Gross profit margin is the gross profit $ expressed as a % of the revenue. So, if gross profit is $10,000 and the revenue was $30,000 then the gross profit margin is ... 10,000 divided by 30,000 = 33.33%. This is a measure of the firm's profitability being obtained from it's core activities. Net profit is the $ left over from the gross profit after deducting the overheads. Net profit margin is the net profit $ expressed as a % of the revenue. So, if net profit is $5,000 and the revenue was $30,000 then the net profit margin is ... 5,000 divided by 30,000 = 16.66%. This is a measure of the firm's overall profitability, performance and sustainability.
Anaerobic digestion is a process through which bacteria break down organic matterâsuch as manureâwithout oxygen. As the bacteria âwork,â they generate biogas. The biogas that is generated is made mostly of methane, the primary component of natural gas. The non-methane components of the biogas are removed so the methane can be used as an energy source.
Production of Biogas by Anaerobic Digestion. Anaerobic digestion is a natural process in which bacteria convert organic materials into biogas. It occurs in marshes and wetlands, and in the digestive tract of ruminants. The bacteria are also. active in landfills where they are the principal process degrading landfilled food wastes and other. biomass.