Aquadynamic Consultancy - Case Study 2
The Problem:
A systems failure at a major food products manufacturer resulted in a large quantity of fat entering the trade waste system. The treatment plant was overloaded as a result, with the aeration tank becoming anaerobic and very odorous. The waste water treatment plant was a "draw and fill" type biological plant with three cycles per day, each cycle consisting of aeration, settle and decant phases. As a result of the plant upset settling was not occurring and the final effluent was heavily contaminated with solids.
The Process:
Both the influent and aeration tanks required emptying. Their contents were trucked away for direct soil injection. The aeration tank was refilled a with 50/50 water/effluent mix. Proprietary bacterial cultures (Bichem™) were added and aeration commenced. After 48 hours of constant aeration the system went back into its standard cycles.
Final Outcome:
After 3 days the wastewater system was returning to normal with good settling and a much clearer final effluent. Minimal disturbance to factory output was achieved by re-seeding the system with Bichem™ cultures.
Ongoing Monitoring and Consultancy :
Since this time the plant has continued to function well, with Aquadynamic Consultancy Services monitoring the system on regular basis, and making recommendations and adjustments to plant operation as required.
