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Method and plant for pre-treatment of source separated wet organic waste

A technology for organic waste and pretreatment, which is applied in the removal of solid waste, solid separation, grain treatment, etc. It can solve the problems of equipment design and production requirements, and achieve the effect of low loss and high biogas production.

Inactive Publication Date: 2012-07-18
阿尔内·亚尔马·克纳普 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand this creates requirements for the design of the equipment

Method used

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  • Method and plant for pre-treatment of source separated wet organic waste
  • Method and plant for pre-treatment of source separated wet organic waste
  • Method and plant for pre-treatment of source separated wet organic waste

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Embodiment Construction

[0019] The wet organic waste in the receiving warehouse 1 is transferred from the receiving warehouse 1 to a shredder device 2 including a screw conveyor. The shredder unit 2 opens the paper bags and bags and the waste is separated into specific particle sizes. The crushing process can be called a drying process. The shredder unit 2 is directly and physically connected above the fine dissolver unit 3 and the shredded waste is forced down by gravity.

[0020] Here a treatment liquid (filtrate from dehydration of the digested breakdown products or thin phase from the digester) is added until a solids content of 6-12% is obtained. The mixture is agitated or dissolved by a rapidly rotating blade mechanism. This device is called a "dissolver".

[0021] When dissolution is complete, the heavy objects are lowered to the bottom of the dissolver vessel 4 and removed from the bottom. The remaining mixture is pumped to the separation unit 5 for plastics.

[0022] In the separation d...

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PUM

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Abstract

Method and plant for pre-treatment of source separated wet organic waste from house holds, institutional house holds etc., comprising shredding of the waste in a course shredder unit (2), allowing the shredded material to fall down to a fine dissolver unit (3) where more heavy objects are removed, adding a process liquid until a desired content of solids of 6 to 12 % is achieved, shredding the mixture with a rapid rotating paddle mechanism, transferring the mixture to a separation unit for plastics, and transportation of the remainder mixture into a plant for production of biogas and decomposing remainder.

Description

technical field [0001] The present invention relates to a method and apparatus for pretreatment of source-separated wet organic waste Background technique [0002] Active separate wet-like organic waste from households, food waste from users of public institutions such as hospitals, hotels, public institutions, and expired food waste from retail trade, as well as materials such as metal, stone Other food types and / or plastic films, etc., must be pre-treated after collection. Such waste material is defined as "wet organic waste". [0003] Waste can be wrapped in or in plastic or paper bags. Waste can also be wrapped in bags or sacks called biopolymers. [0004] The material is transported by refuse collection vehicles or other vehicles suitable for the purpose to the receiving warehouse of the processing plant. [0005] There are many different variants of the above waste types. When the temperature has a change, the waste partly changes during the year. But some local ...

Claims

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Application Information

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IPC IPC(8): B03B9/06B09B3/00B29B17/02
CPCB03B9/06B29B2017/0234B29K2711/14B29B17/02B29K2705/00B02C2018/188B29K2313/00Y02W30/40Y02W30/52Y02W30/62Y02E50/30
Inventor 阿尔内·亚尔马·克纳普盖尔·诺达尔
Owner 阿尔内·亚尔马·克纳普