aeration sludge Up to 40% reduction of sludge evacuation costs Increase dryness by 5 to 10 % compared to a conventional digestion Sludge volume is reduced by 1/2 compared to treatment line without ... Sludge treatment ... Sludge treatment Sludge digestion Biogas Digelis ... Ability to double digester capacity in existing installations Reduce the capacity needed for the final drying step Auto-Thermal reforming of biologically treated sludge Fully ... A process that halves the volume of sludge cake while boosting biogas production ... advanced digestion of biological or and mixed sludge by thermal hydrolysis – Digelis® TH...

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...

aerated storage Aerated storage must not be regarded as stabilisation treatment: its role solely consists in storing sludge over periods of up to several months, without creating any nuisance ... Sludge treatment ... Sludge treatment Sludge stabilization Anaerobic Sludge digestion...

. The drying unit comprises the following main items of peripheral equipment : wet sludge and then dry sludge handling facilities; heat exchange fluid loop; vapour treatment with or without heat ... Sludge treatment ... Sludge treatment Sludge drying Dewatered sludge Evaporis ... Sludge dewatering...

internal collection The above descriptions of the different clarifiers specified whether or not they included a scraper mechanism: without scraper system: the sludge is gravity concentrated ... Settling Settling tanks Sludge treatment ... sludge removal mechanisms...

A wastewater treatment plant, regardless of its size, its effluent quality targets and its treatment approach, will produce sludge: the amount produced will be linked to the very nature ... Waste water Sludge treatment ... Cyclor Wastewater Sludge treatment Biofiltration Sludge drying Biological phosphate removal ... end use of sludge: global optimisation of water and sludge...

Developed to take advantage of the different properties of lime (sanitization, reduction of odors), Deshydris® Lime is used at the end of the sludge treatment process. The biosolids, thanks ... Sludge treatment ... Sludge dewatering Sludge treatment Dehydris Lime ... Biological stability of the produced biosolids (due to very homogeneous sludge-lime mix) Granular structure of the final product means that accumulations hold their form Lower operating ... Deshydris® Lime, pre-liming for sludge with centrifugation, is suited to the dewatering of all type of sludge, fresh or digested from urban wastewater treatment and to any size plant. ... advanced dewatering of sludge by pre-liming before centrifugation – Deshydris® Lime ... Sludge dewatering...

to adapt to polymer treatment conditions. Improvements in terms of dry solids contents, compared with the conventional filter, will very much depend on the type of sludge and the type of conditioning ... Sludge treatment ... Filtration Sludge treatment Filters...

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...

for biological processes (thermophilic anaerobic digestion, pasteurisation – see chapter liquid sludge treatment), or responsible for thorough oxidisation of organic matter (wet oxidation, see section organic ... Sludge treatment ... Sludge treatment Anaerobic Oxidation Dewatered sludge ... Sludge dewatering...

on the discharge regulations, the available approaches being those described in tertiary treatment; thickening, dewatering; drying and/or incineration. Given that chemical industry sludges ... Waste water Sludge treatment ... Biolysis Industrial effluent treatment Chemical industries Sludge treatment Tertiary treatment ... final treatment plant ... Sludge dewatering Biological processes...

at the inlet. Figure 32. Geometric parameters bowl diameter D and LT/D ratio The diameter is characteristic of the machine ranges and will vary from 0.25 to 1.1 m in sludge treatment ... Sludge treatment ... Sludge treatment Centrifugation...

of activated sludge : Biological treatment calls upon a wide variety of micro-organisms, mainly bacteria. By absorbing soluble and suspended constituents contained in wastewater, these micro-organisms convert ... 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 ... Meistratzheim wastewater treatment plant (France) ... Sludge dewatering Deodorization/Venting/Evaporation Filters Flocculation/Sedimentation/Flotation Methanisation Pretreatment Biological processes...

sizing The following constitute the basic data required to define the heat balance for an incinerator: the mass flow rate of the sludge to be processed expressed in kg · h–1; the dry solids ... Sludge treatment ... Sludge treatment Sludge incineration Dewatered sludge Thermylis ... Sludge dewatering...

Drainis® GD (Grit Drainage) gravitates the flocculated polymer sludge through a screen (grid). Elastomeric scrapers push the sludge to the end of the screen. Its washing is automatic. The Drainis ... Sludge treatment ... GDD/GDE Sludge treatment Sludge thickening ... Drainis ® GD has a drainage screen with a progressive mesh size that optimizes Dynamic Sludge Thickening. ... direct thickening screen on biological sludge of different concentration – Drainis ® GD...

Sludge up to 2 times as concentrated on leaving treatment 50% Reduction of energy consumption among references Panama (Republic of Panama) 140 m3/h Prague (Czech Republic) 300 m3/h ... Sludge treatment ... Drainis Turbo Sludge treatment Sludge thickening ... Reduced polymer consumption due to stability of the sludge concentration A fully automatic process for just-in-time treatment without storage or labor intervention Limits greenhouse gas ... biological sludge thickening system including a preliminary concentration stage – Drainis® Turbo...

the hydrothermal carbonization of the organic matter contained in sludge, in a thermal conditioning reactor operating between 175°C and 220°C at low pressure (< 30 bar). The ultra-dewatering workshop can ... Sludge treatment Sludge dewatering Dehydris Twist...

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...

been adjusted accordingly (especially the reinforced frame); this version has also been designed for processing aggressive sludge (reinforced anti-corrosion treatment). GDE or GDD + superpress (figure ... Sludge treatment ... Sludge treatment Filtration Filters...

These presses, able to develop high pressure, are applied exclusively to paper mill sludge and providing that this sludge contains more than 45-50% of fibres. Therefore, applications remain rare ... Sludge treatment ... Filtration GDD/GDE Sludge treatment...