Looking at the Sewage ...

Looking at the Sewage Treatment Problem Forces You Into Limited Outcomes

Before I start one thing I should comment on right away is the concept of using sewage for food production. Though I agree 100% in taking organic waste and using it for food production - sewage is something completely different and filled with many problems if you do not use a system that sophisticated enough to kill pathogens and deal with such toxins as oil, chemo therapy, detergents, and the millions of chemicals humans dispense. 

Cities such as Kabul have far more complex issues that should also be looked at as well versus using systems that will eventually collapse or pollute ground water which may already be thought of as a lost cause due to the current level of pollution.

Corruption can also be a major factor that is blocking solutions that would be far superior for the community and of course greed is always an issue. 

If one was able to look at the situation openly it might be possible to come up with radical solutions that in the end are far more practical. For example a proper sewage system is possible if all infrastructure is dealt with at the same time - this can be done by leveling one part of the city at a time when it become impossible to deal with the sins of the past. There is an opportunity to deal with sewage, clean water, renewable energy, and disease control using technology that is extremely beneficial to the community as a whole versus a few companies. Even industry should be looked at for ways to optimize water usage which as one writer commented on impacts how sewage is handled.

Good luck with your project.

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