Performance Evaluation of Brewery Waste Water Treatment Plant

摘要

Present research study was conducted for a period of three months to evaluate each and every phase of industry’s waste water treatment processes as a cumulative research. The quantity and quality of brewery waste water fluctuates significantly, depending upon operations like raw material handling, wort preparation, fermentation, filtration, controls in process (CIP) and packaging. The water discharged is found highly organic in nature with high COD consisting of easily biodegradable sugars, soluble starch, ethanol and volatile fatty acids. The paper aims to study the performance evaluation of ETP of M/s Carlesberg India Ltd. a brewing industry located in Paonta Sahib, Himachal Pradesh, India. By feeding influent with controlled input parameters like pH, TSS and COD in UASB reactor, considerable reductions in the pollution loads were achieved. It was also found that improved removal efficiencies and lower electricity consumption are achieved by maintaining mixed liquor suspended solids (MLSS), dissolved oxygen (DO) and controlled oxygenation in the aerobic treatment. The performance evaluation has indicated that 96-98% COD removal, 93-98% TSS removal and 99% BOD removal efficiencies have been achieved. The replacement of existing Activated Sludge Process (ASP) with latest treatment technologies like i.e. Sequential Batch Reactor (SBR) and Membrane Process has been suggested as additional measures in order to achieve the target of less power and space requirement apart from meeting the effluent discharge standards in breweries.