Evaluation of a submerged membrane bioreactor (SMBR) coupled with chlorine disinfection for municipal wastewater treatment and reuse

Ma, Defang; Gao, Baoyu; Hou, Dianxun; Wang, Yan; Li, Qian

doi:10.1016/j.desal.2012.12.016

Cited by 36 publications

(17 citation statements)

References 30 publications

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“…Actually, electricity is the biggest non-staff operating cost item for companies involved in water management. In addition, water and wastewater treatment (Leentvaar et al, 1978;Ma et al, 2013;Sawa et al, 1980;Kalloum et al, 2011;Beltrán-Heredia and Sánchez-Martín, 2009;Brepols et al, 2008;Hutnan et al, 2006) can consider for more than half of the electricity bills of many municipalities (Elliott, 2005;Nemerow et al, 2014). Aeration is the main contributor and can account for approximately 60% of the energy used for wastewater treatment (Fig.…”

Section: Water and Energymentioning

confidence: 99%

Improving energetically operational procedures in wastewater treatment plants

Ghernaout¹,

Alshammari²,

Alghamdi³

2018

Int. j. adv. appl. sci.

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Water and wastewater systems are important energy consumers with an evaluated 3%-4% of total U.S. electricity consumption employed for the movement and treatment of water and wastewater. Water-energy problems are of increasing significance in the case of water shortages, more elevated energy and material costs, and a varying climate. In this economic context, it is vital for utilities to manage performances, both in water and energy utilization. Carrying out energy audits (EAs) at water and wastewater treatment facilities is one method community energy managers may recognize favorable occasions to save water, energy and money. In this review, the significance of energy utilization in wastewater facilities is shown by a case study of a process EA performed for Crested Butte, Colorado's wastewater treatment plant. The EA detected favorable occasions for crucial energy savings (ESs) by examining power intensive unit processes like influent pumping, aeration, ultraviolet disinfection, and solids handling. This case study shows best practices that may be easily applied by facility managers in their search for energy and financial savings in water and wastewater treatment. This article aims to ameliorate community energy managers' comprehension of the action that the water and wastewater sector performs in a community's total energy consumption. The energy efficiency roadmaps defined give information on ESs favorable occasions, which may be employed as a fundamental concept for treating energy management objectives with water and wastewater treatment facility managers.

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Section: Water and Energymentioning

confidence: 99%

Improving energetically operational procedures in wastewater treatment plants

Ghernaout¹,

Alshammari²,

Alghamdi³

2018

Int. j. adv. appl. sci.

View full text Add to dashboard Cite

show abstract

“…However, a variety of genotoxic, mutagenic and/or carcinogenic disinfection by-products (DBPs) are formed when chlorine react with dissolved organic matter (DOM) in MBR effluents (Chellam and Krasner, 2001). Total trihalomethanes formation potential (THMFP) of the MBR treated municipal wastewater was found to be as high as 665 lg L À1 (Ma et al, 2013a). Trihalomethane (THM) formation is depended on amounts and aromaticity of DOM (Ma et al, 2013b).…”

Section: Introductionmentioning

confidence: 99%

Impacts of powdered activated carbon addition on trihalomethane formation reactivity of dissolved organic matter in membrane bioreactor effluent

Gao

et al. 2014

Chemosphere

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“…Furthermore, Membrane-based bioreactors can remove microbiological pathogens, thus avoiding extensive and costly disinfection processes and also the threats possibly coming from disinfection by-products. High biomass concentration acclimatization in the bioreactor is possible by operating MBR at very high SRTs without manifest difficulties [2]. Indeed, the high biomass concentrations and long SRTs can offer favorable conditions for more efficient biodegradation of refractory organic micropollutants.…”

Section: Introductionmentioning

confidence: 99%

“…Nonetheless, municipal wastewater and even the reclaimed waters can have potential human health issues and ecosystem threats due to the presence of trace contaminants and pathogenic impurities [1]. Adequate treatment of municipal wastewater is needed to achieve high quality reclaimed water and to reduce health and ecological hazards [2]. For example, pharmaceutically active compounds (PhACs) which indicate overgrowing portion of trace organic contaminants (TrOCs) in the urban aquatic environment, after human consumption, reach to wastewater treatment plant (WWTP) in metabolised and/or unmetabolised form.…”

Section: Introductionmentioning

confidence: 99%

Incorporating Submerged MBR in Conventional Activated Sludge Process for Municipal Wastewater Treatment: A Feasibility and Performance Assessment

Gurung¹,

Ncibi²,

Fontmorin³

et al. 2016

J Membra Sci Technol

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A pilot-scale submerged membrane bioreactor (MBR) was incorporated in a conventional activated sludge (CAS) process for more than 100 days in order to assess the feasibility and performance on the municipal wastewater treatment. After a stabilization period of 50 days, the MBR unit was operated under various temperatures (21 ± 4°C), mixed liquor suspended solids (MLSS) concentrations (14000 ± 1800 mg L -1 ), and different aeration intensities (3 to 6 m 3 h -1 ). No significant deterioration in membrane flux was observed while operating with high biomass concentration. From the results, the removal of total suspended solids (TSS), chemical oxygen demand (COD), total phosphorus (TP) were enhanced using MBR. However, due to some limiting operational conditions, the total nitrogen (TN) removal was less efficient in MBR than in CAS. The MBR unit was 100% effective in removing E. coli and enterococcus, as well as noroviruses and adenovirus, making it more efficient than CAS. Also, the removal of most of the trace organic compounds (TrOCs) including personal care products, pharmaceuticals, steroid hormones and perfluorinated compounds were enhanced after the incorporation of MBR to CAS, as well as for many heavy metals in MBR.

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Evaluation of a submerged membrane bioreactor (SMBR) coupled with chlorine disinfection for municipal wastewater treatment and reuse

Cited by 36 publications

References 30 publications

Improving energetically operational procedures in wastewater treatment plants

Improving energetically operational procedures in wastewater treatment plants

Impacts of powdered activated carbon addition on trihalomethane formation reactivity of dissolved organic matter in membrane bioreactor effluent

Incorporating Submerged MBR in Conventional Activated Sludge Process for Municipal Wastewater Treatment: A Feasibility and Performance Assessment

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