Sludge treatment ... Sludge treatment Aerobic Anaerobic Sludge thickening Sludge dewatering ... General sludge treatment systems: reducing fermentation capacity (stabilization); reducing volumes (eliminating water that is more or less bound with suspended solids) ... Figure 1 illustrates the main stages that can be found in a sludge treatment process (solid line showing the most classic methods or those undergoing development, dotted lines referring to possible ... general sludge treatment lines...

the organic matter in sludge is broken down in an environment lacking in air compared to the stoichiometry; thermolysis is the same process when it takes place in the absence of any exogenous oxygen. This lack ... Sludge treatment ... Sludge treatment Sludge drying Dewatered sludge Gasification Oxidation ... pyrolysis and thermolysis applied to sludge ... Sludge dewatering...

sludge end uses Sludge produced by a water treatment plant has three main uses: recycling: mainly agriculture, with or without supplements but also for reinstating eroded sites (quarries ... Waste water Sludge treatment ... Industrial effluent treatment Sludge treatment Sludge dewatering ... sludge end uses ... Sludge dewatering...

Bringing sludge up to the right temperature (180 to 200 °C) for 30 to 60 minutes results in an irreversible change to its physical structure, significantly reducing its specific resistance ... Sludge treatment ... Sludge treatment Sludge conditioning Sludge thickening Sludge dewatering...

The total solids content includes both the suspended solids and dissolved salts. The total solids content is also used to determine a sludge dry weight (expressed as a %). dry solids content at 105 ... Sludge treatment ... Sludge treatment...

: exothermic reactions released by the oxidation of the products processed (e.g. combustion of the organic matter found in sludge); energy recirculated by the process (e.g. in the case of incineration ... Sludge treatment ... Sludge treatment...

Establishing sludge properties is a fundamental requirement when selecting the treatment method that can be applied to that sludge and when forecasting the efficiency of the machines to be used ... Waste water Sludge treatment ... Industrial effluent treatment Sludge treatment ... sludge characterisation/classification ... Sludge dewatering...

Capable of accepting high loads and providing shorter contact time for the sludge and smaller reactor size. Spiral Heat Exchanger : A unique feature to preheat the fresh sludge ... Sludge treatment ... Digelis Sludge treatment Sludge digestion ... The Digelis™ Fast is an optimized process for thermophilic sludge digestion combined with energy recovery equipment to accelerate the sludge digestion cycle. ...

This section is about settling tanks : static settling tanks, lamellar settling tanks, sludge blanket clarifiers, sludge recirculation clarifiers, densadeg, secondary settling tanks ... » as part of an activated sludge system) present special limitations generated by problems specific to activated sludge (described in suspended growth (activated sludge) process), justifying the inclusion...

Sludge treatment ... introduction Following on from chapter liquid sludge treatment that was devoted to processes applied to liquid sludge (stabilisation and dewatering), this chapter now describes all dewatered ... dewatered sludge treatment ... Sludge dewatering...

Sludge drying units must be subject to appropriate safety measures because they are the source of a number of risks, more specifically in the event of certain malfunctions. Without being exhaustive ... Sludge treatment ... Sludge treatment Sludge drying Aerobic ... Sludge dewatering...

-permeable. Dewatered sludge often has a low porosity; a bulking agent has to be added, usually in the form of a carbonaceous support (20% of the mixture at least must be formed by voids). This degradation caused ... Sludge treatment ... Sludge treatment Composting Dewatered sludge ... Sludge dewatering...

Thermal processes used to destroy the organic matter contained in sludge vary widely. We have restricted ourselves to a description of the most frequent state of the art system. Various methods can ... Sludge treatment ... Sludge treatment Sludge incineration Gasification ... Sludge dewatering...

, the following constitutes an example of a Naratherm dryer heat balance (table 6) : Table 6. NARA heat balance per kg · h–1 of water evaporated (based on a 20 % dry solids content sludge, 90 % dry ... Sludge treatment ... Sludge treatment Sludge drying Evaporis ... Sludge dewatering...

The Pulsator® is a pulsed sludge blanket clarifier. The sludge formed during flocculation is made up of an expansion mass. Water, that has coagulated beforehand, arrives from the bottom ... Reliable whatever the water quality and flow rate Flexible operation : possibility to adjust the pulsation frequency, the duration and sludge extraction flow Reduced operating costs ... Pulsed sludge blanket clarifier including flocculation ... sludge blanket clarification – Pulsator®...

The Bio-S is a treatment plant that uses low load activated sludge, with one single reactor that uses the SBR principle. The Bio-S has been designed and standardised for small communities with a 200 ... Activated sludge...

for separating sludge from treated water. As it is only the sludge that separates from the discs that goes on to the settling tank, lamella are used to reduce ground surface area covered by more than 75%.This ... Activated sludge...

When a sample of sewage fresh mixed sludge is subjected to a 2,000 g centrifugal field for a few minutes in a laboratory centrifuge, we will find the following in the centrifuge pot (figure 29 ... Sludge treatment ... Centrifugation Sludge treatment ... sludge centrifugation suitability...

The sludge produced is predominantly biological requiring typical treatment, considering that the dyes used in textile industries now contain less and less heavy metal content. This sludge can even ... Sludge treatment ... Industrial effluent treatment Textile industry Sludge treatment Odour Control ... sludge treatment/odour control...

unit of filtrate volume by C, sludge suspended solids concentration), the specific resistance to pressure P (rp) is calculated as follows P = filtration pressure, S = filter surface area, C ... Sludge treatment ... Filtration Sludge treatment Sludge conditioning...