Meat processing is a water intensive operation. For every ton of meat produced, up to 6250 liters of wastewater containing high levels of total suspended solids and organics is generated.
Wastewater treatment poses a significant impact on total cost of operations.
Meat processors are looking for innovative ways to improve their wastewater treatment performance and lower their overall operating costs while increasing their personnel efficiency.
An Australian small goods meat production facility processes on average 38 tons of ham per day for local market consumption and had an opportunity to increase production due to increased demand. To successfully capitalise on this opportunity, they had to first address the issues with their wastewater treatment.
Their DAF had become a production bottleneck due to wastewater flow rates continually reaching or exceeding their permitted discharge limits.
This, combined with inexperienced operators conducting manual processes that resulted in mis- dosing, and mismanaging stock supply, meant that the WWTP operation was facing significant internal pressure to improve operations.
The processors in this plant needed effective and efficient ways to optimise and automate wastewater treatment operations. So, they consulted Waterwerx on the use of its STREAMWISE Technology for DAF to help the plant:
Soon after the start-up of the STREAMWISE unit, Waterwerx’s remote experts discovered high TSS spikes in the influent water to the DAF. Working with the local operators and Environmental Manager the source of the TSS spikes was traced to sludge tank decanting practices resulting in sludge being drained back into the DAF each time the decanting operation was performed, resulting in significant plant upsets. Better decanting practices were implemented eliminating the high TSS spikes, lowering polymer usage and reducing average effluent TSS.
In Table 2, we see the effect of STREAMWISE’s proprietary control vs manual control on the sites total cost of operation. STREAMWISE control provided a significant reduction in chemical costs of 45% even while production increased by 15%. The STREAMWISE system will reduce overall costs by 24% and save this meat processor an estimated $152,000 per year.