SATPC0037502 Tab 04 4 SOW..pdf
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This is a Statement of Work (SOW) from NASA's Marshall Space Flight Center for research on mitigating and preventing biofouling and biofilm growth in wastewater processing assemblies, specifically for the International Space Station's Water Recovery System (WRS) and potential Mars missions.
The SOW outlines three main tasks over a 12-month period: Task 1 involves consulting on biofilm science and engineering, including development of biofilm rubrics and criteria; Task 3 requires publication support for ICES papers and presentations, including travel support; and Task 4 focuses on studying higher H2O2 dosage effectiveness in biofilm mitigation, including testing in pristine and biofilmed systems, evaluating oxygen level impacts, and developing implementation plans for biofilm test stand testing. The work aims to address problems with biofilm accumulation in wastewater holding tanks that can disrupt system operations. Key objectives include evaluating dormancy effects, troubleshooting technologies for uncrewed Mars missions, addressing resin ratios and housing issues, managing test data, studying H2O2 infusion potential, and supporting full-scale flushing tests. All deliverables must be completed within one year and submitted to NASA MSFC.
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| File | Type | Posted |
|---|---|---|
| SATPC0037502 Tab 06 RDSS..pdf | ||
| SATPC0037502 Tab 07 Capability Statement SAM.gov.pdf |
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NASA Statement of Work
Mitigation and Prevention of Biofouling and Biofilm Growth in Wastewater Processing Assembly
29 January 2025
MSFC Biofilm Working Group
George C. Marshall Space Flight Center Engineering Directorate, Space Systems Department
INTRODUCTION
The International Space Station Water Recovery System (WRS) achieves near total recovery of potable water via the combined processes of the Urine Processor Assembly (UPA) and the Water Processor Assembly (WPA). However, biofouling in a wastewater holding tank at the start of the WPA process particularly in the form of biofilm formation can accumulate to a point of disrupting system operation by causing interruptions or blockages of flow within lines and valves surrounding the accumulated growth. A method of biofilm growth mitigation or prevention is necessary to avoid system interruption and hardware replacement that is costly in both crew time and resources.
PROJECT RESEARCH GOALS AND OBJECTIVES
Goal
The overall goal of this project is to evaluate the effects of dormancy, troubleshoot imminent technologies for biofilm mitigation in uncrewed dormancy for Mars missions and its impacts.
These evaluations will seek to inform:
1. Resin ratios and housing issues.
2. Test data availability and management.
3. Infusion potential of H2O2 into biofilm mitigation.
4. Continue efforts that inform dormancy shutdown and restart.
5. Determine any issues with oxygen availability.
6. Full scale flushing test support.
TASKS AND ASSOCIATED COST
The three goals are broken down into three areas of work. In addition to the wet lab, writing, and analysis work, the partner will engage in a consulting task for the NASA MSFC. All tasks shall be completed in one year. All deliverables must be delivered to NASA MSFC by the end of the year. The duration of this contract is one year.
Total Cost and Tasks Breakdown. *Total duration 12 months (various tasks overlap).
TASK DESCRIPTION DURATION
Task 1 Consulting 12-months
Task 3 Publication of FY23 and FY24 Work 12-months
Task 4 Higher H2O2 Dosage Based on Recovery Studies 12-months
SCOPE OF WORK (1-year)
Task 1. Consulting o General biofilm science and engineering consulting.
o Aid in the development of the biofilm rubric and criteria.
Task 3. Publication of FY23 and FY24 Work o Publication support for ICES papers and presentation o Support for travel to ICES
Task 4. Higher H2O2 Dosage Based on Recovery Studies o Testing to show higher H2O2 concentration effectiveness in pristine and already biofilmed systems.
o Consider H2O2 effect on system oxygen level (such as WPA) o Scope must include reasonable concentrations to infuse into emerging current h2o2 recovery hardware from NASA and technology in development at JSC o Calculations and testing for dosage and hardware requirements specifically for biofilm.
o Assistance in implementation of dosage plan for biofilm test stand testing
DELIVERABLES (1-year deliverables)
Task 1. Consulting o Attendance to meetings in order to discuss current topics and troubleshooting.
Task 3. Publication of FY23 and FY24 Work o Paper and conference
Task 4. Higher H2O2 Dosage Based on Recovery Studies o Technology infusion design and test data.
o Data supporting H2O2 in higher dosage biofilm effectiveness
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