Enhancing Rubber Industry Wastewater Treatment through an Integrated AnMBR and A/O MBR System: Performance, Membrane Fouling Analysis, and Microbial Community Evolution

Membranes, Journal Year: 2024, Volume and Issue: 14(6), P. 130 - 130

Published: June 5, 2024

This study explores the effectiveness of an integrated anaerobic membrane bioreactor (AnMBR) coupled with anoxic/oxic (A/O MBR) for treatment natural rubber industry wastewater high sulfate, ammonia, and complex organic contents. was conducted at lab-scale over a duration 225 days to thoroughly investigate efficiency sustainability proposed method. With hydraulic retention time 6 total system, COD reductions were 98%, which reduced influent from 22,158 ± 2859 mg/L 118 74 effluent. The system demonstrates average NH3-N, TN, phosphorus (TP) removal efficiencies 72.9 5.7, 72.8 5.6, 71.3 9.9, respectively. Despite whole biological 50.6%, reactor eliminated 44.9% raw WW sulfate. Analyses fouling revealed that more pronounced in membrane, whereas aerobic displayed varied profiles due differential microbial oxidative activities. Key bacterial genera, such as Desulfobacterota stage nitrifiers stage, are identified instrumental processes. profile reveals shift methanogenesis sulfide-driven autotrophic denitrification sulfammox, evidence active pathway anaerobic/anoxic conditions. showcases its potential industrial application, underpinning environmental through improved management.

Language: Английский

New Trends in Composite Coagulants for Water and Wastewater Treatment

Macromol—A Journal of Macromolecular Research, Journal Year: 2024, Volume and Issue: 4(3), P. 509 - 532

Published: July 22, 2024

Coagulation/Flocculation (C/F) process aims to efficiently eliminate turbidity, TSS, COD, BOD, toxic metals, phosphates, and UV254nm from wastewater. Both natural synthetic coagulants, used alone or in conjunction with flocculants, play crucial roles this treatment. This review summarizes recent trends coagulants for wastewater treatment, highlighting a wide array of inorganic organic that have demonstrated significant efficacy based on reviewed studies. Notably, Crab Shell Bio-Coagulant (CS) excels turbidity remov5al, achieving remarkable 98.91% removal rate, while oak leaves protein shows superior performance TSS COD removal. Synthetic like PALS, PSiFAC1.5:10:15, PAPEFAC1.5-10-15 demonstrate outstanding rates, over 96%. POFC-2 coagulant stands out removing domestic wastewater, up 93% 89% COD. Moreover, the utilization FeCl3 as an alongside chitosan flocculant promise reducing polyphenols vegetable oil refineries. PE-2, novel coagulant, demonstrates exceptional eliminating BOD sugar industry Chitosan effectiveness TOC orthophosphates brewery Additionally, CTAB high efficiency various metal ions The hybrid coagulants: PAAP0.1,0.5 PPAZF accomplish approximately 98%.

Language: Английский

Synchronised removal of nitrogen and sulphate from rubber industrial wastewater by coupling of Sulfammox and sulphide-driven autotrophic denitrification in anaerobic membrane bioreactor

Bioresource Technology, Journal Year: 2024, Volume and Issue: 416, P. 131785 - 131785

Published: Nov. 13, 2024

Language: Английский