The Use of Lignin for Environmental Protection: An Overview of Recent Literature

Abstract

Reducing environmental pollution is a particularly important issue, intensively studied nationally and internationally, as evidenced by the large number of scientific papers published on this topic. Literature studies show that reducing environmental pollution means not only reducing the amount of air / water / soil pollutants but also finding ways to recover waste from industrial activities that will reduce the problems of environmental pollution due to their storage. The materials resulting from the gasification processes of cellulose waste, as well as the materials obtained with the help of cellulose extracted from cellulose waste, were tested in the adsorption processes of some polluting species and the results demonstrated the efficiency of these materials for reducing the environmental pollution. The use of lignin as an adsorbent for the removal of pollutants (organic dyes or metal ions) from industrial wastewater can be considered a viable alternative, which can be a solution to both the problem of lignin recovery and the reduction of pollutant content in industrial wastewater.

Keywords

• lignin
• heavy metals
• dyes
• cellulose waste
• pollution