Effects of glucose and phenol on soluble microbial products (SMP) in sequencing batch reactor systems

Huang, Guangtuan; Gang, Jin; Wu, Jiequn; Liu, Yongdi

doi:10.1016/j.ibiod.2007.07.015

Cited by 22 publications

(12 citation statements)

References 21 publications

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“…As a result, a lot of studies in the bibliography have been focused on SMP production under different operational parameters. Huang et al . reported a lineal correlation between the effluent SMP and the influent total organic carbon.…”

Section: Introductionmentioning

confidence: 99%

Influence of organic matter type in wastewater on soluble microbial products production and on further ultrafiltration

Ferrer‐Polonio

Fernández-Navarro

Alonso

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND Membrane fouling is the main limiting factor for the application of ultrafiltration (UF) to wastewater treatment as tertiary treatment or in membrane bioreactors. Soluble microbial products (SMP) play the more important role on membrane fouling. In this work, four sequencing batch reactors were operated in parallel using two different simulated wastewaters under operating conditions maximizing and minimizing SMP production. The aim was to study the influence of the wastewater type, which until now has hardly been considered, on SMP production and, consequently, on membrane fouling. RESULTS AND CONCLUSION Results showed that organic matter (OM) type in wastewater greatly influenced SMP production and composition (protein : carbohydrate ratio). The food‐to‐microorganisms (F : M) ratio also significantly influenced SMP production. The lowest protein : carbohydrate ratio was achieved for wastewater containing sodium acetate as OM source at a F : M = 0.2. Finally, both mixed liquor and treated effluent were subjected to an ultrafiltration (UF) process and it was confirmed that the carbohydrate concentration in SMP was the main parameter influencing membrane fouling when the reactor effluent was fed to the UF process. © 2018 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Influence of organic matter type in wastewater on soluble microbial products production and on further ultrafiltration

Ferrer‐Polonio

Fernández-Navarro

Alonso

et al. 2018

J of Chemical Tech & Biotech

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“…Since SMPs play such a significant role in the field of biological wastewater treatment, many studies of SMPs in aerobic10, 11 and membrane bioreactors12–15 have been carried out. In these areas, researchers have made great contributions toward the further understanding of the characteristics of SMPs.…”

Section: Introductionmentioning

confidence: 99%

Fluxionality and σ‐Aromaticity in Small Yttrium‐Doped Gold Clusters

et al. 2008

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Hybrid polymer–nanocrystal photovoltaic (PV) cells have received much attention during the past decade as promising low‐cost solar energy harvesting devices, and showed significant progress with power conversion efficiency reaching 5 % recently. This review starts from the introduction of hybrid materials to their application in electronic devices, with particular focus on bulk‐heterojunction hybrid polymer–nanocrystal PV devices. The synthesis, surface chemistry, and electronic properties of colloidal inorganic nanocrystals are described. The recent development of hybrid PV devices will be discussed from the perspective of tailoring both inorganic nanocrystals and conjugated polymers, controlling polymer–nanocrystal hybrid morphology, engineering polymer–nanocrystal interface, and optimizing device architecture. Finally, future directions for further advancing hybrid PV technology to potential commercialization are also discussed.

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“…The most of researches have focused on the global characteristics of SMPs such as distribution of molecular weights (MW), biodegradability and toxicity [51]. SMPs have a wide range of MW; determination of MW distribution of SMPs sometimes could be very informative and even help evaluating the efficiency of treatment process [52]. There is no standard method for determining the MW distribution of soluble organic compounds.…”

Section: Introductionmentioning

confidence: 99%

Soluble microbial products (SMPs) release in activated sludge systems: a review

Azami

Sarrafzadeh

Mehrnia

2012

J Environ Health Sci Engineer

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This review discusses the characterization, production and implications of soluble microbial products (SMPs) in biological wastewater treatment. The precise definition of SMPs is open to talk about, but is currently regarded as “the pool of organic compounds that are released into solution from substrate metabolism and biomass decay”'. Some of the SMPs have been identified as humic acids, polysaccharides, proteins, amino acids, antibiotics, extracellular enzymes and structural components of cells and products of energy metabolism. They adversely affect the kinetic activity, flocculating and settling properties of sludge. This review outlines some important findings with regard to biodegradability and treatability of SMPs and also the effect of process parameters on their production. As SMPs are produced during biological treatment process, their trace amounts normally remain in the effluent that defines the highest COD removal efficiency. Their presence in effluent represents a high potential risk of toxic by-product formation during chlorine disinfection. Studies have indicated that among all wastewater post-treatment processes, the adsorption by granular activated carbon combined with biologically induced degradation is the most effective method for removal of SMPs. However, it may be concludes that the knowledge regarding SMPs is still under progress and more work is required to fully understand their contribution to the treatment process.

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Effects of glucose and phenol on soluble microbial products (SMP) in sequencing batch reactor systems

Cited by 22 publications

References 21 publications

Influence of organic matter type in wastewater on soluble microbial products production and on further ultrafiltration

Influence of organic matter type in wastewater on soluble microbial products production and on further ultrafiltration

Fluxionality and σ‐Aromaticity in Small Yttrium‐Doped Gold Clusters

Soluble microbial products (SMPs) release in activated sludge systems: a review

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