Abstract
As part of the work, studies of the quality of wastewater from alcohol production were carried out; the main characteristics were determined, such as the charge of dispersed particles and the content of organic compounds and fats. A comparison is made of the effectiveness of titanium salts, traditional aluminum, and iron-containing coagulants. It has been established that titanium salts are much more effective than traditional reagents, but their high cost significantly limits the scope of their application. The possibility of increasing the efficiency of traditional coagulants by adding various titanium salts in an amount of up to 10% of the mass has been proved. It has been established that the addition of titanium compounds to aluminum or iron-containing coagulants makes it possible to increase the cleaning efficiency by an average of 10–20% while a significant reduction in the dose of reagents is possible, which will have a positive effect on the cost of the cleaning process. It was found that the addition of titanium salts to a coagulant based on aluminum sulfate allows not only an increase in the cleaning efficiency but also further intensifies the processes of sedimentation and filtration of coagulation sludge, which will significantly reduce the size of the treatment equipment and reduce capital costs.
Highlights
Accepted: 17 February 2022Population growth necessitates the increase in capacity of the food industry and related industries
Samples of the comprehensive titanium-containing coagulants were obtained by adding hydrolysis products of titanium compounds as well as titanium dioxide in an amount of up to 10 wt% to the conventional reagents based on aluminum and iron salts [23]
It has been proved that the coagulants based on titanium salts are significantly superior in efficiency to the conventional reagents
Summary
Accepted: 17 February 2022Population growth necessitates the increase in capacity of the food industry and related industries. Most of the food industry’s waste can be recycled using the biological methods (biocomposition, fermentation, etc.); the atmospheric emissions have almost no serious consequences, except for the dryers’. Treatment and disposal of the wastewater generated as a result of various food production processes remains an unresolved problem. The processes related to the generation of large volumes of highly contaminated organic wastewater components are typical for all areas of the food industry, including the production of alcohol-containing products (alcohol, beer, and wine), the milk treatment processes, and the manufacturing of the byproducts (butter, cheese) in confectionery enterprises [1,2,3]. The food industry wastewater treatment is a comprehensive and extremely urgent task. The anaerobic digestion methods for highly concentrated effluents have become widespread when the total amount of dissolved and undissolved organic compounds, in Published: 22 February 2022
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