Earthwise Circular Engineering
offers resilient and circular environmental engineering solutions
What We Do
Earthwise Circular Engineering offers science-led consulting across the full lifecycle of organic waste, water, fertilizer and energy recovery projects. Every engagement is led directly by Dr. Liron Friedman, from initial concept to investment-ready design.
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Using advanced dynamic modeling platforms - including BioWin and custom simulation frameworks - Earthwise Circular Engineering generates models of biological and physicochemical processes to evaluate system performance, diagnose inefficiencies - all before any physical change is made. By simulating targeted interventions, we quantify improvements in process efficiency alongside reductions in energy consumption and carbon footprint, translating complex data into engineering decisions that are both economically sound and aligned with sustainability goals.
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Earthwise Circular Engineering applies microbial kinetics and advanced process modeling to design, simulate, and improve biological treatment systems - including wastewater treatment, anaerobic digestion, nitrogen removal, and membrane-based bioprocesses. Mechanistic modeling resolves process uncertainties before they reach the field - significantly reducing client costs and system start-up time.
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From concept to operational optimization, Earthwise Circular Engineering delivers enhanced anaerobic digestion solutions that convert organic waste into biogas and high-value biofertilizer - turning waste streams into circular assets.
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At Earthwise Circular Engineering, resilient design starts with three core principles: process stability, ease of operation, and minimal footprint. These guide every solution we develop — from adaptable infrastructure built for evolving needs, to resource recovery systems that could close the waste-food-soil loop. The result is high-quality biofertilizer from digestate and organic waste streams, reduced dependence on synthetic or imported inputs, and a measurably lower carbon footprint for every project.
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For companies and research groups developing waste treatment, biogas, biochar, or resource recovery technologies, Earthwise Circular Engineering provides targeted R&D support — designing smarter experimental frameworks, interpreting results, and bridging lab findings to real-world process design. By applying mechanistic modeling and simulation upfront, we identify critical parameters before trials begin, reducing unnecessary testing and accelerating the path from insight to implementation at the lowest cost and in the shortest time.
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Earthwise Circular Engineering offers independent, vendor-neutral evaluation of waste treatment and biogas technologies for investors, operators, and procurement bodies — assessing process performance, scalability, risk, and economic viability before major investment.
Sample Projects
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Led advanced technical R&D across biogas systems and off-grid sanitation for rural and small household applications — with a particular focus on delivering practical, low-footprint solutions where centralized infrastructure is absent. Alongside the technical mandate, provided extensive support to the company's corporate strategy, business development, and planning functions, bridging engineering insight with commercial decision-making.
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Assessed carbon evaluation and certification strategies for seawater reverse osmosis desalination — covering LCA benchmarking, carbon certification frameworks, and the development of a bespoke environmental footprint assessment tool. The engagement bridged technical rigor and regulatory requirements, equipping the client with a clear, defensible pathway to carbon certification.
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Clogging in drip irrigation laterals is a persistent challenge that reduces water efficiency and drives up maintenance costs. For a micro-irrigation company, Earthwise Circular Engineering developed low-cost, environmentally positive chemical processes to restore blocked laterals and prevent recurrence — delivering a practical, field-ready solution that extends system life and reduces environmental footprint.
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An agri-corporation developing manure and agricultural waste treatment technologies needed both a clear technical roadmap and funding to execute it. Earthwise Circular Engineering provided process modeling, technology survey, and technical and economic due diligence to maximize resource recovery potential — then supported the preparation of a government grant application that was awarded $1M.
About the Founder
Dr. Liron Friedman is an environmental engineer and researcher specializing in water, wastewater, sanitation, and biogas technologies. His work utilizes sustainable engineering solutions for water reuse, wastewater treatment, decentralized sanitation systems, renewable energy recovery, and environmental process modeling.
Dr. Friedman earned his Ph.D. in Environmental Engineering from Tel Aviv University, while also conducting doctoral research at Columbia University. His research and work makes use of microbial processes in wastewater reuse systems, advanced nitrogen removal, biofiltration, soil aquifer treatment, and sustainable sanitation technologies. His postdoctoral research at Columbia University, funded by the Gates Foundation, focused on the implementation of decentralized household sanitation technologies into centralized facilities.
Publications
Dr. Friedman’s publications appear in leading peer-reviewed journals including Nature Water and Water Research, spanning microbial process engineering, anaerobic digestion, water reuse, and systems perspectives for circular resource recovery. The common theme in all of his research, publications, and industry consulting is the integration of applicability from a systems perspective.
Throughout his career, Dr. Friedman has combined academic research with applied industrial innovation. He previously served in senior technological and innovation roles in environmental technology companies, including projects for wastewater treatment, anaerobic digestion, decentralized processes, and climate-oriented environmental solutions. Dr. Friedman has also collaborated internationally with academia, industry, government agencies, and NGOs to advance sustainable and circular economy solutions.
Let’s Work Together
The Earthwise Circular Engineering team enjoys working with companies, governments, and other groups seeking new approaches for smart solutions in water, wastewater, biogas and otherwise. Much of the company’s work is done internationally.
Please get in touch with Dr. Liron Friedman via:
