RU2013111794A

RU2013111794A - CATALYTIC REACTOR FOR WASTE WATER SEDIMENTS AND METHOD FOR THEIR WASTE PROCESSING (OPTIONS)

Info

Publication number: RU2013111794A
Application number: RU2013111794/05A
Authority: RU
Inventors: Александр Дмитриевич Симонов; Николай Алексеевич Языков; Валентин Николаевич Пармон; Юрий Владимирович Дубинин; Вадим Анатольевич Яковлев; Игорь Анатольевич Федоров
Priority date: 2013-03-15
Filing date: 2013-03-15
Publication date: 2014-09-20
Also published as: RU2536510C2

Abstract

1. Каталитический реактор для переработки осадков сточных вод, состоящий из вертикального корпуса с расширением в верхней части, с патрубком подачи осадка сточных вод, расположенном на уровне соединения нижней и верхней расширенной части корпуса реактора, в нижней части корпус снабжен патрубком выгрузки катализатора и инертного материала и патрубками подачи воздуха и топлива, в верхней части корпус снабжен патрубком отвода дымовых газов и патрубком загрузки катализатора и инертного материала, внутри корпуса между патрубками подачи воздуха и топлива размещена газораспределительная решетка, выше решетки последовательно размещены организующая насадка и теплообменные поверхности, отличающийсятем, что на газораспределительной решетке расположены частицы дисперсного инертного материала, а организующая насадка содержит катализатор окисления.2. Способ переработки осадков сточных вод, включающий механическое обезвоживание осадка, термообработку концентрата при температуре 500-600°С в организованном неподвижной насадкой псевдоожиженном слое дисперсных частиц, охлаждение твердых продуктов переработки, отделение твердых продуктов от дымовых газов, обработку продукта водным раствором неорганической кислоты и использование суспензии для очистки исходной сточной воды, отличающийся тем, что термообработку осадка проводят в каталитическом реакторе по п.1 в псевдоожиженном слое частиц инертного материала.3. Способ переработки осадков сточных вод при температуре 700-750°С в избытке воздуха выше или равном а>1,2, включающий механическое обезвоживание осадка, термообработку концентрата в организованном неподвижн1. A catalytic reactor for the treatment of sewage sludge, consisting of a vertical casing with expansion in the upper part, with a sewage sludge supply pipe located at the level of the connection of the lower and upper expanded parts of the reactor casing, in the lower part the casing is equipped with a pipe for unloading the catalyst and inert material and air and fuel supply pipes, in the upper part the housing is equipped with a flue gas exhaust pipe and a catalyst and inert material loading pipe, inside the housing between the air supply pipes of spirit and fuel, a gas distribution lattice is placed, an organizing nozzle and heat exchange surfaces are sequentially placed above the lattice, characterized in that particles of dispersed inert material are located on the gas distribution lattice, and the organizing nozzle contains an oxidation catalyst. 2. A method of processing sewage sludge, including mechanical dewatering of the sludge, heat treatment of the concentrate at a temperature of 500-600 ° C in a fluidized bed of dispersed particles organized by a fixed nozzle, cooling of solid processing products, separation of solid products from flue gases, processing of the product with an aqueous solution of inorganic acid and using a suspension for the treatment of feed wastewater, characterized in that the heat treatment of the sludge is carried out in the catalytic reactor according to claim 1 in a fluidized bed its inert material. 3. A method of processing sewage sludge at a temperature of 700-750 ° C in excess of air above or equal to a> 1.2, including mechanical dewatering of sludge, heat treatment of the concentrate in an organized still

Claims

1. A catalytic reactor for the treatment of sewage sludge, consisting of a vertical casing with expansion in the upper part, with a sewage sludge supply pipe located at the level of the connection of the lower and upper expanded parts of the reactor casing, in the lower part the casing is equipped with a pipe for unloading the catalyst and inert material and air and fuel supply pipes, in the upper part the housing is equipped with a flue gas exhaust pipe and a catalyst and inert material loading pipe, inside the housing between the air supply pipes of gas and fuel there is a gas distribution grill; above the lattice, an organizing nozzle and heat-exchange surfaces are sequentially placed, characterized by the fact that particles of dispersed inert material are located on the gas distribution grid, and the organizing nozzle contains an oxidation catalyst.

2. A method for processing sewage sludge, including mechanical dewatering of the sludge, heat treatment of the concentrate at a temperature of 500-600 ° C in a fluidized bed of dispersed particles organized by a fixed nozzle, cooling of solid processing products, separation of solid products from flue gases, processing of the product with an aqueous solution of inorganic acid and the use of a suspension for the treatment of feed wastewater, characterized in that the heat treatment of the sludge is carried out in the catalytic reactor according to claim 1 in a fluidized bed particles of an inert material.

3. A method of processing sewage sludge at a temperature of 700-750 ° C in excess of air above or equal to a> 1.2, including mechanical dewatering of the sludge, heat treatment of the concentrate in a fluidized bed of dispersed particles organized by a fixed nozzle, cooling of solid processing products, separation of solid products from flue gases, and the cooled solid processing products are sent for storage or disposal, which differs the fact that the heat treatment is carried out in the catalytic reactor according to claim 1 in a fluidized bed of particles of inert material.