|
| Feedstock | Pyrolysis temp (°C) | Detected organic pollutants | Effect | Reference |
|
| Hardwood | 450°C–500°C | 10 PAH | Enhanced seedling growth.
Greatest capacity to neutralize allelochemicals present in corn residues. | [153] |
| Corn | 500°C | 5 PAH | Enhanced seedling growth. |
| 732°C | 15 PAH |
| Switch grass | 850°C | 17 PAH | Suppressed seedling growth. |
| 845°C | 19 PAH |
| Coconut, pine nut and walnut shells | 500°C | Carbamazepine and tetracycline | Fe3O4 enhancement exhibited fast and high sorption for carbamazepine and tetracycline.
Ball milling is effective for degradation of adsorbed carbamazepine and tetracycline on the adsorbents. | [154] |
| Pig manure | 350 and 700°C | Carbaryl and atrazine | The pesticides were adsorbed by the biochars.
Hydrolyze faster on elevated pH with biochar 700°C.
Carbaryl and atrazine decomposed by 71.8% and 27.9%. | [51] |
| Pine wood, corn stalks, peanut shells, rice straw, and wheat straw | 200, 350, 500, and 700°C, | p-Nitrophenol, p-aminophenol | PNP degraded through the direct contact with EPFRs.
Biochars degrade PNP in soil and natural water.
EPFR-promoted degradation for 5 biochars and PNP. | [155] |
| Cottonwood | 600°C | Methylene blue and phosphate | Excellent adsorption abilities for the contaminants. | [156] |
| Birchwood and Norway spruce wood | 380°C–430°C | Glyphosate, diuron | Duron adsorption enhanced by biochar in soils.
Glyphosate adsorption decreased in sandy soil.
Ageing of soil-biochar mixtures decreased adsorption of both
herbicides. | [157] |
| Lignin and cellulose | 500°C | p-Nitrophenol | PNP decay was only modestly suppressed (12–30%).
Lignin char more reactive than cellulose char.
The Fe impurity in lignin played no role. | [158] |
| Pig manure, rice and wheat straw | 350 and 700°C | Carbaryl | Enhanced chemical hydrolysis of carbaryl at high temp.
Promoted biodegradation at low temp. high temp reduced biodegradation of carbaryl. | [41] |
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