The plant already had an existing screen, oil and grease trap and heavily overloaded MBBR. To alleviate the plant loading, a DAF and a BIOPAQ® IC were added. UF and RO membranes, UV as well as chlorine dosing to bring the water up to better than potable water standards for non direct food contact reuse in the factory were also added. The UF and RO were designed and built by Aquatec Maxcon.
The primary and secondary part of the plant was started up in July 2009. The BIOPAQ® IC reactor removes around 85% of the soluble COD. The plant has extensive odour treatment with a system for the high hydrogen sulphide off gas and a carbon filter for the low sulphide/high VOC off gas streams.
The SCADA system is designed for the plant to run in automatic mode.
The entire plant was designed by Aquatec Maxcon, installed by Aquatec Services, and the electrical works for the control system were undertaken by MPA Engineering. Together as the Aquatec Maxcon Group, the complete vertically integrated team delivered all project requirements from internal resources.
The project was performed on a so-called cost plus basis with an agreed margin on all works. The client and consultant, GHD, were of the opinion that Aquatec Maxcon has the most suitable background, experience/references and in-house expertise to perform this type of project. This delivery method provided the client with ongoing input in the design and cost control of the project.