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...

In general, the dryers used are based on those found in chemical, pharmaceutical and agri-food industries. These existing technologies have had to be adapted to properties specific to sludge. Heat ... Sludge treatment ... Sludge treatment Sludge drying Sludge dewatering Evaporis Heliantis ... Sludge dewatering...

The filtration process always comprises the following stages: flocculation using polyelectrolytes, in short contact time flocculators, or sometimes in the pipeline; flocculated sludge ... Sludge treatment ... Filtration Sludge treatment Sludge dewatering Flocculation...

dry solids content is required (often in the region of 65%). Indeed, at this dry solids content, dried sludge has a net calorific value equivalent to that of household waste. Some projects are emerging ... Sludge treatment ... Sludge treatment Sludge drying Dewatered sludge Evaporis Heliantis ... sludge drying to an intermediate dry solids content ... Sludge dewatering...

treatment and sludge digestion, while streamlining energy costs by implementing cogeneration and heat recovery systems. Located in the seaside mangrove swap and soon surrounded by the city, the plant has ... Waste water Sludge treatment ... Nitrification Azurair Wastewater Sludge treatment Denitrification Secondary settling tanks Chlorination Anaerobic Sludge dewatering Biogas Odour Control ... SUEZ signed a contract with the Panama’s Ministry of Heath to design, build and operate for four years the first urban wastewater treatment plant for the capital city, in Consortium with Odebrecht ... Panama wastewater treatment plant (Panama) ... Sludge dewatering Deodorization/Venting/Evaporation Filters Flocculation/Sedimentation/Flotation Methanisation Oxidation/Disinfection Pretreatment Biological processes...

description (figure 5 and photo 2) The thickener is a circular unit. The sludge suspension is introduced into the centre, inside the centre well. Matter settles according to its respective weight ... Sludge treatment ... Densadeg Sludge treatment Sludge thickening Biofilters...

and effective construction is comparable to an advancing screw: as every rounds completed, the reactor rises and takes shape. The sludge mixing inside the reactor requires few energy. key figures more than ... Sludge treatment Methane fermentation Anaerobic ... Sludge heating system to replace an upstream exchanger Construction of reactor in patented Verinox stainless steel Folded steel with the patented Lipp Double-Seam Metal reactor to avoid...

. Figure 6. Schematic diagram of an Evaporis™ LE dryer Evaporis™ LE has the following advantageous characteristics : The density of dried sludge is high thanks to the formation of sludge ... Sludge treatment ... Sludge treatment Sludge drying Evaporis Termylis ... Sludge dewatering...

. The activated sludge technology adopted is a tried and tested method already used in many facilities. In this specific application, it is further optimised by a biological treatment stage (step feed ... Waste water Sludge treatment ... Reuse Aquazur Densadeg GDD/GDE Wastewater Sludge treatment Disinfection Sludge drying ... Milan San Rocco wastewater treatment plant (Italia) ... Sludge dewatering Deodorization/Venting/Evaporation Filters Flocculation/Sedimentation/Flotation Oxidation/Disinfection Pretreatment Biological processes...

The three examples below (figures 42 to 44 and additionally the Shell-Chimie example from refinery could be appended) illustrate the treatment processes employed and results achieved typically ... Waste water Sludge treatment ... Ultrafor Filtration Industrial effluent treatment Chemical industries Sludge treatment Pretreatments Activated sludge Flotation...

Ingenious devices have been developed to replace manual scraping during sludge cake removal. A careful choice of technique is necessary as sludge cake removal must be complete before the filter ... Sludge treatment ... Filtration Sludge treatment Carbonate removal Filters...

technology can be found in the section sequencing batch reactor process. A water treatment plant using the activated sludge system can initially be identified by its F/M ratio (expressed in kg of BOD5.kg-1 VM ... Suspended growth Sludge treatment Clarifiers Denitrification Nitrification Biological reactor Phosphate removal Aerobic Anaerobic Biological processes Cyclor ... suspended growth (activated sludge) process...

level of the OM that undergoes digestion. In UWW wastewater treatment plant, the object set usually consists in using digestion to achieve a 40 to 50 % reduction in the OM content of mixed sludge ... Sludge treatment ... Sludge treatment Sludge stabilization Anaerobic Sludge digestion Biogas Densadeg Methane fermentation Cannon Mixer Digelis...

or with sludge heat treatment. In the latter case, there may be strong odours caused by aldehydes. sources of emission of gaseous and odorous pollutants produced by a wastewater treatment plant raw effluent ... Odour Control Pretreatments Grit removal Oil removal Primary settling Tertiary treatment Sludge treatment Sludge dewatering Odour Olfactometry ... gaseous, odorous pollutants in a wastewater treatment plant...

the main discharge standards Table 5. The main discharge standards Following treatment the sludge’s dry content.will be 7%. description and diagram of the facility screen and homogenisation ... Waste water Sludge treatment ... Densadeg Ultrafor Industrial effluent treatment Agri-food industry Tertiary treatment Sludge treatment Biological processes Membrane bioreactor...

-load activated sludge. Performance levels achieved with biological treatment are normally in the region of 95% of BOD5 and 50 to 80% of COD reduction, depending on the type of process and especially ... Waste water Sludge treatment ... Industrial effluent treatment Pulp and paper industry Methane fermentation Settling Biological processes Pretreatments Tertiary treatment Sludge treatment Odour Control ... Sludge dewatering Deodorization/Venting/Evaporation Flocculation/Sedimentation/Flotation Methanisation Pretreatment Biological processes...

flocculation, particularly upstream from centrifuges and even filter presses. Figure 11. Incorporation of a GDD screen within sludge treatment lines setting up (photo 6) The range goes from 0.5 to 4 ... Sludge treatment ... Centrifugation Sludge treatment Sludge thickening Biofilters Flotation GDD/GDE Flotation units...

Waste water Sludge treatment ... Biofor Cyclor Ultrafor Meteor Turbocirculator Anapulse Industrial effluent treatment Pulp and paper industry Methane fermentation Settling Activated sludge Biological processes Pretreatments Tertiary ... Sludge dewatering Deodorization/Venting/Evaporation Flocculation/Sedimentation/Flotation Methanisation Pretreatment Biological processes...

; optimised final treatment process (water + sludge) including any recycling (long circuit). Figure 14. General scheme for paper mill (whether or not integrated) wastewater treatment internal ... Waste water Sludge treatment ... Biofor Cyclor Ultrafor Meteor Turbocirculator Industrial effluent treatment Pulp and paper industry Methane fermentation Settling Biological processes Pretreatments Tertiary treatment Sludge ... Sludge dewatering Deodorization/Venting/Evaporation Flocculation/Sedimentation/Flotation Methanisation Pretreatment Biological processes...

preparation unit, fitted with dosing pumps. Septic tank. The biological sludge treatment process is comprised of the following: A 30 m3 sludge storage tankmade from HDPE, fitted ... Waste water Sludge treatment ... Meteor Vibrair Biofor Ultrafiltration Industrial effluent treatment Pulp and paper industry Flotation units Sludge treatment Coagulation-flocculation Membrane bioreactor Reverse Osmosis Flotation ... Sludge dewatering Flocculation/Sedimentation/Flotation Biological processes Separations by membranes...