A separation process by membrane retaining particles from 1 to 10 nanometers in size and used to produce extremely pure drinking water.
Net profit or income
A positive balance on the income statement.
Net profit or income per share
Consolidated net income divided by the number of shares constituting the company’s capital.
NHIW (non hazardous industrial waste) :
Waste resulting from an industrial or commercial activity but which is comparable to domestic waste and hazardous domestic waste. For example, cardboard, wood, packaging material, etc.
Nitrification
The first phase of the biological elimination of nitrogen, performed in sewage plants in particular. Nitrification involves the treatment of wastewater designed to transform ammonium (NH4 ) into nitrate (NO3-) by oxidation by bacteria.
Nominal value
the nominal value of a share is the share of the company’s capital represented by the share. The company’s capital is the product of the nominal value of the share multiplied by the number of shares.