High removal efficiency of volatile phenol from coking wastewater using coal gasification slag via optimized adsorption and multi-grade batch process
Powder adsorbent made by coal gasification slag (CGS) was used to adsorb pollutants from coking wastewater (CW). This study initially focused on the removal efficiency of volatile phenol, NH3–N, and chemical oxygen demand (COD) from CW. The removal rate of volatile phenol increased from 48.90% to 70...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-12-01
|
| Series: | Green Processing and Synthesis |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/gps-2022-8130 |
| _version_ | 1797848720260202496 |
|---|---|
| author | Su Ting Xianyu Bozhou Gao Wenwen Gao Yanli Gao Pingqiang Lu Cuiying |
| author_facet | Su Ting Xianyu Bozhou Gao Wenwen Gao Yanli Gao Pingqiang Lu Cuiying |
| author_sort | Su Ting |
| collection | DOAJ |
| description | Powder adsorbent made by coal gasification slag (CGS) was used to adsorb pollutants from coking wastewater (CW). This study initially focused on the removal efficiency of volatile phenol, NH3–N, and chemical oxygen demand (COD) from CW. The removal rate of volatile phenol increased from 48.90% to 70.50% after acid precipitation of CW by 4.0 mL reagent of sulfuric acid (3.0 M) and optimization of adsorption process by central composite design-response surface methodology with optimized conditions. Volume ratio of liquid and solid adsorbent (V
L/S) and pH were the significant factors in the adsorption process. Batch experiment improved the volatile phenol, NH3–N, and COD removal rate to 85.1%, 41.6%, and 77.3%, respectively. Multi-grade batch process in grade 3 made a further promotion of pollutants removal rate as 98.5%, 73.6%, and 80.5%, respectively. Scanning electron microscope-energy dispersive spectrum and Fourier-transform infrared spectrometer were used to confirm the adsorption effect. CGS-based adsorbent for CW treatment has potential advantages due to the features of good adsorption performance and low cost. |
| first_indexed | 2024-04-09T18:32:11Z |
| format | Article |
| id | doaj.art-ac073ce392234a92b7c5985b8a04ece8 |
| institution | Directory Open Access Journal |
| issn | 2191-9550 |
| language | English |
| last_indexed | 2024-04-09T18:32:11Z |
| publishDate | 2022-12-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Green Processing and Synthesis |
| spelling | doaj.art-ac073ce392234a92b7c5985b8a04ece82023-04-11T17:07:16ZengDe GruyterGreen Processing and Synthesis2191-95502022-12-0112111410.1515/gps-2022-8130High removal efficiency of volatile phenol from coking wastewater using coal gasification slag via optimized adsorption and multi-grade batch processSu Ting0Xianyu Bozhou1Gao Wenwen2Gao Yanli3Gao Pingqiang4Lu Cuiying5School of Chemistry and Chemical Engineering, YuLin University, Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin 719000, ChinaSchool of Chemistry and Chemical Engineering, YuLin University, Yulin 719000, ChinaSchool of Chemistry and Chemical Engineering, YuLin University, Yulin 719000, ChinaSchool of Chemistry and Chemical Engineering, YuLin University, Yulin 719000, ChinaSchool of Chemistry and Chemical Engineering, YuLin University, Yulin 719000, ChinaSchool of Chemistry and Chemical Engineering, YuLin University, Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin 719000, ChinaPowder adsorbent made by coal gasification slag (CGS) was used to adsorb pollutants from coking wastewater (CW). This study initially focused on the removal efficiency of volatile phenol, NH3–N, and chemical oxygen demand (COD) from CW. The removal rate of volatile phenol increased from 48.90% to 70.50% after acid precipitation of CW by 4.0 mL reagent of sulfuric acid (3.0 M) and optimization of adsorption process by central composite design-response surface methodology with optimized conditions. Volume ratio of liquid and solid adsorbent (V L/S) and pH were the significant factors in the adsorption process. Batch experiment improved the volatile phenol, NH3–N, and COD removal rate to 85.1%, 41.6%, and 77.3%, respectively. Multi-grade batch process in grade 3 made a further promotion of pollutants removal rate as 98.5%, 73.6%, and 80.5%, respectively. Scanning electron microscope-energy dispersive spectrum and Fourier-transform infrared spectrometer were used to confirm the adsorption effect. CGS-based adsorbent for CW treatment has potential advantages due to the features of good adsorption performance and low cost.https://doi.org/10.1515/gps-2022-8130removal ratecoal gasification slagcoking wastewaterresponse surface methodmulti-grade batch process |
| spellingShingle | Su Ting Xianyu Bozhou Gao Wenwen Gao Yanli Gao Pingqiang Lu Cuiying High removal efficiency of volatile phenol from coking wastewater using coal gasification slag via optimized adsorption and multi-grade batch process Green Processing and Synthesis removal rate coal gasification slag coking wastewater response surface method multi-grade batch process |
| title | High removal efficiency of volatile phenol from coking wastewater using coal gasification slag via optimized adsorption and multi-grade batch process |
| title_full | High removal efficiency of volatile phenol from coking wastewater using coal gasification slag via optimized adsorption and multi-grade batch process |
| title_fullStr | High removal efficiency of volatile phenol from coking wastewater using coal gasification slag via optimized adsorption and multi-grade batch process |
| title_full_unstemmed | High removal efficiency of volatile phenol from coking wastewater using coal gasification slag via optimized adsorption and multi-grade batch process |
| title_short | High removal efficiency of volatile phenol from coking wastewater using coal gasification slag via optimized adsorption and multi-grade batch process |
| title_sort | high removal efficiency of volatile phenol from coking wastewater using coal gasification slag via optimized adsorption and multi grade batch process |
| topic | removal rate coal gasification slag coking wastewater response surface method multi-grade batch process |
| url | https://doi.org/10.1515/gps-2022-8130 |
| work_keys_str_mv | AT suting highremovalefficiencyofvolatilephenolfromcokingwastewaterusingcoalgasificationslagviaoptimizedadsorptionandmultigradebatchprocess AT xianyubozhou highremovalefficiencyofvolatilephenolfromcokingwastewaterusingcoalgasificationslagviaoptimizedadsorptionandmultigradebatchprocess AT gaowenwen highremovalefficiencyofvolatilephenolfromcokingwastewaterusingcoalgasificationslagviaoptimizedadsorptionandmultigradebatchprocess AT gaoyanli highremovalefficiencyofvolatilephenolfromcokingwastewaterusingcoalgasificationslagviaoptimizedadsorptionandmultigradebatchprocess AT gaopingqiang highremovalefficiencyofvolatilephenolfromcokingwastewaterusingcoalgasificationslagviaoptimizedadsorptionandmultigradebatchprocess AT lucuiying highremovalefficiencyofvolatilephenolfromcokingwastewaterusingcoalgasificationslagviaoptimizedadsorptionandmultigradebatchprocess |