Abstrait

Anaerobic Treatment of Pulp and Paper Mill Wastewater Using Hybrid Upflow Anaerobic Sludge Blanket Reactor (HUASBR)

Hemalatha.D, Sanchitha.S, Keerthinarayana.S

The Pulp and Paper industry is one of India’s oldest and core Industrial sector which produces large amount of pollutant loads, discharged into environment. These effluents cause considerable environmental impact since it contains biodegradable organic material and compounds toxic to living organisms. It will become a threat to living organisms if the effluent is not treated before discharge. The present study is about the treatment of Pulp and Paper mill wastewater using Hybrid Up flow Anaerobic Sludge Blanket (HUASB) Reactor. The main objective of this study is to assess the stability of Hybrid Up flow Anaerobic Sludge Blanket (HUASB) Reactor for various parameters like pH, Total suspended solids and COD removal. Here, a specific packing media of Polypropylene polyhedral spherical balls were used in the reactor. The typical physiochemical and biological characteristics of hardwood/Bagasse wastewater were studied. The characteristics of seed sludge were also analysed. The maximum effluent COD removal efficiency of 87% achieved when the reactor was operated at an OLR of 0.71KgCOD/m3d. Finally, the biofilm growth on Polypropylene polyhedral spherical balls was also measured