Marine vessels demand reliable, efficient sewage treatment solutions to stay compliant, reduce operating costs, and maintain a healthy onboard environment. Enter GNC Marine STP Solupak — a powerful biological sewage treatment powder designed to optimize waste management systems and outperform traditional chemical cleaners.
STP Solupak is a bioactive powder additive formulated specifically for marine sewage systems (Type II and Type III MSDs), marine sanitation devices, and holding tanks. It employs natural microbial cultures to break down organic wastes — including feces, paper, fats, oils, and detergents — reducing Biochemical Oxygen Demand (BOD) while dramatically improving system efficiency.
This eco-friendly solution helps vessels:
Minimize odors and foul smells
Reduce sludge accumulation
Improve biological activity
Shorten wastewater retention times
Maintain peak performance even under high organic load conditions
All without relying on harsh chemical cleaners.
STP Solupak’s blend of active microbial cultures aggressively digests complex organic material — converting waste into simpler, manageable compounds that naturally assimilate within treatment systems.
Marine sanitation systems often emit unpleasant odors when overloaded or inactive. STP Solupak’s bacteria target odor-causing compounds at the source, creating a more comfortable environment for crew and passengers.
Chemical cleaners and unexpected toxic influent can disrupt biological balance. STP Solupak helps revitalize and stabilize biological activity to prevent system upset and ensure consistent performance.
Unlike traditional chemical treatments, STP Solupak:
Is biodegradable
Works with naturally occurring bacteria
Reduces maintenance labor and expense
Supports environmental compliance (e.g., MARPOL Annex IV) without damaging marine ecosystems
Gamazyme 700FN is another leading biological sewage treatment powder widely used on ships and offshore installations. Like STP Solupak, it harnesses bacterial strains to degrade organic waste, eliminate odors, and enhance biological activity in sewage systems.
Both STP Solupak and Gamazyme 700FN are biological sewage treatment powders designed for marine applications. While both products enhance biological activity and odor control, STP Solupak offers easy-to-use soluble sachets and a nutrient-balanced formulation that supports long-term system stability with minimal handling.
For optimal performance, STP Solupak can be dosed directly into sewage holding tanks or via MSD influent points during start-ups, maintenance cycles, or following a toxic shock event. The soluble sachets dissolve easily, distributing active bacteria throughout the system to accelerate organic matter breakdown and improve biological stability.
Shipping and marine operations are subject to strict environmental regulations aimed at protecting aquatic ecosystems. Biological treatments like STP Solupak not only meet regulatory requirements but also support greener ship operations, lower maintenance costs, and enhanced onboard safety. They outperform traditional chemical cleaners by preserving microbial balance and preventing polymer disruption in sewage treatment plants.
GNC Marine STP Solupak is a proven, eco-friendly solution for improving marine sewage treatment efficiency. By enhancing biological activity, reducing odors, and minimizing sludge, it helps vessels maintain compliance and operational reliability.
Discover STP Solupak from GNC Marine — a smarter, cleaner way to manage marine sewage systems.
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Explore GNC Marine’s full range here.
Q: What is STP Solupak used for?
A: STP Solupak is used to improve biological activity in marine sewage treatment plants by breaking down organic waste, reducing sludge, and eliminating odors.
Q: Is STP Solupak safe for marine environments?
A: Yes, STP Solupak is biodegradable, chemical-free, and designed to support environmentally responsible marine waste management.
Q: How does STP Solupak compare to Gamazyme 700FN?
A: Both are biological sewage treatment powders, but STP Solupak offers easy-to-use soluble sachets and a nutrient-balanced formula designed for long-term system stability.
Q: Can STP Solupak help after a sewage system upset?
A: Yes, STP Solupak is effective for re-seeding biological activity after toxic shock, overload, or system downtime.
In the marine sector, particularly within sewage treatment and grey water systems, maintaining an optimal environment for microbial activity is crucial for the efficient breakdown of waste.
In the marine sector, particularly within sewage treatment and grey water systems, maintaining an optimal environment for microbial activity is crucial for the efficient breakdown of waste.
