Online Courses (English)
This just in:

State PCS

Daily Updates

Important Facts For Prelims

Biocatalysts Cutting Effluent Discharge

  • 09 Sep 2019
  • 2 min read

Recently, the researchers at the Central Leather Research Institute (CSIR-CLRI), Chennai, developed a new amylase-based biocatalyst.

  • This biocatalyst helps in processing leather in an eco-friendly manner.
  • It drastically reduces the time taken to process the skin at the pre-tanning stage (or the soaking stage). The pre-tanning process generates 60-70% of total pollution during processing.
  • When this biocatalyst is used, the quantum of effluent discharge is considerably reduced as there is a threefold reduction in water usage.
  • Since no chemicals are used in the process, the chemical oxygen demand also drops by about 35%.
  • The biocatalyst is stable at a high temperature (approx. 90° C) and pH, because of which up to 95% of the enzyme can be recovered and reused, after a single process.

Biocatalyst

  • It is an enzyme or a protein that increases or catalyzes the rate of a biochemical reaction.
  • An amylase-based biocatalyst is like a protein that breaks down the starch into simple sugar molecules increasing the rate of a biochemical reaction.

Chemical Oxygen Demand (COD)

  • Chemical oxygen demand (COD) is the amount of oxygen required to oxidize all of the organic carbon completely into CO2 and H2O.
  • It is a method of determining the amount of oxygen that gets consumed by a body as a result of bacterial action in the water.

Council of Scientific and Industrial Research- Central Leather Research Institute (CSIR-CLRI)

  • It was founded in 1948.
  • The purpose behind its establishment was to develop an internal strength in the country to generate, assimilate and innovate technologies for the leather sector.

Source: TH

SMS Alerts
 

Please login or register to view note list

close

Please login or register to list article as bookmarked

close
 

Please login or register to make your note

close

Please login or register to list article as progressed

close

Please login or register to list article as bookmarked

close