Performance of modified one-stage Phoredox reactor with hydraulic up-flow in biological removal of phosphorus from municipal wastewater

Jaafari, Jalil; Javid, Amir Hossein; Barzanouni, H.; Younesi, Azad; Farahani, Noshin Amir Abadi; Mousazadeh, Milad; Soleimani, Parasto

doi:10.5004/dwt.2019.24752

Cited by 41 publications

(10 citation statements)

References 27 publications

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“…The results of the present study were comparable to the findings of Majid and Mahna [ 18 ] in which a total COD removal of 87% was observed at an HRT of 12 h in a lab-scale moving-bed biofilm reactor (MBBR) using Kaldnes K3 media for synthetic wastewater treatment. A similar trend of COD removal using Kaldnes K3 media was also observed by Jaafari, et al [ 19 ] where a total removal of 95.5% was observed in a modified phoredox reactor for municipal wastewater treatment at an HRT of 8 h. Shebl, Hassan, Salama, El-Aziz, and Abd Elwahed [ 4 ] also observed similar trends of COD removal (75%) in their study for treating medium-high-strength wastewater at an HRT of 24 h in ABR. Furthermore, another study on an ABR-AF system by Renuka, et al [ 20 ] reported COD removal of 90% at an HRT of 40 h.…”

Section: Resultssupporting

confidence: 87%

Feasibility Study of Anaerobic Baffled Reactor Coupled with Anaerobic Filter Followed by Membrane Filtration for Wastewater Treatment

Khan

Miran

et al. 2023

Membranes

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The performance of a Decentralized Wastewater Treatment System (DWTS) comprising an Anaerobic Baffled Reactor (ABR) and an Anaerobic Filter (AF) and Membrane Filtration (MF) module was studied for domestic wastewater treatment. The efficiency of the system was evaluated by running ABR at four different HRTs (14, 12, 10, and 8 h) resulting in COD removal efficiencies of 74, 72, 69, and 65%, respectively. The performance of AF using four different filtration media, i.e., PVC pipe (25 mm), PVC pipe (20 mm), PVC pipe (15 mm), and Kaldnes K3, was determined at optimized HRT (12 h). Among all the filtration media tested, the highest performance efficiency of the system was found with the PVC pipe (20 mm), which showed COD, TP, and TKN removal of 79, 32, and 63%, respectively. The efficacy of the system was proven via significant COD and turbidity removal of 94.6 and 87.2%, respectively, by the combined system.

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Section: Resultssupporting

confidence: 87%

Feasibility Study of Anaerobic Baffled Reactor Coupled with Anaerobic Filter Followed by Membrane Filtration for Wastewater Treatment

Khan

Miran

et al. 2023

Membranes

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“…Diante disto, em termos de atenuação da eutrofização é mais efetiva a remoção do P no ES. Este processo pode ser realizado por meios químicos ou biológicos e deve garantir a redução do P em níveis mais baixos possíveis (Henrique et al 2010;Jaafari et al 2019).…”

Section: Suinocultura E O Fósforo: Implicações Ambientaisunclassified

“…A remoção química baseia-se no princípio de precipitação do P na forma de um sal, geralmente com ferro, alumínio ou cálcio e envolve um processo de coagulação-floculação-decantação. Este processo é dispendioso e chega a aumentar a concentração de sólidos de 20 a 40% dependendo do tipo de lodo e da forma de filtração (Pedroza et al 2010;Bali e Gueddari, 2019;Jaafari et al 2019). Além disto, a disponibilidade destes precipitados de P para a agricultura é discutível, uma vez que o P não se encontra em sua forma solúvel (Yeoman et al 1988).…”

Section: Suinocultura E O Fósforo: Implicações Ambientaisunclassified

Reciclagem biológica do fósforo a partir do efluente suíno originário da biodigestão anaeróbia: uma revisão

2020

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O efluente suíno (ES) apresenta elevado potencial poluidor, pois, mesmo após o processo de biodigestão anaeróbia, contém ainda concentrações variáveis de nutrientes, especialmente de fósforo (P). Este trabalho teve como objetivo investigar por meio de uma revisão de literatura a reciclagem biológica do P como alternativa para o tratamento de ES originário da biodigestão anaeróbia. Observou-se que o processo denominado de remoção biológica reforçada de fosfatos consiste no método mais utilizado na remoção do P presente em efluentes. Ele consiste na ciclagem da biomassa através de ambientes aeróbios e anaeróbios e envolve a incorporação do P no interior da célula das bactérias e, a subsequentemente remoção da massa enriquecida com P no lodo. Apesar de existirem muitos aspectos a serem esclarecidos a respeito destas tecnologias, destaca-se que a reciclagem e a recuperação do P presente no ES representam importantes avanços na promoção da sustentabilidade no uso deste recurso que está ligado diretamente à segurança alimentar global.

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“…All types of domestic wastewater generated by the residents is discharged directly into the household Johkasou and released into the environment or reused after treatment . The main process of Johkasou comprises the anoxic/oxic (A/O) coupled biofilm system, and this process has the advantages of high pollutant treatment efficiency, high impact resistance, and compact structure, which are especially suitable for the onsite treatment of wastewater. , With a half-century of development and improvement, the household Johkasou has attained globally sufficient advancement in terms of process and management technology, and the system has reached a cost-effectiveness ceiling. However, there are still two disadvantages limiting the wide application of Johkasou.…”

Section: Introductionmentioning

confidence: 99%

Onsite Source-Separation and Synergistic Treatment of Household Wastewater: Mechanism Elaboration, Technology Optimization, and Advantage Analysis

Shu

Wang

et al. 2022

ACS EST Water

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Onsite treatment of wastewater is a suitable sanitary drainage strategy for decentralized residences. With the technological developments in process and management, the conventional onsite treatment system has reached a cost-performance ceiling, and breaking through this ceiling is a new challenge. Based on the advantages of onsite systems in the respective collection of toilet wastewater and washing wastewater, an onsite source-separation and synergistic treatment (O3ST) system was introduced in this research after the features of these two kinds of wastewater were elucidated. After a 363-day operation, the mechanism of Npollutant removal by partial nitritation and denitritation of the O3ST system was elaborated, and the removal performance of this system was tentatively optimized by applying the strategies of reflux setting and alkalinity regulation. Subsequently, an advantage analysis of the O3ST system was conducted. The application of this system improved upon the stability and resilience of onsite systems due to the achievements in the load separation of wastewater quality and quantity. Moreover, the TN removal rate reached 25.2 g/day/m 3 , and the sludge observed yield was as low as 0.087 gVSS/gCOD. The technical feasibility and superior cost-performance of the O3ST system were verified, providing support for system optimization and engineering.

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Performance of modified one-stage Phoredox reactor with hydraulic up-flow in biological removal of phosphorus from municipal wastewater

Cited by 41 publications

References 27 publications

Feasibility Study of Anaerobic Baffled Reactor Coupled with Anaerobic Filter Followed by Membrane Filtration for Wastewater Treatment

Feasibility Study of Anaerobic Baffled Reactor Coupled with Anaerobic Filter Followed by Membrane Filtration for Wastewater Treatment

Reciclagem biológica do fósforo a partir do efluente suíno originário da biodigestão anaeróbia: uma revisão

Onsite Source-Separation and Synergistic Treatment of Household Wastewater: Mechanism Elaboration, Technology Optimization, and Advantage Analysis

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