{"title":"利用正向渗透从处理过的废水中生产工程化肥料溶液","authors":"M. Hafez, A. Hawari, A. Altaee","doi":"10.33422/2nd-icarest.2019.06.284","DOIUrl":null,"url":null,"abstract":"Treated sewage effluent (TSE) contains high concentrations of total dissolved solids and nutrients, which makes TSE unsuitable for direct use for irrigation. In this study, forward osmosis (FO) is utilized to produce a fertilizing solution from TSE that can be directly used for irrigation. An engineered fertilizing solution was used as a draw solution while the feed solution was TSE in the forward osmosis process. The engineered fertilizing solution is made of 0.5 M NaCl and 0.01 M of Diammonium phosphate [(NH4)2HPO4]. The effect of feed solution and draw solution flow rate on the permeate flux is studied. Furthermore, the impact of the membrane orientation on the permeate flux is also studied. Results showed that the highest membrane flux was 13.2 LMH, achieved at a flow rate of 2 LPM for the feed solution and the draw solution. Moreover, at 2 LPM flowrate, when the feed solution is facing the active layer of the membrane (FO mode) showed 114% higher permeate flux than when the draw solution is facing the active layer (PRO mode).","PeriodicalId":320278,"journal":{"name":"Proceedings of The 2nd International Conference on Applied Research in Engineering, Science and Technology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Production of an engineered fertilizing solution from treated waste water using forward osmosis\",\"authors\":\"M. Hafez, A. Hawari, A. Altaee\",\"doi\":\"10.33422/2nd-icarest.2019.06.284\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Treated sewage effluent (TSE) contains high concentrations of total dissolved solids and nutrients, which makes TSE unsuitable for direct use for irrigation. In this study, forward osmosis (FO) is utilized to produce a fertilizing solution from TSE that can be directly used for irrigation. An engineered fertilizing solution was used as a draw solution while the feed solution was TSE in the forward osmosis process. The engineered fertilizing solution is made of 0.5 M NaCl and 0.01 M of Diammonium phosphate [(NH4)2HPO4]. The effect of feed solution and draw solution flow rate on the permeate flux is studied. Furthermore, the impact of the membrane orientation on the permeate flux is also studied. Results showed that the highest membrane flux was 13.2 LMH, achieved at a flow rate of 2 LPM for the feed solution and the draw solution. Moreover, at 2 LPM flowrate, when the feed solution is facing the active layer of the membrane (FO mode) showed 114% higher permeate flux than when the draw solution is facing the active layer (PRO mode).\",\"PeriodicalId\":320278,\"journal\":{\"name\":\"Proceedings of The 2nd International Conference on Applied Research in Engineering, Science and Technology\",\"volume\":\"18 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-06-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of The 2nd International Conference on Applied Research in Engineering, Science and Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.33422/2nd-icarest.2019.06.284\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of The 2nd International Conference on Applied Research in Engineering, Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.33422/2nd-icarest.2019.06.284","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
处理后的污水(TSE)含有高浓度的总溶解固体和营养物质,这使得TSE不适合直接用于灌溉。在本研究中,利用正向渗透(FO)从TSE中产生可直接用于灌溉的肥料溶液。在正向渗透过程中,以工程施肥液为引液,进料液为TSE。工程肥料由0.5 M NaCl和0.01 M磷酸二铵[(NH4)2HPO4]组成。研究了进料液流速和引液流速对渗透通量的影响。此外,还研究了膜取向对渗透通量的影响。结果表明,进料液和提取液在2 LPM的流速下,膜通量最高可达13.2 LPM。在2 LPM流速下,进料液面向膜活性层时(FO模式)的渗透通量比提取液面向膜活性层时(PRO模式)的渗透通量高114%。
Production of an engineered fertilizing solution from treated waste water using forward osmosis
Treated sewage effluent (TSE) contains high concentrations of total dissolved solids and nutrients, which makes TSE unsuitable for direct use for irrigation. In this study, forward osmosis (FO) is utilized to produce a fertilizing solution from TSE that can be directly used for irrigation. An engineered fertilizing solution was used as a draw solution while the feed solution was TSE in the forward osmosis process. The engineered fertilizing solution is made of 0.5 M NaCl and 0.01 M of Diammonium phosphate [(NH4)2HPO4]. The effect of feed solution and draw solution flow rate on the permeate flux is studied. Furthermore, the impact of the membrane orientation on the permeate flux is also studied. Results showed that the highest membrane flux was 13.2 LMH, achieved at a flow rate of 2 LPM for the feed solution and the draw solution. Moreover, at 2 LPM flowrate, when the feed solution is facing the active layer of the membrane (FO mode) showed 114% higher permeate flux than when the draw solution is facing the active layer (PRO mode).