로 높게 나타났다. 하수처리장에서 발생하는 VOCs 물질은 대부분이 벤젠 계열이었으며, dichloromethane, toluene, ethyl benzene, m,p-xylene, styrene, 1,2,4,-trimethylbenzene, 1,3-dichlorobenzene, 1,2-dichlorobenzene이 발생하였다. Toluene은 유량 조정조에서 70.38 ppb~103.07 ppb, 농축조에서 28.18 ppb~40.35 ppb, 슬러지 콘테이너에서 67.92 ppb~180.26 ppb로 높게 나타났다. 발생하는 VOCs 물질 또한, 슬러지 콘테이너, 유량조정조, 농축조 순으로 높았다.
The characteristics of odor and VOCs emitted from a sewage treatment plant was investigated to provide the basic informations in the design of odor and VOCs treatment processes. The sewage treatment plant which treated domestic wastewater only and consisted of a flow equalization tank, thicker, and ...
The characteristics of odor and VOCs emitted from a sewage treatment plant was investigated to provide the basic informations in the design of odor and VOCs treatment processes. The sewage treatment plant which treated domestic wastewater only and consisted of a flow equalization tank, thicker, and sludge container was selected. Odor and VOCs sampled three times (June - July) at the temperatures ranging from 24℃ to 27℃ were analyzed by GC/MS and GC/FPD. Odors were hydrogen sulfide, dimethylsulfide, ammonia, and styrene. Among them, the main compounds were dimethyldisulfide (14.45~2,340.91 O.U.) and ammonia (18.51~16,520 O.U.). The order of odor dilution ratio and odor unit can be listed as follows : Sludge container ＞ Flow equalization tank ＞ Thicker. The main VOC produced from sewage treatment plant was benzenes, and the others were dichloromethane, toluene, ethylbenzene, m,p-xylene, styrene, 1,2,4,-trimethylbenzene, 1,3-dichlorobenzene, and 1,2-dichlorobenzene. The concentration of toluene of a flow equalization tank, thicker, and sludge container were produced from 70.38 ppb to 103.07 ppb, from 28.18 ppb to 40.35 ppb, and from 67.92 ppb to 180.26 ppb. The producing order of VOC can be listed as follows : Sludge container ＞ Flow equalization tank ＞ Thicker.
The characteristics of odor and VOCs emitted from a sewage treatment plant was investigated to provide the basic informations in the design of odor and VOCs treatment processes. The sewage treatment plant which treated domestic wastewater only and consisted of a flow equalization tank, thicker, and sludge container was selected. Odor and VOCs sampled three times (June - July) at the temperatures ranging from 24℃ to 27℃ were analyzed by GC/MS and GC/FPD. Odors were hydrogen sulfide, dimethylsulfide, ammonia, and styrene. Among them, the main compounds were dimethyldisulfide (14.45~2,340.91 O.U.) and ammonia (18.51~16,520 O.U.). The order of odor dilution ratio and odor unit can be listed as follows : Sludge container ＞ Flow equalization tank ＞ Thicker. The main VOC produced from sewage treatment plant was benzenes, and the others were dichloromethane, toluene, ethylbenzene, m,p-xylene, styrene, 1,2,4,-trimethylbenzene, 1,3-dichlorobenzene, and 1,2-dichlorobenzene. The concentration of toluene of a flow equalization tank, thicker, and sludge container were produced from 70.38 ppb to 103.07 ppb, from 28.18 ppb to 40.35 ppb, and from 67.92 ppb to 180.26 ppb. The producing order of VOC can be listed as follows : Sludge container ＞ Flow equalization tank ＞ Thicker.
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