HNL has a fully equipped effluent treatment plant. The quality of effluent discharge meets with all the norms specified in statutory regulations / guidelines.

The Effluent Treatment System at HNL was initially installed at a cost of Rs.46 million. It was 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.

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