생물담체 공정을 기반으로 한 생물학적 질소 제거의 기술 개발 동향: 리뷰

( Jesmin Akter ),( Hiyaw Hatiya Ware ),이재엽 ( Jae-yeop Lee ),김일호 ( Ilho Kim ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-

This review paper summarizes biological nitrogen removal based on the bio-media filtration process. Biological filtration using the bio-media filtration technique that utilizes biological micro-organisms to remove nutrients from the wastewater. The main two strategies for the removal of nitrogen from domestic wastewater are nitrification and denitrification. Nitrification is carried out in two steps. First, ammonia (NH3) is converted to nitrite (NO2 -) by ammonia-oxidizing bacteria (AOB) and the second step, nitrite-oxidizing bacteria (NOB) convert nitrite to nitrate (NO3 -). Denitrification is an anoxic process whereby NO3 - is converted to nitrogen gas (N2) by heterotrophic microorganisms using a carbon source as the electron donor. In domestic wastewater, nitrogen originates from waste products of the human body and other organic waste materials. Because eutrophication and nitrate is a risk to human health, the removal of nitrogen from wastewater has become a worldwide concern. A recent study has been shown that various bio-media efficiently used for nitrification and denitrification process, also the growth of biofilm is the potential for ammonia removal. Therefore, the specific surface area of bio-media is available for bio-film growth depends on media types and texture influenced nitrification. The objective of this paper is to describe the bio media treatment process in the biological treatment system for sustainable development in the nitrogen removal process.

생물담체 공정을 기반으로 한 생물학적 질소 제거의 기술 개발 동향: 리뷰

( Jesmin Akter ),( Hiyaw Hatiya Ware ),이재엽 ( Jae-yeop Lee ),김일호 ( Ilho Kim ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-

This review paper summarizes biological nitrogen removal based on the bio-media filtration process. Biological filtration using the bio-media filtration technique that utilizes biological micro-organisms to remove nutrients from the wastewater. The main two strategies for the removal of nitrogen from domestic wastewater are nitrification and denitrification. Nitrification is carried out in two steps. First, ammonia (NH3) is converted to nitrite (NO2 -) by ammonia-oxidizing bacteria (AOB) and the second step, nitrite-oxidizing bacteria (NOB) convert nitrite to nitrate (NO3 -). Denitrification is an anoxic process whereby NO3 - is converted to nitrogen gas (N2) by heterotrophic microorganisms using a carbon source as the electron donor. In domestic wastewater, nitrogen originates from waste products of the human body and other organic waste materials. Because eutrophication and nitrate is a risk to human health, the removal of nitrogen from wastewater has become a worldwide concern. A recent study has been shown that various bio-media efficiently used for nitrification and denitrification process, also the growth of biofilm is the potential for ammonia removal. Therefore, the specific surface area of bio-media is available for bio-film growth depends on media types and texture influenced nitrification. The objective of this paper is to describe the bio media treatment process in the biological treatment system for sustainable development in the nitrogen removal process.

생물담체 공정을 기반으로 한 생물학적 질소 제거의 기술 개발 동향: 리뷰

( Jesmin Akter ),( Hiyaw Hatiya Ware ),이재엽 ( Jae-yeop Lee ),김일호 ( Ilho Kim ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-

This review paper summarizes biological nitrogen removal based on the bio-media filtration process. Biological filtration using the bio-media filtration technique that utilizes biological micro-organisms to remove nutrients from the wastewater. The main two strategies for the removal of nitrogen from domestic wastewater are nitrification and denitrification. Nitrification is carried out in two steps. First, ammonia (NH3) is converted to nitrite (NO2 -) by ammonia-oxidizing bacteria (AOB) and the second step, nitrite-oxidizing bacteria (NOB) convert nitrite to nitrate (NO3 -). Denitrification is an anoxic process whereby NO3 - is converted to nitrogen gas (N2) by heterotrophic microorganisms using a carbon source as the electron donor. In domestic wastewater, nitrogen originates from waste products of the human body and other organic waste materials. Because eutrophication and nitrate is a risk to human health, the removal of nitrogen from wastewater has become a worldwide concern. A recent study has been shown that various bio-media efficiently used for nitrification and denitrification process, also the growth of biofilm is the potential for ammonia removal. Therefore, the specific surface area of bio-media is available for bio-film growth depends on media types and texture influenced nitrification. The objective of this paper is to describe the bio media treatment process in the biological treatment system for sustainable development in the nitrogen removal process.

하수 2차 처리수의 UV/H₂O₂ 처리

김일호 ( Ilho Kim ),( Hiyaw Hatiya Ware ),( Jesmin Akter ),이재엽 ( Jae-yeop Lee ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-

This paper summarizes the effect of various initial H₂O₂ concentration on the removal of TOC from the tested water. UV/H₂O₂ process consider the most suitable method for the removal of organic pollutants in the tested water. various range of dose of H₂O₂ were used thus 20, 50, and 100 mg/L. UV only process also consider to compare the impact of H₂O₂ in the removal of TOC from tested water. For the tested water 9% TOC removal were achieved using UV only process. considering the tested water was actual treated sewage (secondary) the impact of UV in the removal efficiency seems good. Half of the TOC concentration were removed in the end experiment for the tested water and the maximum dose of H₂O₂ produce the highest removal efficiency. The final treated effluent sample TOC concentration was 4 mg/L within 420 seconds only. In this experiment UV/H₂O₂ with 50 mg/L dose shows 44% of TOC removal with only 300 seconds contact time. The removal rate for UV/H₂O₂ with 100 mg/L after 300 second shows less change compare to the 50mg/L H₂O₂ dose. It seems the removal efficiency did not increase as expected due to the formation of the hydroxyl radical from the H₂O₂ was not visible as expected from the result to react with the tested water pollutants. even if the degradation rate of the H₂O₂ was high it does not indicate the formation of hydroxyl radical ruther it will act as scavengers for the tested water. Further investigation can be done for the actual treated sewage since most research area focus on the synthesis kind of tested water. it will show us the actual impact of UV/H₂O₂ process in sewage treatment plant.

UV/H₂O₂ 공정에서 램프 출력에 따른 하수처리수 내 PPCPs 제거

김일호 ( Ilho Kim ),( Hiyaw Hatiya Ware ),( Jesmin Akter ),이재엽 ( Jae-yeop Lee ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-

PPCPs are one of the emerging contaminants in aqueous solution. These compounds are low in concentration and difficult to detect that range from ng/l to μg/l. previous studies shows the difficulty of removal these compounds using conventional methods due to technology barrier with detection equipment, but current research seems to solve these problems due to the advancement of technology. UV/H₂O₂ are One of prior technology process that researcher used to study and remove these compounds to the range of non-detectable value. In this experiment, the removal of PPCPs compound to the range of non-detected value from treated sewage using UV/H₂O₂ process was the main focus area. The objective were to investigate the Optimal UV lamp output power in the removal of these emerging contaminants using UV/H₂O₂ process. 20% (1.6KW) UV-Output was used and comparison were made with other literature review with respect to the characteristics of effluent of treated sewage. Removal of TOC were also included in this experiment. For this experiment actual sewage were used and medium pressure lamp. Propranolol were undetected after the experiment in the actual treated sewage using LC-MSMS apparatus to the UV lamp output power. Detail information were given on the materials and methods and also result were discussed plus conclusion was made in this paper.

UV/H₂O₂ 공정에서 램프 출력에 따른 하수처리수 내 PPCPs 제거

김일호 ( Ilho Kim ),( Hiyaw Hatiya Ware ),( Jesmin Akter ),이재엽 ( Jae-yeop Lee ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-

PPCPs are one of the emerging contaminants in aqueous solution. These compounds are low in concentration and difficult to detect that range from ng/l to μg/l. previous studies shows the difficulty of removal these compounds using conventional methods due to technology barrier with detection equipment, but current research seems to solve these problems due to the advancement of technology. UV/H₂O₂ are One of prior technology process that researcher used to study and remove these compounds to the range of non-detectable value. In this experiment, the removal of PPCPs compound to the range of non-detected value from treated sewage using UV/H₂O₂ process was the main focus area. The objective were to investigate the Optimal UV lamp output power in the removal of these emerging contaminants using UV/H₂O₂ process. 20% (1.6KW) UV-Output was used and comparison were made with other literature review with respect to the characteristics of effluent of treated sewage. Removal of TOC were also included in this experiment. For this experiment actual sewage were used and medium pressure lamp. Propranolol were undetected after the experiment in the actual treated sewage using LC-MSMS apparatus to the UV lamp output power. Detail information were given on the materials and methods and also result were discussed plus conclusion was made in this paper.

UV/H₂O₂ 공정에서 램프 출력에 따른 하수처리수 내 PPCPs 제거

김일호 ( Ilho Kim ),( Hiyaw Hatiya Ware ),( Jesmin Akter ),이재엽 ( Jae-yeop Lee ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-

PPCPs are one of the emerging contaminants in aqueous solution. These compounds are low in concentration and difficult to detect that range from ng/l to μg/l. previous studies shows the difficulty of removal these compounds using conventional methods due to technology barrier with detection equipment, but current research seems to solve these problems due to the advancement of technology. UV/H₂O₂ are One of prior technology process that researcher used to study and remove these compounds to the range of non-detectable value. In this experiment, the removal of PPCPs compound to the range of non-detected value from treated sewage using UV/H₂O₂ process was the main focus area. The objective were to investigate the Optimal UV lamp output power in the removal of these emerging contaminants using UV/H₂O₂ process. 20% (1.6KW) UV-Output was used and comparison were made with other literature review with respect to the characteristics of effluent of treated sewage. Removal of TOC were also included in this experiment. For this experiment actual sewage were used and medium pressure lamp. Propranolol were undetected after the experiment in the actual treated sewage using LC-MSMS apparatus to the UV lamp output power. Detail information were given on the materials and methods and also result were discussed plus conclusion was made in this paper.

하수 2차 처리수의 UV/H₂O₂ 처리

김일호 ( Ilho Kim ),( Hiyaw Hatiya Ware ),( Jesmin Akter ),이재엽 ( Jae-yeop Lee ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-

This paper summarizes the effect of various initial H₂O₂ concentration on the removal of TOC from the tested water. UV/H₂O₂ process consider the most suitable method for the removal of organic pollutants in the tested water. various range of dose of H₂O₂ were used thus 20, 50, and 100 mg/L. UV only process also consider to compare the impact of H₂O₂ in the removal of TOC from tested water. For the tested water 9% TOC removal were achieved using UV only process. considering the tested water was actual treated sewage (secondary) the impact of UV in the removal efficiency seems good. Half of the TOC concentration were removed in the end experiment for the tested water and the maximum dose of H₂O₂ produce the highest removal efficiency. The final treated effluent sample TOC concentration was 4 mg/L within 420 seconds only. In this experiment UV/H₂O₂ with 50 mg/L dose shows 44% of TOC removal with only 300 seconds contact time. The removal rate for UV/H₂O₂ with 100 mg/L after 300 second shows less change compare to the 50mg/L H₂O₂ dose. It seems the removal efficiency did not increase as expected due to the formation of the hydroxyl radical from the H₂O₂ was not visible as expected from the result to react with the tested water pollutants. even if the degradation rate of the H₂O₂ was high it does not indicate the formation of hydroxyl radical ruther it will act as scavengers for the tested water. Further investigation can be done for the actual treated sewage since most research area focus on the synthesis kind of tested water. it will show us the actual impact of UV/H₂O₂ process in sewage treatment plant.

하수 2차 처리수의 UV/H₂O₂ 처리

김일호 ( Ilho Kim ),( Hiyaw Hatiya Ware ),( Jesmin Akter ),이재엽 ( Jae-yeop Lee ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-

This paper summarizes the effect of various initial H₂O₂ concentration on the removal of TOC from the tested water. UV/H₂O₂ process consider the most suitable method for the removal of organic pollutants in the tested water. various range of dose of H₂O₂ were used thus 20, 50, and 100 mg/L. UV only process also consider to compare the impact of H₂O₂ in the removal of TOC from tested water. For the tested water 9% TOC removal were achieved using UV only process. considering the tested water was actual treated sewage (secondary) the impact of UV in the removal efficiency seems good. Half of the TOC concentration were removed in the end experiment for the tested water and the maximum dose of H₂O₂ produce the highest removal efficiency. The final treated effluent sample TOC concentration was 4 mg/L within 420 seconds only. In this experiment UV/H₂O₂ with 50 mg/L dose shows 44% of TOC removal with only 300 seconds contact time. The removal rate for UV/H₂O₂ with 100 mg/L after 300 second shows less change compare to the 50mg/L H₂O₂ dose. It seems the removal efficiency did not increase as expected due to the formation of the hydroxyl radical from the H₂O₂ was not visible as expected from the result to react with the tested water pollutants. even if the degradation rate of the H₂O₂ was high it does not indicate the formation of hydroxyl radical ruther it will act as scavengers for the tested water. Further investigation can be done for the actual treated sewage since most research area focus on the synthesis kind of tested water. it will show us the actual impact of UV/H₂O₂ process in sewage treatment plant.