mixing matters blog

Industrial Mixing topics from your mixing experts

Mixing matters blog - Covering any topic involving industrial mixers and utility mixers

mixing for dissolved air floatation
Mixer Configuration

Mixing for Dissolved Air Flotation (DAF Systems)

Coagulation, flocculation and flotation systems Dynamix is often called on for its process experience in many industries because the mixer is at the heart of these processes.  DAF systems are used across many industries with many unique requirements which Dynamix is familiar with. There really isn’t a one size fits all or a configuration template that works for all processes when it comes to DAF systems. Ideally, the Dissolved Air Flotation (DAF) process is used for thickening of combined primary and secondary sludge removing low-density materials such as microorganisms (algae, cysts), natural organic matter (NOM) and floc in low turbidity, soft waters (typically using coagulation and flocculation). Typically, DAF systems are a faster and more reliable alternative to sedimentation in the clarification

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waste water treatment
Mixer Configuration

Anoxic and Aerobic MBBR Mixing

Moving Bed Biofilm Reactor MBBR Mixing Process Anoxic & Aerobic MBBR Mixing Proper mixing within anoxic and anaerobic MBBR zones can improve the bioorganic nutrient conversion processes, minimize operational footprint, reduce energy costs and improve water treatment efficiency. The Moving Bed Biofilm Reactor (MBBR) or IFAS (Integrated Fixed-film Activated Sludge) technologies are now more commonly used to maximize the efficiency in treating wastewater from industrial applications that produce high concentrations of BOD, COD and TSS. This newly adopted technology has become more efficient than traditional biological wastewater treatment processes capable of achieving nearly complete nitrate/nitrite-nitrogen (NOX-N) reduction. It also reduces water treatment plants footprint by minimizing stages previously required to filter BOD from biosolids. The MBBR Process In short, MBBR is

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Quality Mixing
Mixer Configuration

Agitator Design for Wastewater Clarification – Part 2

Clarification on Flocculation In our previous article, Agitator Design for Wastewater Clarification Part 1, we looked at how to optimize a mixer for the unit process of coagulation. In wastewater treatment, coagulation is normally followed by flocculation. While coagulation is used to destabilize and agglomerate suspended waste particles, flocculation brings the colloids out of suspension in the form of floc, and allows the particles to be more readily removed from the water stream. In this article, we will examine the process of flocculation, the flocculator mixer, and how mixer parameters change to achieve the desired result. Flocculation Following the coagulation of destabilized microscopic particles in wastewater, the process of flocculation encourages the newly formed micro-floc to stick together, making even larger clumps

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Mixing in water treatment
Mixer Configuration

Agitator Design for Wastewater Clarification – Part 1

Clarification on Coagulation Clarification of water using coagulating agents has been practiced since ancient times. The use of alum as a coagulant dates back to the Romans around 77 AD, and by 1757, England was using alum for coagulation in municipal water treatment. This clarification process remains essential in various water treatment disciplines today. In the modern water treatment plant, the use of coagulants to treat wastewater are better understood, which has led to significant optimization of process equipment and chemistry. Coagulation and flocculation are two common unit processes that are designed to remove very small particulate matter by forcing them to clump or stick together so that they will settle out and be removed from the wastewater as “sludge”.

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P4 Pitch Impeller Flow Pattern
Mixer Configuration

Flash Mixing with a Rapid Mixer

Flash Mixing in Water Treatment The water treatment process truly begins with a very brief turn in a flash mixing chamber. After screening out debris and testing raw water, chemicals that encourage coagulation are added to the water stream. The mixture is agitated quickly and thoroughly in a process called flash mixing. The chemicals introduced into the water stream will attract any very fine particles, such as silt, that will not readily settle or filter out and make them clump together. These larger, heavier formations are called floc, which are much easier to remove from the water. Flocculation Preparation In the case of the flocculation process, the rapid mixer is specifically designed to disperse polymers so they enhance flocculation by optimizing

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Gravy Image
Mixing 101

Mixing at Home: What Do Gravy and Mixing Have In Common?

The Secret to Great Gravy? Thinking In Terms of “Good Mixing” Is there anything better at turning a good holiday meal into a truly great one than a lake of delicious gravy? We have all been caught us all off guard by lumpy, pasty tasting gravy at least once. Usually after we have already covered our turkey and mashed potatoes with it. Thick, rich, and flavourful gravy doesn’t come easy, but properly mixing dry powders with liquids is a simple concept that just takes a little finesse to perfect. If you think about making gravy in terms of “good mixing” you can’t go wrong. First, you only need about 1/4-1/3 cup of holiday bird or roast drippings, being careful to

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