污水处理过程中的“碳中和”技术

The technology of "carbon neutral" in the sewage treatment

全球变暖愈演愈烈,其主要原因在于大量的温室气体二氧化碳的排放。为此低碳生产、生活势在必行,于是近年来许多学者提出了碳中和理念。在污水处理过程中水中的COD被微生物消耗,却产生了温室气体二氧化碳并排入了空气当中,与此同时曝气等过程中的动力消耗也产生了许多温室气体。水污染解决了却将污染转移到了空气当中。为实现碳中和的概念,污水厂首先剖析污水处理与碳排放之间的关系,明确发掘污水/污泥中有机能源对CO_2的综合减排效果,再据此提出细化的低碳技术。

global wanning is intensifying. The main reason is that a large amount of emissions of greenhouse gases. So,low carbon production and l ifestyle are imperative. Recent years,many scholars put forward the idea carbon neutral. In the sew-age treatment process, COD is consuming by microorganism. But it lets the greenhouse gas carbon dioxide into the air. At the same time,in the processes of aeration and other power consumption also produce many greenhouse gases. The pollution transports from water into air. To bui ld sewage plant closed to carbon neutral,first of all, we should analyze the sewage treat-ment and the relationship between the carbon emissions, and make the effect of excavation/sewage sludge organic energy synthesis to C02 emission reduction clear. Basic on it,we can put forward technologies of low - carbon.