Removal of Adsorbable Organic Halides (AOX) from Recycled Pulp and Paper (P&amp;P) Mill Effluent Using Granular Activated Carbon–Sequencing Batch Biofilm Reactor (GAC-SBBR)

Mohamad, Abu Bakar; Rahman, Raha Abdul; Kadhum, Abdul Amir Hassan; Abdullah, Siti Rozaimah Sheikh; Sudin, Zakiah Wan; Shaari, Safura

doi:10.5539/mas.v2n5p37

Cited by 7 publications

(3 citation statements)

References 13 publications

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“…According to Rajasimman and Karthikeyan (2007), at shorter HRTs, there is insufficient time for the M a n u s c r i p t 25 biomass to degrade the substrate. This condition may lead to a lower removal percentage (Mohamad et al 2008). However, it still depends on the suitability of the overall process, bacteria, and type of wastewater.…”

Section: Biological Treatmentmentioning

confidence: 96%

Production of biodiesel and its wastewater treatment technologies: A review

Daud

Abdullah

Hasan

et al. 2015

Process Safety and Environmental Protection

155

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Section: Biological Treatmentmentioning

confidence: 96%

Production of biodiesel and its wastewater treatment technologies: A review

Daud

Abdullah

Hasan

et al. 2015

Process Safety and Environmental Protection

155

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“…Recently, the aerobic process has been successfully applied in the treatment of toxic organic compounds from wastewater. Biodegradation of the recalcitrant compounds from wastewater has often been studied in aerobic reactors that utilize activated carbon (AC) to adsorb the pollutants and also to act as a carrier for bacterial growth [14][15][16][17]. Owing to the potential to degrade some recalcitrant compounds, the aerobic treatment process with a combination of biofilm and granular activated carbon (GAC) adsorption is an alternative that can be considered.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of a granular activated carbon-sequencing batch biofilm reactor pilot plant system used in treating real wastewater from recycled paper industry

Muhamad

Abdullah

Mohamad

et al. 2012

Environmental Technology

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A pilot scale granular activated carbon-sequencing batch biofilm reactor with a capacity of 2.2 m3 was operated for over three months to evaluate its performance treating real recycled paper industry wastewater under different operational conditions. In this study, dissolved air floatation (DAF) and clarifier effluents were used as influent sources of the pilot plant. During the course of the study, the reactor was able to biodegrade the contaminants in the incoming recycled paper mill wastewater in terms of chemical oxygen demand (COD), adsorbable organic halides (AOX; specifically 2,4-dichlorophenol (2,4-DCP)) and ammoniacal nitrogen (NH3-N) removal efficiencies at varying hydraulic retention times (HRTs) of 1-3 days, aeration rates (ARs) of 2.1-3.4 m3/min and influent feed concentration of 40-950 mg COD/l. Percentages of COD, 2,4-DCP and NH3-N removals increased with increasing HRT, resulting in more than 90% COD, 2,4-DCP and NH3-N removals at HRT values above two days. Degradation of COD, 2,4-DCP and NH3-N were seriously affected by variation of ARs, which resulted in significant decrease of COD, 2,4-DCP and NH3-N removals by decreasing ARs from 3.4 m3/min to 2.1 m3/min, varying in the ranges of 24-80%, 6-96% and 5-42%, respectively. In comparison to the clarifier effluent, the treatment performance of DAF effluent, containing high COD concentration, resulted in a higher COD removal of 82%. The use of diluted DAF effluent did not improve significantly the COD removal. Higher NH3-N removal efficiency of almost 100% was observed during operation after maintenance shutdown compared to normal operation, even at the same HRT of one day due to the higher dissolved oxygen concentrations (1-7 mg/l), while no significant difference in COD removal efficiency was observed.

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“…Table 7 compares the HR-NABR performance with other treatment systems treating RPMW in Malaysia (Mohamad et al 2008;Muhamad et al 2013;Muhamad et al 2015;Dahlan et al 2020). Owing to insufficient data for CH 4 production rate and lignin removal, the treatment system's performance was compared in terms of COD removal only.…”

Section: Performance Optimizationmentioning

confidence: 99%

Modeling and optimization of process parametric interaction during high-rate anaerobic digestion of recycled paper mill wastewater using the response surface methodology

Zwain

Barghash

Vakili

et al. 2022

Journal of Water Reuse and Desalination

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This study carried out the anaerobic digestion of recycled paper mill wastewater (RPMW) in a high-rate novel anaerobic baffled reactor. The parametric interaction between influent chemical oxygen demand (CODin) and hydraulic retention time (HRT) was modeled, and process responses were optimized by the response surface methodology (RSM) using a three-level factorial design. The results showed that the optimal condition was determined at CODin of 4,000 mg/L and HRT of 2 days and predicted values for COD removal, biological oxygen demand (BOD) removal, lignin removal, CH4 content, and CH4 production were found to be 94%, 98%, 68%, 85%, and 20.8 L CH4/d, respectively. According to the statistical analysis of the RSM, all models were significant with very low probability values (from 0.0045 to <0.0001). The parametric interaction showed that increasing the CODin positively influenced the COD, BOD, and lignin removal efficiencies, effluent alkalinity, and methane content and production but was unfavorable for pH and effluent volatile fatty acid (VFA). Shorting the HRT negatively affected the COD, BOD, and lignin removal efficiencies, pH level, alkalinity, and methane content and production, and increased the VFA effluent concentration. The optimal conditions were established at 4,000 mg/L COD and HRT of 2 days, corresponding to the predicted COD, BOD, and lignin removal efficiencies of 91, 98, and 71%, respectively, whereas 28 mg/L of VFA and 0.125 L of CH4/g CODremoved were generated.

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Removal of Adsorbable Organic Halides (AOX) from Recycled Pulp and Paper (P&P) Mill Effluent Using Granular Activated Carbon–Sequencing Batch Biofilm Reactor (GAC-SBBR)

Cited by 7 publications

References 13 publications

Production of biodiesel and its wastewater treatment technologies: A review

Production of biodiesel and its wastewater treatment technologies: A review

Performance evaluation of a granular activated carbon-sequencing batch biofilm reactor pilot plant system used in treating real wastewater from recycled paper industry

Modeling and optimization of process parametric interaction during high-rate anaerobic digestion of recycled paper mill wastewater using the response surface methodology

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