First, in a process called "flocculation," they add a solution that clusters dirt particles together so they can be filtered out.    From Wordnik.com.  [WAVES OF DISEASE] Reference

Difficulties are also experienced with the flocculation step.    From Wordnik.com.  [1. Historical development and experience with water treatment] Reference

Addition of a flocculation agent will make the glaze more creamy.    From Wordnik.com.  [8. Preparation of glazes] Reference

Gentle and slow stirring follows (for flocculation, 10 to 15 min).    From Wordnik.com.  [3. Technologies] Reference

Deposition can also be caused by particle precipitation and flocculation.    From Wordnik.com.  [Soil erosion and deposition] Reference

A second test can be carried out for the optimal ph-value for flocculation.    From Wordnik.com.  [3. Technologies] Reference

When flocculation precedes sedimentation, higher velocities may be appropriate.    From Wordnik.com.  [3. Technologies] Reference

This operation reduces the plasticity of the soil and improves its flocculation.    From Wordnik.com.  [Chapter 7] Reference

Preceding coagulation/flocculation and sedimentation in separate tank, rapid filtration.    From Wordnik.com.  [3. Technologies] Reference

If flocculation preceded settling, the aggregated particles settle at a velocity s between 1 and.    From Wordnik.com.  [3. Technologies] Reference

It was mentioned that mineral substances are used as flocculation aids in modern water treatment.    From Wordnik.com.  [3. Technologies] Reference

After stirring, flocculation and sedimentation, the optimal pH-value is determined from the samples.    From Wordnik.com.  [3. Technologies] Reference

If natural sedimentation is too slow, flocculation may be necessary (specialist help is needed for this).    From Wordnik.com.  [1. Water in camps of Displaced people] Reference

A standard form of water treatment uses the system of sedimentation and flocculation to settle the solids.    From Wordnik.com.  [5. Water: General Principles] Reference

Normally, water should be retained in flocculation tanks for at least 30 minutes to ensure maximum flocculation.    From Wordnik.com.  [8. Water treatment] Reference

Salts acting on soils induce colloidal reactions, alter the characteristics of the water and lead to flocculation.    From Wordnik.com.  [Chapter 11] Reference

It can be combined by preceeding it with coagulation and flocculation, and succeeding it with slow sand filtration.    From Wordnik.com.  [3. Technologies] Reference

It is directly followed by flocculation, a process whereby the products of coagulation are made to agglomerate and form.    From Wordnik.com.  [8. Water treatment] Reference

The local caretaker might not be able to control flocculation as it is an unstable pretreatment process difficult to operate.    From Wordnik.com.  [1. Historical development and experience with water treatment] Reference

Slow sand filters usually face serious operational problems when chemical flocculation and sedimentation are used as pretreatment.    From Wordnik.com.  [1. Historical development and experience with water treatment] Reference

A reliable and successful application of chemical flocculation is, therefore, rather unrealistic for many small water supply schemes.    From Wordnik.com.  [1. Historical development and experience with water treatment] Reference

They modify the pH of the soils in which they are incorporated, resulting in flocculation, the effects of which are often reversible.    From Wordnik.com.  [Chapter 11] Reference

In rural water supply schemes, use of chemicals to enhance sedimentation by flocculation is difficult and, therefore, quite unreliable.    From Wordnik.com.  [1. Historical development and experience with water treatment] Reference

Primary treatment comprising primary flocculation and clarification.    From Wordnik.com.  [The Earth Times Online Newspaper] Reference

Primary treatment comprising of primary flocculation and clarification.    From Wordnik.com.  [The Earth Times Online Newspaper] Reference

Clarification equipment comprising primary flocculation and clarifiers.    From Wordnik.com.  [The Earth Times Online Newspaper] Reference

And certainly no more flocculation or isotopic spin in casual conversation.    From Wordnik.com.  [VERBATIM: The Language Quarterly Vol XIII No 3] Reference

Larger ranges are intrinsically associated to vesicles flocculation/precipitation.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Today two methods are used to filter out unwanted contaminants: flocculation and reverse osmosis.    From Wordnik.com. Reference

But there are two characteristics that I want to draw attention to - flocculation and attenuation.    From Wordnik.com.  [thecookscottage] Reference

Fig. 12: Hydraulic mixing in flocculation tank. a) vertical, b) horizontal flow.    From Wordnik.com.  [3. Technologies] Reference

Charge exchange, flocculation adsorption of colloidal matter (boundary layer processes).    From Wordnik.com.  [3. Technologies] Reference

Coagulation, mixing and flocculation.    From Wordnik.com.  [8. Water treatment] Reference

Chemical coagulation, flocculation and settling.    From Wordnik.com.  [1. Intake structures] Reference

57 atoms moving about in the solution may be the cause of the clumping or flocculation.    From Wordnik.com.  [The Birth-Time of the World and Other Scientific Essays] Reference

Coagulation and flocculation.    From Wordnik.com.  [3. Technologies] Reference

The flocculation process.    From Wordnik.com.  [edie.net - Latest News] Reference