Biodegradation of BOD and ammonia-free using bacterial consortium in aerated fixed film bioreactor (AF2B)

Prayitno, Prayitno; Rulianah, Sri; Saroso, Hadi; Meilany, Diah

doi:10.1063/1.4985515

Cited by 5 publications

(6 citation statements)

References 7 publications

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“…An investigation conducted at a bench scale employing microbial consortium also demonstrated significant BOD removal (92%) after 6 h of treatment. Investigation on the impact of HRT on organic matter removal rates yielded that longer degradation time resulted in more biodegradation of BOD 63 …”

Section: Resultsmentioning

confidence: 99%

“…Investigation on the impact of HRT on organic matter removal rates yielded that longer degradation time resulted in more biodegradation of BOD. 63 It is worth mentioning that maximum COD and BOD reduction is obtained by inoculants (MI-1 and MI-2) containing Bacillus subtilis along with other microbial species. Several studies have reported that microbial consortia including B. subtilis can significantly degrade organic loads.…”

Section: Removal Of Organic Load (Cod and Bod)mentioning

confidence: 98%

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Performance appraisal of microbial inoculants treating polluted surface water through bench‐scale investigation

Simon

Joshi

Hazra

2023

J of Chemical Tech & Biotech

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BACKGROUNDThis study investigates the performance of microbial inoculants by exploring pollutant removal efficiency, microbial viability and substrate removal kinetics for treating polluted surface water. The morphological, elemental composition and biochemical characterization of inoculants were analyzed using field emission scanning electron microscopy with energy dispersive X‐ray spectroscopy (FESEM‐EDX) and Fourier transform infrared (FTIR) techniques. The identification of bacterial strains in polluted feed water also was performed using 16S rRNA partial sequencing. Bench‐scale efficacy of selected microbial inoculants (MI) along with control for each study was performed at variable retention times ranging from 6 to 72 h, under optimum operating conditions.RESULTSThe maximum removal (86% and 90%) of the organic load (chemical and biological oxygen demand, COD and BOD) was achieved by inoculants containing Bacillus subtilis along with other microbial species after 72 h of treatment. The microbial inoculant MI‐2 containing Paracoccus pantotrophus and Pseudomonas Putida exhibited the highest TN removal (66%) after 72 h of contact time. Adenosine triphosphate (ATP) analysis revealed that the active biomass ratio is a more precise indicator of healthy biomass instead of the conventionally used parameter MLVSS (mix liquor volatile suspended solids) in a biological treatment system, which apparently provides a significant addition to the existing knowledge base for the operational wastewater treatment plants (WTPs).CONCLUSIONIn this study, microbial inoculants were found to be frugal and viable treatment tools for the remediation of polluted surface water. Exploiting such inoculants also can overcome the inefficiencies of existing sewage treatment plants by serving as potential tools for bio‐augmenting the indigenous microbial fingerprint of aeration tank/secondary treatment systems. © 2023 Society of Chemical Industry (SCI).

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Section: Resultsmentioning

confidence: 99%

Section: Removal Of Organic Load (Cod and Bod)mentioning

confidence: 98%

Performance appraisal of microbial inoculants treating polluted surface water through bench‐scale investigation

Simon

Joshi

Hazra

2023

J of Chemical Tech & Biotech

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“…This condition is due to the honeycomb-shaped biofilter has a large surface area so that the contact and decomposition of pollutant by microbes into non-pollutant compounds is getting bigger [28]. The results of previous studies stated that the AF2B reactor has an effective ability to reduce the concentration of pollutants in hospital wastewater, i. e.: BOD (92 %), NH3-N (72 %), COD (88 %), and Phenol (88 %) [10,11]. The research on acrylonitrile wastewater shows that optimum conditions were obtained at the lowest flow rate of 1.25 L•hr -1 for all the parameters and the efficiency decreased with the average values of 83.32 % for BOD, 73.31 % for COD and 71.24 % for the phosphate [1].…”

Section: Discussion Of the Research Of Aerobic Biofilter-granular Ads...mentioning

confidence: 99%

“…The aerated fixed film biofilter (AF2B) reactor that operates in batches can reduce pollutants in hospital wastewater such as BOD, ammonia by 92 % and 76 %, respectively [10]. Meanwhile, in the same experiment using an AF2B reactor and a bacterial consortium that operates in batch, it can reduce COD and phenol pollutants by 86 % and 88 %, respectively [11]. However, for the AF2B reactor which treats seaweed industry wastewater and operates continuously, no study has yet been carried out.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…The seaweed processing industry is one of the food industries, where in the seaweed processing industry into ATCC (alkaline treated cotton chips) products, which wastewater are generated from the washing, soaking, and cooking processes. The average volume of wastewater generated from this industry is large (300-500 m 3 •d -1 ) with characteristics: pH (11)(12)(13), BOD (300-500 mg•L -1 ), COD (700-1,300 mg•L -1 ), TSS (150-300 mg•L -1 ), Ammonia, NH 3 N (10-20 mg•L -1 ), and Chlorine (5-15 mg•L -1 ). For this reason, the operational costs of the wastewater treatment plant (WWTP) are high operating costs.…”

Section: Introductionmentioning

confidence: 99%

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An analysis of performance of combined aerobic biofilter – granular adsorption – nano adsorption process in seaweed industrial wastewater treatment

Prayitno

Hendrawati

Siradjuddin

et al. 2022

EEJET

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Wastewater of Seaweed industry contains macronutrients, alkalis, moderately biodegradable organics, and has a large volume, which it is treated using a biological process (activated sludge) followed by an adsorption process. The results of this treatment are quite effective in reducing the concentration of pollutants to reach the quality standard. However, the reuse of seaweed industrial wastewater into drinking water or process water is still not effective when using a combination of these processes. On the other hand, biological treatment such as aerobic fixed film biofilter (AF2B) and nano adsorption has high effectiveness in reducing biodegradable organic matter (BOD, COD), bacteria, and other metals. Therefore, the reuse of seaweed industrial wastewater into drinking water can be done by combining the two types of processes. The aim of the research was to study the ability of the AF2B – Granular adsorption – nano adsorption process in reducing pollutants in seaweed industrial wastewater. The experiment is conducted by flowing wastewater continuously into a series of process an AF2B reactor, GAC, and CNTs column. By making changes to the factors that affect the performance of each process, and then measuring the pollutant concentration at the input and output of each process, so the performance of each process can be known. Data is analysed to obtain optimum condition in each process that used for design process in wastewater treatment plant. The results showed that of the AF2B/GAC process was able to reduce contaminants such as TSS, BOD, COD, NH3‑N and Chlorine by 98 %, 99 %, 97.3 %, 97.8 %, and 100 % respectively. Furthermore, in the CNTs process, all pollutants not detected until they meet drinking water quality standards

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The combination of Aerobic Biofilter Granular Adsorption-Microfiltration for Seaweed Industry Wastewater Treatment

Prayitno,

Rulianah,

Adidharma

2024

E3S Web Conf.

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Wastewater from the seaweed processing industry contains macronutrients, alkalis, and moderately biodegradable organics, and has a large volume. Several treatment combinations such as coagulationflocculation-activated sludge-adsorption have been carried out but are still ineffective, especially if the treated water is reused for process water. This research aimed to analyze the effectiveness of the combination of the aerobic biofilter granular microfiltration process in reducing pollutants. The aerobic biofilter process uses an Aerated Biofilter Fixed Film Biofilter (AF2B), granular adsorption uses Granular Activated Carbon (GAC), while microfiltration uses membrane microfiltration (MF). The parameters tested include Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Turbidity, Total Suspended Solid (TSS), Chlorine, Total Hardness, Fe+2, and Mn+2. Optimum conditions to obtain the best results were determined in each process. The results showed that the combination of the AF2B/GAC process reduced contaminants such as TSS, BOD, COD, and Chlorine by 97%, 99%, 98%, and 99.8% respectively. Furthermore, in the MF process, all pollutants have been removed to meet process water quality standards.

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Biodegradation of BOD and ammonia-free using bacterial consortium in aerated fixed film bioreactor (AF2B)

Cited by 5 publications

References 7 publications

Performance appraisal of microbial inoculants treating polluted surface water through bench‐scale investigation

Performance appraisal of microbial inoculants treating polluted surface water through bench‐scale investigation

An analysis of performance of combined aerobic biofilter – granular adsorption – nano adsorption process in seaweed industrial wastewater treatment

The combination of Aerobic Biofilter Granular Adsorption-Microfiltration for Seaweed Industry Wastewater Treatment

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