eps Articles
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EPS Food Containers Can be Recycled
EPS food containers can be recycled. In our daily life, we can see vast majority of EPS food-service products are used in commercial districts. However, there is no collection of EPS for recycling, as EPS food containers are typically not “clean” enough to be recycled. Plus, the high costs of collecting, sorting, and transporting this big volume EPS make the EPS food containers ...
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Three-dimensional excitation emission matrix fluorescence spectroscopy and gel-permeating chromatography to characterize extracellular polymeric substances in aerobic granulation
Three-dimensional excitation emission matrix (EEM) fluorescence spectroscopy and gel-permeating chromatography (GPC) were employed to characterize the extracellular polymeric substances (EPS) in aerobic granulation. EPS matrix in this study was stratified into four fractions: (1) supernatant, (2) slime, (3) loosely bound EPS (LB-EPS), and (4) tightly bound EPS (TB-EPS). The results showed that ...
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Behaviour of bacterial extracellular polymeric substances from activated sludge: a review
Extracellular Polymeric Substances (EPS) are the predominant constituents of activated sludge and dramatically affect its properties. As EPS constitute as much as 50?90% of the solid phase of sludge, the use of EPS may bring a great reduction in sludge volume and mass, which have been great environmental interest. In this paper, results of over 60 publications related to structure, composition, ...
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Recycling EPS FOAM With EPS Shredder and Compactor
Used EPS, also called Styrofoam or expandable polystyrene foam, is light, hygienic and commonly used to pack food, drinks, fragile and deformable goods. Usually, EPS products are 98% air and only 2% PS. It has been a big environmental problem due to the fact that the material is difficult to recycle and costly to transport. Harden Machinery has been dedicated to EPS volume reduction technologies ...
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Effects of Fe(III) on biofilm and its extracellular polymeric substances (EPS) in fixed bed biofilm reactors
The effects of Fe(III) on the biofilm mass and activity, the biofilm micromorphology as well as the composition and functional groups characteristics of extracellular polymeric substances (EPS) in biofilm were investigated in laboratory-scale fixed bed biofilm reactors. The results showed that 2 mg/L of Fe(III) promoted the biofilm mass and improved the biofilm activity, but 16 mg/L of ...
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Mechanism of adsorption of ferric iron by extracellular polymeric substances (EPS) from a bacterium
Acidiphilium sp.The aim of this study was to assess the sorption of Fe(III) by extracellular polymeric substances (EPS) of the Acidiphilium 3.2Sup(5) bacterium, which has promising properties for use in microbial fuel cells (MFC). The EPS of A. 3.2Sup(5) was extracted using EDTA. The sorption isotherms were determined using aliquots of purified EPS. The exosubstances loaded with metal were characterized by ...
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Effective methods for extracting extracellular polymeric substances from Shewanella oneidensis MR-1
Extracellular polymeric substances (EPS) play crucial roles in bio-aggregate formation and survival of bacterial cells. To develop an effective but harmless method for EPS extraction from Shewanella oneidensis MR-1, five extraction methods, i.e. centrifugation (control), heating (40, 45, 50, and 60 °C), and treatments with H2SO4, ethylenediaminetetraacetic acid (EDTA) and NaOH, were examined, ...
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Extracellular polymeric substances and dewaterability of waste activated sludge during anaerobic digestion
Anaerobic digestion of waste activated sludge was conducted to gain insight into the mechanisms underlying change in sludge dewaterability during its anaerobic digestion. Unexpectedly, the results indicated that sludge dewatering properties measured by capillary suction time only deteriorated after 10 days of anaerobic digestion, after which dewaterability recovered and remained stable. The ...
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Porous structure and spatial characteristics of aerobic granules
Cryosectioned granules were observed in microstructure, Extracellur Polymeric Substances (EPS) and metal distribution. Aerobic granules composed of pores and channels that were not plugged by EPS, with rather open structure. Microorganisms proliferated mainly on the surface of granule and on the wall of channels, carbohydrate EPS mainly distributed on the surface of granules, and protein EPS ...
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Long-Term Water Quality Monitoring Deployments with the Sea-Bird Hydrocat-Ep - Case Study
The new Sea-Bird Scientific HydroCAT-EP incorporates a suite of physical and biogeochemical sensors into a single, robust instrument designed to maximize water quality parameters and give sustained accuracy. The instrument uses the same high quality Sea-Bird and WET Labs sensors found on their industry leading CTDs and ocean systems in a robust, compact package designed for extended ...
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Evaluation of extracellular biopolymer and its impact on bioflocculation in activated sludge bioreactors
The influence and dynamics of bacterial extracellular polysaccharide (EPS) polymer production and its impact on bioflocculation in activated sludge (AS) bench-scale reactors were investigated. The impact of food to microorganism ratio (F/M), reactor configuration and easily biodegradable carbohydrates in influent streams on biological processes that support or weaken good floc formation and the ...
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Plastic Foam Pelletizing Line
Plastic foam pelletizing line is mainly used for recycling various waste foam. The recycled granules can be made into other new products. Plastic foam pelletizing line includes a horizontal EPS foam compactor, plastic foam extruder, EPS foam melting machine and others. Operation video of EPS EPE foam granulating recycling machines: https://youtu.be/Tym7oQASxRU More details about this machine are ...
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Optimization for extracellular polymeric substances extraction of microbial aggregates
The extracellular polymeric substances (EPS) are important macromolecular components in microbial aggregates. The three EPS extraction methods – ultrasound + cation exchange resins (CER) + sulfide, ultrasound + formamide + NaOH, and ultrasound + heat – were investigated in the study, and the component differences of extracted EPS from the loose ...
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Analysis of extracellular polymeric substance (EPS) release in anaerobic sludge holding tank and its effects on membrane fouling in a membrane bioreactor (MBR)
Amongst sludge reduction strategies, the anaerobic side-stream sludge holding tank (SHT) is of particular interest because it has shown significant sludge reduction efficiency. However, due to the anaerobic and starving environment of the SHT, the release of extracellular polymeric substance (EPS) may be stimulated, and it may hamper the application of the SHT to the membrane bioreactor. In ...
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China EPS foam recycling situation and technology progress
China EPS foam recycling situation and technology progress In recent years, EPS (expanded polystyrene) foam recycling are attention by relevant departments, regulatory guidance and policy support were introduced. From the whole, made our EPS foam recycling was no small accomplishment. Following several EPS foam recycling technology to achieve the degree of practical methods elaborated. 1. ...
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Irreversible fouling of membrane bioreactors due to formation of a non-biofilm gel layer
Extra-cellular polymeric substances (EPS), known to contribute to fouling in membrane bio-reactors (MBRs), are generally divided into bound and free EPS. The free EPS are able to form a gel layer on the membrane active surface. The mechanisms involved in formation of such layer and its effects on performance of the MBR membranes were studied. The free EPS, extracted by centrifugation and ...
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Moisture detection for semi gases via EP-IR Spectroscopy
Introduction EP-IR is a new technology that provides opportunities for uncharted territories One of these territories is moisture analysis What limit of detection for moisture can be achieved? EP-IRGAS Encoded Photometric-Integrated Real-Time Gas Analysis Solution Incorporates an Aspectrics 128 channel EP-IR spectrometer and an integrated CIC Photonics 6m 4Runner long path gas cell ...
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Shredding Equipment For EPS Foam Recycling
Polystyrene (also known as EPS Foam or Styrofoam) is a highly popular plastic packaging material which finds wide application in packaging of food items, electronic goods, electrical appliances, furniture etc due to its excellent insulating and protective properties. Styrofoam is also used to make useful products such as disposable cups, trays, cutlery, cartons, cases etc. Shredding Equipment For ...
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The effect of flow velocity on the distribution and composition of extracellular polymeric substances in biofilms and the detachment mechanism of biofilms
Flume experiments were conducted to investigate the distribution and composition of extracellular polymeric substances (EPS) in biofilms and the detachment mechanism of biofilms grown under different flow velocity conditions. The results of biofilm growth kinetics showed that the growth trends were coincident with the logistic growth model. The growth kinetics parameters reached their maximum ...
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Spatial distribution of groundwater pollution in the Porsuk River Basin (PRB), Turkey
The groundwater in the alluvium aquifer of the Eskisehir Plain (EP) is polluted by wastewaters transported through Porsuk River, agricultural-industrial activities, river-groundwater interactions and unsanitary landfill. Porsuk River flows throughout the alluvium aquifer in the EP. In this study, the effects of anthropogenic activities on groundwater quality in the EP were investigated. Since the ...
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