摘要: This paper describes a process that combines the energy-conserving features of a multiple effect evaporator with a chemical reactor to treat wastewater and sludges containing heavy metals, suspended solids, and organic compounds. ... 展开 This paper describes a process that combines the energy-conserving features of a multiple effect evaporator with a chemical reactor to treat wastewater and sludges containing heavy metals, suspended solids, and organic compounds. Temperatures and pressures can be controlled such that the organic species can be made to evaporate with the steam, which could be superheated to promote the destruction of the organic species via hydrolysis and thermal decomposition. The product stream can be passed over a catalyst bed where a reagent such as oxygen, ozone, or hydrogen can be introduced to clean up the product stream further. As a result, the residual (thickened) wastewater or sludge is reduced in mass and volume. The treatment of its heavy-metals content will thus be less expensive. The process employs a combination of commercially available equipment. The evaporator may require a slight modification to be able to handle sludges containing high levels of solids. The process runs continuously and requires minimal human interaction. 1 fig. 收起