Garden Yard Waste Reduction and Treatment Machinery

Yard waste is also known as green or garden waste which consists of all types of vegetation waste matters and is usually biodegradable. Typical types of yard waste include grass clippings, leaves, branches, tree trunks, cut flowers, bushes and shrubs, festive plants, etc.

Pyrolysis is proposed as an alternative management method to composting for urban yard waste recycling. Pyrolysis of yard waste biomass creates both biochar, a carbon-sequestering soil amendment, and bio-oil, a viscous liquid that could be used as a renewable source for non-petroleum-based asphalt binders. 

Processes based on heating an organic substrate in the absence of oxygen (known as pyrolysis) and in the absence of a bulk liquid phase (known as anhydrous pyrolysis) predate recorded history. Pyrolysis has been used to produce primary products (e.g. char, charcoal, coke) and byproducts (e.g. tar, pitch, resin) for millennia. Modern applications have led to a wide variety of process innovations (e.g. flash and fast pyrolysis), reactor configurations, and target products. Pyrolysis is used to produce fuels and other liquid and gas phase organics, as a method to analyze complex organics, and to manage organic wastes (e.g. for scrap tires). However, until recently, its energy demands and byproduct discharges would probably not have placed it high on the list of sustainable technologies. This is changing because of recent interest in pyrolysis conducted to produce soil amendment charcoal (hereafter referred to as biochar) or bio-oils.

Garden Yard Waste Reduction and Treatment General Process: