In Situ Bioremediation of Ground Water Contaminated with Petroleum Hydrocarbons
碩士 === 國立屏東技術學院 === 環境工程技術研究所 === 85 === The objective of this study is to develop an upflow biofilter in combination with a leaching system treating groundwater and soil contaminated with petroleum hydrocarbons simultaneously, and enhancing the efficienc...
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ndltd-TW-085NPUST5140032019-05-15T20:32:27Z http://ndltd.ncl.edu.tw/handle/mh335a In Situ Bioremediation of Ground Water Contaminated with Petroleum Hydrocarbons 受油污染之地下水現地生物復育技術研究 Chuang, Shun 莊順 碩士 國立屏東技術學院 環境工程技術研究所 85 The objective of this study is to develop an upflow biofilter in combination with a leaching system treating groundwater and soil contaminated with petroleum hydrocarbons simultaneously, and enhancing the efficiency of in situ bioremediation. In the preliminary studies, results tested by respirometer showed over 80% of 104mg/L BTEX(Benzene, Toluene, Ethylbenzene, and Xylene)was biodegraded in 142 hours at 20C under aerobic conditions. Under the same temperature, over 98% of a solution containing 12mg/L BTEX was biodegraded in 169 hours with the addition of 50mg/L H2O2. An abiotic test showed that 11mg/L of BTEX was not transformed at all by chemical reaction with the addition of 333mg/L H2O2 under 20C and 100rpm shaking for 36 hours. In this study, a reducing agent, Na2SO3 was used to help maintain the DO<0.2mg/L for anaerobic conditions. In an experiment to test if the addition of a 700mg/L of Na2SO3 would have impact upon the microorganisms, it was found that over 98% of a 10mg/L BTEX was degraded under 20C for 15 days anaerobically, with or without adding 700mg/L Na2SO3. The results of laboratory-scaled upflow biofilter system experiments evidenced that, over 98% of a solution containing 13mg/L BTEX was biodegraded with HRT( Hydraic Retention Time)=1 hour and adding of H2O2=33mg/L in 240 minutes. It was also found that the efficiency was maintainable in a lower HRT of 0.5 hour. Furthermore, the soil leaching experiment was tested with three different leachates(from distilled water, effluent from an aerobic upflow biofilter , and effluent from an anaerobic upflow biofilter , respectively). The calculated result of mass balance showed that it would take only about 65 days to remedy soil contaminated with BTEX (4000mg/kg dry soil) by leaching with effluent from the aerobic upflow biofilter. With the results showed from these studies, feasibility of developing an upflow biofilter system treating groundwater and soil contaminated with petroleum hydrocarbons simultaneously was demonstrated. Kuo Wen-Chien 郭文健 1997 學位論文 ; thesis 113 zh-TW |
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碩士 === 國立屏東技術學院 === 環境工程技術研究所 === 85 === The objective of this study is to develop an upflow
biofilter in combination with a leaching system treating
groundwater and soil contaminated with petroleum hydrocarbons
simultaneously, and enhancing the efficiency of in situ
bioremediation. In the preliminary studies, results tested by
respirometer showed over 80% of 104mg/L BTEX(Benzene, Toluene,
Ethylbenzene, and Xylene)was biodegraded in 142 hours at 20C
under aerobic conditions. Under the same temperature, over 98%
of a solution containing 12mg/L BTEX was biodegraded in 169
hours with the addition of 50mg/L H2O2. An abiotic test showed
that 11mg/L of BTEX was not transformed at all by chemical
reaction with the addition of 333mg/L H2O2 under 20C and 100rpm
shaking for 36 hours. In this
study, a reducing agent, Na2SO3 was used to help maintain the
DO<0.2mg/L for anaerobic conditions. In an experiment to test if
the addition of a 700mg/L of Na2SO3 would have impact upon the
microorganisms, it was found that over 98% of a 10mg/L BTEX was
degraded under 20C for 15 days anaerobically, with or without
adding 700mg/L Na2SO3. The results of laboratory-scaled upflow
biofilter system experiments evidenced that, over 98% of a
solution containing 13mg/L BTEX was biodegraded with HRT(
Hydraic Retention Time)=1 hour and adding of H2O2=33mg/L in 240
minutes. It was also found that the efficiency was maintainable
in a lower HRT of 0.5 hour.
Furthermore, the soil leaching experiment was tested with three
different leachates(from distilled water, effluent from an
aerobic upflow biofilter , and effluent from an anaerobic upflow
biofilter , respectively). The calculated result of mass balance
showed that it would take only about 65 days to remedy soil
contaminated with BTEX (4000mg/kg dry soil) by leaching with
effluent from the aerobic upflow biofilter. With the results
showed from these studies, feasibility of developing an upflow
biofilter system treating groundwater and soil contaminated with
petroleum hydrocarbons simultaneously was demonstrated.
|
author2 |
Kuo Wen-Chien |
author_facet |
Kuo Wen-Chien Chuang, Shun 莊順 |
author |
Chuang, Shun 莊順 |
spellingShingle |
Chuang, Shun 莊順 In Situ Bioremediation of Ground Water Contaminated with Petroleum Hydrocarbons |
author_sort |
Chuang, Shun |
title |
In Situ Bioremediation of Ground Water Contaminated with Petroleum Hydrocarbons |
title_short |
In Situ Bioremediation of Ground Water Contaminated with Petroleum Hydrocarbons |
title_full |
In Situ Bioremediation of Ground Water Contaminated with Petroleum Hydrocarbons |
title_fullStr |
In Situ Bioremediation of Ground Water Contaminated with Petroleum Hydrocarbons |
title_full_unstemmed |
In Situ Bioremediation of Ground Water Contaminated with Petroleum Hydrocarbons |
title_sort |
in situ bioremediation of ground water contaminated with petroleum hydrocarbons |
publishDate |
1997 |
url |
http://ndltd.ncl.edu.tw/handle/mh335a |
work_keys_str_mv |
AT chuangshun insitubioremediationofgroundwatercontaminatedwithpetroleumhydrocarbons AT zhuāngshùn insitubioremediationofgroundwatercontaminatedwithpetroleumhydrocarbons AT chuangshun shòuyóuwūrǎnzhīdexiàshuǐxiàndeshēngwùfùyùjìshùyánjiū AT zhuāngshùn shòuyóuwūrǎnzhīdexiàshuǐxiàndeshēngwùfùyùjìshùyánjiū |
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