Reciprocating the gift


At HNL, pollution control is an integral part of production. In tune with National priorities and social obligations, HNL has adopted a policy of reciprocating the gifts of nature.

Captive forest

The effluent treatment system initially installed at a cost of Rs.46 million has been upgraded in 1994 with an additional investment of Rs.52 million. Annually the company spends Rs.25 million for effluent treatment. In-plant control measures have substantially lowered fresh water consumption. Generation of waste water is minimal and in keeping with the national standards. HNL is the only mill in the country, which, in addition to meeting all parameters for effluent treatment, decolourises the effluent before discharge. HNL is also the first to substitute 90% of chlorine in bleaching with environment friendly Hydrogen peroxide thereby reducing toxic discharges.

 

image003.jpg (506 bytes) HNL has been successful in bringing down solid waste to near zero level.

image003.jpg (506 bytes)  Entire fly ash has been utilised by an auxiliary unit for producing Portland Pozzolana cement.       

image003.jpg (506 bytes)  Bottom ash is used for making construction bricks.

image003.jpg (506 bytes)  Lime sludge is reburned to produce the lime required in the production process.

image003.jpg (506 bytes)  Chipper waste, DIP sludge and effluent sludge are utilised as secondary fuel in FBC boilers.

 

HNL has Electro Static Precipitators (ESP) and Dust Collectors to control atmospheric pollution and to preserve the lush green vegetation of over 30,000 trees around the plant. This is no small achievement, for the United Nations Environmental Programme (UNEP) has selected HNL as the model paper mill in the Asia Pacific Region under its NIEM programme. Besides, HNL has bagged the Kerala State Pollution Control awards in 1997-98, 1999-2000 and 2002 for the best pollution control measures and processes adopted in the mill.
A survey of the Indian Pulp and Paper Industry, the first-ever "Green Rating" exercise in the country by the Centre for Science and Environment (CSE) and supported by the Union Ministry of Environment and Forest and the United Nations Development Programme (UNDP) has rated HNL among the first five environment friendly paper mills.