A method for preparing nitrogenous fertilizer and soil conditioner from liquid manure and/or manure. The method comprises the following steps: - separating liquid manure and/or manure into a solid fraction and a liquid fraction, - subjecting the liquid fraction to ammonia stripping, thereby obtaining a liquid fraction with a low nitrogen content and a gas phase containing ammonia, - performing nitrogen recovery from the gas phase into a liquid solution containing acid, thereby obtaining an ammonium salt solution (ammonium nitrogen), - treating the solid fraction with pyrolysis, wherein charcoal, pyrolysis liquid and pyrolysis gas are formed, - charging the ammonium salt solution obtained from the nitrogen recovery step into the charcoal formed in the pyrolysis process, whereby nitrogenous fertilizer and soil conditioner is obtained as the end product.
C10B 53/02 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
Method for treating and/or pretreating liquid manure or biogas plant reject for the elimination of harmful substances, particularly nitrogen, phosphorus, and odor molecules
The invention relates to a method and an apparatus for treating and/or pre-treating liquid manure or biogas plant reject for eliminating harmful substances, particularly nitrogen, phosphorus, and odor molecules. Process tanks (5), which include inlet means (4) for supplying a process tank (5) with a substance to be treated, outlet means for passing a post-treatment matter out of the tank, and air inlet means (2) for supplying the process tank with air required by a biological process, are used for conducting a biological treatment on the matter to be treated. The process tanks (5) are first provided with a microbe population adapted for treating the matter to be treated. The matter to be treated is supplied gradually into the first process tank and then further into a subsequent process tank, such that the microbe population initially provided in the process tanks displaces in a step-by-step manner the original microbe population present in the matter to be treated. The matter, which is substantially free of the original microbes and has been expelled from the final process tank, is returned into the first process tank for diluting the matter to be treated. Downstream of the process tanks is conducted a nitrogen removal treatment by feeding the matter to be treated from the process tank (5) of a stripping tower (22A), in which the pH of a matter to be treated has been raised by means of a biological treatment to a level sufficient from the standpoint of nitrogen removal.
04 - Industrial oils and greases; lubricants; fuels
07 - Machines and machine tools
42 - Scientific, technological and industrial services, research and design
Goods & Services
Industrial oils and greases; lubricants; dust absorbing, wetting and binding compositions; fuels (including motor spirit) and illuminants; candles and wicks for lighting. Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs. Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Animal feeding machines and apparatus; mucking-out machines and apparatus; milking machines and apparatus; drinks dispensing apparatus for animals; forestry machines; horticultural machines; washing machines for milking machines; parts and auxiliary apparatus for the aforesaid machines and automatic feeder mechanisms for animals. Electronic cards; surveillance cameras and devices; holding enclosures with electric fences and electric fence chargers; computerised feeders. Ventilating apparatus and controls.
