Automation and Control of a Dissolved Air Flotation Pilot Plant

Author(s)

Fonseca, Rodolpho R. ; Thompson, Jose P., Jr. ; Franco, Ivan C. ; da Silva, Flavio V.

• Document type: Journal article
• Source: IFAC PAPERSONLINE; v. 50, n. 1, p. 6-pg., 2017-01-01.

Abstract

Turbidity is an important process variable on water treatment processes for safeguard health requirements, and dissolved air flotation (DAF) is a physical treatment that allows water turbidity reduction by floating particles dispersed on water. Hence, a DAF pilot plant was assembled and automated using supervisory control and data acquisition (SCADA), open platform of communication protocol (OPC), signal filters and Ethernet to test two possible strategies for water turbidity control. The results indicated that manipulating recycle ratio by needle valve opening has advantages on DAF control. (C) 2017, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 15/05207-8 - Construction, real-time monitoring and advanced control application to dissolved air flotation system to water treatment aiming energy saving
• Grantee: Flávio Vasconcelos da Silva
• Support Opportunities: Regular Research Grants