Abstract: Sludge dewatering process assisted by flocculating reactant, said process comprising an injection of flocculating reactant into the sludge and a step of dewatering said sludge, characterized in that it comprises a preliminary step that consists in mixing said sludge in a mixer (4) comprising a cylindrical chamber (4a) equipped with blades (4c) rotatably mounted on a shaft (4b) rotating at a speed of rotation of between 500 rpm and 4000 rpm, so as to destructure the sludge and reduce the viscosity thereof, and in discharging the sludge from said mixer (4) via a network (11) to said dewatering step, and in that it comprises a step of depressurizing said mixer (4) and said network giving rise to the lysis, by cavitation, of said sludge, said depressurizing step being carried out over a period of at least 0.1 second. Corresponding plant.

Abstract: Sludge dewatering process assisted by flocculating reactant, said process comprising an injection of flocculating reactant into the sludge and a step of dewatering said sludge, characterized in that it comprises a preliminary step that consists in mixing said sludge in a mixer (4) comprising a cylindrical chamber (4a) equipped with blades (4c) rotatably mounted on a shaft (4b) rotating at a speed of rotation of between 500 rpm and 4000 rpm, so as to destructure the sludge and reduce the viscosity thereof, and in discharging the sludge from said mixer (4) via a network (11) to said dewatering step, and in that it comprises a step of depressurizing said mixer (4) and said network giving rise to the lysis, by cavitation, of said sludge, said depressurizing step being carried out over a period of at least 0.1 second. Corresponding plant.

Abstract: Method and installation of thermal hydrolysis of sludges implementing a group of thermal hydrolysis reactors (71,72,73,74) characterized in that it comprises successions of cycles, each of these successions of cycles being dedicated to one of said thermal hydrolysis reactors, each cycle comprising: a step a) for conveying a batch of non-preheated sludges to be treated into a thermal hydrolysis reactor (71,72,73,74), said step for conveying comprising the continuous passage of the sludges of said batch of sludges into a dynamic mixer (3) into which recovery steam is injected; a step b) for injecting live steam into said thermal hydrolysis reactor (71,72,73,74) containing said batch of sludges so as to increase the temperature and the pressure prevailing in this reactor; a step c) of thermal hydrolysis of the batch of sludges in the thermal hydrolysis reactor; a step d) for emptying the content of the batch of hydrolyzed sludges of said thermal hydrolysis reactor towards a recovery vessel (13), and for concomit

Abstract: Method for the continuous thermal hydrolysis of sludges containing organic matter, said method comprising the steps of: simultaneously injecting pressurized steam (100) into said sludges and mixing said sludges with said steam by means of a dynamic mixer-injector (4) so as to obtain a single-phase mixture, conveying said single-phase mixture towards a tube reactor (4) under pressure and bringing about the plug flow of this mixture into said reactor for a retention time that is sufficient and at a temperature that is sufficient to enable the thermal hydrolysis of the organic matter present in said sludges, cooling said single-phase mixture at its exit from said tube reactor to a temperature enabling the subsequent digestion of the hydrolyzed organic matter that it contains, depressurizing said cooled single-phase mixture.

Abstract: The invention pertains to a method for the continuous thermal hydrolysis of sludge to be treated, containing organic matter, said method comprising the steps of simultaneously carrying out the injection of recovered steam into said sludge and mixing said sludge with said recovered steam by means of a primary dynamic injector-mixer so as to obtain a primary uniform mixture; simultaneously carrying out the injection of fresh steam into said primary uniform mixture and mixing said primary uniform mixture with said fresh steam by means of a secondary dynamic injector-mixer so as to obtain a secondary uniform mixture of sludge; conveying said secondary uniform mixture towards a tube reactor under pressure and prompting an essentially plug-type flow of this secondary uniform mixture into said reactor for a residence time that is sufficient and at a temperature that is sufficient to enable the thermal hydrolysis of the organic matter present in this secondary uniform mixture; producing said recovery steam within mea

Abstract: Method and plant to implement the continuous thermal hydrolysis of sludge to be treated containing organic matter, the method comprising at least: a. a step for de-structuring said sludge to be treated producing de-structured sludge; b. a step for the thermal hydrolysis of said de-structured sludge within a thermal hydrolysis reactor producing hydrolyzed sludge; c. a step for cooling said hydrolyzed sludge; said step for de-structuring consisting in: introducing said sludge to be treated into a dynamic mixer; heating said sludge coming from said dynamic mixer, this heating being obtained by the introduction, into a heat exchanger, on the one hand of said sludge coming from said dynamic mixer and, on the other hand, of said hydrolyzed sludge, this introduction inducing said cooling.

Abstract: Method for dewatering sludge assisted by flocculating reagent, said method comprising an injection of flocculating reagent into the sludge and a step for dewatering said sludge, characterized in that it comprises a preliminary step for mixing (4) said sludge so as to destructure it and reduce its viscosity. Installation for implementing this method.

Abstract: Method and installation of thermal hydrolysis of sludges implementing a group of thermal hydrolysis reactors (71,72,73,74) characterized in that it comprises successions of cycles, each of these successions of cycles being dedicated to one of said thermal hydrolysis reactors, each cycle comprising: a step a) for conveying a batch of non-preheated sludges to be treated into a thermal hydrolysis reactor (71,72,73,74), said step for conveying comprising the continuous passage of the sludges of said batch of sludges into a dynamic mixer (3) into which recovery steam is injected; a step b) for injecting live steam into said thermal hydrolysis reactor (71,72,73,74) containing said batch of sludges so as to increase the temperature and the pressure prevailing in this reactor; a step c) of thermal hydrolysis of the batch of sludges in the thermal hydrolysis reactor; a step d) for emptying the content of the batch of hydrolyzed sludges of said thermal hydrolysis reactor towards a recovery vessel (13), and for concomit

Abstract: Method and plant to implement the continuous thermal hydrolysis of sludge to be treated containing organic matter, the method comprising at least: a. a step for de-structuring said sludge to be treated producing de-structured sludge; b. a step for the thermal hydrolysis of said de-structured sludge within a thermal hydrolysis reactor producing hydrolyzed sludge; c. a step for cooling said hydrolyzed sludge; said step for de-structuring consisting in: introducing said sludge to be treated into a dynamic mixer; heating said sludge coming from said dynamic mixer, this heating being obtained by the introduction, into a heat exchanger, on the one hand of said sludge coming from said dynamic mixer and, on the other hand, of said hydrolyzed sludge, this introduction inducing said cooling.

Abstract: The invention pertains to a method for the continuous thermal hydrolysis of sludge to be treated, containing organic matter, said method comprising the steps of simultaneously carrying out the injection of recovered steam into said sludge and mixing said sludge with said recovered steam by means of a primary dynamic injector-mixer so as to obtain a primary uniform mixture; simultaneously carrying out the injection of fresh steam into said primary uniform mixture and mixing said primary uniform mixture with said fresh steam by means of a secondary dynamic injector-mixer so as to obtain a secondary uniform mixture of sludge; conveying said secondary uniform mixture towards a tube reactor under pressure and prompting an essentially plug-type flow of this secondary uniform mixture into said reactor for a residence time that is sufficient and at a temperature that is sufficient to enable the thermal hydrolysis of the organic matter present in this secondary uniform mixture; producing said recovery steam within mea

Abstract: Method for the continuous thermal hydrolysis of sludges containing organic matter, said method comprising the steps of: simultaneously injecting pressurized steam (100) into said sludges and mixing said sludges with said steam by means of a dynamic mixer-injector (4) so as to obtain a single-phase mixture, conveying said single-phase mixture towards a tube reactor (4) under pressure and bringing about the plug flow of this mixture into said reactor for a retention time that is sufficient and at a temperature that is sufficient to enable the thermal hydrolysis of the organic matter present in said sludges, cooling said single-phase mixture at its exit from said tube reactor to a temperature enabling the subsequent digestion of the hydrolyzed organic matter that it contains, depressurizing said cooled single-phase mixture.