granulator Articles
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A review on the essential role of substrate on aerobic granulation
Aerobic granulation is a selection pressure-driven cell-to-cell immobilisation process. So far, the essential role of substrates on aerobic granulation has not been well clarified. This paper reviews current studies about aerobic granulation with different substrates. Although substrates do not exert a major selection pressure on aerobic granulation, they will select substrate-related ...
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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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Effect of substrate feeding on viscosity evolution of anaerobic granular sludges
This work aims to describe the effect of the feeding regime of anaerobic activity tests on the limit viscosity (μlim) evolution of the granules. Batch experiments were performed with 3 different sources of substrate: acetate, peptone, and glucose. Despite, the substrate origin was shown to affect the μlim evolution of granules, no clear relationship was found between the μlim evolution, type of ...
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Size reduction of massive purgings start-up lumps, rubber bales, fibre, massive profiles
Neue Herbold SM series granulators are specially designed for all universal types of applications. Through simple modification the SM series granulators can be used for size reduction of: - massive start-up lumps - massive purgings - massive profiles - general plastic scrap with extremely wall thicknesses - voluminous hollow parts such as containers and crates The SM series is designed for ...
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Investigating the influence of elongated anaerobic feeding strategy on aerobic sludge granulation and characteristics in sequencing batch reactor
In this research, two sequencing batch reactors (R1 and R2) were operated with different feeding strategies to investigate the effects of elongated anaerobic feeding mode on the granulation process. For this purpose, R1 was operated in a short-feed strategy (5 min) as a reference, whereas an extended anaerobic feeding of 85 min was applied in R2. Results showed that aerobic granules formed in ...
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Size-dependent microbial substrate uptake kinetics for aerobic granules
Biodegradation kinetics of aerobic granules determined by indirect method of resporimetric technique showed that it followed Monod kinetics, and the kinetic behaviour was size-dependent. It was further demonstrated that biodegradation kinetics was a surface reaction associated phenomenon. It shows that the affinity coefficient of biomass to substrate in terms of qmax/Ks ratio (specific maximum ...
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Towards eco-efficiency: granulated nickel slag's transformation into a product
The granulated nickel slag is the biggest unexploited solid side stream formed in the area of the Harjavalta industrial ecopark in south-west Finland. Nowadays one-quarter of the granulated nickel slag is utilised in the sand blasting and roofing felt industries and three-quarters are still dumped in landfills. At the moment the main obstacles to a wider utilisation of granulated nickel slag are ...
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Filtration media: Shapes and manufacturing processes
The shape of the filtration media and the production process directly affect the absorption capacity of the granulate and consequently the efficiency of filtration. Granules in the shape of a pellet (cylinder) do not facilitate such a high degree of compaction as spherical granules, so that the passage of the air flow becomes easier, as preferential streaming is avoided. This implies less loss ...
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Velocity measurement of bitumen granules - Case Study
Material: Bitumen ...
By ENVEA
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Selection pressure theory for aerobic granulation – an overview
Aerobic granulation technology is an improvement over conventional activated sludge process, where cell-to-cell interactions lead to the formation of stable granules with excellent settleability. Selection pressures are the factors that can strongly influence the formation and growth of aerobic granules. Settling time and the volume exchange ratio (VER) will decide how long the bioparticles ...
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Strength characteristics of aerobic granular sludge
Aerobic granular sludge has a number of advantages over conventional activated sludge flocs, such as cohesive and strong matrix, fast settling characteristic, high biomass retention and ability to withstand high organic loadings, all aspects leading towards a compact reactor system. Still there are very few studies on the strength of aerobic granules. A procedure that has been used previously for ...
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Dynamic changes in microbial diversity of aerobic granules
The bacterial diversity and their population changes were investigated in acetate-fed aerobic granules cultivated in two Sequencing Batch Reactors (SBRs), A and B. The top nine dominant bacteria were isolated, and their growths were tracked in another two SBRs (C and D) which were cultivating granules without selection pressures. The nine bacterial population in C and D were compared to the ...
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Velocity measurement of PVC granules - Case Study
Material: PVC granules Installation: in pneumatic ...
By ENVEA
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Sheet, ST-25EL, Michigan - Case Study
ST-25EL size reducing stamped sheet from thermoforming c/w dischrge conveyor feeding a granulator. The shredder replaced a pinch roller ahead of the granulator to enable feeding of unstamped formed parts. A DC drive motor is incorporated with the shredder gear reducer to facilitate fast and frequent shredder stoppages to prevent pull on the thermoform dies between process ...
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How to Choose a Best Copper Wire Granulator
In recent years, copper wire granulator has been widely used in the industry. Then what should we pay much attention to when buying copper wire granulator? There are four references for you to consider they are separately quality, production quantity, price and after-sale service. First of all, we should put the quality into the most important place. Buying copper wire granulator is to put it ...
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Effect of extended feeding time on aerobic granulation in SBR
Two different feeding lengths were applied to control the granule size. It was found that the size of granules was considerably controlled in R2 (60 min for feeding). However, the settleability in R2 was not as good as that in R1 (12 min for feeding). However, this approach of controlling the granule size also loosens the structure concerning on the difference between SVI5 and SVI30, which might ...
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Wet materials cause blockages - avoid downtime with continuous moisture measurement - Case Study
Customer: Plastics industry Material: PE granules Humidity range: Differentiation dry – humid Installation: Hopper outlet after bagging plant Function: Control of the moisture content in the delivered raw material (PE granulate) ...
By ENVEA
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pH variation and influence in an autotrophic nitrogen removing biofilm system using an efficient numerical solution strategy
A pH simulator consisting of an efficient numerical solver of a system of nine nonlinear equations was constructed and implemented in the modeling software MATLAB. The pH simulator was integrated in a granular biofilm model and used to simulate the pH profiles within granules performing the nitritation–anammox process for a range of operating points. The simulation results showed that pH ...
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Formation of artificial granules for proving gelation as the main mechanism of aerobic granulation in biological wastewater treatment
In this study, gelation-facilitated biofilm formation as a new mechanism is proposed for the phenomenon of aerobic granulation in biological wastewater treatment. To obtain an experimental proof for the gelation-based theory, the granulation process was simulated in a chemical system using latex particles for bacterial cells and organic polymers (alginate and peptone) for extracellular ...
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Transprotekt Ethylene Filters
Bioconservacion's ethylene filters have a new look! Recently Bioconservacion changed the appearance of its Transprotekt filters for ethylene absorption in order to make identifying them easier at all times, from the point of origin to the destination. The new filters have colour coding so that the type of filtration granule being used can be readily ...
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