Torrefaction Processing for Human Solid Waste Management, Phase I

Metadata Updated: May 2, 2019

New technology is needed to collect, stabilize, recover useful materials, and store human fecal waste for long duration missions, both for crew safety, comfort and resource requirements and planetary protection. The proposed SBIR Phase I project addresses an innovative torrefaction (mild pyrolysis) processing approach that can be used to sterilize feces, control odor, and produce a stable, free flowing powder that can be easily stored or recycled, while simultaneously recovering all of the moisture, producing additional water, and only small amounts of other gases (CO2, CO, CH4) and liquids. The overall objective of the Phase I program is to demonstrate the feasibility of a near full (1/3) scale integrated Waste Collection/Torrefaction (WC/T) unit for fecal waste streams. The Phase I work will be accomplished in three tasks: 1) test unit design and construction; 2) laboratory testing on relevant waste streams; 3) evaluation and preliminary Phase II prototype design. This work plan will address the key questions about the WC/T unit feasibility for the application to human fecal waste and related solid waste streams. In addition, the torrefaction method can be applied using the same or similar conditions to other types of wet or dry cellulosic biomass (food, paper, wipes, clothing) which provides for some desirable redundancy in the waste management system. The Phase II prototype will be compatible with the Universal Waste Management System (UWMS) and complementary to the Heat Melt Compactor (HMC), both now under development by NASA. The torrefaction process can also be accomplished with minimal crew interactions, modest energy requirements and will be able to tolerate mixed or contaminated waste streams.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_33701
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Datagov Dedupe Retained 20190501230127
Harvest Object Id fb1aad69-3f07-49f8-b00b-3a9edb7d6b54
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2015-12-01
Homepage URL
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash da20b8f4b6c3f985a01d0fe353d0923d69718e34
Source Schema Version 1.1

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