Study Description

Observe and document the effectiveness of Green Bull Drain Cleaner and Grease Trap Treatment over a 90-day period

Goals

Remediate and prevent future grease build up, associated odors and catastrophic failure of the sewage collection system caused by occlusion with grease.

Summary of Benefits Achieved

• Reliability: The test wet wells at the San Francisco Mall no longer present the potential for pump, pipe or float failure due to grease build-up. Applying Green Bull on a consistent and regular basis will ensure the effluent will remain in a pumpable state without associated accumulation of grease.
• IAQ: The interior air quality, once a significant issue, has improved dramatically. Odors, indicative of poisonous gases like methane or hydrogen sulfide, are produced by undesirable bacteria that are eliminated by over competition from the beneficial Green Bull organisms.
  
• Environmental: When considering a total lifecycle assessment analysis, the positive impacts of bacterial treatment in grease traps and wet wells significantly outweigh those of alternative options, such as caustic chemical treatment or mechanical removal of grease for disposal. The use of "green" products such as Green Bull is favorable to the environment.
  
• LEED Certification:  Implementation and continued use of the Green Bull biological grease mitigation system in all waste collection areas warrant an award of a point toward LEED certification.
  
• Cost: Although the decision to implement Green Bull's biological system is driven by the need to improve system dependability, environmental concerns and improvement of interior air quality most facilities realize an economic benefit as well. Our analysis demonstrates that San Francisco Mall will realize an annual cost savings of over $3,000. When considering the potential costs of emergency overtime, customer satisfaction and possible health concerns associated with catastrophic failure of a collection system the savings are much greater.

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