This study is an investigation into the environmental impact of a private wastewater network for a large food factory. The environmental impact of improper infrastructure design is often mitigated by the further damaging wastewater removal industry. Outcomes of the problem statement shows trends around operational costs to the volume and COD of the wastewater stream. As well as this, an environmental cost to the environment is displayed. A review of the control philosophy shows a lack of system integration and inadequate system components.
The main objective of the paper was to add intelligence to legacy wastewater infrastructure. This was achieved through the installation of an innovative PLC system with Variable-Frequency-drives, as well as Human-Machine-interfaces to display system states.
The results of the study are shown through employee surveys and primary data collection. Following the installation of the control system, no costs for wastewater removal have occurred. Furthermore, A reduction in solid matter build-up, operational cost, and an improvement in ease of operation are also apparent. These results give a good insight into the potential for automation within the wastewater sector. Showing that mechanical design flaws can be overcome with comparably, less intrusive electrical adaptations.