Application of encapsulated algae into MBR for high-ammonia nitrogen wastewater treatment and biofouling control

Qin, Lei; Gao, Mingzhen; Zhang, Mengyuan; Li, Feng; Liu, Qiuhua; Zhang, Guoliang

doi:10.1016/j.watres.2020.116430

Cited by 41 publications

(11 citation statements)

References 44 publications

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“…In the previous research, the use of algae macrocapsule for MBR, where algae would be place on fiber macrosphere coated with polymer were proven to be efficient in separating the wastewater with the high level of ammonia nitrogen, with a level of efficiency of 97.38% as well as the level of Chemical Oxygen Demand (COD) of 62.23, such result proved that MBR could save energy in managing non-degradable liquid waste management (33). The application of dynamic membrane with hollow fiber was reported as ultra-filtration and low-cost membrane, as well as having the ability to separate high level COD (14).…”

Section: Discussionmentioning

confidence: 94%

Effectiveness of Wastewater Treatment Installation and Liquid Waste Quality in Dr. Soetomo General Hospital, Surabaya

Dewi

Azizah

Husnina

et al. 2022

JKL

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Introduction: Hospitals are institutions that produce liquid waste that may pollute the environment and have a dangerous impact on health. Hospital waste has the potential to contain hazardous chemicals, pharmaceutical waste, radioactivity and microbiological pathogens in liquid waste that can pollute the environment and disrupt the balance of the ecosystem. This study aims to determine the effectiveness of the Wastewater Treatment Plant (WWTP) and the quality of the liquid waste at the Dr. Soetomo General Hospital. Methods: This research was a quantitative descriptive study using secondary data from laboratory analysis of wastewater inlet and outlet of The Central Wastewater Treatment Plant (WWTP) of Dr. Soetomo General Hospital for the January-December 2020 period. Effectiveness was obtained by calculating the difference between the inlet and outlet values of each parameter divided by the inlet value multiplied by 100%. Results and Discussion: WWTP in Dr. Soetomo General Hospital Surabaya used a central WWTP which had 3 (three) units, namely WWTP Sequence Batch Reactor (SBR), WWTP Membrane Biostrain Reactor (MBR) and WWTP Aerobic Biofilter which aims to improve the quality of liquid waste. Based on the results of the research analysis, it has been found that hospital wastewater treatment using a central WWTP system is effective for reducing the levels of parameters, namely Total Suspended Solid (TSS) by 60.55%, Biological Oxygen Demand (BOD) by 72.52%, Chemical Oxygen Demand (COD) by 54.02%, Ammoniacal Nitrogen (NH3N) by 90.91%, Phospate (PO4) by 71.43%, bacteria group E. Coli by 99.93%. The temperature and Potential of Hydrogen (pH) parameters recorded at the outlet are in accordance with the established quality standards. Conclusion: The three WWTP units used in Dr. Soetomo General Hospital are able to treat liquid waste effectively. Liquid waste at each outlet parameter is in accordance with East Java Governor Regulation No. 72 of 2013 concerning quality standards for health facilities waste water, so that the effects of contamination on the environment can be minimized.

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Section: Discussionmentioning

confidence: 94%

Effectiveness of Wastewater Treatment Installation and Liquid Waste Quality in Dr. Soetomo General Hospital, Surabaya

Dewi

Azizah

Husnina

et al. 2022

JKL

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“…Compared to conventional organic carriers, the rigid inorganic fiber microsphere in the centre offers specific advantages such as increased mechanical strength and corrosion resistance. More crucially, this macrosphere enclosed with cells outperforms previously reported free/suspended cells [8]. The previous research uses traditional encapsulation, which is single encapsulated using polymer sodium alginate.…”

Section: Introductionmentioning

confidence: 85%

“…The previous research uses traditional encapsulation, which is single encapsulated using polymer sodium alginate. The new method was proposed because traditional encapsulation has disadvantages such as limited mass transfer, mass cell leakage, and resistance to external shock [8].…”

Section: Introductionmentioning

confidence: 99%

Organic loads reduction efficiency using natural fiber reinforced polymer encapsulated microalgae macrocapsule for wastewater treatment

Dollah

Roslan

Alias

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Organic load such as Chemical Oxygen Demand (COD) increases in the water because of the increase in human growth and industrialisation. The initial goal of the study, to characterise the natural fibre reinforced polymer encapsulated microalgae macrocapsule using Scanning electron microscope (SEM). Second, analyse organic load reduction utilising natural fiber reinforced polymer encapsulated microalgae macrocapsule. The experiment was conducted with five Schott bottles with a 1.7 liter working volume as a photobioreactors. The system was operated with three tubes fabricated with different functions. The first tube was connected to the adjustable air pump oxygen aerator to supply oxygen into the photobioreactor system. The photobioreactor’s second tube is designed to flow out gasses. The last tube is the sampling tube function to withdraw the samples for the efficacy of treatment performance. The photobioreactor will continuously be illuminated with cool-white fluorescent light (Philip TL-D 36W/865, light intensity of 60–70 μmol m-2 s-1). This study employs COD to test microalgae’s organic load reduction. From day 1 to 5, COD value shows a pattern of reduction from 352 mg/L for day 1 and 223 mg/L for day 5, respectively. The analysis reveals that the p-OPEFB (Polymeric Oil Palm Empty Fruit Bunch) macrocapsule has a surface structure with a rough surface before and after treatment. Optical density measures microalgae growth. BBM’s (Bold Basal Medium) increasing absorbance value allows microalgae to develop optimally. Natural fibre reinforced polymer encapsulated microalgae macrocapsule shows potential for wastewater treatment.

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“…At present, denitrifying bacteria was used to achieve the purpose of NH 3 ‐N removal in most sewage treatment plants. However, most of the microorganisms obtained by common cultivation methods were not really suitable for actual wastewater conditions, because they only showed the denitrification effects under specific laboratory conditions (Qin et al, 2020), while the effect will be greatly weakened when they are applied to the actual wastewater environment. It is not enough for the MBR to have good denitrification performance under laboratory conditions (He et al, 2018; Yao & Peng, 2017), and practical engineering of the microbial community is also very important.…”

Section: Discussionmentioning

confidence: 99%

Treatment of municipal wastewater by employing membrane bioreactors combined with efficient nitration microbial communities isolated by Isolation Chip with Plate Streaking technology

Zhang

Fang

et al. 2021

Water Environment Research

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In this research, we developed a method so‐called Isolation Chip with Plate Streaking (ICPS) to selectively enrich nitrifying microbial consortium for treating municipal wastewater. In batch experiment, these bacterial communities were able to remove NH3‐N in 72 h with an efficiency of 96%. Firmicutes, Bacteroidetes, and Proteobacteria species are dominant bacteria in these communities. When the bacterial communities were used in the membrane bioreactor under typical condition, the removal efficiency was 81.0%. In contrast, under the actual wastewater condition, the efficiency could reach 91.2%. All above results showed clearly that the consortium selected by our ICPS method could achieve high‐efficient NH3‐N removal, thus offering a reliable technique for screening functional microorganisms in the field of water treatment. Practitioner points ICPS technology was designed and used for screening specialized NH3‐N‐removing isolates. The screening process benefited the growth of the dominant nitrifying bacteria Firmicutes and Bacteroidetes. When the functional bacteria applied into the MBR, the NH3‐N removal efficiency was 91.2% under actual wastewater conditions.

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Application of encapsulated algae into MBR for high-ammonia nitrogen wastewater treatment and biofouling control

Cited by 41 publications

References 44 publications

Effectiveness of Wastewater Treatment Installation and Liquid Waste Quality in Dr. Soetomo General Hospital, Surabaya

Effectiveness of Wastewater Treatment Installation and Liquid Waste Quality in Dr. Soetomo General Hospital, Surabaya

Organic loads reduction efficiency using natural fiber reinforced polymer encapsulated microalgae macrocapsule for wastewater treatment

Treatment of municipal wastewater by employing membrane bioreactors combined with efficient nitration microbial communities isolated by Isolation Chip with Plate Streaking technology

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