Application of Chitosan and Activated Carbon Nano-composite in Removal of Nitrite, Phosphate, and Ammonia From Aquaculture Wastewater
Developing an adsorbent with natural components is one of the effective methods to reduce the amount of wastewater pollutants. Wastewater reuse can improve the quality of water prior to entering the natural environment. The aim of this study was to evaluate the efficiency of chitosan nano-composite...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Hamadan University of Medical Sciences
2019-12-01
|
| Series: | Avicenna Journal of Environmental Health Engineering |
| Subjects: | |
| Online Access: | http://ajehe.umsha.ac.ir/PDF/ajehe-4116 |
| _version_ | 1797670201467076608 |
|---|---|
| author | Hassan Rezaei Saeedeh Rastegar Sanaz Naseri |
| author_facet | Hassan Rezaei Saeedeh Rastegar Sanaz Naseri |
| author_sort | Hassan Rezaei |
| collection | DOAJ |
| description | Developing an adsorbent with natural components is one of the effective methods to reduce the amount of wastewater pollutants. Wastewater reuse can improve the quality of water prior to entering the natural environment. The aim of this study was to evaluate the efficiency of chitosan nano-composite and activated carbon adsorbent in the removal of nitrite, phosphate, and ammonia pollutants from fish farms of Aq-Qala. To prepare the adsorbents, the shrimp shells were converted to nano-chitosan. The date palm kernel was prepared and activated with oxalic acid in pyrolysis furnace by injecting nitrogen gas into activated carbon, then, the nano-composite was prepared from nanochitosan and activated carbon. A field-laboratory study was conducted during the winter of 2018, and then, batches of synthesized nano-composite were investigated and the effects of pH, initial effluent concentration, and adsorption time were investigated. The experiments were performed in the pH range of 5-8, effluent concentration of 25-100 mg/L, and contact time of 15-90 minutes. The results showed that at optimum conditions (pH of 7, effluent concentration of 50 mg/L, and contact time of 60 minutes), the highest removal percentage and adsorption capacity for nitrite, phosphate, and ammonia contaminants were 99.98%, 99.77%, and 65.65%, and 6.65, 6.14, and 7.32 mg/g , respectively. Due to the high removal percentage (99.98%) of the chitosan and activated carbon nano-composite, the adsorbent was highly capable of removing pollutants (nitrite, phosphate, and ammonia). |
| first_indexed | 2024-03-11T20:56:18Z |
| format | Article |
| id | doaj.art-ed7bbe2a1ef140ce9260a39de97d6902 |
| institution | Directory Open Access Journal |
| issn | 2423-4583 |
| language | English |
| last_indexed | 2024-03-11T20:56:18Z |
| publishDate | 2019-12-01 |
| publisher | Hamadan University of Medical Sciences |
| record_format | Article |
| series | Avicenna Journal of Environmental Health Engineering |
| spelling | doaj.art-ed7bbe2a1ef140ce9260a39de97d69022023-09-30T09:44:35ZengHamadan University of Medical SciencesAvicenna Journal of Environmental Health Engineering2423-45832019-12-016210611210.34172/ajehe.2019.14ajehe-4116Application of Chitosan and Activated Carbon Nano-composite in Removal of Nitrite, Phosphate, and Ammonia From Aquaculture WastewaterHassan Rezaei0Saeedeh Rastegar1Sanaz Naseri2Department of Environmental Sciences, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Recourses, Environmental Sciences ,Gorgan, Iran.Department of Environmental Sciences, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Recourses, Environmental Sciences ,Gorgan, Iran.Department of Environmental Sciences, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Recourses, Environmental Sciences ,Gorgan, Iran.Developing an adsorbent with natural components is one of the effective methods to reduce the amount of wastewater pollutants. Wastewater reuse can improve the quality of water prior to entering the natural environment. The aim of this study was to evaluate the efficiency of chitosan nano-composite and activated carbon adsorbent in the removal of nitrite, phosphate, and ammonia pollutants from fish farms of Aq-Qala. To prepare the adsorbents, the shrimp shells were converted to nano-chitosan. The date palm kernel was prepared and activated with oxalic acid in pyrolysis furnace by injecting nitrogen gas into activated carbon, then, the nano-composite was prepared from nanochitosan and activated carbon. A field-laboratory study was conducted during the winter of 2018, and then, batches of synthesized nano-composite were investigated and the effects of pH, initial effluent concentration, and adsorption time were investigated. The experiments were performed in the pH range of 5-8, effluent concentration of 25-100 mg/L, and contact time of 15-90 minutes. The results showed that at optimum conditions (pH of 7, effluent concentration of 50 mg/L, and contact time of 60 minutes), the highest removal percentage and adsorption capacity for nitrite, phosphate, and ammonia contaminants were 99.98%, 99.77%, and 65.65%, and 6.65, 6.14, and 7.32 mg/g , respectively. Due to the high removal percentage (99.98%) of the chitosan and activated carbon nano-composite, the adsorbent was highly capable of removing pollutants (nitrite, phosphate, and ammonia).http://ajehe.umsha.ac.ir/PDF/ajehe-4116adsorbentactivated carbonnano-compositewastewaterchitosan |
| spellingShingle | Hassan Rezaei Saeedeh Rastegar Sanaz Naseri Application of Chitosan and Activated Carbon Nano-composite in Removal of Nitrite, Phosphate, and Ammonia From Aquaculture Wastewater Avicenna Journal of Environmental Health Engineering adsorbent activated carbon nano-composite wastewater chitosan |
| title | Application of Chitosan and Activated Carbon Nano-composite in Removal of Nitrite, Phosphate, and Ammonia From Aquaculture Wastewater |
| title_full | Application of Chitosan and Activated Carbon Nano-composite in Removal of Nitrite, Phosphate, and Ammonia From Aquaculture Wastewater |
| title_fullStr | Application of Chitosan and Activated Carbon Nano-composite in Removal of Nitrite, Phosphate, and Ammonia From Aquaculture Wastewater |
| title_full_unstemmed | Application of Chitosan and Activated Carbon Nano-composite in Removal of Nitrite, Phosphate, and Ammonia From Aquaculture Wastewater |
| title_short | Application of Chitosan and Activated Carbon Nano-composite in Removal of Nitrite, Phosphate, and Ammonia From Aquaculture Wastewater |
| title_sort | application of chitosan and activated carbon nano composite in removal of nitrite phosphate and ammonia from aquaculture wastewater |
| topic | adsorbent activated carbon nano-composite wastewater chitosan |
| url | http://ajehe.umsha.ac.ir/PDF/ajehe-4116 |
| work_keys_str_mv | AT hassanrezaei applicationofchitosanandactivatedcarbonnanocompositeinremovalofnitritephosphateandammoniafromaquaculturewastewater AT saeedehrastegar applicationofchitosanandactivatedcarbonnanocompositeinremovalofnitritephosphateandammoniafromaquaculturewastewater AT sanaznaseri applicationofchitosanandactivatedcarbonnanocompositeinremovalofnitritephosphateandammoniafromaquaculturewastewater |