DISTILLERY WASTE WATER (SPENT WASH) BIOMETHANATION- WASTE TO ENERGY GENERATION.
Journal Title: International Journal of Advanced Research (IJAR) - Year 2019, Vol 7, Issue 3
Abstract
Molasses based distilleries are classified as ?Red Category? because of the large volume of high strength waste water generated by them. Pollution caused by spent wash is one of the most critical environmental issues. Spent wash is one of the recalcitrant waste having extremely high COD (120000 mg/l), BOD (60000 mg/l), SS, inorganic solids, low pH, strong odour and dark brown colour. The problem of increasing amount of spent wash generation and stringent norms has resulted in development of new technologies for its effective and economical disposal. Biomethanation is viewed as a complex ecosystem in which physiologically diverse groups of micro-organisms operate and interact with each other in a symbiotic, synergistic, competitive and antagonistic association. The anaerobic microbial food chain consists of mainly three functionally different groups of microorganisms. Following four pathways are involved in anaerobic digestion of organic wastes 1. Hydrolysis: Hydrolysis break down macro organic materials such as carbohydrates, proteins and lipids, by incising water molecules into lower molecular weight fatty acids, amino acids and sugars. 2. Acidogenesis: Acidogenic bacteria convert fatty acids, amino acids and sugars into organic acids, hydrogen, ammonia and carbon dioxide. 3. Acetogenesis: Acetogenic bacteria convert organic acids, hydrogen and carbon dioxide into acetic acid, hydrogen and carbon dioxide. 4. Methanogenesis: Methanogenic bacteria convert acetic acid, hydrogen and carbon dioxide into methane and carbon dioxide. Readily available CO2 is used as an electron accepter. This reaction is slowest and the rate limiting step of the total anaerobic digestion process. The overall reaction can be represented by the following equation. Organic matter CH4+CO2+NH3+ H2S + H2 Generated methane gas is used as a fuel and cost saving by using methane in boiler or it is possible to make bottling of gas
Authors and Affiliations
Jyoti D. Nikam, Rajendra S. Raut, K. R. Jethani.
Keywords
Related Articles
- EP ID EP535971
- DOI 10.21474/IJAR01/8626
- Views 38
- Downloads 0
CYBER PHYSICAL SYSTEMS FOR HEALTHCARE.
In the modern world, Cyber Physical Systems (CPS) can be considered as a new generation of systems with integrated control, communication and computational capabilities. Just as the Internet has transformed, how people i...
PREVALENCE OF ATHEROSCLEROTIC CRDIOVASCULAR DISEASE MODIFIABLE MAJOR RISK FACTORS: A REVIEW.
Introduction: Globally, Atherosclerotic Cardiovascular disease is responsible for 17.7 million deaths yearly, representing almost one third of deaths globally. Its modifiable risk factors are hypertension, diabetes, over...
ASSESSMENT OF QUALITY OF LIFE AMONG PARENTS OF CHILDREN WITH THALASSEMIA.
Background :Thalassemia is an serious public health issue in India. Thalassemia is an autosomal recessive disorder characterized by partial or no production of alpha or beta globin chains which form part of the structure...
MOLECULAR CHARACTERIZATION OF LACTIC ACID BACTERIA ISOLATED FROM BURNT SWEET CHEESE (CHHENAPODA).
The purpose of this study was to isolate and characterize lactic acid bacteria from fermented burnt sweet cheese (chhenapoda) by PCR based molecular methods for identification of the isolates, which may help to formulate...
MESENTERIC CASTLEMAN\'S DISEASE ACCIDENTAL DISCOVERY OF A CASE OF MESENTERIC CASTLEMAN\'S DISEASE IN THE FORM OF AN ABDOMINAL MASS.
Castelman disease is known as benign angiofollicular node hyperplasia disorder; mostly described in mediastinum. The mesenteric localisation is exceedingly rare, that can be ignored in diagnosis front of an abdominal mas...