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| Pollutant | Process | Type of effluent and operating conditions | Degradation | Additional information | References |
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| Bisphenol A | Aerobic granular sludge | Synthetic municipal wastewater with the following concentrations: COD = 445 mg/L; BPA = 2 mg/L; pH = 7.5–8.0; T = 20°C; t = 16 h | 39% | Mixed community of microorganisms in aerobic granular media was used, BPA degraders were active at the beginning of the reactor cycle, and no BPA degradation by-products were detected | [146] |
| Sequencing batch biofilm reactor | Synthetic wastewater with the following concentrations: BPA = 10 mg/L; 10 mL of activated sludge; 57.5 g/L of waste iron; PH = 8; T = 21°C; t = 100 min | 92% | Acclimatisation of activated sludge with BPA and waste zero-valent iron had a positive effect on BPA removal in a sequential batch biofilm reactor | [144] |
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| Atrazine | Anaerobic moving bed biofilm reactor | Pilot-scale study with synthetic wastewater, ATZ = 0.1 mg/L; COD = 500 mg/L; HRT = 24 h; T = 32°C; PH = 7.5 | ATZ = 60.5% COD = 97.4% | The biofilm moving bed anaerobic reactor showed excellent efficiency in the removal of organic matter and atrazine | [147] |
| Denitrifying bioreactors | Laboratory experiments with synthetic wastewater, [ATZ] = 20 ug/L; (NO3-N) = 1.5 mg/L; T = 21°C; HRT= (4-8-24–72 h) | ATZ = 53% NO3-N = 100% | NO3-N and atrazine removal increased with increasing HRT. At 4 h, the wood chip bioreactor removed 65% of the NO3-N and 25% of the atrazine, but at 72 h, the bioreactor removed all NO3-N and 53% of the atrazine | [148] |
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| Amoxicillin | Anaerobic degradation systems | Laboratory experiments with synthetic wastewater; [AMX] = 2500 ug/L; T = 37°C; PH = 7.2 | AMX is completely eliminated | Amoxicillin was completely eliminated under anaerobic conditions. However, analysis identified amoxicillin penicilloic acid, amoxilloic acid, amoxicillin diketopiperazine, and phenol hydroxypyrazine as by-products | [149] |
| Anaerobic digestion and aerobic-sequencing batch reactor | Lab-scale combined anaerobic and aerobic processes for swine wastewater treatment containing 19 antibiotics; HRT = 3.3 days; total antibiotic concentrations 99.2 to 339.3 μg/L; COD = 5683 mg/L; [AMX] = 60 ng/L | Antibiotics = 92% COD = 95% | Biodegradation of antibiotics was favoured in the SBR, while the degradation of COD was favoured in the anaerobic reactor | [150] |
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| Paracetamol | Activated sludge | Laboratory experiments with synthetic wastewater; activated sludge comes from an aerobic tank in a wastewater treatment plant. [PCM] = 100 mg/L; t = 72 h | 99% | The pseudomonas population could eliminate PCM at levels up to 590 mg/L and could also metabolize the PCM-derived metabolites 4-aminophenol, hydroquinone, and 1, 4-benzoquinone at varying levels | [142] |
| Constructed wetlands (CWs) | Pilot-scale vertical flow constructed wetland with hospital wastewater; [PCM] = 10 mg/L; HRT = 5 d; media bed: sand and gravel | ˃99% | S. validus peroxidase enzymes are planted in the CW to control PCM. The vertical flow CW was effective in removing PCM (˃99%) in hospital wastewater treatment | [145] |
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