Which of the following industry produce lime waste?

Which of the following industry produce lime waste?

Lime mud is a waste generated in the production of cellulose by the kraft mill process. It is mainly composed of CaCO3, a small amount of magnesium carbonate and other trace minerals.

What is carbide sludge?

Carbide sludge is the by-product of reaction between calcium carbide and water in the production of acetylene gas for welding purposes. This by-product is discarded as waste due to high content of impurities as a result of the reactants and reaction processes.

What is carbide lime used for?

Recycling the carbide lime has resulted in its is use for agricultural purposes, sewage and water treatments and in several industrial processes [1], [2], [5], [6], [7], thus reducing waste disposal concerns and degraded areas by limestone exploitation (used as a raw material for calcium oxide and hydroxide production) …

How do you dispose of hydrated limes?

Lime (material)

  1. Pelletized lime can be disposed of with household trash.
  2. Other concentrated forms, such as hydrated lime, can be hazardous and should be brought to the CSWD Environmental Depot by appointment only.

What are examples of industrial waste?

Types of Industrial Waste

  • Electric power generation.
  • The use of agricultural chemicals and inorganic chemicals.
  • Iron and steel manufacturing.
  • Water treatment.
  • Plastics and resins manufacturing.
  • Many of the other manufacturing processes outlined above.

What is tungsten sludge?

Tungsten carbide sludge, is also known as swarf, powder, or dust. It is a byproduct from the grinding, cutting, shaping, and forming of the manufacturing of tungsten carbide tooling, inserts and wear parts and other carbide items. A basic rule of thumb with sludge – the heavier it is, the more tungsten it contains.

How is tungsten recycled?

By far the simplest and most economical approach of the direct-reuse recycling is to regrind or rebuild the individual pieces of scrap to produce a usable component (tool). Rebuilding is generally limited to resurfacing or rebuilding wear parts with “tungsten electrodes”.

What is carbide lime slurry?

Carbide Lime is a Calcium Hydroxide product, produced as a result from the combination of water and Calcium Carbide in an Acetylene Generator. The Lime Slurry is then pumped into a storage tank or retention pond where it is held until it is shipped out to water treatment plants or construction sites.

What is carbide lime sludge?

Carbide lime or lime sludge is a by-product of acetylene production. through the hydrolysis of calcium carbide (Eq. ( 1)) [1,2]. The waste is. generated as an aqueous slurry and is composed essentially by calcium.

Can I pour Limewater down the sink?

Flush liquid limewater solutions down a sink with lots of water. Turn on the tap to high pressure, then pour the limewater directly down the drain. Leave the water running for 1-2 minutes to ensure all the solution gets flushed down through the pipes.

What happens if you swallow Limewater?

Causes respiratory tract irritation. May be harmful if absorbed through skin. Causes skin irritation. May be harmful if swallowed.

What are facts about acetylene?

Acetylene is a hydrocarbon, belonging to the alkyne group. It is the simplest type of alkyne, as it has only two hydrogen atoms and two carbon atoms. Acetylene is an unsaturated organic compound because its four atoms are triple bonded through a covalent bond.It was discovered in 1836 by Edmund Davy.The chemical symbol is C 2 H 2.. 80% of all acetylene produced yearly in the United States is

What are the uses of acetylene?

Acetylene is used in the glass industry.

  • It is used in brazing.
  • Used in the manufacturing of a synthetic rubber.
  • Used as an additive to preserve food items.
  • Used to precipitate metals.
  • Used in soldering metals.
  • Used in the manufacturing of an acetic acid.
  • Used in carburization of steel.
  • It is also used as a feedstock in the manufacturing of acrylonitrile.
  • How is Acetylene produced?

    General utilities required for production of 1 Kg acetylene Gas

  • 3 Kg Calcium Carbide
  • 3.5 KWH Electricity
  • 20 Liters of Water
  • 10 Gms Calcium Chloride
  • Can acetylene be used as a fuel?

    As acetylene is highly flammable, it can be used as alternative fuel to run a steam turbine. In which we can generate electricity by coupling the steam turbine and generator to generate electricity.