{"title":"潮汐河中铵态氮运移的研究","authors":"H. Yamanishi, Yuka Aoki","doi":"10.2965/JSWE.42.117","DOIUrl":null,"url":null,"abstract":"This study was aimed at investigating the influence of a sewage treatment plant’s seasonal operation on the water quality and nutrient transport of a tidal river. Cross-sectional observations were carried out in the Honjoe River, which flows into Ariake Bay in Japan. Field surveys and experiments focusing on the transport of ammonium nitrogen ( NH 4 + -N ) in the tidal river were performed. As a result, suspended solid ( SS ) sediment formation close to the river, including in the vegetation areas, was accelerated and exhibited the potential local accumulation of NH 4 + -N with SS. In addition, some experiments revealed an empirical equation for the removal rate of NH 4 + -N. According to the equation, the NH 4 + -N sedimentation rates tended to be low when the salinity and initial SS were high. Furthermore, the removal rate of NH 4 + -N calculated using the empirical equation agreed qualitatively with the field results.","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"55 4","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Consideration of Transport of Ammonium Nitrogen in a Tidal River\",\"authors\":\"H. Yamanishi, Yuka Aoki\",\"doi\":\"10.2965/JSWE.42.117\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This study was aimed at investigating the influence of a sewage treatment plant’s seasonal operation on the water quality and nutrient transport of a tidal river. Cross-sectional observations were carried out in the Honjoe River, which flows into Ariake Bay in Japan. Field surveys and experiments focusing on the transport of ammonium nitrogen ( NH 4 + -N ) in the tidal river were performed. As a result, suspended solid ( SS ) sediment formation close to the river, including in the vegetation areas, was accelerated and exhibited the potential local accumulation of NH 4 + -N with SS. In addition, some experiments revealed an empirical equation for the removal rate of NH 4 + -N. According to the equation, the NH 4 + -N sedimentation rates tended to be low when the salinity and initial SS were high. Furthermore, the removal rate of NH 4 + -N calculated using the empirical equation agreed qualitatively with the field results.\",\"PeriodicalId\":16300,\"journal\":{\"name\":\"Journal of Japan Society on Water Environment\",\"volume\":\"55 4\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Japan Society on Water Environment\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2965/JSWE.42.117\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Japan Society on Water Environment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2965/JSWE.42.117","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Consideration of Transport of Ammonium Nitrogen in a Tidal River
This study was aimed at investigating the influence of a sewage treatment plant’s seasonal operation on the water quality and nutrient transport of a tidal river. Cross-sectional observations were carried out in the Honjoe River, which flows into Ariake Bay in Japan. Field surveys and experiments focusing on the transport of ammonium nitrogen ( NH 4 + -N ) in the tidal river were performed. As a result, suspended solid ( SS ) sediment formation close to the river, including in the vegetation areas, was accelerated and exhibited the potential local accumulation of NH 4 + -N with SS. In addition, some experiments revealed an empirical equation for the removal rate of NH 4 + -N. According to the equation, the NH 4 + -N sedimentation rates tended to be low when the salinity and initial SS were high. Furthermore, the removal rate of NH 4 + -N calculated using the empirical equation agreed qualitatively with the field results.