Best In Class Effluent Quality

Marsh Industries proudly presents the Marsh Nutra-Lite, an advanced Sequential Batch Reactor (SBR) Sewage Treatment Plant designed to significantly enhance effluent quality for off-mains wastewater systems.

The Nutra-Lite is available in capacities catering to sites for up to 50 people. With state-of-the-art technology and rigorously tested, the Nutra-Lite sets a new standard for sustainable domestic sewage treatment.

The Marsh Nutra-Lite can be supplied as a complete system, combined with the Marsh Phos-Lite for intensive phosphate removal. 

SBR technology provides superior effluent discharge

The Nutra-Lite sewage treatment plant harnesses SBR technology, achieving an impressive 84% biological reduction in nitrates. Unlike traditional methods, no chemicals or carbon are used – just biological processes.

The Nutra-Lite boasts the highest overall discharge quality of any plant available today. Additionally, a unique self-cleaning, self-sealing sediment reduction valve ensures total control over suspended solids. No mechanical parts provide reliability and efficiency.

Nutra-Lite not only excels in phosphate and nitrate removal but also significantly reduces other key effluent constituents:

COD: 95.8% – 33mg/l

BOD: 98.7% – 4 mg/l

TNb: 83.9% – 11.1mg/l

NH4n: 99.1% – 0.5mg/l

Ptot: 34.3% – 6mg/l

SS: 97.1% – 11mg/l

Features and Benefits

SBR technology for superior nitrate reduction

The Nutra-Lite harnesses SBR technology, achieving an impressive 84% biological reduction in nitrates. Unlike traditional methods, no chemicals or carbon are used – just biological processes.

Remote configuration and adaptability

Unique to Marsh Industries, the Nutra-Lite sewage treatment plant can be adapted to seasonal changes in biological treatment, ensuring optimal year-round performance. Remote configuration allows adjustments based on ongoing nitrate reduction research.

Secure telemetry and alarm monitoring

All Nutra-Lite sewage treatment plants feature bi-directional communication for maintenance and monitoring. Telemetry options include mobile connectivity or homeowner Wi-Fi/internet.

Efficiency and cost savings

A single compressor minimises electrical power consumption without compromising performance. Economy mode further reduces running costs during process changeovers.

Material strength and fire safety

Marsh Industries’ GRP material successfully meets the requirements of EN ISO 11925-2:2010 standards and is tested for direct flame impingement. All units come with a 25-year structural guarantee.

Certified performance

Rigorously tested at the world-leading notified test centre, PIA GmbH, in Aachen, Germany, the Nutra-Lite is certified to BS EN 12566-3 after 50 weeks of continuous testing. This system holds accreditation to EN12566-3 Annex B for systems of up to 50 Population Equivalent (PE) and complies with the UK Forward for BSEN12566-3, demonstrating its reliability and effectiveness.

Performance metrics and environmental implications

The Marsh Industries SBR (Sequencing Batch Reactor) Nutra-Lite & Phos-Lite domestic sewage treatment plant when combined delivers exceptional performance, achieving outstanding results in the final discharge as verified by the PIA Test Centre in Aachen, Germany.

Here is a detailed breakdown of its performance metrics and their environmental implications:

Results: Assessed to EN12566-3 (UK Forward on Influent Strength & Concentration)

1. Biological Oxygen Demand (BOD): 4 mg/l

• Significance: A low BOD indicates the plant effectively removes organic matter, minimising oxygen depletion in receiving waterways.
• Environmental Impact: This protects aquatic ecosystems by ensuring sufficient dissolved oxygen for fish and invertebrates.
• Standard: Far below UK and EU regulatory limits 

2. Total Suspended Solids (TSS): 11mg/l

• Significance: A low level of suspended solids ensures high water clarity and reduces sedimentation risks
• Environmental impact: Protects aquatic habitats, particularly fish spawning ground, from having elevated levels of sediment.
• Standard: Excellent performance compared to general discharge limits (25-30 mg/l)

3. Ammonia (NH4-N): 0.5mg/l

• Significance: Exceptionally low ammonia levels highlight efficient nitrification, critical for protecting aquatic organisms, as ammonia is toxic at higher concentrations.
• Environmental Impact:  Helps maintain water quality and prevents acute toxicity to fish.
• Standard: Outstanding compared to most regulations, which often set limits at 5 mg/l or higher.

In addition the unit also delivers impressive nitrate reduction: 

Total Nitrate (NO3-N): 11.1mg/l

• Significance: This controlled nitrate level reflects effective nitrogen management, through nitrate remains present as a byproduct of ammonia removal.
• Environmental Impact: Helps limit nutrient loading, through further reductions which will be desirable in nitrate-sensitive areas.
• Standard: Meets UK and EU requirements which are typically set around 10-15mg/l

Ecosystem Protection

• The Nutra-Lite's exceptional results for BOD, ammonia and phosphate make it particularly well suited for deployment in environmentally sensitive areas such as rivers and streams.

Future Proof

• In an ever more environmentally conscious world, the Nutra-Lite SBR provides the client with the ability to demonstrate adoption of the most advanced technology.  Far exceeding existing regulatory standards.

Why these results are outstanding

• Low BOD and Ammonia: Demonstrating efficient organic matter breakdown and nitrogen conversion.
• Low Suspended Solids: Protects water clarity and aquatic habitats.
• Verified by PIA: Testing at the Prüfinstitut für Abwassertechnik (PIA) ensures credible, rigorous and internationally recognised results.
• Compliance: The results exceed typical UK and EU discharge standards, making the Nutra-Lite plant a robust choice for meeting  stringent environmental regulations.

Conclusion

The Marsh SBR Nutra-Lite is an innovative sewage treatment plant, providing exceptional discharge quality with industry-leading results.  It's performance makes it the most dependable and environmentally friendly solution for protecting waterways and other sensitive sites.