Pub Date : 2019-08-30DOI: 10.11001/jksww.2019.33.4.291
Johwan Ahn
Phosphorus is a vital resource for sustaining agriculture and nutrition, but a limited non-renewable resource. Thus, the recovery of phosphorus from waste activated sludge(WAS) was attempted by microwave heating and magnesium ammonium phosphorus(MAP) crystallization. Polyphosphate-accumulating organisms(PAOs) in WAS release phosphate from the cell when they are exposed to high temperature environments. Microwave heating caused phosphorus and ammonia to release from WAS. The amount was increased with increasing temperature, showing that 88.5% of polyphosphate present in the cells were released in the form of phosphate at 80C. A similar result was also observed in the release of ammonia. On the other hand, both phosphorus and ammonia were crystallized with magnesium, and then was harvested as MAP. Phosphorus recovery rate reached almost 97.8%, but the ammonia was about 13.4%. These results cleary indicate that phosphorus could be recovered from WAS using a physiological trait of PAOs. Heavy metal analyses also show that the MAP crystal is useful and safe as a phosphorus fertilizer.
{"title":"Recovery of phosphorus from waste activated sludge by microwave heating and MAP crystallization","authors":"Johwan Ahn","doi":"10.11001/jksww.2019.33.4.291","DOIUrl":"https://doi.org/10.11001/jksww.2019.33.4.291","url":null,"abstract":"Phosphorus is a vital resource for sustaining agriculture and nutrition, but a limited non-renewable resource. Thus, the recovery of phosphorus from waste activated sludge(WAS) was attempted by microwave heating and magnesium ammonium phosphorus(MAP) crystallization. Polyphosphate-accumulating organisms(PAOs) in WAS release phosphate from the cell when they are exposed to high temperature environments. Microwave heating caused phosphorus and ammonia to release from WAS. The amount was increased with increasing temperature, showing that 88.5% of polyphosphate present in the cells were released in the form of phosphate at 80C. A similar result was also observed in the release of ammonia. On the other hand, both phosphorus and ammonia were crystallized with magnesium, and then was harvested as MAP. Phosphorus recovery rate reached almost 97.8%, but the ammonia was about 13.4%. These results cleary indicate that phosphorus could be recovered from WAS using a physiological trait of PAOs. Heavy metal analyses also show that the MAP crystal is useful and safe as a phosphorus fertilizer.","PeriodicalId":382478,"journal":{"name":"Journal of the Korean Society of Water and Wastewater","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123490158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-08-30DOI: 10.11001/jksww.2019.33.4.311
Hoyoung Jung, Younghee Kim
{"title":"Effectiveness of elimination inflowing algae in water treatment plant using natural algae remover","authors":"Hoyoung Jung, Younghee Kim","doi":"10.11001/jksww.2019.33.4.311","DOIUrl":"https://doi.org/10.11001/jksww.2019.33.4.311","url":null,"abstract":"","PeriodicalId":382478,"journal":{"name":"Journal of the Korean Society of Water and Wastewater","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116738863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-08-30DOI: 10.11001/jksww.2019.33.4.251
Heegon Kim, Duckshin Park, Byungryul An
{"title":"The application of multifunctional metal oxide for wastewater treatment: Adsorption and disinfection","authors":"Heegon Kim, Duckshin Park, Byungryul An","doi":"10.11001/jksww.2019.33.4.251","DOIUrl":"https://doi.org/10.11001/jksww.2019.33.4.251","url":null,"abstract":"","PeriodicalId":382478,"journal":{"name":"Journal of the Korean Society of Water and Wastewater","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122686951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-08-30DOI: 10.11001/jksww.2019.33.4.243
Gwan-Woo Shin, Seung-Kyu Choi, Jin-su Kim, Qian Zhu, kyoungja Weon, Sang-Ill Lee
{"title":"Characteristics of phenol degradation by using underwater dielectric barrier discharge plasma","authors":"Gwan-Woo Shin, Seung-Kyu Choi, Jin-su Kim, Qian Zhu, kyoungja Weon, Sang-Ill Lee","doi":"10.11001/jksww.2019.33.4.243","DOIUrl":"https://doi.org/10.11001/jksww.2019.33.4.243","url":null,"abstract":"","PeriodicalId":382478,"journal":{"name":"Journal of the Korean Society of Water and Wastewater","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130948619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-30DOI: 10.11001/JKSWW.2019.33.3.191
Sung-Hyo Lee, Seong-Nam Nam, Jeill Oh
{"title":"Comparison of inactivation and sensitivity of antibiotic resistance bacteria by ultrasound irradiation","authors":"Sung-Hyo Lee, Seong-Nam Nam, Jeill Oh","doi":"10.11001/JKSWW.2019.33.3.191","DOIUrl":"https://doi.org/10.11001/JKSWW.2019.33.3.191","url":null,"abstract":"","PeriodicalId":382478,"journal":{"name":"Journal of the Korean Society of Water and Wastewater","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126745207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-30DOI: 10.11001/JKSWW.2019.33.3.205
Byungryul An
{"title":"Applicability of adsorption kinetic model for cation/anion for chitosan hydrogel bead","authors":"Byungryul An","doi":"10.11001/JKSWW.2019.33.3.205","DOIUrl":"https://doi.org/10.11001/JKSWW.2019.33.3.205","url":null,"abstract":"","PeriodicalId":382478,"journal":{"name":"Journal of the Korean Society of Water and Wastewater","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130618311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-30DOI: 10.11001/JKSWW.2019.33.3.215
Kuksun Hwang, Donghyeok Shin, In-Soo Jeong, Sungje Park, Insoo Chang, Jeongbae Kim, Jeongdong Choi
{"title":"Performance of sequencing batch reactor under aeration-limited condition and characteristics of microbial community change","authors":"Kuksun Hwang, Donghyeok Shin, In-Soo Jeong, Sungje Park, Insoo Chang, Jeongbae Kim, Jeongdong Choi","doi":"10.11001/JKSWW.2019.33.3.215","DOIUrl":"https://doi.org/10.11001/JKSWW.2019.33.3.215","url":null,"abstract":"","PeriodicalId":382478,"journal":{"name":"Journal of the Korean Society of Water and Wastewater","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124057348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-30DOI: 10.11001/JKSWW.2019.33.3.225
Seulki Lee, Seong-ho Hong, Yeonwoo Kwak
{"title":"Effects of TDS on formation of THMs in drinking water treatment","authors":"Seulki Lee, Seong-ho Hong, Yeonwoo Kwak","doi":"10.11001/JKSWW.2019.33.3.225","DOIUrl":"https://doi.org/10.11001/JKSWW.2019.33.3.225","url":null,"abstract":"","PeriodicalId":382478,"journal":{"name":"Journal of the Korean Society of Water and Wastewater","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116897784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-30DOI: 10.11001/JKSWW.2019.33.3.177
Jungsub Shin, S. Han, J. Yook, Chun-Won Lee, Seon-Hong Kang
{"title":"Effect of infiltration/inflow by rainfall for sewerage facilities in the area with partially separate sewer system","authors":"Jungsub Shin, S. Han, J. Yook, Chun-Won Lee, Seon-Hong Kang","doi":"10.11001/JKSWW.2019.33.3.177","DOIUrl":"https://doi.org/10.11001/JKSWW.2019.33.3.177","url":null,"abstract":"","PeriodicalId":382478,"journal":{"name":"Journal of the Korean Society of Water and Wastewater","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127228825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-30DOI: 10.11001/JKSWW.2019.33.2.131
Se-keun Park, Yeong-Kwan Kim
This study used a packed column reactor and a horizontal flow mesh reactor to examine the removal of copper ions from aqueous solutions using pine bark, a natural adsorbent prepared from Korean red pine (Pinus densiflora). Both equilibrium and nonequilibrium adsorption experiments were conducted on copper ion concentrations of 10mg/L, and the removals of copper ions at equilibrium were close to 95%. Adsorption of copper ions could be well described by both the Langmuir and Freundlich adsorption isotherms. The bark was treated with nitric acid to enhance efficiency of copper removal, and sorption capacity was improved by about 48% at equilibrium; mechanisms such as ion exchange and chelation may have been involved in the sorption process. A pseudo second-order kinetic model described the kinetic behavior of the copper ion adsorption onto the bark. Regeneration with nitric acid resulted in extended use of spent bark in the packed column. The horizontal flow mesh reactor allowed approximately 80% removal efficiency, demonstrating its operational flexibility and the potential for its practical use as a bark filter reactor.
{"title":"Adsorption of copper ions from aqueous solution using surface modified pine bark media","authors":"Se-keun Park, Yeong-Kwan Kim","doi":"10.11001/JKSWW.2019.33.2.131","DOIUrl":"https://doi.org/10.11001/JKSWW.2019.33.2.131","url":null,"abstract":"This study used a packed column reactor and a horizontal flow mesh reactor to examine the removal of copper ions from aqueous solutions using pine bark, a natural adsorbent prepared from Korean red pine (Pinus densiflora). Both equilibrium and nonequilibrium adsorption experiments were conducted on copper ion concentrations of 10mg/L, and the removals of copper ions at equilibrium were close to 95%. Adsorption of copper ions could be well described by both the Langmuir and Freundlich adsorption isotherms. The bark was treated with nitric acid to enhance efficiency of copper removal, and sorption capacity was improved by about 48% at equilibrium; mechanisms such as ion exchange and chelation may have been involved in the sorption process. A pseudo second-order kinetic model described the kinetic behavior of the copper ion adsorption onto the bark. Regeneration with nitric acid resulted in extended use of spent bark in the packed column. The horizontal flow mesh reactor allowed approximately 80% removal efficiency, demonstrating its operational flexibility and the potential for its practical use as a bark filter reactor.","PeriodicalId":382478,"journal":{"name":"Journal of the Korean Society of Water and Wastewater","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129952599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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