Process Design and Physicochemical Characterization of Extended Aeration Activated Sludge Treatment Plant: A Case Study

Sofwan, Nurzawani Md; Idris, Juferi; Azir, Ku Mohammad Asyraf Ku; Hadi, Nurulhudaya Abdul; Ali, S. N.; Hassan, Nurul Athirah; Wakimin, Nur Diana; Francis, Lydia Dundun; Abdullah, Muhammad Firdaus

doi:10.18488/journal.2.2020.103.121.130

Cited by 4 publications

(3 citation statements)

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“…This water treatment plant is located in the residential college in UiTM Sarawak Branch, Samarahan Campus [29] . It mainly employs the activate sludge process for its water recycle, which is as shown in Figure 8.…”

Section: Case 4: Extended Aeration Activated Sludge Treatment Plant I...mentioning

confidence: 99%

Comparative Study of Conventional and Biological Water Treatment

2023

AJEE

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humans are either locked up in the ice and permanent snow in mountains or stored underground in the form of groundwater, including shallow and deep groundwater basins up to 2,000 meters deep, soil moisture, swamp water, and permafrost. Lastly, only about 0.3% of the world's freshwater resource are freshwater lakes and rivers that are accessible and safe to drink for human [1] .Given these limited amounts of usable freshwater, approximately 2 billion individuals globally lack access to clean drinking water, as highlighted in the SDG Report of 2022 [2] . Additionally, nearly 50% of the global population faces significant water scarcity during certain periods annually [3] . This issue can worsen due to the effects of both climate change and population expansion.Also, because of human-induced contaminations and destructions, drinkable water is facing more damages and negatively affecting both human and animal health. According to a recent study conducted by Orb Media, the environmental scientists present a worldwide investigation of 159 tap water samples from six diverse regions spanning five continents. Among those samples studied, an overwhelming 83% were discovered to contain plastic particles, with the majority of the their lengths ranging from 0.1 to 5 mm, so tiny to be noticed when drinking [4] . These plastics does not only impact humans, but also animal species. It is estimated that 90% of seabirds eat plastics, and plastics can rupture organs of animals, such as fish and turtles, leading to poisoning and starvation [5] .Water is highly a vital source of survival, both for human beings and for living organisms. When water pollution increases, it means that these creatures have less water to consume, not meeting their water demands, and they are pushed to the edge of life and death, and may even start competing for water. As human, and as a part of these living things, it is important to find ways to mitigate freshwater scarcity.

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Section: Case 4: Extended Aeration Activated Sludge Treatment Plant I...mentioning

confidence: 99%

Comparative Study of Conventional and Biological Water Treatment

2023

AJEE

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“…The conventional activated sludge system has been historically used for industrial wastewater treatment [6] since it has the advantages of long hydraulic retention time (HRT), lower capital cost, is typically more ecologically friendly, and has fewer operational requirements than other physical processes. The AS system is made up of the aeration tank, the settling tank, and the sludge recirculation [7]. It is the most widely used biological treatment process [8].…”

Section: Introductionmentioning

confidence: 99%

Toxic Effects of Xenobiotic Compounds on the Microbial Community of Activated Sludge

et al. 2022

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The presence of xenobiotic compounds in biological wastewater treatment processes with activated sludge may reduce microbial communities, disrupt microbial diversity, and diminish system performance. Shock loads and unusual operating events in these biological systems have negative impacts on their efficiency and reliability for pollutant degradation, thereby posing high risk to microorganisms and water quality of receiving treated water bodies. The severity and characteristics of the occurring damage are determined by the toxic contaminant's degree, nature and mode of application. This review highlights the effects of metabolic uncouplers, heavy metals, carbon nanotubes, pharmaceuticals and personal care products, nanoparticles, and phenolic compounds stress on microbial biomass in activated sludge systems. The synergistic, antagonistic, and shock load toxic effects of hybrid substances exposure in an activated sludge sequential batch reactor (SBR) system on organic and nutrient removal, system efficiency, and toxicants biodegradation are discussed. The findings can be used to provide a theoretical foundation and professional assistance for optimizing the shock impacts of these toxic substances on biological wastewater treatment systems, which will help to reduce their negative effects on treatment system efficiency.

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“…Sewage treatment plant is designed to treat sewage wastewater so that the physicochemical properties of the treated sewage wastewater meet the water quality standards set by the legislative board before it can be discharged to the environment [2]. During the treatment process, the sewage wastewater system produces a solid residue known as sewage sludge; a complex solid by-product which accounts for half of the capital cost in establishing the sewage wastewater treatment plant [3].…”

Section: Introductionmentioning

confidence: 99%

Evaluation and Performance of Activated Sludge Hi-Kleen Treatment Plant (ASHTP): A Case Study

Wakimin

Idris

Francis

et al. 2021

5003

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Pollutants from sewage wastewater are major concerns due to their environmental effects. Thus, an effective sewage wastewater treatment plant is important to ensure discharged effluent is well treated before it can be released to rivers or water streams. This study aims to evaluate the performance of the Activated Sludge Hi-Kleen Treatment Plant (ASHTP) located at H Block (ASHTP at H Block) and L Block (ASHTP at L Block) in UiTM Sarawak Branch, Samarahan Campus, Sarawak, Malaysia. The evaluation was based on physicochemical and removal efficiency namely pH, temperature, turbidity, chemical oxygen demand (COD), and total suspended solids (TSS) from raw influent and treated effluent. The findings indicated that the overall performance of both ASHTP at H Block and L Block were satisfactory where treated effluent meets the standard discharge limits of Environmental Quality (Sewage) Regulations 2009 (Standard B). For ASHTP at H Block, the removal efficiencies of turbidity, COD, and TSS were found to be 86.00, 13.76, and 88.02% respectively, in which the pH, temperature, turbidity, COD, and TSS of the treated effluent were 7.30, 28.10°C, 10.40 NTU, 14.10 mg/L and 8.90 mg/L respectively. Meanwhile, for ASHTP at L Block, the removal efficiencies of turbidity, COD, and TSS were found to be 43.20, 41.90, and 51.61% respectively, in which the pH, temperature, turbidity, COD, and TSS in the treated effluent were 7.30, 27.90°C, 21.10 NTU, 58.10 mg/L and 18.00 mg/L respectively. Proper maintenance of sewage treatment plant is important to ensure its effectiveness as well as to prolong its lifespan.

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Process Design and Physicochemical Characterization of Extended Aeration Activated Sludge Treatment Plant: A Case Study

Cited by 4 publications

References 0 publications

Comparative Study of Conventional and Biological Water Treatment

Comparative Study of Conventional and Biological Water Treatment

Toxic Effects of Xenobiotic Compounds on the Microbial Community of Activated Sludge

Evaluation and Performance of Activated Sludge Hi-Kleen Treatment Plant (ASHTP): A Case Study

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