Ultragreen™ combines both a biological treatment using activated sludge and a clarification by immersion of flat sheet membranes. Water to be purified enters into a reactor where it is put...

to any discharge constraints (carbon, nitrogen and phosphorous treatment, reuse, disinfection…). The processes are implemented as follows: UCD® ASC (formerly known as Minibloc) : Activated Sludge...

of reagents, to greenhouse gases and permanent waste); generating re-usable by-products (sludge for agricultural application, creating new materials from ash, etc.). All these considerations...

as an anti-foaming agent. In view of the high levels of substrate contamination, there is no need for a clarifier and for recycling the biomass to the aerator because the quantity of sludge formed...

’s entire horizontal section; it is easier to rake large quantities of sludge. On the other hand, in drinking water, so as to avoid damaging the (fragile) floc when transferring it from...

treatment units in order to increase the existing treatment capacity of the plant by 190,000 m³/day to reach a total capacity of 800,000 m³/day. Phase 1 also includes the addition of a sludge treatment...

IFAS (Integrated Fixed film Activated Sludge) Figure 36. Meteor IFAS (Integrated Fixed film Activated Sludge) In this configuration, activated sludge (free culture) and a fixed culture...

in fundamental physical-chemical engineering processes applicable to water treatment, it produces plaques that hook up easily and that do not give way under the weight of the sludge; choosing a diameter...

that is used to study the respiratory action of activated sludge, using a small volume sample (a few mL) depending on the oxygen concentration. The respirometer can be used to determine the respiratory...

and conditions applicable to fluid flow and to wall characteristics Q is expressed in watts or in mth·h–1 depending on the system of units selected. In the case of complex media such as sludge...

by sludge masses in fast clarifiers (see sludge blanket settling tanks and sludge recirculation settling tanks) and by granular matter (sand and other filtering matter, and especially the GAC that has been...

delicate equipment. On these grounds, comminution is now only rarely advocated. On the other hand, it sometimes replaces fine barscreening in sludge treatment. A pressurised comminutor is used...

The choice of treatment will depend on the radionuclides present and in problems associated with the waste: sludge from clarifiers, filter materials etc. Coagulation-flocculation treatments...

are all parasites). In plankton and in the fauna founding activated sludge, there are many protozoa whose significance and whose role are extremely important (see importance of aquatic micro...

pollutants such as cyanides and sulphides from industrial effluent; pofine treatment for biological water treatment systems in the event of sludge bulking; gas scrubbing to remove nitrogen oxides...

Wastewater treatment plant - Odour removal unit Sludge and urban wastewater treatment can emit, in more- or less-significant proportions, undesirable airborne emissions. For example...

. This temperature must be as high as possible and, therefore, involve a minimum amount of added water. quick lime in powder form Quick lime used in water and sludge treatment usually satisfies the following...

conditions prevail (see page 2 of suspended growth (activated sludge)); the anaerobic digestion method when reactions take place away from air, in a reducing medium. After it has been degraded, organic...

, sludge collection etc.) if necessary with the inclusion of CFD (e.g. Telibong plant at Kota Kinabalu, Malaysia). Converting to lamellar units (e.g. Piton du Milieu, Mauritius; Rivière Blanche, Martinique...

, in this case, there are no suspended solids and, therefore, no requirement for concomitant clarification (however, subsequent filtration remains essential). The main difference with sludge contact precipitation...