A critical review on biochar for enhancing biogas production from anaerobic digestion of food waste and sludge

An integrative review of granular sludge for the biological removal of nutrients and recalcitrant organic matter from wastewater

Dynamic membrane for micro-particle removal in wastewater treatment: Performance and influencing factors

Development of metal–organic framework (MOF) derived carbon materials toward advanced oxidation processes (AOPs) is essential for environment-friendly catalysts. In this work, a confined pyrolysis strategy to prepare N-doped hierarchical carbon (NDHC) catalysts for non-radical advanced oxidation processes is proposed. After simply pyrolyzing phenolic resin (PR) coated zeolite imidazole framework (ZIF) particles, NDHC with favorable structural and compositional properties is obtained. To present the catalytic performance of resultant NDHC, bisphenol A (BPA) is selected as the target contaminant. The results show that 98% of BPA (20 ppm) was removed by NDHC in 5 min, which is superior to many other peroxymonosulfate (PMS) catalysts. Based on electron paramagnetic resonance (EPR) analysis and scavenger experiments, a singlet oxygen-dominated non-radical mechanism is confirmed in the degradation process. In addition, the influencing factors including solution pH, catalyst/PMS dosage, BPA concentration, reaction temperature, and anion/organic matter are also investigated. This confined pyrolysis strategy endows MOF derived carbon materials wide application prospects in environmental remediation.

Confined pyrolysis of metal–organic frameworks to N-doped hierarchical carbon for non-radical dominated advanced oxidation processes

State of the art of aerobic granulation in continuous flow bioreactors.

Aerobic granulation accelerated by biochar for the treatment of refractory wastewater

Facilitated bio-mineralization of N,N-dimethylformamide in anoxic denitrification system: Long-term performance and biological mechanism.

Enhanced anoxic biodegradation of pyridine coupled to nitrification in an inner loop anoxic/oxic-dynamic membrane bioreactor (A/O-DMBR).

Co-metabolic enhancement of 1H-1,2,4-triazole biodegradation through nitrification.

For the treatment of high-strength pyridine containing wastewater, a bioaugmented continuous-flow self-forming dynamic membrane bioreactor (CSFDMBR), which was consisted of a continuous flow airlift reactor (CFAR) and a dynamic membrane bioreactor (DMBR), was developed in this study. The results indicated that through the bioaugmentation by Rhizobium sp. NJUST18, CSFDMBR could be successfully started, which was confirmed by complete removal of pyridine, efficient nitrification, and significant increase of biomass. Pyridine could be effectively degraded in the CSFDMBR even at influent pyridine loading rate as high as 9.0 kg m−3 day−1, probably due to the efficient biomass retention in the CSFDMBR, which could be attributed to the formation of aerobic granules and the key role of dynamic membrane. CSFDMBR presented good polishing performance in treating pyridine wastewater, with effluent total organic carbon (TOC) and turbidity as low as 22.5 ± 6.8 mg L−1 and 3.8 ± 0.5 NTU, respectively. Membrane fouling could be effectively controlled, as indicated by backwash period as long as 60 days. The observed efficient performance highlights the potential for the full-scale application of the bioaugmented CSFDMBR, particularly for highly recalcitrant pollutant removal.

Bioaugmentation of a continuous-flow self-forming dynamic membrane bioreactor for the treatment of wastewater containing high-strength pyridine.

Cheng Hou

Papers

Aerobic granulation accelerated by biochar for the treatment of refractory wastewater

Facilitated bio-mineralization of N,N-dimethylformamide in anoxic denitrification system: Long-term performance and biological mechanism.

Enhanced anoxic biodegradation of pyridine coupled to nitrification in an inner loop anoxic/oxic-dynamic membrane bioreactor (A/O-DMBR).

Co-metabolic enhancement of 1H-1,2,4-triazole biodegradation through nitrification.

Bioaugmentation of a continuous-flow self-forming dynamic membrane bioreactor for the treatment of wastewater containing high-strength pyridine.