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Indian scientists find earthworms can be used to produce compost from 'textile sludge'.



Byline: ANI

Washington, July 17 (ANI): In a new research, scientists at the Guru Jambheshwar Some of the information in this article or section may not be verified by . It should be checked for inaccuracies and modified to cite reliable sources.

Guru Jambheshwar (b.
 University of Science and Technology, in Haryana, India, have determined that earthworms could be used to produce compost from the huge volumes of solid sludge produced by the textiles industry.

The team of scientists included Vinod Garg, Renuka Gupta and Priya Kaushik of Guru Jambheshwar University of Science and Technology.

Sludge from the textiles industry is usually difficult to dispose of To determine the fate of; to exercise the power of control over; to fix the condition, application, employment, etc. of; to direct or assign for a use.

See also: Dispose
. Landfill and incineration incineration

the act of burning to ashes.
 are not viable options given environmental concerns and expense.

As such, the industry in India is under pressure to find a sustainable and cost-effective alternative to disposal of industrial sludge.

Garg and colleagues have now tested vermicomposting of solid textile mill sludge that has been spiked with urine-free cow and horse dung DUNG. Manure. Sometimes it is real estate, and at other times personal property. When collected in a heap, it is personal estate; when spread out on the land, it becomes incorporated in it, and it is then real estate. Vide Manure. , collected from local farms, in a six-month pilot-scale experiment using Eisenia foetida, a particular species of earthworm earthworm, terrestrial, cylindrical segmented worm of the class Oligochaeta. There are 2,200 earthworm species, found all over the world except in arid and arctic regions and ranging in size from 1 in. (2.5 cm) to the 11-ft (330-cm) giant worms of the tropics. .

Eisenia foetida thrives in rotting vegetation, compost, and manure. This species is grown commercially for composting because of their skills at converting organic waste into rich compost.

The team found that the composting process changes the physical and chemical properties of the test mixtures significantly.

The vermicomposts are much darker than the original materials and form compost-like, homogeneous mixture after just 180 days.

The team also found that the earthworms grow well in this manure-enhanced sludge.

They lower the pH of the alkaline sludge, free up mineral ions, including potassium, decrease the ratio of carbon to nitrogen of the material, and boost the amount of nitrogen and phosphorus phosphorus (fŏs`fərəs) [Gr.,=light-bearing], nonmetallic chemical element; symbol P; at. no. 15; at. wt. 30.97376; m.p. 44.1°C;; b.p. about 280°C;; sp. gr. 1.82 at 20°C;; valence −3, +3, or +5.  available for plant growth within a matter of weeks. (ANI)

Copyright 2009 Asian News International The Asian News International (ANI) agency provides multimedia news to China and 50 bureaus in India. It covers virtually all of South Asia since its foundation and presently claims, on its official website, to be the leading South Asia-wide news agency.  (ANI) - All Rights Reserved.

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Publication:Asian News International
Date:Jul 17, 2009
Words:283
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