In this study, the anaerobic digestion of different types of organic wastes including swept flour from the floor of flourmills, leftover food and vegetable waste is investigated. The performance of an anaerobic digester is dependent on the type and composition of the materials to be digested as well as the environmental factors such as pH and temperature.

Shyam Ranganathan

CHENNAI: Non-availability of sufficient quantities of vegetable waste with high-starch content was the reason for the underutilisation of the Koyambedu

V. Venkatasubramanian

KANCHEEPURAM: The Tiruporur town panchayat has started producing natural manure from biodegradable waste collected from households and establishments in the area.

P. Oppili

CHENNAI: The Experts Committee on Pallikaranai marsh constituted by the Madras High Court held a meeting on Friday.

Have you ever thought that your everyday kitchen waste is damaging the environment? Delhiite Asit Nema has, writes SANGEETA BAROOAH PISHAROTY


High aims: (From left) Ajit K. Gupta, Adviser, MNRE; Deepak Gupta, Secretary, MNRE; and K. Jairaj, Principal Secretary (Energy), at an interactive meet in Bangalore on Thursday.

BANGALORE: Karnataka will unveil a renewable energy policy in a month or two to provide for a focussed effort to boost the renewable energy generation to tide over the power shortage by harnessing green energy.

The highlight of the policy is that it will envisage steps for doubling the renewable energy generation in the State from the present 2,000 MW to 4,000 MW in the next five years.

P. Sudhakar

USEFUL: The Japanese delegation that visited the garbage yard at Ramaiyanpatti near Tirunelveli on Thursday.

TIRUNELVELI: A Japanese team on Thursday visited Tirunelveli Corporation

Courtesy earthworms, hair, weed easily converted to manure in 2003, the government ordered the closure of several hair processing units, which made wigs, in Karnataka because of pollution. Burning of hair resulted in toxic elements, which caused allergies. The problem with human hair is it takes hundreds of years to decompose (see

Delhi takes stringent steps the Delhi High Court has asked the state government to ban the use of plastic bags in all shopping centres and to come up with a notification in this regard. The government in 2005 issued a ban on the use of non-degradable polythene. But it was not effectively implemented. In 2007, following a petition by Tapas, a Delhi-based ngo, the court set up a