Generation Mechanism of Hydrogen Cyanide in the Screened Scum and Sludge Incinerator of Night Soil Treatment Establishment

II. Study on Synthesis of Hydrogen Cyanide from Model Fuel Gas

Abstract

Hydrogen cyanide evolves in the screened scum and sludge incinerator of night soil treatment establishment.
Unaerobic fermentation of sludge produces methane and ammonia gases.
Screened scum ash or sludge ash was used as a catalyst in a reaction of methane with ammonia and the evolution of hydrogen cyanide was confirmed. The experimental results showed that the ash is a important factor of the evolution of hydrogen cyanide in the screened scum and sludge incinerator of night soil treatment establishment.