Here you can find two State of the Art Reviews:

1) Recycling urban organic wastes in agriculture

Nadine Dulac (WASTE, Gouda, The Netherlands)

2) Reuse of wastewater in Urban Agriculture

Martin Strauss (EAWAG/SANDEC, Switzerland)

Both papers were published in the Annotated Bibliography on Urban Agriculture, that was produced by ETC-RUAF and published by CTA, Wageningen, the Netherlands in 2001.