“双碳”战略背景下我国厨余垃圾处理技术选择

Selection of kitchen waste treatment technology in China under the background of carbon peak and carbon neutralization strategy

着眼于餐厨垃圾处理方式与碳排放的关联点,基于典型案例分析,对不同类型处理技术进行了碳排放量估算,并以此为基础进行了对比分析。结果表明,厨余垃圾处理技术方案的选择因地而异。在人口密度较高的大城市,BEAI技术模式可以作为近期优选技术方案,RBEAW技术模式宜作为中远期优选技术方案;在地广人稀的西北地区,应优先采用厌氧消化技术,沼渣沼液可以用作农肥;在荒漠地区,可以采用生物直接技术,除杂后将水解液和水解残渣用作荒漠土壤改良剂。

This paper focuses on the correlation between kitchen waste treatment and carbon emission reduction. Based on the analysis of typical cases,the carbon emissions of different types of treatment technologies are estimated. The results show that Kitchen waste disposal technology should be selected according to different regional characteristics.In large cities with high population density,The BEAI technology model can be used as the preferred technology scheme at this stage;RBEAW technology mode should be used as the medium and long term preferred technology scheme.In the vast and sparsely populated northwest,Priority should be given to anaerobic digestion,Biogas residue and biogas slurry can be used as agricultural fertilizer,Hydrolysate and residue can be used as desert soil amendments.