| Theme | Sub-theme |
| Technical | Not efficient Not commonly used worldwide Complicated Not yet tested in the gulf region Not suitable for mixed waste (no segregation) |
| Political | Absence of national strategy for waste management Needs to privatize waste management sector to enable them |
| Managerial | Needs very special training programs Needs very high skilled manpower Limited technical experience |
| Economic | High cost, expensive, not feasible No market for the end product Needs financing instruction to developers Fuel cost subsidy No incentives Not economically attractive with high risk of failure |