Click any of the 'Assessment' data points in the table to learn more about the data or to contribute.
| Categories | Sub-categories | Assessment questions | Assessment |
| Properties of the ore | Type of deposits | Is the technology suitable for hard rock deposits? | Yes |
| Is the technology suitable for alluvial gold deposits? | Yes | ||
| Is the technology suitable for eluvial gold deposits? | None | ||
| Type of ore | Is the technology suitable for free milling ores? | None | |
| Is the technology suitable for oxide ores? | None | ||
| Is the technology suitable for sulphide ores? | None | ||
| Is the technology suitable for carbonaceous ores? | None | ||
| Is the technology suitable for refractory ores? | None | ||
| Is the technology suitable for sand rock bearing ore? | None | ||
| Is the technology suitable for ore with clay material? | None | ||
| Is the technology suitable for ore bearing nuggets? | None | ||
| Is the technology suitable for ore in desert areas? | None | ||
| Is the technology suitable for ore in wet conditions? | None | ||
| Is the technology suitable for ore in coarse gravels? | None | ||
| Is the technology suitable for ore in fine gravels? | None | ||
| Grade/gold content | Is the technology suitable for high grade ores? | None | |
| Is the technology suitable for low grade ores? | None | ||
| Grain size of the gold) | Is the technology suitable for fine grained gold? | None | |
| Is the technology suitable for course grained gold? | None | ||
| Is the technology suitable for mixed fine and course material? | None | ||
| Is the technology suitable for very/ultra fine grained gold? | None | ||
| Feed volume (batch volume) | Is the technology suitable for large quantity of feed material? | None | |
| Is the technology suitable for small quantity of feed material? | Yes | ||
| Operationals requirements | Cost of equipment | Are the costs of procuring the technology affordable to artisanal miners? | No |
| Are the costs of procuring the technology affordable to small-scale miners? | No | ||
| Are the costs of operating the technology affordable to artisanal miners? | None | ||
| Are the costs of operating the technology affordable to small-scale miners? | None | ||
| Are the costs of maintanance and replacement affordable to small-scale miners? | None | ||
| Are the costs of maintanance and replacement affordable to artisanal miners? | None | ||
| Utilities and inputs required | Does the technology require water? | Yes | |
| Is the amount of water required suitable to processing by individual miners? | None | ||
| Does the technology require electricity or power source? | None | ||
| Is the amount of electricity required suitable to processing by individual miners? | Yes | ||
| Does the technology requre diesel? | None | ||
| Is the amount of diesel required suitable to processing by individual miners? | None | ||
| Does the technology require reagents during processing? | No | ||
| Is the amount of reagents suitable for processing by individual miners? | None | ||
| Does the technology require any other infrastructure? | No | ||
| Type of organisation | Does the technology allow operation by individual miners? | Yes | |
| Does the technology allow operation by group of miners? | Yes | ||
| Does the technology allow operation by organisations? | No | ||
| Does the technology allow operation by processing plants? | No | ||
| Does the technology work only with a continous system? | No | ||
| Does the technology work with batch and continous systems? | No | ||
| Does the technology work only with a batch system? | Yes | ||
| Processing flowsheet and performance of the techology | Processing flow | Does the technology work as a standalone? | Yes |
| Does the technology work as part of a process system? | No | ||
| Gold recovery | Does the technology offer high recovery rates compared to the amalgamation process? | Yes | |
| What are the typical gold recoveries for this technology? | 80%-90% | ||
| Does the technology produce gold directly? | Yes | ||
| Does the technology produce gold directly but in a different form to be converted to gold? | No | ||
| Does the technology require other processes to recover the gold? | None | ||
| Are there potential gold losses during processing with this technology? | Yes | ||
| Processing time | Does the technology offer less processing time compared to the amalgation process? | None | |
| Tailings | Can the technology re-process tailings? | Yes | |
| Recovery of other minerals | Can the technology recover other minerals in addition to gold? | Yes | |
| Visual tracking and monitoring | Does the technology allow visual tracking and/or monitoring? | Yes | |
| Local considerations | Availability of the equipment | Does the technology make use of equipment that is locally available? | No |
| Availability of the inputs | Does the technology require inputs that can be locally sourced? | None | |
| Scalability of the technology | Can the technology be scaled up or down to suit the spectrum of ASGM activities? | Yes | |
| Adaptability of the technology | Can the technology be used in remote areas? | None | |
| Ease of use/learning (skills requirement) | Is the technology easy to use or learn? | No | |
| Does the technology require knowledge /skills on metallurgy to use? | Yes | ||
| Capacity to maintain | Is the technology easy to maintain? | None | |
| Health, safety and environment Risks | Health and safety hazards | Does the recovery of gold using this technology pose any health and safety hazards? | Yes |
| Environmental risks | Does the recovery of gold using this technology pose any environmental risks? | No |
Click any of the data points in the table to learn more about the data and how to contribute.
Learn more about the data to this page and how you can contributeUse this section to discuss anything related to the Knudsen Bowl. You can also ask the community questions or answer questions from other atlas community members.
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