NewsWhat Is The Difference Between Sludge And Liquid Waste?

18 August 2019by support

Sludge and slurry are the by-products produced by wastewater, refining, and industrial treatment processes which can contain, depending on the industry, non-hazardous water, biosolids, oils, mud, and other debris.

Both sludge and slurry contain a wet mixture of solid and liquid components. A sludge mixture is thick and soft while a slurry mixture is thin and sloppy.

Sludge or slurry waste can be stored in holding tanks or packaged in intermediate bulk containers, approved small containers or drums.

Effluent pumps are used for pumping effluent or water containing soft solids in suspension for removal and storage or further processing.


What is Sludge?

The term is widely used for a range of materials that contain a mixture of solids and water. The solid components in sludge can consist of:

  • inorganic material such as sand, rocks or other debris as well as the ash components of organic waste material
  • slowly digestible organic material
  • dead microbial cell mass

The particle size and PSD (Particle Size Distribution) of materials derived from different sources can vary from very fine to large some of which can be cohesive (sticking together) while others such as sand are generally non-cohesive.

Biosolids are stabilised or treated sewage sludge material produced during the biological treatment process of sewage.

Biosolids can be a reusable resource for agriculture as it contains significant amounts of organic matter, nutrients, moisture, and trace elements.


What is Slurry?

Slurry is a flowable suspension of small particles suspended in a liquid.

It can be a mixture of liquid waste from some types of industries or a thin watery mixture of fine, insoluble materials such as clay, mud or cement.


What is Liquid Waste?

Liquid waste is any kind of liquid residue that is hazardous to the environment or the health of people.

Usually, this type of waste generally comes from restaurants, laboratories, industrial buildings where tank cleaning operations are carried out, washing machine facilities, and other facilities where waste accumulates.

This includes septic tanks, grease traps, prescribed waste, solvents, resins, paints, oily water, surfactants, clinical or medical waste, and pesticides among others.

The most dangerous is chemical waste such as alcohols, formaldehyde, corrosive substances such as caustics and acids, quarantine waste and contaminated soil.

Dumping of liquid waste by chemical factories can cause serious problems by pollution the environment and damaging the health of people who rely on it.

Liquid waste should be removed by a professional waste disposal company that can dispose of all retail, commercial, industrial, hospitality, and domestic liquid waste.

They can provide services such as cleaning out septic tanks, degreasing oily waters and grease traps and pumping out, transporting, treating, and disposing of all liquid waste and sludge.


How is Sludge and Slurry Waste Handled?

Any type of liquid waste can be safely collected, treated and correctly disposed of at a licensed liquid waste treatment facility where strict EPA guidelines are followed.

A range of innovative sludge harvesting and processing technologies are used by highly trained and experienced personnel as part of a complete waste management solution.

The type of processing solution utilised will depend on the volume and quantity of contaminants present.

Sludge and slurry can be removed by using vacuum tankers for large volumes or safely packaged and transported for disposal, storage, or further processing.

Sludge and Slurry Processing

Clean liquids from sludge and slurry can be released to sewage while contaminated liquids are further treated and processed at a waste treatment plant.

Depending on the composition of the mixture, contents such as fats, grease or oil can be reused in a composting process in organic processing facilities for use in agriculture.

Remaining solids and muds are disposed of at landfills.

Large quantities of contaminants can be eliminated by sludge incineration, thereby bypassing waste to landfills.

Appropriate slurry, sludge, and liquid waste disposal services contribute greatly to keeping the environment as safe and clean as possible.

Whether you are in need of having a septic tank emptied, or you want a blocked sewer de-clogged, it is important that you call in a professional service.

They will be able to properly handle the volume of waste you need, de-water the waste, and then dispose of it at an appropriate site.

If you have a project that requires liquid waste removal using a hydro vacuum service, please call us today on 0419 577 441 or contact us through our website

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