Mamagrande

What Mamagrande does

Mamagrande was an Argentine social enterprise (founded c. 2013, ceased operations end of 2018) headquartered in Rosario, Santa Fe, that deployed Lemnaceae (duckweed) cultivation on municipal sewage lagoons to remediate wastewater and produce a renewable biomass feedstock. The technical stack combined (i) biological nutrient recovery on treatment lagoons in Totoras (Santa Fe), Salta, and Tucumán, (ii) an adapted Argentine grain elevator ('chimango') for mechanical harvest of aquatic biomass, and (iii) a custom 250–1,000-litre fermentation bioreactor developed with INMET (Grupo Bioceres) to convert duckweed sugar into lactic acid, the monomer for PLA bioplastic. Field pilots produced BOD/COD reductions of approximately 56%/63% versus 25%/33% in untreated controls, and provincial water utilities in Salta were independently harvesting several tonnes per week by late 2016.

The business model was structured as B2G service delivery plus a planned global technology-licensing replication ('a thousand MamaGrandes'), funded primarily through municipal co-investment (Totoras 2-year tax-return mechanism), a 2016 national industrial subsidy, and academic partnerships, rather than conventional equity. The primary customer segment was municipal water utilities and provincial public-private water companies serving 10,000–100,000+ inhabitants in Argentina; a secondary intended segment was industrial biocommodity buyers for PLA, animal feed, and soil amendment offtake. No commercial pricing was ever publicly disclosed.

Operations were terminated at end of 2018 because biomass sugar content stalled at 15–20% versus the 25–30% required for industrial economics, INMET did not achieve viable lactic-acid conversion before project closure, and no Argentine regulator had jurisdiction to approve biomass derived from wastewater treatment, preventing any offtake revenue stream from materialising. The five founders (Federico S., Emiliano F., Paula C., Sebas C., Eduardo M.) published a retrospective in September 2019 documenting the failure modes as an open resource.

Name

Mamagrande

Legal name

MamaGrande

Website

https://mamagrande.org

Company type

Private

Founded year

2013

Operating status

Closed

Headcount range

1–10 employees

Short description

Mamagrande was an Argentine social enterprise that cultivated Lemnaceae (duckweed) on municipal sewage lagoons to remediate wastewater and produce biomass for PLA bioplastic feedstock, serving municipal water utilities in Totoras, Salta, and Tucumán before ceasing operations in 2018.

Ownership category

akta.pro rank

Product category

Municipal Wastewater Bioremediation Services

NAICS

Sewage Treatment Facilities (22132), Other Aquaculture (112519)

SIC

Sanitary Services (4950)

akta.pro primary industry

Water Treatment, Filtration & Recirculation (RO, UV, Sterilization) (AFAAAHAH)

akta.pro secondary industries

Seaweed & Algae Aquaculture (incl. microalgae) (AFAEAAAE), Hydroponic & Aeroponic Growing Systems (NFT, DWC, Ebb/Flow, Misting) (AFAAAHAD)

Keywords

• Wastewater bioremediation
• Duckweed cultivation
• Municipal sewage treatment
• Bioplastic feedstock production
• Biomass fermentation

Headquarters

HQ city

Rosario

HQ country

Argentina

HQ region

Latin America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Infrastructure

Revenue model

1. Water treatment services to municipalities: Provided sewage treatment remediation services to municipal water utilities (e.g., Totoras, Salta, Tucumán), helping them meet regulatory water quality standards without expensive chlorination infrastructure.
2. Biomass co-products: Biomass produced from water treatment was intended to be sold as soil improver, fertilizer, animal feed, and as industrial feedstock (lactic acid) for biodegradable bioplastics (PLA). Regulatory barriers prevented biomass sales in Argentina.
3. Technology licensing / replication model: The company planned to create 'a thousand MamaGrandes' worldwide by licensing the technology and methodology to other municipalities and organizations, generating licensing income while scaling global environmental impact.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

MamaGrande operated a bioremediation service that cultivated Lemnaceae (duckweed) on municipal sewage treatment lagoons to absorb excess nutrients and reduce BOD/COD, while producing biomass intended for lactic acid (PLA monomer) feedstock and agricultural co-products. The service was delivered to municipal and provincial water utilities in Argentina through pilot and scale-up projects combining on-site lagoon treatment, mechanical biomass harvesting, and industrial fermentation R&D.

Product overview

MamaGrande was a social enterprise that developed a biotechnology process using lemnaceae (duckweed) plants for wastewater treatment. The process harvested biomass from water treatment lagoons which was intended to be converted into lactic acid for producing PLA (Poly Lactic Acid) biodegradable plastic. The company operated from approximately 2013 until ceasing operations at the end of 2018. No specific named commercial products were offered - the organization focused on research, pilot projects, and developing the technology for scaling.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• BOD reduction: 56.40% (vs. 25.42% without treatment); COD reduction: 62.50% (vs. 33.33% without treatment) in controlled pilot channel trials
• +2 more outcomes

Named customers3 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core, minor and flagship.

• INMET (Instituto de Investigación Agro-Biotecnológica, Grupo Bioceres)coreStrategic or Co-development Partner · 1 January 2015MamaGrande partnered with INMET (a Rosario-based agro-biotechnology research institute of the Bioceres group) for the industrial development of the biomass-to-lactic-acid conversion process. INMET built and operated the 250-litre and 1,000-litre bioreactors in Rosario to optimise fermentation from duckweed biomass. Despite extensive effort, INMET did not achieve results by project closure, citing the complexity of bridging scientific research and industrial application.
• Aguas del Norte (Salta Province) and Sociedad de Aguas del Tucumán (SAT)coreStrategic or Co-development Partner · 1 January 2015MamaGrande partnered with two public-private water utilities in northwest Argentina — Aguas del Norte (Salta) and SAT (Tucumán) — as part of a national industrial subsidy project for technology scale-up. Joint laboratories were installed at treatment plants, and by late 2016 the utilities were successfully managing duckweed cultivation and harvesting several tonnes per week independently.
• International Steering Committee on Duckweed Research and Applications (ISCDRA)minorStrategic or Co-development Partner · 1 January 2015MamaGrande was nominated to and elected to the ISCDRA, the newly formed international steering committee for duckweed research and applications, and was subsequently re-elected for a second term. MamaGrande also contributed to publishing the Duckweed Forum journal through this body.
• Municipalidad de TotorasflagshipStrategic or Co-development Partner · 1 January 2013Totoras municipality (~11,000 inhabitants) partnered with MamaGrande to pilot Lemnaceae-based sewage treatment on their 4-hectare treatment lagoons. The municipality passed a unanimous ordinance opening the project to private co-investors with a 2-year local tax return mechanism to fund the works. The pilot achieved regulatory water quality compliance, validating the technology.

Scale indicators1 record

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• Veolia Water Technologies & Solutions: Global leader in municipal water and wastewater services and technologies. Comparable as the broad incumbent that ultimately serves the same municipal customer base MamaGrande targeted with bioremediation.
• Fluence Corporation: Provider of decentralized and packaged wastewater treatment solutions using MABR and other biological technologies. Comparable as a broad incumbent offering decentralized municipal and industrial wastewater treatment at similar scale to MamaGrande's pilots.
• OriginClear: Provider of advanced water treatment and remediation technologies for industrial and municipal applications. Comparable as a broad incumbent offering overlapping water remediation capabilities to similar municipal customers.
• Sulzer: Swiss industrial engineering company with a wastewater treatment division offering biological process technology and aeration/mixing equipment. Comparable as a broad incumbent supplying process equipment and biological treatment solutions to municipal wastewater operators.
• Suez Water Technologies & Solutions: Major global operator of municipal and industrial water and wastewater treatment infrastructure. Comparable as a broad incumbent serving the same regulated municipal water-utility customers MamaGrande pursued in Argentina.
• PAQUES Environmental Technologies: Dutch company specializing in biological treatment of wastewater and biogas using proprietary reactor designs (e.g., BIOPAQ, AnoxKaldnes). Comparable as a broad incumbent with deep expertise in biological wastewater treatment at industrial scale.

Direct peers

• NatureWorks: World's largest PLA bioplastics producer, converting corn-derived dextrose into Ingeo biopolymer for packaging and fiber applications. Directly comparable as the dominant downstream target market for MamaGrande's intended lactic acid output.
• SCG Chemicals: Thai integrated chemicals producer with a bioplastics portfolio including PLA compounds. Comparable as a regional bioplastics competitor pursuing the same downstream market MamaGrande intended to enter via lactic acid.
• TotalEnergies Corbion: Joint venture producing Luminy PLA bioplastics from sugarcane feedstock. Comparable as an alternative bio-based PLA producer competing for the same downstream applications MamaGrande targeted.

Emerging players

• Organica Water: Provider of biological wastewater treatment plants using plant-rooted hybrid activated sludge systems. Comparable as an emerging player using biological/ecological approaches to municipal wastewater treatment, conceptually adjacent to MamaGrande's Lemnaceae-based remediation.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/mamagrandeorg
• Facebookfacebook.com/mgempsoc
• LinkedInlinkedin.com/company/mamagrande

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mamagrande