Abstract
During manufacturing processes, most industrial plants generate wastewater which could become harmful to the environment. Discharge of untreated or improperly treated industrial wastewaters into surface water could, in fact, lead to deterioration of the receiving water body's quality. This paper concerns wastewater treatment solutions used in the soft drink production industry: wastewater treatment plant effectiveness analysis was determined in terms of basic pollution indicators, such as BOD, COD, TSS and variable pH. Initially, the performance of mechanic-biological systems for the treatment of wastewater from a specific beverages production process was studied in different periods, due to wastewater flow fluctuation. The study then showed the positive effects on treatment of wastewater augmentation by methanol, nitrogen and phosphorus salts dosed into it during the treatment process. Results confirm that after implemented modification (methanol, nitrogen and phosphorus additions) pollution removal occurs mostly with higher efficiency.
Highlights
The beverage production sector belongs to the agro-food industry
This paper concerns wastewater treatment solutions used in the soft drink production industry: wastewater treatment plant effectiveness analysis was determined in terms of basic pollution indicators, such as BOD, chemical oxygen demand (COD), Total Suspended Solid (TSS) and variable pH
This paper presents an example of activated sludgebased industrial wastewater treatment plants (IWWTPs)
Summary
The beverage production sector belongs to the agro-food industry. This industry is currently under consumer pressure, implementing significant changes as the result of increasing public interest in the so-called "healthy lifestyle". Significant increase in sale volumes was recently observed in the so-called “functional waters” segment, that is, products based on ordinary spring water enriched with vitamins, minerals and/or flavoring extracts [1]. Nectars and fruit drinks account for about one third of the beverage market in Poland. Their sales increased by 11.3% and 6.4%, respectively, over the previous year, while customer expenditure increased by 8.4% and 1.7%, respectively [1]. The observed increase in production is associated with higher industrial water consumption, implying higher volumes of waste water is being discharged into the environment [2]
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