Technology for N&P recovery as green compost starting from green waste with "IMOG" composting windrow process including membrane and forced aeration (ID:279)

Input material
green waste (from parks, public domain, gardens,..)
Output product
green compost
Processing capacity
12.000 ton green compost/y
Technology Status
Available on the market
Keywords
green waste
composting
hygienisation
recuperation NPK and C
Technology description

Green composting refers to the biological aerobic breakdown and stabilisation of organic matter, i.c. green waste, using a variety of microorganisms. Moreover it is a controlled (= measuring temperature and moist, turning, forced aeration,  and/or  increasing  water  content) transformation proces  in, an open or closed environment, that  mimics the natural conversion process from organic matter to humus in the soil, humification. At the end of the maturation phase about the compost represents about ½ of the weight of the treated inputs. The temperatures achieved by the microbial activity allow for the hygienisation of the end product. Composting/compost in Flanders is among the most highly monitored and appreciated in the EU. Allowed input for green composting is selectively retrieved green waste (compostable, organic waste from gardens, parks and lawns). At IMOG the accepted green waste follows undergoes a 4-phase composting: (a) reduce (chip) and mix the green waste, (b) 5 weeks : set up compost heap on windrow with membrane and forced aeration, (c) 3 weeks: converting windrow to a higher pile (‘table’), (d) 3 weeks: conversion from table to table.

Technological elements of the recuperation process at IMOG site are:

  • chipper (Doppstadt AK560) and crane (Komatsu PW180)
  • wheel loader (Case 1021F) and turning machine (JENZ MU200)
  • windrow machine (PWM13) and membranes
  • sieving machine (with 2 sieves : 015mm; 15-40mm)

Last stage is the sifting of the compost (0-15mm) with additional short storage (ad hoc maturation). Percolate water is collected and purified and afterwards partly reused.

Linked Product: Green compost from green waste by "IMOG" process, ID: 280

Basic information

Vendor:
Country:
Belgium
Technology main category:
Biological nutrient recovery: composting, anaerobic digestion, microalgae technology
Technology subcategory:
Composting

Languages

Summary:

Technologie zur N & P-Rückgewinnung als grüner Kompost ausgehend von Grünabfällen mit “IMOG“ -Kompostierungsmieten einschließlich Membran- und Zwangsbelüftung

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