Titanium-Containing Coagulants in Wastewater Treatment Processes in the Alcohol Industry

• Published in: Processes Vol. 10; no. 3; p. 440
• Main Authors: Kuzin, Evgenii, Averina, Yulia, Kurbatov, Andrei, Kruchinina, Natalia, Boldyrev, Veniamin
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.03.2022
• Subjects: Alcohol; Aluminum; Aluminum sulfate; Capital costs; Chemical oxygen demand; Chloride; Cleaning; Coagulants; Coagulation; Efficiency; Effluents; Equipment costs; Food; Iron; Iron compounds; Laboratories; Ligands; Liquor industry; Methods; Organic compounds; Reagents; Salts; Sedimentation & deposition; Sludge; Titanium; Titanium compounds; Wastewater treatment; Water treatment; United Kingdom > UK; United States > US; China; Russia
• ISSN: 2227-9717; 2227-9717
• DOI: 10.3390/pr10030440

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.