Treatment of saline municipal wastewater using hybrid growth system

Salmanikhas, N.; Tizghadam, Mostafa; Mehrabadi, Abdollah Rashidi

doi:10.1186/s13036-016-0030-7

Cited by 22 publications

(12 citation statements)

References 28 publications

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“…In the cases with existing mini-sewage treatment plants that operate on the active sludge technology, it is possible to increase their operation stability, which influences their reliability, by introducing flexible or stable microorganisms immobilized on the artificial carriers [6,7]. Such hybrid systems are the combination of suspended and immobilized biomass, and are more resistant to the quantitative and qualitative changes of sewage than the classic active sludge; they also lack some of the biological beds' defects [8,9]. The introduction of plastic blocks into the classic bioreactor with the active sludge may increase the effectiveness of organic matter removal from the sewage without the need to expand the treatment plant.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Hybrid Sewage Treatment Plant’s Exploitation on Its Operation Effectiveness in Rural Areas

2018

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The article evaluates the effectiveness of the removal of organic pollutants—nitrogen and phosphorus—from household sewage in a hybrid bioreactor with a submerged fixed bed. The experiment was carried out in two exploitation variants that were both conducted in a laboratory model of the hybrid bioreactor: (I) cycles of 120 min of aeration and 60 min of no aeration with a constant sewage dosage, and (II) cycles 60 min of aeration and 60 min of no aeration, with a periodic sewage dosage in the no-aeration phase. The experiment was carried out on real sewage primarily treated in a septic tank. The amount of pollution removal was calculated and compared with the mandatory standards according to Polish law. Moreover, the susceptibility of the sewage to the biological treatment, nitrification, and denitrification activity was determined. The research shows a higher effectiveness for the 60/60 model in comparison to the 120/60 model. High operation efficiency was observed regarding the removal of organic pollution and nitrate nitrogen. The tested structure showed very low nitrification activity combined with intense denitrification. These processes were observed in the 60/60 variant. The structure was often overloaded with the nitrate nitrogen, which was considered to be the nitrification process inhibitor. It was suggested that phosphorus was also removed by the denitrifying bacteria.

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Section: Introductionmentioning

confidence: 99%

Influence of the Hybrid Sewage Treatment Plant’s Exploitation on Its Operation Effectiveness in Rural Areas

2018

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“…Penelitian tentang teknologi Fluidized Bed pada reaktor OD dalam pengolahan air limbah domestik dengan kadar garam yang tinggi (0,5-1,5 %), dan hasilnya dibandingkan dengan kinerja sistem OD konvensional. Hasilnya menunjukkan penurunan COD yang lebih tinggi dalam rentang (48,5%-80%) dengan menggunakan teknologi Fluidized Bed dibandingkan dengan sistem OD kovensional dengan penurunan COD (26,5% -62%) [11].…”

Section: Pendahuluanunclassified

Reduksi Energi Pengolahan Air Limbah di Kawasan Industri Dengan Implementasi Teknologi Food Chain Reactor (Studi Kasus : Kawasan Industri Jababeka Bekasi)

Wikaningrum

Hakiki

2020

JSE

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Biological-aerobic process is a technology that is often chosen to treat wastewater in industrial areas, especially industries related to food industries. Compared to chemical treatment and advanced treatment, biological treatment is relatively more efficient in the costs required. However, in conventional biological treatment the amount of energy consumption in the process is a major cost component that it becomes one of the challenges in implementing this technology. This paper contains a review of the implementation of the Food Chain Reactor (FCR) technology in treating industrial area wastewater, focusing on an overview of energy consumption compared to conventional biological-aerobic treatment of oxidation ditch (OD). FCR is a wastewater treatment plant (IPAL) that combines Integrated Fixed Film Activated Sludge (IFAS) technology and technology that resembles Constructed Wetland, thus enabling the simultaneous physical, biological and biochemical treatment processes within the reactor. In this case study, the implementation succeeded in showing a reduction in energy consumption by 46.4% while maintaining an efficiency decrease in BOD by 83% and efficiency in decreasing ammonia by 82%. As with the OD process, in this FCR study showed that the denitrification process has not been successful.

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“…The pharmaceutical biomedical wastewater was initially characterized for its physiochemical parameters as per APHA standard methods [19] and it was then treated with IFBBR [36,37]. Table 5 shows the physiochemical characteristics of the treated pharmaceutical biomedical wastewater.…”

Section: Physiochemical Analysis Of Treated Pharmaceutical Based Biommentioning

confidence: 99%

Investigation of flow dynamic characteristics of inverse fluidized bed biofilm reactor for degrading pharmaceutical based biomedical wastewater

Begum¹,

Sikkandar

Prakash³

et al. 2020

Environmental Engineering Research

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The paper investigates the flow dynamic behaviour of inverse fluidized bed biofilm reactor (IFBBR) for the treatment of pharmaceutical based biomedical wastewater. The residence time distribution (RTD) study has been employed as a tool to investigate the flow dynamic behaviour of wastewater within the reactor. The biofilm reactor is operated using Pseudomonas fluorescens for various ratios of settled bed volume to reactor working volume (V b /V r) with different superficial air velocities and examined their impact on flow dynamics. The outcomes of this study demonstrate the presence of dead volume and short circuiting in the reactor were reduced for the optimized (V b /V r) ratio of 0.20 and optimum superficial air velocity (U g) m of 0.220 m/s. The potential of IFBBR was experimentally validated by analysing the chemical oxygen demand (COD) removal efficiency, total dissolved solids (TDS) and total suspended solids (TSS) emanating from the wastewater. Findings of this study reveals that maximum COD reduction of about 92% was achieved when the reactor was operated with (V b /V r) m of 0.20 with superficial air velocity, U gm of 0.220 m/s showing the optimal operating parameters for IFBBR which has good mixing and less back mixing condition inside the reactor.

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Treatment of saline municipal wastewater using hybrid growth system

Cited by 22 publications

References 28 publications

Influence of the Hybrid Sewage Treatment Plant’s Exploitation on Its Operation Effectiveness in Rural Areas

Influence of the Hybrid Sewage Treatment Plant’s Exploitation on Its Operation Effectiveness in Rural Areas

Reduksi Energi Pengolahan Air Limbah di Kawasan Industri Dengan Implementasi Teknologi Food Chain Reactor (Studi Kasus : Kawasan Industri Jababeka Bekasi)

Investigation of flow dynamic characteristics of inverse fluidized bed biofilm reactor for degrading pharmaceutical based biomedical wastewater

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