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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kipkemoi Kirui, W. Lu, Qimin Bah, Hamidou Kizito, Simon Lei, Ming Wu, Shubiao Dong, Renjie |
| Description | Author Affiliation: Kizito S ( Key Laboratory of Clean Utilization Technology for Renewable Energy in Ministry of Agriculture, College of Engineering, China Agricultural University, 100083 Beijing, PR China.); Wu S ( Key Laboratory of Clean Utilization Technology for Renewable Energy in Ministry of Agriculture, College of Engineering, China Agricultural University, 100083 Beijing, PR China. Electronic address: wushubiao@gmail.com.); Kipkemoi Kirui W ( Key Laboratory of Clean Utilization Technology for Renewable Energy in Ministry of Agriculture, College of Engineering, China Agricultural University, 100083 Beijing, PR China.); Lei M ( College of Agronomy and Biotechnology, China Agricultural University, 100083 Beijing, PR China.); Lu Q ( Key Laboratory of Clean Utilization Technology for Renewable Energy in Ministry of Agriculture, College of Engineering, China Agricultural University, 100083 Beijing, PR China.); Bah H ( Key Laboratory of Clean Utilization Technology for Renewable Energy in Ministry of Agriculture, College of Engineering, China Agricultural University, 100083 Beijing, PR China.); Dong R ( Key Laboratory of Clean Utilization Technology for Renewable Energy in Ministry of Agriculture, College of Engineering, China Agricultural University, 100083 Beijing, PR China.) |
| Abstract | Due to its high adsorption capacity, the use of biochar to capture excess nutrients from wastewater has become a central focus in environmental remediation studies. In this study, its potential use in adsorption and removal of ammonium in piggery manure anaerobic digestate slurry was investigated. The adsorbed amount of NH4(+)-N (mg·g(-1)) and removal percentage as a function of adsorbent mass in solution, adsorbent particle size, NH4(+)-N concentration in the effluent, contact time, pH and temperature were quantified in batch equilibrium and kinetics experiments. The maximum NH4(+)-N adsorption from slurry at 1400 mgN·L(-1) was 44.64 ± 0.602 mg·g(-1) and 39.8 ± 0.54 mg·g(-1) for wood and rice husk biochar, respectively. For both biochars, adsorption increased with increase in contact time, temperature, pH and NH4(+)-N concentration but it decreased with increase in biochar particle size. Furthermore, the sorption process was endothermic and followed Langmuir (R(2)=0.995 and 0.998) and Pseudo-second order kinetic models (R(2)=0.998 and 0.999). Based on the removal amounts, we concluded that rice husk and wood biochar have potential to adsorb NH4(+)-N from piggery manure anaerobic digestate slurry, and thus can be used as nutrient filters prior to discharge into water streams. |
| ISSN | 00489697 |
| Volume Number | 505 |
| e-ISSN | 18791026 |
| Journal | Science of The Total Environment |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-02-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Ammonium Compounds Chemistry Charcoal Nitrogen Waste Disposal, Fluid Methods Water Pollutants, Chemical Adsorption Anaerobiosis Animals Manure Swine Wood Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Waste Management and Disposal Pollution Environmental Engineering |
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