Effluent treatment process in molasses-based distillery industries: a review
1Civil Engineering, Periyar Maniammai University, Vallam-613 403, Thanjavur, Tamilnadu, India. sowmeyanr@yahoo.co.uk
Journal of Hazardous Materials
|January 8, 2008
Summary
Inverse anaerobic fluidization in an inverse anaerobic fluidized-bed reactor (IAFBR) effectively treats distillery effluent. This method removes 80-85% of chemical oxygen demand (COD) from contaminated wastewater streams.
Area of Science:
- Environmental Engineering
- Biotechnology
- Chemical Engineering
Background:
- Distillery effluent poses significant environmental challenges due to high chemical oxygen demand (COD) and low pH.
- Conventional treatment methods for distillery wastewater are often insufficient or inefficient.
Purpose of the Study:
- To review and highlight the efficacy of Inverse Anaerobic Fluidization for treating molasses-based distillery effluent.
- To analyze the fluidization phenomena, performance, and operational parameters of the inverse anaerobic fluidized-bed reactor (IAFBR).
Main Methods:
- Review of various aerobic, anaerobic, and physico-chemical treatment processes for distillery effluent.
- Focus on Inverse Anaerobic Fluidization technology utilizing an inverse anaerobic fluidized-bed reactor (IAFBR).
- Analysis of carrier materials and system configurations for IAFBR.
Main Results:
- Inverse Anaerobic Fluidization is identified as a superior treatment method for distillery effluent.
- The IAFBR system demonstrates effective removal of 80-85% of COD.
- Key aspects like fluidization, system stability, and operating parameters are discussed.
Conclusions:
- Inverse Anaerobic Fluidization using IAFBR is a highly effective technology for treating high-strength distillery wastewater.
- The study emphasizes the importance of understanding fluidization dynamics and operational parameters for optimal performance.
- This technology offers a promising solution for managing distillery effluent and reducing environmental pollution.
Related Concept Videos
Production of Alcohol
Continuous fermentation is a key strategy in industrial ethanol production, particularly when efficiency, scalability, and high yields are essential. This approach allows for uninterrupted operation and optimized resource utilization. The primary feedstock, corn starch, undergoes enzymatic hydrolysis facilitated by α-amylase and glucoamylase. These enzymes break down the starch into fermentable sugars such as glucose, which are readily assimilated by fermentative microorganisms.Fermentation...
Biological Treatment of Effluent and Waste Water
Biological wastewater treatment relies on the metabolic activity of microorganisms to remove pollutants from sewage. In modern treatment systems, this process is organized into sequential stages that progressively reduce solid material, dissolved organic matter, and microbial contamination. Each stage plays a distinct role in improving water quality and preparing the effluent for safe discharge or reuse.Primary and Secondary TreatmentPrimary treatment is a physical process that removes large...
Microbes in Beverage Production
Alcoholic beverages such as wine, beer, and spirits are the products of microbial fermentation processes that transform simple sugars into ethanol and a wide array of complex flavor compounds. These transformations rely on the metabolic activities of specific yeasts and bacteria, which are selected and controlled to yield the desired beverage characteristics.Wine Fermentation and MaturationWine production begins with the crushing of grapes to release juice and pulp, forming a must that is...
Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
Downstream Processing
Downstream processing begins once fermentation is complete and involves a series of steps to recover and purify products such as acids, vitamins, antibiotics, or proteins.Cell HarvestingFor example, for intracellular protein-based products, the first step is harvesting the cells. This is typically achieved using centrifugation or filtration to separate the cells from the liquid phase.Cell Disruption for Intracellular ProductsIf the target product is intracellular, the harvested cells must be...
Bioreactor Controls-III
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...


