Relevant bibliographies by topics / Soluble microbial product

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Soluble microbial product'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Soluble microbial product.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Soluble microbial product"

1

Boero, V. J., W. W. Eckenfelder, and A. R. Bowers. "Soluble Microbial Product Formation in Biological Systems." Water Science and Technology 23, no. 4-6 (1991): 1067–76. http://dx.doi.org/10.2166/wst.1991.0558.

Full text
Abstract:
The formation of soluble microbial products was evaluated in batch reactors using radiolabeled 14C-phenol and 14C-glucose. Soluble microbial products, SMP, resulted from intermediates or end products of substrate degradation and endogenous cell decomposition. On an organic carbon basis, the SMP produced after A8 hours averaged 1A.7 (±3.7) percent of the initial phenol and 3.1 (±0.4) percent of the initial glucose. The SMP were categorized as substrate utilization products, having a biodegradable and non-biodegradable fraction, and biomass associated products, which were only non-biodegradable.
APA, Harvard, Vancouver, ISO, and other styles
2

Le-Clech, Pierre, Yulita Marselina, Richard Stuetz, and Vicki Chen. "Fouling visualisation of soluble microbial product models in MBRs." Desalination 199, no. 1-3 (2006): 477–79. http://dx.doi.org/10.1016/j.desal.2006.03.110.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Goorany, O., and I. Oztürk. "Soluble microbial product formation during biological treatment of fermentation industry effluent." Water Science and Technology 42, no. 1-2 (2000): 111–16. http://dx.doi.org/10.2166/wst.2000.0300.

Full text
Abstract:
The most important factor that affects the quality of effluents and overall organic matter removal in biological treatment processes is the presence of soluble microbial products (SMP) that are produced during biological treatment and remain in effluent. High strength wastewater from fermentation industry (FIE) was used as a slowly degradable substrate to investigate SMP formation in aerobic and anaerobic treatment. For SMP determination which forms a major part of residual soluble COD of the wastewater, the initial inert soluble COD (SI) was determined. It was found that SI/So is 0.122 and 0.
APA, Harvard, Vancouver, ISO, and other styles
4

Orhon, D., N. Artan, and Y. Cimşit. "The Concept of Soluble Residual Product Formation in the Modelling of Activated Sludge." Water Science and Technology 21, no. 4-5 (1989): 339–50. http://dx.doi.org/10.2166/wst.1989.0236.

Full text
Abstract:
The soluble effluent COD of a well operated activated sludge plant is likely to be composed almost entirely of organic matter generated by microbial activity. There is evidence to show that a significant portion of this soluble organic matter is non-degradable and may be due to similar microbial mechanisms. A model for the formation of these soluble residual products, (SRP), is propose'd, relating the SRP formation to the hydrolysis of non-viable cellular materials in the reactor. The set of equations describing the model are successfully calibrated and verified for a set of representative exp
APA, Harvard, Vancouver, ISO, and other styles
5

Lynd, Lee R., Paul J. Weimer, Willem H. van Zyl, and Isak S. Pretorius. "Microbial Cellulose Utilization: Fundamentals and Biotechnology." Microbiology and Molecular Biology Reviews 66, no. 3 (2002): 506–77. http://dx.doi.org/10.1128/mmbr.66.3.506-577.2002.

Full text
Abstract:
SUMMARY Fundamental features of microbial cellulose utilization are examined at successively higher levels of aggregation encompassing the structure and composition of cellulosic biomass, taxonomic diversity, cellulase enzyme systems, molecular biology of cellulase enzymes, physiology of cellulolytic microorganisms, ecological aspects of cellulase-degrading communities, and rate-limiting factors in nature. The methodological basis for studying microbial cellulose utilization is considered relative to quantification of cells and enzymes in the presence of solid substrates as well as apparatus a
APA, Harvard, Vancouver, ISO, and other styles
6

Lu, S. G., T. Imai, M. Ukita, M. Sekine, and T. Higuchi. "Modeling prediction of membrane bioreactor process with the concept of soluble microbial product." Water Science and Technology 46, no. 11-12 (2002): 63–70. http://dx.doi.org/10.2166/wst.2002.0718.

Full text
Abstract:
The existence of soluble microbial products (SMP) produced by microbial cultures involved in biological wastewater treatment process has been widely investigated. This paper aims to establish an available mathematical model by incorporating the SMP concept into the Activated Sludge Model (ASM) No. 3. Prediction of sewage treatment performance in membrane bioreactor process under intermittent aerobic condition by model simulation was presented, and the results provided a more comprehensive image for this process. It was found that SMP could not be ignored and it contributed about 15% of total C
APA, Harvard, Vancouver, ISO, and other styles
7

Chen, Rui, Long-Fei Ren, Jiahui Shao, Yiliang He, and Xiaofan Zhang. "Changes in degrading ability, populations and metabolism of microbes in activated sludge in the treatment of phenol wastewater." RSC Advances 7, no. 83 (2017): 52841–51. http://dx.doi.org/10.1039/c7ra09225c.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Hu, Jia Peng, Shen Yun Zhao, Chun Yen Chiu, Hsiao Jung Ho, Ming Han Tsai, and Wen Liang Lai. "The Variations of Organic Fluorescent Property in the Effluents from Biotreatment Unit Followed by Constructed Wetland Process." Advanced Materials Research 599 (November 2012): 395–99. http://dx.doi.org/10.4028/www.scientific.net/amr.599.395.

Full text
Abstract:
In this study, EEFM (Excitation emission fluorescent matrix) was used to evaluate the variation of organic characteristic of both source sewages into WuYiShan wastewater treatment. Similar organic property for both source sewages was identified, having four peaks, respectively belonging to fulvic acid, humic acid, aromatic protein and soluble microbial by-product. The fluorescent intensity (FI) of dominant humic acid fraction increased after biological treatment, and decreased in constructed wetland. UV process could result the increase of FI value of humic acid. However, the ratio of FI value
APA, Harvard, Vancouver, ISO, and other styles
9

Xie, Wen-Ming, Bing-Jie Ni, Thomas Seviour, Guo-Ping Sheng, and Han-Qing Yu. "Characterization of autotrophic and heterotrophic soluble microbial product (SMP) fractions from activated sludge." Water Research 46, no. 19 (2012): 6210–17. http://dx.doi.org/10.1016/j.watres.2012.02.046.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Rittmann, B. E., W. Bae, E. Namkung, and C. J. Lu. "A Critical Evaluation of Microbial Product Formation in Biological Processes." Water Science and Technology 19, no. 3-4 (1987): 517–28. http://dx.doi.org/10.2166/wst.1987.0231.

Full text
Abstract:
A critical evaluation of the characteristics of soluble microbial products (SMP) indicates that SMP is comprised of many different types and sizes of molecules and is biodegradable. A portion of SMP is formed at a rate proportional to the rate of substrate utilization (UAP), while the rest is formed at a rate proportional to the concentration of active biomass (BAP). These characteristics are incorporated into a mathematical model that includes the following components: substrate utilization and biomass growth according to Monod kinetics, SMP formation kinetics in proportion to substrate utili
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Soluble microbial product"

1

Murthy, Sudhir N. "Bioflocculation: Implications for Activated Sludge Properties and Wastewater Treatment." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/30647.

Full text
Abstract:
Studies were conducted to determine the role of bioflocculation in the activated sludge unit processes. Laboratory and full-scale studies revealed that bioflocculation is important in determining settling, dewatering, effluent and digested sludge properties (activated sludge properties) and may be vital to the function of all processes related to the above properties. In these studies, it was shown that divalent cations such as calcium and magnesium improved activated sludge properties, whereas monovalent cations such as sodium, potassium and ammonium ions were detrimental to these properties
APA, Harvard, Vancouver, ISO, and other styles
2

Aquino, Sérgio Francisco de. "Formation of soluble microbial products (SMP) in anaerobic reactors during stress conditions." Thesis, Imperial College London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405566.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Robles, Martínez Ángel. "Modelling, simulation and control of the filtration process in a submerged anaerobic membrane bioreactor treating urban wastewater." Doctoral thesis, Editorial Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/34102.

Full text
Abstract:
El reactor anaerobio de membranas sumergidas (SAnMBR) está considerado como tecnología candidata para mejorar la sostenibilidad en el sector de la depuración de aguas residuales, ampliando la aplicabilidad de la biotecnología anaerobia al tratamiento de aguas residuales de baja carga (v.g. agua residual urbana) o a condiciones medioambientales extremas (v.g. bajas temperaturas de operación). Esta tecnología alternativa de tratamiento de aguas residuales es más sostenible que las tecnologías aerobias actuales ya que el agua residual se transforma en una fuente renovable de energía y
APA, Harvard, Vancouver, ISO, and other styles
4

Mines, Paul. "Soluble Microbial Product Characterization of Biofilm Formation in Bench-Scale." Thesis, 2012. http://hdl.handle.net/10754/255432.

Full text
Abstract:
The biological process known as activated sludge (AS) in conjunction with membrane separation technology for the treatment of wastewater has been employed for over four decades. While, membrane biological reactors (MBR) are now widely employed, the phenomenon of membrane fouling is still the most significant factor leading to performance decline of MBRs. Although much research has been done on the subject of MBR fouling over the past two decades, many questions remain unanswered, and consensus within the scientific community is rare. However, research has led to one system parameter generally
APA, Harvard, Vancouver, ISO, and other styles
5

Wu, Siang-Chen, and 吳向宸. "Exploring the membrane biofouling mechanisms of soluble microbial product (SMP) and biofilm by functional bacteria investigation and the relevance between c-di-GMP concentration and biofilm-fouling propensity in membrane bioreactor (MBR)." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/38168304588263810660.

Full text
Abstract:
博士<br>國立中興大學<br>環境工程學系所<br>101<br>Membrane bioreactor (MBR) is a key technology for wastewater reuse because of the high-quality effluent, low sludge yield, and small reactor footprint. However, membrane biofouling in MBRs is a major obstacle that reduces the filtration efficiency, increases the cost-effectiveness, as well as discourages for wide applications. The aims of this study were focused on the mechanism of membrane biofouling attributed to soluble microbial product (SMP) or biofilm attachment by means of investigation of functional bacterial strains. In addition, the relevance between
APA, Harvard, Vancouver, ISO, and other styles
6

Lee, Chou-Ken, and 李宙耕. "Characteristics of Soluble Microbial Products in Activated Sludge." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/40894239441785583346.

Full text
Abstract:
碩士<br>朝陽科技大學<br>環境工程與管理系碩士班<br>93<br>Biological wastewater treatment processes employed various microorganisms with their metabolism to reduce and degrade the organic substances and nutrients in wastewater. Some persistent chemical compounds could be processed by cometabolism. It is quite difficult to remove the residual COD in the effluent which included soluble microbial products (SMPs). The productions and characteristics of the SMPs were functions of the microbial species, growth environment, rate of substrate utilization, temperature, pH and oxidation/reduction potential, etc. The substan
APA, Harvard, Vancouver, ISO, and other styles
7

Lin, Tung-Liang, and 林棟樑. "Characteristics of Soluble Microbial Products in Activated Sludge." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/s5a9u8.

Full text
Abstract:
碩士<br>朝陽科技大學<br>環境工程與管理系碩士班<br>94<br>Biological wastewater treatment processes employed various microorganisms to reduce and degrade organic substances in wastewater. However, it was difficult to remove the residual organics in the effluent, which usually included the soluble microbial products (SMPs). Therefore, the SMPs were essential not only for meeting the standard of effluent but also for improving potential of wastewater reuse. In this study, the activated sludge was acclimated in a sequencing batch reactor (SBR), which operated at different SRT condition. The acclimated sludge was u
APA, Harvard, Vancouver, ISO, and other styles
8

Kuo, Chin-Sheng, and 郭謹陞. "Effect of Soluble Microbial Products Hydrophobicity on Membrane Fouling." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/52575062981375634328.

Full text
Abstract:
碩士<br>國立臺灣大學<br>環境工程學研究所<br>99<br>Biological treatment systems with different sludge retention time (SRT), fixed carrier biological system (FCBS) and activated sludge process (ASP) were studied. Membrane permeate flux fluctuation was constantly monitored. The effect of soluble microbial products (SMP) hydrophobicity on membrane fouling was investigated with the use of DAX-8 resin to isolate hydrophilic and hydrophobic compounds in water samples, with total organic compound (TOC), carbohydrate and protein were taken as quantitative parameters for hydrophobicity analyze. Two different membrane
APA, Harvard, Vancouver, ISO, and other styles
9

Chen, Yi-min, and 陳依旻. "Characteristics and effects of soluble microbial products in membrane bioreactors." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/97562478831002072721.

Full text
Abstract:
碩士<br>國立中央大學<br>環境工程研究所<br>100<br>The purpose of this study was to investigate the characteristics and effects of soluble microbial products (SMP) produced from pre-treatment processes and membrane bioreactors for treating different types of wastewater, including TFT-LCD industry wastewater(TFT-LCD), domestic wastewater(DW), and wool processing industry wastewater(WPI). The samples were analysed with water quality and the composition of SMP for raw wastewater, the influent of MBR, the inside of MBR and the effluent of MBR. After that, the effluent of MBR was filtrated by UF membrane to observe
APA, Harvard, Vancouver, ISO, and other styles
10

"Formation of soluble microbial products (SMP) in anaerobic reactors during stress conditions." Tese, Biblioteca Digital de Teses e Dissertações do IBICT, 2004. http://tede.ibict.br/tde_busca/arquivo.php?codArquivo=223.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Soluble microbial product"

1

Ni, Bing-Jie. "Fractionating and Determination of the Soluble Microbial Products." In Formation, characterization and mathematical modeling of the aerobic granular sludge. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31281-6_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Morgan, Lynette. "Greenhouse produce quality and assessment." In Hydroponics and protected cultivation: a practical guide. CABI, 2021. http://dx.doi.org/10.1079/9781789244830.0246.

Full text
Abstract:
Abstract 'Quality' of greenhouse and hydroponic produce implies suitability for a particular purpose or the degree to which certain set standards are met. Aspects of produce quality may encompass sensory properties (appearance, texture, taste and aroma), nutritive values, chemical constituents, mechanical properties, functional properties and defects. Quality standards and testing methods have been developed for most commercial crops to help ensure consumers receive produce of a suitable standard. These quality standards can range from basic grading for removal of damaged produce and for size, shape, weight and overall appearance, to analytical testing for compositional factors such as acidity, volatiles, dry matter, starch and sugars, toxins, vitamins and minerals, and others. This chapter discusses the components of crop quality, quality improvement, cultural practices to improve greenhouse produce quality (nutrient solution electrical conductivity levels, salinity and deficit irrigation), environmental conditions (including light and temperature) affecting quality of greenhouse crops, role of genetics in the quality of greenhouse-grown produce, microbial quality and food safety. Different quality testing and grading methods are described such as colour analysis, total soluble solids (Brix) testing, sensory evaluation of compositional quality, volatiles testing (aroma), texture and firmness quality assessment.
APA, Harvard, Vancouver, ISO, and other styles
3

Morgan, Lynette. "Greenhouse produce quality and assessment." In Hydroponics and protected cultivation: a practical guide. CABI, 2021. http://dx.doi.org/10.1079/9781789244830.0013.

Full text
Abstract:
Abstract 'Quality' of greenhouse and hydroponic produce implies suitability for a particular purpose or the degree to which certain set standards are met. Aspects of produce quality may encompass sensory properties (appearance, texture, taste and aroma), nutritive values, chemical constituents, mechanical properties, functional properties and defects. Quality standards and testing methods have been developed for most commercial crops to help ensure consumers receive produce of a suitable standard. These quality standards can range from basic grading for removal of damaged produce and for size, shape, weight and overall appearance, to analytical testing for compositional factors such as acidity, volatiles, dry matter, starch and sugars, toxins, vitamins and minerals, and others. This chapter discusses the components of crop quality, quality improvement, cultural practices to improve greenhouse produce quality (nutrient solution electrical conductivity levels, salinity and deficit irrigation), environmental conditions (including light and temperature) affecting quality of greenhouse crops, role of genetics in the quality of greenhouse-grown produce, microbial quality and food safety. Different quality testing and grading methods are described such as colour analysis, total soluble solids (Brix) testing, sensory evaluation of compositional quality, volatiles testing (aroma), texture and firmness quality assessment.
APA, Harvard, Vancouver, ISO, and other styles
4

Rajwar, Deepika, Mamta Bisht, and J. P. N. Rai. "Wastewater Treatment." In Advances in Environmental Engineering and Green Technologies. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3126-5.ch010.

Full text
Abstract:
In recent years, stringent discharge standards prior to the release of effluent into the water bodies have led to implementation of diverse advanced biological treatment processes in various industries. Biological treatment is a fundamental part of industrial wastewater treatment, contains soluble inorganic/organic pollutants. Being a cost-effective process, biological treatment has an economic advantage over chemical and physical processes. It employs a range of microorganisms which as a community form a microbial biofilm. Microbial biofilm provides a diverse range of micro-niches to microbial communities and protection from physical agitation to support metabolic potential and functional stability. Currently, biofilms are applied in wastewater treatment, degradation of toxic waste in water and soil and production of various commercial products. Intensive exploration has proved the importance of biofilm as a highly promising biotechnology, especially in wastewater treatment.
APA, Harvard, Vancouver, ISO, and other styles
5

Sposito, Garrison. "Soil Humus." In The Chemistry of Soils. Oxford University Press, 2016. http://dx.doi.org/10.1093/oso/9780190630881.003.0007.

Full text
Abstract:
Biomoleculesare compounds synthesized to sustain the life cycles of organisms. In soil humus, they are usually products of litter degradation, root excretion, and microbial metabolism, ranging in molecular structure from simple organic acids to complex biopolymers. Organic acids are among the best-characterized biomolecules. Table 3.1 lists five aliphatic (meaning the C atoms are arranged in open-chain structures) organic acids associated commonly with the soil microbiome. These acids contain the unit R—COOH, where COOH is the carboxyl groupand R represents either H or an organic moiety. The carboxyl group can lose its proton easily within the normal range of soil pH (see the third column of Table 3.1) and so is an example of a Brønsted acid. The released proton, in turn, can attack soil minerals to induce their decomposition (see Eq. 1.2), whereas the carboxylate anion (COO-) can form soluble complexes with metal cations, such as Al3+, that are released by mineral weathering [for example, in Eq. 1.7, rewrite oxalate, C2O42-, as (COO-) 2]. The total concentration of organic acids in the soil solution ranges up to 5 mM. These acids tend to have very short lifetimes because of biocycling, but they abide as a component of soil humus, especially its water-soluble fraction, because they are produced continually by microorganisms and plant roots. Formic acid (methanoic acid), the first entry in Table 3.1, is a monocarboxylic acid produced by bacteria and found in the root exudates of maize. Acetic acid (ethanoic acid) also is produced microbially—especially under anaerobic conditions—and is found in root exudates of grasses and herbs. Formic and acetic acid concentrations in the soil solution range from 2 to 5 mM. Oxalic acid (ethanedioic acid), which is ubiquitous in soils, and tartaric acid (D- 2,3-dihydroxybutanedioic acid) are dicarboxylic acids produced by fungi and excreted by plant roots; their soil solution concentrations range from 0.05 to 1 mM. The tricarboxylic citric acid (2-hydroxypropane- 1,2,3-tricarboxylic acid) is also produced by fungi and excreted by plant roots. Its soil solution concentration is less than 0.05 mM.
APA, Harvard, Vancouver, ISO, and other styles
6

Lee, Kibaek, Seonki Lee, Jaewoo Lee, Xiaolei Zhang, and Sang Hyun Lee. "Roles of soluble microbial products and extracellular polymeric substances in membrane fouling." In Current Developments in Biotechnology and Bioengineering. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-819809-4.00003-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Tinker, Peter B., and Peter Nye. "Microbiological Modification of the Rhizosphere." In Solute Movement in the Rhizosphere. Oxford University Press, 2000. http://dx.doi.org/10.1093/oso/9780195124927.003.0012.

Full text
Abstract:
The general questions of root/shoot ratio, allocation of carbon to the root system, and root system dynamics are discussed in chapter 9, and the detailed root structure in chapter 5. Root-derived carbon forms the substrate for rhizosphere and symbiotic organisms, and hence leads to the increase in their population densities close to or in the root. Some of the carbon compounds from the root have specific chemical effects also (see chapter 7). Both quantity and composition of these materials need to be known if their effects are to be understood, and we discuss this subject here. The terminology of these materials is rather confused. The collective name for the injection of plant-derived carbon into the soil around living roots is ‘rhizodeposition’, but this has been used in different ways; for example, it may include root-respired carbon dioxide (Whipps 1990), but Darrah (1996) excludes carbon dioxide. The various forms include (Rovira et al. 1979; Lambers 1987; Whipps 1990) solid tissues lost from the root during growth; mucigel and debris from root surfaces and root cap; low-molecular-weight organic compounds in solution; carbon dioxide produced by root respiration for maintenance and for growth; faunal grazing of root tissues; and carbon transferred into symbionts, such as mycorrhizas and rhizobia. Some authors subdivide certain of these classes further. ‘Rhizodeposition’ is loss from a functioning root, but over a longer period the death and decomposition of whole roots deposits large quantities of carbon into the soil, which continues to act as a more resistant microbial substrate (see chapter 9). All of these materials ultimately are converted to carbon dioxide (except for material formed into stable soil organic matter) and this is difficult to separate from carbon dioxide produced directly by root respiration. The main issue here is how the various forms of deposition alter the ability of the living root system to absorb nutrients. We use the following terms for clarity, and because they relate to the practical means whereby these materials are quantified. As the rhizosphere situation is very dynamic, the results obtained will depend upon the timescale considered. (a) Exudates: soluble low-molecular-weight material that comes directly from the living root (microbial metabolites may be similar, but are excluded).
APA, Harvard, Vancouver, ISO, and other styles
8

Watson, J. E., and R. F. Harris. "Diffusion-Linked Microbial Metabolism in the Vadose Zone." In Vadose Zone Hydrology. Oxford University Press, 1999. http://dx.doi.org/10.1093/oso/9780195109900.003.0011.

Full text
Abstract:
Figure 7.1 is a schematic of nutrient and contaminant transformations and cycling in the vadose zone. As detailed in Harris and Arnold (1995), higher plants take up C, N, P, and S in their most oxidized forms and use, via photosynthesis, the Sun’s energy and low-energy electrons from the oxygen in water to convert the oxidized forms of these essential elements into the relatively high energy reduced forms comprising plant biomass. Following plant death, the biomass residues enter the soil and are attacked by soil organisms as a source of food. The plant residues are depolymerized and the reduced, high-energy monomers are assimilated in part into soil organism biomass, and in part are used as electron donors to combine with the most thermodynamically efficient electron acceptors for dissimilatory energy generation to drive growth and maintenance reactions. In aerobic zones, oxygen is the preferred electron acceptor as long as it is nonlimiting. Death of soil organisms produces dead biomass which re-enters the biological reactor. Ultimately, via respiration in aerobic soils, all the reduced C, N, P, and S materials are released as their oxidized forms, and oxygen is reduced to water to complete the cycle. Ideally, the cycle is conservative, particularly from the standpoint of nonleakage of nutrients, such as nitrate, into the groundwater. Similarly, contaminants entering the vadose zone, either as a function of agronomic use or by accident, should ideally be integrated into the natural nutrient cycles and converted to harmless by-products for assimilation and dissimilation by soil organisms and higher plants (Liu, 1994). Management of nutrient and contaminant transformations by the soil organisms requires a thorough understanding of the ecophysiological and solute transport ground rules that control the nature and rates of transformation options available to the soil organisms. In models of chemical transport and transformation through the vadose zone, colonies of microorganisms are frequently treated as a homogeneous biofilm reactor (Grant and Rochette, 1994). Often, modeling efforts are focused on environmental conditions external to the microbial colony. This consideration of the colony as a biofilm with relatively constant nutrient uptake rates ignores the growth differentiation that occurs as the colony develops
APA, Harvard, Vancouver, ISO, and other styles
9

Kumar, Sunil, Ranjit Kumar, and Pankaj Sood. "Role of Microbial Enriched Vermicompost in Plant-Parasitic Nematode Management." In Nematodes - Recent Advances, Management and New Perspectives [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97934.

Full text
Abstract:
Earthworm causes increase in availability of soil organic matter through degradation of dead matters by microbes, leaf litter and porocity of soil. Vermicompost is a non-thermophilic biodegradation process of waste organic material through the action of microorganism with earthworm. Vermicompost is rich in many nutrients including calcium, nitrates, phosphorus and soluble potassium, which are essentially required for plant growth. Different plant growth hormones like gibberellins, auxins and cytokinins are present in vermicompost, which has microbial origin. Nematodes are mostly small, colorless and microscopic organisms which remain under soil, fresh or marine water, plants or animals, and act as parasite in different conditions, while very few have direct effect on human. The nematodes which are parasitic on plants use plant tissues as their food. They have well developed spearing device, like a hypodermic needle called stylet. It is used to penetrate host cell membrane. Management of plant-parasitic-nematodes therefore is necessary and several means are adopted. Of which, use of bio-chemicals and organic compost have shown encouraging results and proved to be potential in suppressing the nematode population. Vermicompost plays an important role of soil fortification on growth characteristics, such as length, weight, root, shoot branches, number of leaves and metabolism of host plant against nematode infection. Vermicompost fortified plants showed increment in sugar, protein and lipid over untreated control. Increment of these metabolites helps treated plants to metabolically cope up the infection and promotes excessive plant growth. The vermicompost caused the mortality of nematodes by the release of nematicidal substances such as hydrogen sulfate, ammonia, and nitrite apart from promotion of the growth of nematode predatory fungi that attack their cysts. It favours rhizobacteria which produce toxic enzymes and toxins; or indirectly favors population of nematophagous microorganisms, bacteria, and fungi, which serve as food for predatory or omnivorous nematodes, or arthropods such as mites, which are selectively opposed to plant-parasitic nematodes.
APA, Harvard, Vancouver, ISO, and other styles
10

Weis, Judith S. "Controversies in Aquatic Sciences." In Controversies in Science and Technology. Oxford University Press, 2014. http://dx.doi.org/10.1093/oso/9780199383771.003.0023.

Full text
Abstract:
The aquatic sciences have their share of scientific controversies. In some cases the controversy is the classic situation of economic benefit versus environmental protection; in other cases it involves “genuine” scientific debate over uncertainties of the science or debate over what management option is optimal. This chapter discusses two pollution cases that pit scientists from universities or government agencies against those supported by the industry responsible for the pollution. Additional controversies that are also discussed are a disagreement over management options for shoreline protection, and a scientific disagreement over uncertainties in data on fish populations, which is usually the reason for controversies over fisheries. Controversies over effects of pollution often focus on how much (what concentration) of a chemical is needed to produce a certain harmful effect. Chemical companies tend to argue that levels of a chemical found in the environment are too low to cause problems, while environmentalists typically contend that lower levels can be harmful. One chemical about which there is sometimes controversy is oil. In the case of oil spills, debate commonly centers on how long the effects of pollution last. Oil degrades over time, resulting in less oil in the environment. The critical issue here is: When does this degradation reach a point where spilled oil is no longer harmful? Oil is a complex combination of various hydrocarbons that generally floats on water, although some lighter-weight components (the water-soluble fraction) dissolve. Weathering is a process that takes place in the air and water, in which the lightweight components evaporate, thus leaving the heavier components (e.g., tar), which have traditionally been viewed as less toxic. When oil comes into shallow water and marshes, it can coat and smother resident communities. It can sink below the surface of beaches and marshes and remain there for many years. Oil in marsh sediments undergoes some microbial breakdown but very slowly. Effects of a small oil spill (190,000 gallons of number 2 fuel oil) in Falmouth, Massachusetts, in the late 1960s lasted for over a decade, according to Sanders et al. (1980).
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Soluble microbial product"

1

Hu Xi-quan. "Formation of soluble microbial products (SMP) in an anaerobic sludge system." In 2011 Second International Conference on Mechanic Automation and Control Engineering (MACE). IEEE, 2011. http://dx.doi.org/10.1109/mace.2011.5987412.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Holakoo, Ladan, George Nakhla, Ernest Yanful, and Amarjeet Bassi. "Effect of Soluble Microbial Products on Simultaneous Nitrification-Denitrification in MBRs." In World Environmental and Water Resources Congress 2007. American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40927(243)271.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Yang, Qi-Yong, Wei-ping Zhang, and Xin-hua Zhang. "Performance of Soluble microbial products in hybrid membrane bioreactor with suspended carriers." In 2011 International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE). IEEE, 2011. http://dx.doi.org/10.1109/rsete.2011.5965968.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Barber, Steven T., Josh M. Dranoff, and Thomas A. Trabold. "Initial Assessment of Microbial Fuel Cells for the Treatment of Tofu Processing Waste." In ASME 2015 9th International Conference on Energy Sustainability collocated with the ASME 2015 Power Conference, the ASME 2015 13th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2015 Nuclear Forum. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/es2015-49558.

Full text
Abstract:
Due to ever increasing industrial organic material wastewater regulations, there is growing interest in the food production industry for technologies to mitigate soluble waste discharges. Currently, food manufacturers in NYS with wastewaters that have high concentrations of soluble organic material, indicated by its chemical oxygen demand (COD), are charged substantial premiums by publicly owned treatment works (POTWs) to dispose of their high COD wastewaters. As a result, these producers are keen on pursuing more economical and sustainable alternatives. One novel option is a microbial fuel ce
APA, Harvard, Vancouver, ISO, and other styles
5

Garcia, Alfonso, Trevor Place, Michael Holm, Jennifer Sargent, and Andrew Oliver. "Pipeline Sludge Sampling for Assessing Internal Corrosion Threat." In 2014 10th International Pipeline Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/ipc2014-33113.

Full text
Abstract:
Internal corrosion sometimes occurs under deposits of solid particles on the bottom of transmission pipelines. The solids trap water with soluble products and other nutrients which can support the development of microbial communities and may lead to Microbiologically Influenced Corrosion (MIC). Corrosion processes associated with the metabolic activities of specific bacteria have been discussed elsewhere, but the simple presence of large microbial populations may increase the risk of internal corrosion owing to the ability of biofilms to extract and concentrate water at the pipe floor. As a me
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Soluble microbial product' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography