Nutramulch Group - Waste Types

The facilities will attract many different waste streams, most of which currently go to landfill or have previously been applied directly to land. The suppliers of the waste are mainly made up of the large blue chip waste management companies. The waste comes from an assortment of sources:

Civic amenity sites
Material recycling facilities
Direct from manufacturing (liquids and solids)
Direct from various processing facilities
Biological treatment plants
Other local authority processes
Demolition

The solid waste percentage can be made up of both organic and mineral waste streams. This includes:

All wood waste, including MDF, chipboards and off cuts
Green waste from CA sites
Waste pallets and packaging
Clay slurries
Drilling mud
Various other mineral wastes

The specification of the end product determines what ingredients are suitable for blending into the composting process. This is controlled through the strict adherence to the acceptance criteria. The company will then be able to select the best available ingredients for the end product. The basic rule for non-animal by-products is; if the ingredient can be proven to be beneficial to soil and agriculture then it can be composted. Needing to meet all the acceptance criteria of the company, and the Waste Management Licensing Regulations (click here to view), strictly tests this basic rule. The tests include:

Low levels of potentially toxic elements such as heavy metals.
Levels of physical contaminants such as glass, metal and plastics below set criteria.
pH levels within set criteria.
Advantageous levels of nutrients and/or minerals like N, P, k and calcium etc.
Passing trial period.

Compost Ingredients

Tannery effluent sludges
Biological treatment plant sludges
Clay slurries from any number of sources
Horticulture wastes, vegetables, etc.
Textile wastes
Liquid wastes including food factory interceptor wastes
Fatty acids
Dairy wastes
Yeast wastes
A whole host of other industrial liquids, subject to the analysis
Waste lime, seashells and other inert materials, as long as they can prove a benefit by adding valuable minerals.

Sewage cake and effluents
Most varieties of sludges resulting from the preparation of food
Green waste
Wood wastes, bark and other plant matter
Fullers earth from the filtration of food oil (up to 30% oil)
Latex washings
Shampoo wastes
Sodium sulphates
Leachates from other waste disposal or recycling facilities

Many of the compost mixes can have several different ingredients, all from different sources blended together to achieve the desired product. A detailed list of acceptable waste can be seen in the copy of the license.
Loads containing contamination are rejected to ensure compliance with environmental standards and legislation, and to ensure a consistent product.