環保專案成果報告查詢系統

專案計畫編號	EPA-99-GA103-03-A236-17
經費年度	099
計畫經費	990 千元
專案開始日期	2010/12/31
專案結束日期	2011/12/30
專案主持人	張書奇
主辦單位	土污基管會
承辦人	尤衍翔
執行單位	國立中興大學
專案分類	土壤及地下水
中文關鍵字	多氯聯苯;底泥;重金屬
英文關鍵字	Sediment;Polychlorinated biphenyls;Heavy metals
協同主持人	余光昌
共同主持人
計畫聯絡人	張書奇
計畫聯絡電話	04-22840441#502
計畫聯絡信箱	shuchichang@nchu.edu.tw

中文摘要	河川底泥在生態系中扮演重要功能，如河川自淨功能、浮游生物棲地、河川底棲生物棲地等，一旦遭受持久性污染物之污染，污染物將可循食物鏈進入人體及動植物體內，造成人體健康危害與生態系損害。以我國目前污染嚴重之二仁溪為例，其污染源分佈以上游畜牧廢水為最大宗，下游匯合三爺宮溪（以燃燒廢五金、電鍍、酸洗、廢油為大宗）後入海，其下游灣裡一帶即為當年廢五金露天燃燒地區，廢氣中粒狀物質沉降及廢金屬回收酸洗廢水直接排入河川中。經歷年學者調查，最引人注意之污染物包括重金屬、多環芳香烴類、多氯聯苯與戴奧辛。依據歷史性資料，戴奧辛之濃度未達污染管制標準(平均值為土壤污染管制標準之2%以下)；多環芳香烴類雖無相關標準，但明顯達到有害程度，多氯聯苯則已明顯超過標準，應採積極性工程方法進行復育；重金屬污染以鉻與砷之濃度與毒性相對較高而有顯著風險，亦應進行復育。但經濟有效之復育技術付之闕如，本計畫之目的在於開發低成本高效率之奈米材料進行生物、物理化學整合之復育，去除底泥中之重金屬、多環芳香烴與多氯聯苯。本模場試驗計畫之特色在於以一整合方式進行底泥污染復育，於四種不同復育條件同時進行，即自然衰減（natural attenuation）、生物刺激與生物起始（biostimulation and bioaugmentation）、物理化學吸附回收及整合式復育四種不同策略之對照試驗。以三類型之污染物總體去除率評估復育成果，避免因某特定污染物之降低，卻造成其他污染物之累積，而增加整體環境毒性風險。本計畫將於二仁溪之支流三爺宮溪永寧橋下游之底泥進行模場試驗，以自行設計之試驗設施進行研究，自然衰減部分將不進行任何工程改變，僅監看各項污染物之濃度演變；生物刺激與生物起始組於本計畫年度將著重於生物刺激，以加入食品級植物油奈米乳化液及其他需要之營養物為主；物理化學吸附回收則以奈米氧化鐵進行重金屬之回收；整合式復育則以結合食品級植物油奈米乳化液與奈米氧化鐵同時進行復育為主要手段。預期本計畫之成果，將完成至少一項低成本高效益之底泥整治技術研發，其衍生效益不僅有助於於我國於河川底泥整治之技術水準提昇，了解實場整治可能產生之技術問題與克服途徑，並能促進底泥生態品質提升及國人健康之維護。
中文關鍵字	多氯聯苯;底泥;重金屬

中文摘要

河川底泥在生態系中扮演重要功能，如河川自淨功能、浮游生物棲地、河川底棲生物棲地等，一旦遭受持久性污染物之污染，污染物將可循食物鏈進入人體及動植物體內，造成人體健康危害與生態系損害。以我國目前污染嚴重之二仁溪為例，其污染源分佈以上游畜牧廢水為最大宗，下游匯合三爺宮溪（以燃燒廢五金、電鍍、酸洗、廢油為大宗）後入海，其下游灣裡一帶即為當年廢五金露天燃燒地區，廢氣中粒狀物質沉降及廢金屬回收酸洗廢水直接排入河川中。經歷年學者調查，最引人注意之污染物包括重金屬、多環芳香烴類、多氯聯苯與戴奧辛。依據歷史性資料，戴奧辛之濃度未達污染管制標準(平均值為土壤污染管制標準之2%以下)；多環芳香烴類雖無相關標準，但明顯達到有害程度，多氯聯苯則已明顯超過標準，應採積極性工程方法進行復育；重金屬污染以鉻與砷之濃度與毒性相對較高而有顯著風險，亦應進行復育。但經濟有效之復育技術付之闕如，本計畫之目的在於開發低成本高效率之奈米材料進行生物、物理化學整合之復育，去除底泥中之重金屬、多環芳香烴與多氯聯苯。本模場試驗計畫之特色在於以一整合方式進行底泥污染復育，於四種不同復育條件同時進行，即自然衰減（natural attenuation）、生物刺激與生物起始（biostimulation and bioaugmentation）、物理化學吸附回收及整合式復育四種不同策略之對照試驗。以三類型之污染物總體去除率評估復育成果，避免因某特定污染物之降低，卻造成其他污染物之累積，而增加整體環境毒性風險。本計畫將於二仁溪之支流三爺宮溪永寧橋下游之底泥進行模場試驗，以自行設計之試驗設施進行研究，自然衰減部分將不進行任何工程改變，僅監看各項污染物之濃度演變；生物刺激與生物起始組於本計畫年度將著重於生物刺激，以加入食品級植物油奈米乳化液及其他需要之營養物為主；物理化學吸附回收則以奈米氧化鐵進行重金屬之回收；整合式復育則以結合食品級植物油奈米乳化液與奈米氧化鐵同時進行復育為主要手段。預期本計畫之成果，將完成至少一項低成本高效益之底泥整治技術研發，其衍生效益不僅有助於於我國於河川底泥整治之技術水準提昇，了解實場整治可能產生之技術問題與克服途徑，並能促進底泥生態品質提升及國人健康之維護。

中文關鍵字

多氯聯苯;底泥;重金屬

類型	檔名	檔案大小	說明	最新版公開日期
期末報告	99模場期末報告定稿v3合訂.pdf	3MB		2012/3/1 上午 12:00:00

摘要	River sediments play an imperative role in ecosystems, such as self-cleaning capacity, planktonic habitat, and benthic organismal habitat. Once contaminated, the contaminant may enter human body or other organisms through food chains resulting adverse health effects and detriment of ecosystems. Taking Er-Ren River as an example, the major pollution source is the upstream pig farm discharges. Its downstream merges with Shan-Ye-Gung River and then flows into the sea. This area was famous for it metal recovery using open burning. Both particulate matters deposition and acidic drainage from metal recovery caused severe contamination of this river. According to the literature, among all contaminants, dioxins, polychlorinated biphenyls (PCBs), polyaromatic hydrocarbons (PAHs), and heavy metals received most attentions. Historical data showed (1) dioxins are well below the regulated standards; (2) PCBs are well above the regulated standard; and (3) arsenic and chromium are near to the regulated standards. However, cost-effective remediation technology for this intermixed contamination does not exist. Here, we propose a new remediation technology by integrating biological and physicochemical processes with novel nanomaterials. The special feature of this technology is to assess the success of remediation not only on the removal of target contaminants but also on the water body toxicity after intervention. This approach will assure no accumulation of more toxic substances and true reduction of environmental risks. This pilot study will develop an integrated remediation technology. The study will have four different experiments in parallel, i.e. natural attenuation, biostimulation and bioaugmentation, physiciolchemical adsorption, and integrated remedaition. The results will be evaluated considering the removal or degradation of these three groups of contaminants, i.e., PAHs, PCBs, and heavy metals, in order to avoid to the situation of the decrease of certain contaminants causing the increase of other contaminants. We will employ a self-designed pilot-sutdy structure anchored on the river bed to conduct the four different experiments. The natural attenuation one will have no engineering intervention and all contaminant concentrations will be monitored. Biostimulation and bioaugmentation experiment will focus on biostimulation for the first year study. Food-grade soybean oil nanoemulsion and necessary nutrients will be added into the sediment to stimulate the microorganism growth to degrade the contaminants. Adsorption experiment will employ the in-house synthesized magnetite nanoparticles for recovery of heavy metals. The integrated remeditiaon will conmbine the nanoemsulsion and magnetite nanoparticles approaches. It is expected htat this study will not only improve our understanding in the technical problems in in situ remdiation and possible engineering solutions but also develop cost-effective remediation technologies. We belive this studu will promote Taiwan’s technology levels in sediments remediation , benefit the the river sediment quality and protect our citezens’ health.
英文關鍵字	Sediment;Polychlorinated biphenyls;Heavy metals

摘要

River sediments play an imperative role in ecosystems, such as self-cleaning capacity, planktonic habitat, and benthic organismal habitat. Once contaminated, the contaminant may enter human body or other organisms through food chains resulting adverse health effects and detriment of ecosystems. Taking Er-Ren River as an example, the major pollution source is the upstream pig farm discharges. Its downstream merges with Shan-Ye-Gung River and then flows into the sea. This area was famous for it metal recovery using open burning. Both particulate matters deposition and acidic drainage from metal recovery caused severe contamination of this river. According to the literature, among all contaminants, dioxins, polychlorinated biphenyls (PCBs), polyaromatic hydrocarbons (PAHs), and heavy metals received most attentions. Historical data showed (1) dioxins are well below the regulated standards; (2) PCBs are well above the regulated standard; and (3) arsenic and chromium are near to the regulated standards. However, cost-effective remediation technology for this intermixed contamination does not exist. Here, we propose a new remediation technology by integrating biological and physicochemical processes with novel nanomaterials. The special feature of this technology is to assess the success of remediation not only on the removal of target contaminants but also on the water body toxicity after intervention. This approach will assure no accumulation of more toxic substances and true reduction of environmental risks. This pilot study will develop an integrated remediation technology. The study will have four different experiments in parallel, i.e. natural attenuation, biostimulation and bioaugmentation, physiciolchemical adsorption, and integrated remedaition. The results will be evaluated considering the removal or degradation of these three groups of contaminants, i.e., PAHs, PCBs, and heavy metals, in order to avoid to the situation of the decrease of certain contaminants causing the increase of other contaminants. We will employ a self-designed pilot-sutdy structure anchored on the river bed to conduct the four different experiments. The natural attenuation one will have no engineering intervention and all contaminant concentrations will be monitored. Biostimulation and bioaugmentation experiment will focus on biostimulation for the first year study. Food-grade soybean oil nanoemulsion and necessary nutrients will be added into the sediment to stimulate the microorganism growth to degrade the contaminants. Adsorption experiment will employ the in-house synthesized magnetite nanoparticles for recovery of heavy metals. The integrated remeditiaon will conmbine the nanoemsulsion and magnetite nanoparticles approaches. It is expected htat this study will not only improve our understanding in the technical problems in in situ remdiation and possible engineering solutions but also develop cost-effective remediation technologies. We belive this studu will promote Taiwan’s technology levels in sediments remediation , benefit the the river sediment quality and protect our citezens’ health.

英文關鍵字

Sediment;Polychlorinated biphenyls;Heavy metals