will take between 30 to 120 minutes. In order to ensure that the reaction is self-sufficient in terms of heat, the amount of COD injected into the reactor must be greater than 25 g·L–1 of COD, and the sludge ... Sludge treatment ... Sludge treatment Oxidation ... Sludge dewatering Oxidation/Disinfection...

Potable water Waste water Sludge treatment ... The prime objective of sampling consists in obtaining representative samples of the element to be analysed: water, sludge, grease, sand, reagents, materials ... The main objective of sampling consists in obtaining representative samples of the compound to be analysed (water, sludge, grease, sand, reagents, materials, gases …). For instance the sampling...

Sludge treatment ... Methane fermentation, sludge, acidification, temperature regulation, pH, safety devices, gas storage, gas treatment...

Sludge treatment ... Suspended growths Analift (mixed digeste, settling thickener tank) and Anapulse (sludge blanket digester)...

Sludge treatment ... Filtration Sludge treatment Filters ... , this is the appliance that is the most widely used in sludge treatment. Its main advantage is that it produces the highest dry solids content of all mechanical dewatering systems. By applying the general surface...

These filters have almost entirely disappeared. Only a few applications remain on carbonate removal sludge or gas scrubbing. In effect, these energy-hungry vacuum filters require sludge ... Sludge treatment ... Filtration Sludge treatment Filters...

These are the type of centrifuges currently most widely used in sludge treatment applications. Their main advantage is a noticeably improvement of the cake dry solids contents that now position ... Sludge treatment ... Centrifugation Biofor Sludge treatment...

There are two available filter belt types (Superpress LP and HP) available for use with the major sludge groups (organic, mineral...) that will withstand more or less pressure. Another version ... Sludge treatment ... Sludge treatment Filtration Filters...

of liquid sludge dries out. This process is far less widespread because of the extensive areas involved and because dry cake removal is very labour-intensive. There are a few rare examples in mechanised ... Sludge treatment ... Sludge treatment Filtration...

Pressure filtration takes place in closed chambers. Unlike the belt filter system, sludge is compelled to undergo the stress applied (creep is not possible). This relatively old technique is still ... Sludge treatment ... Filtration Sludge treatment Filters...

and membranes inflated for 15 to 45 minutes depending on the sludge; conventional cake removal. Unlike the classic filter press, the membrane is able to apply an even pressure over the entire cake surface ... Sludge treatment ... Filtration Sludge treatment Filters...

A centrifuge is characterised on four main criteria: its hydraulic flow rate: number of m3 · h–1 of sludge it can accept; its mass flow rate: kg DM · h–1 (hydraulic flow rate × inlet sludge ... Sludge treatment ... Sludge treatment Centrifugation...

Pre-treatment: there is no longer any need (save in exceptional cases involving certain industrial sludges) to carry out bar screening/straining or grit removal in order to protect the centrifuges ... Sludge treatment ... Centrifugation Sludge treatment...

(1) that opens out into a rotating distributor (10). This distributor spreads the sludge onto the periphery and propels the suspension into the annular space between the bowl (2) and screw (3 ... Sludge treatment ... Sludge treatment Centrifugation...

Treatment using activated sludge comprises the following steps fundamental: a reactor in which the micro-organisms responsible for purification are maintained in suspension and aerated ... Filtration Activated sludge Disinfection...

Wastewater treatment plants, in particular those using activated sludge processes, may be subject to failures which limit the reliability in the performance of purification operations ... Primary settling Sludge treatment...

general The sequencing batch reactor process ( SBR ) involves a single complete mix type reactor in which aeration takes place followed by clarification, whence the designation “sequential”. Sludge ... Greenbass Activated sludge Cyclor...

Purifying biomass that develops in an activated sludge or on any support medium (e.g. biolite, trickling filters supports …) consist of a thoroughly mixed blend of: living or dead micro ... Biomasse Activated sludge Biofilters...

inDENSE® is a sludge densification system based on gravimetric selection of biomass, using hydrocyclones installed on the excess sludge extraction line. Sludge with superior settling ... The improvement of sludge settling ability (SVI) allows either increasing the concentration in the tanks (brownfield) or reducing the volume of the tanks and/or clarifiers (greenfield ... Boost activated sludge for optimized treatment capacity and more sustainable plant ... activated sludge densification system for biological wastewater treatment – inDENSE®...

A model plant in recovering the potential energy from industrial effluent and sludge. With the two existing plants treating wastewater from the Ehn water basin having become obsolete, the SIVOM ... Waste water Sludge treatment ... Filtration Wastewater Sludge treatment Sludge digestion Activated sludge Anaerobic Sludge dewatering Biogas Tertiary treatment Methane fermentation Flotation ... A model plant in recovering the potential energy from industrial effluent and sludge ... Sludge dewatering Deodorization/Venting/Evaporation Filters Flocculation/Sedimentation/Flotation Methanisation Pretreatment Biological processes...